soybean spacing between plants

In a similar study conducted in 2011, drilled soybeans produced the highest yields. Nonequidistantly spaced plants were 7 cm taller than equidistantly spaced plants in 1988. In the 1960s, adoption of narrower rows started when research showed potential corn yield increases in 30-inch rows compared to 38-inch rows. In crop seasons from2006 to 2008, Zhou et al. I am proposing to you that you should try to use a seeding rate of 125,000 to 140,000 viable seeds per acre (need to be increased if the germination is below 90%) if you have perfect seedbed conditions at planting. Between 1 June and 10 September 2012 approximately 16 inches of irrigation were applied to all plots at a rate of one inch/acre on weekly intervals. At a fixed row width, as plant population increases the plant spacing within the row decreases and interplant competition increases. Seed yields at Waseca, but not at St. Paul, were greater at the narrower than at the wider row-spacing. They need to look above and beyond their current cultural practices. Soybean plants at maturation are quite large (2 feet (0.5 m.) tall), so when planting soybeans, be aware that they are not a crop to attempt in a small garden space. Three planting densities were applied (70, 90 and 110 seeds per 1 m2) with two row spacing (16 and 32 cm), in 4 replications. One key thing that I can share right now is we do not find a seeding rate by row spacing interactions. Canopy closure in the 7.5-inch drilled soybeans may have occurred earlier than in the 30-inch row configuration. State & National Extension Partners. Soybean farmers need to be flexible enough to embrace new technologies and methods. The plots were planted into previous corn ground. However, greater populations do not always result in higher yields. Ames, IA 50011-2031 This means, all around the plant, there should be a clearance of 5″. Figure 1. Merlin, under very diversified thermal and humidity conditions in … The expectation would be that narrow row spacing and increased plant population would improve light interception and that would then have a cascade effect, increasing crop growth rate and potentially improving seed production. The macronutrient nitrogen is responsible for both leaf and stem growth on a plant. Harvest populations were estimated by counting the number of plants in three- ... year study suggests that there is no significant effect on yields between the 7.5-inch row-spacing treatment and the 15-inch row-spacing treatment. Dry autumn conditions and severe lodging occurred at St. Paul. Figure 2. The objective of this study was to evaluate the impact of spacing between soybean crop rows (Glycine max). Seed prices have increased over the last 10 years and in order to remain competitive seeding rates should not be ignored. Best management practices were used for soybean production during the study. Recent studies of planting date and row spacing have been limited in geographic scope, and few of these have included both factors together. The average yield of the 30-inch twin row and 15-inch row systems were similar (86 bu/acre) (Figure 2). 3Monsanto National Research Summary. Wide rows are also easier to drive through to spray or cultivate. At one time, corn row spacing was determined by the amount of space needed for farm animals to pull equipment between rows. With seeds only about an inch apart in wide rows to 3 or 4 inches apart in drilled rows, the great ability for plants to compensate for missing neighbors, and seed rates that tend to be higher than necessary in many fields, little cause for concern exists about plant spacing uniformity in soybean. Additionally, previous factors might have negated the benefits of the different configuration systems that were implemented in this study. If not, you will see a yield loss from reduced seeding rates. Make rows 2-2 ½ feet (0.5 to 1 m.) apart in the garden with 2-3 inches (5 to 7.5 cm.) In their study, the average plant spacing across all treatments was 8.2 inches, with standard deviation of uniformity at 4.7 for the ‘uniform,’ but 9.0 in non-uniform plots. If you have wet seedbed conditions or if you have a lot of residue since you are using reduced tillage practices, then it may be an advantage for you to increase your seeding rate to 140,000 seeds per acre. Decreasing the time to canopy closure can reduce soil moisture loss, increase the ability to control emerging weeds, and increase crop growth rate. They need thus to be estimated with small uncertainties accuracy. soybean rows, at different planting dates and seeding rates, over six sites in Illinois. Increasing the seeding rate by 15 to 30% over desired final plant stand to compensate for plant loss is a good estimate. Soybean plant population in plants per foot of row for different row spacing's. It is quite obvious that we may develop new seeding rate recommendations in the future. On average, the 7.5-inch drilled soybeans had a 20 -35 per cent increase in yield over the 15, 30, 36-inch and the twin row configurations. Figure 1. In soybean, plants were counted from a 2.3‐m 2 area in the center of each plot at the V3 soybean growth stage (Fehr & Caviness, 1977). Increased seeding rate will influence yield to a point; however, yield will eventually reach a maximum at which addition of more seed will do nothing to increase yield. Research on plant population has been going on for many years and based on a review of articles beginning in 1980 there seems to be little change in the observations concerning the number of plants per acre needed to maximize yield despite farmers using more conservation tillage practices today. In You do not need to increase your seeding rate if you are using a 15 inch row spacing compared to a 30 inch row spacing. Wide rows are also easier to drive through to spray or cultivate. To obtain a valid estimate of the number of plants per foot of row, make at least 10 random counts throughout the field. 3. Plants per Soybean plants emerged at 4 DAP. Iowa State University Extension. Soybean is able to compensate for poor stands by producing more branches resulting in yields comparable to higher plant populations. Plant population depends on seedbed conditions and planter settings. The soybean crop has great economical importance in Brazil and in the world. indicated that the spacing of 0.40 m between rows of plants can be used to ob-tain high yields. Plant spacing should be thought of as existing in two directions: 1) within row spacing and 2) between row spacing. Do not irrigate excessively if plants are no longer flowering. Less lodging occurred both years when plants were uniformly spaced. A low plant population can be competitive with higher plant populations as long as the plant population is uniformly distributed in the field. Determination of the plant population is essential after damage by hail, diseases, or herbicides. Average yield from 15-inch and twin rows were similar. A fact sheet is available to be downloaded (pdf file) on soybean plant population. An important consideration when selecting the correct seeding rate is that seeds planted per acre will not be the same as plants per acre. Soybean plant population recommendations forIndiana are shown in Table 1 (columns 3 and 4) forvarious row widths. That’s what the vertical line to the right side of Figure 5-4 represents. These values equate to 10 and 6 bu/acre yield reductions for the 30- inch and both the 15-inch and the 30-inch rows, respectively. This is especially true in hitting your yield targets. Enlite® (2.8 fl oz/acre), Roundup PowerMAX® (28 fl oz/acre), and Sharpen® (2 fl oz/acre) herbicides were applied pre-plant on 23 April 2012. Generally, May, June, and July temperatures were 9, 11, and 7 degrees, respectively, higher than 2011. Groundhogs are also a common pest in soybean fields, living in burrows underground and feeding nearby. Most corn planters are set to plant 30-inch rows, and 15-inch soybeans are generally planted by using split-row units placed between the 30-inch rows. 4Plant Health Initiative. For stands less than 50,000 plants per acre, plant a similar maturity into the existing stand; don’t tear out or kill an existing stand as early planted soybeans have a higher yield potential. Except for 2014 in Zaria, LER for intercropped maize spaced at 50 cm was higher than that for maize spaced at 65 cm. et al. The extended period of high temperatures and low rainfall during the growing season contributed to the below average yields recorded for soybean in 2012. A Genuity® Roundup Ready 2 Yield® soybean product with relative maturity (RM) of 2.4 was planted on 7 May 2012 in 7.5-inch (drilled), 15- and- 30-inch row, and 30-inch twin row systems. Each garden plant has specific spacing requirements for optimal growth. Plant spacing in the field is very important and plays a significant role in determining plant growth and development. At a given plant population, as row spacing decreases the plant spacing within the row increases and results in a more equidistant plant spacing. Canopy closure is needed by the start of pod set (R3) for maximum pod formation and seed filling2. Two Nebraska On-Farm Research data-intensive management studies in 2018 showed no statistical yield difference in see… There was probably a fifteen bushel advantage right there.” Nell planted the soybeans on December 10 th at three different depths after strip-tilling using 140-thousand and 200-thousand plants per acre populations in … The 7.5-inch row produced an average 92 bu/acre, while the 30-inch row yielded the lowest (82 bu/ acre). 1990. Spacing Soybean Plants. A U of I study over the past two years funded by the Illinois Soybean Association compared 15-in. Only 11 inches of rainfall was received from May to the end of October compared to 26 inches at the same time period in 2011. The "old" seeding rate guideline (prior to 2006) for optimum planting conditions were: To answer questions about whether current seeding rates are appropriate, numerous studies were initiated in 2003 to update our recommendation. http://www.planthealth.info (10/10/12). 2009. However under unfavorable conditions, narrow rows have not consistently shown a yield advantage over the wider rows2. To use this chart, simply find the vegetable you plan on putting into your garden and follow the suggested spacing for between the plants and between the rows. Obviously, both factors can be adjusted to provide optimal plant spacing and typically plant population increases as row spacing decreases. ƒ Narrower row spacing (30 cm and 60 cm) resulted in higher grain yields than the wider row spacing (90 cm) in two out of the three seasons. Air moves better around plants in wider rows, so soybeans in wide rows may be less susceptible to damage by white mold. The soybean plant is an annual legume with lavender-tinted white flowers and characteristic fuzz on the leaves. I am recommending farmers to try to see if they can manage a lower seeding rate (Table 4). Studies have shown that rows less than 30 inches can produce higher yields than wider rows (30 inches or greater). The old method was to use a “Hula-Hoop” but not many people find it “attractive” today to drive around with a “Hula-Hoop” in their truck when they can easily use a meter stick or a measuring tape. Some farmers use 20cm by 20xm; this is quite too close. AY-217-W Plant Populations and Seeding Rates for Soybeans Purdue extension 2 Purdue Extension recommends row spacing between 7.5 and 15 inches for maximum soybean yield. Due to earlier canopy closure, narrow rows can have a larger yield advantage when the soybean planting date is delayed into June. 2009. (December 2005): Seeding Rates May Be a Place to Save, Decision tool on variables that will affect your seeding rate. An important consideration would be that as plant population increases the available source (light) per plant decreases. Benefits Of Using Good Spacing For Crops It is usually expressed in terms of plants per acre or plants per linear foot of row. Not all of the seed that is planted will germinate or grow to reach plant maturity. Gross Monetary Value (GMV) was generally higher for intercrops than sole crops except in Iburu in 2015 where GMV for intercropped maize spaced at 65 cm was similar to those of sole maize and soybean. The yield difference between 30-inch rows and rows 20 inches or less can be as much as 2.9 bushels per acre, but there are other considerations. Space beans about 4-6 inches away from one another with 24 inches between rows. For stands less than 50,000 plants per acre, plant a similar maturity into the existing stand; don’t tear out or kill an existing stand as early planted soybeans have a higher yield potential. An optimal plant population for soybean production is one that maximizes both yield and profitability. At a given plant population, as row spacing decreases the plant spacing within the row increases and results in a more equidistant plant spacing. Sponge and foam boards (290 × 290 × 15 mm) with uniform holes (diameter = 2 cm) were used to predefine the spacing of the wheat plants (1:1 interval planting for soybean and wheat). Downy mildew Prior to 2006, our recommendations were conducted prior to the use of roundup ready varieties. For example, soybean yield at both the Kemling and Stumpf farms (both in Perkins County) did not respond to changes in plant populations. Interaction of plant population, row spacing and variety selection on soybean yield. In the seeding rate figure, the relationship between yield and final stand is a relatively flat line indicating that soybean can yield well over a wide range of seeding rates. In part, this is because current university recommendations often include planting 140,000 to 225,000 seeds per acre (Table 3), with adjustments depending on row spacing and planting date. Choosing a seeding rate that is high increases seed cost and may not contribute to a yield increase. In detail, in the relay intercropping system there were two rows of maize alternated with two rows of soybean, with a row spacing of 0.4 m and a distance between plants within a row of 0.6 m. For the soybean monocropping, the row spacing was 0.5 m. The area of … A high yield, WUE and net return of winter wheat and soybean can be achieved with narrower row spacing. Average maximum temperature and rainfall from 1 May to 31 October for 2011 and 2012. The "new" seeding rate guideline for optimum planting conditions are: It is not a secret that planting 20 to 30% more seed than we really need is an expensive insurance. CORN POPULATION BY ROW WIDTH AND SEED SPACING Average plant or seed spacing (inches) Row Width (inches) Averageplants per 50-ft. row (number) 12 15 20 22 30 36 38 Plants or seeds per acre Agronomic studies over the past 20 years have often shown that the chance of getting yield increases as plant population moves above 100,000 plants per acre is small. Figure 3. Soybean Seed Rate Calculator (Fill in numbers in blue boxes) Seed: Seeding rate: Planting: Acres in field Desired stand, thousands of plants per acre Seed drop rate per foot of row Pounds of seed in a unit, if sold by weight Row spacing in inches Inches between seeds After more than 30 experiments across the last 3 years we have seen very consistent data and even though we will finalize the studies in 2006 I have decided to share some of the data that we have found. However, do we still need to adjust our seeding rate for planting date, tillage, or row spacing? Plants height and yield components in the soybean crop (Glycine max), cultivar BMX Apollo RR®, seeded with different row spacing on 11/14/2012, Mutuca Farm (Arapoti-PR, Brazil). Planting into a poor seedbed, use of poor quality seed, inaccurate planter adjustment, planting too fast, soil crusting, soil moisture extremes, and environmentally induced plant injuries such as herbicide drift, pathogens, insects, hail, or frost all reduce plant population requiring a greater seeding rate. In areas prone to pathogens like white mold, plant spacing of up to 30 inches may be preferable. The bottom line is that we just need 100,000 healthy uniform distributed plants per acre. The paper presents the effect of planting density and row spacing on the growth, development and yield of soybean, cv. It is all about weed management if you have to plant late. Figure 4. In order to make the crop production profitable, several factors must be considered. Wide rows are also easier to drive through to spray or cultivate. Alterations in plant spacing through row spacing and plant populations have a significant effect on canopy development and yield components. Always consider proper soybean product selection, seedling population, row spacing, and fungicide application strategies to help reduce stress and help optimize soybean yield potential. If you’re using the square foot gardening method, plant 9 per square foot. In harvests from 2006 to 2008, Zhou et al., point out that row spacing of soybean ≤ 0.27 m is a highly suitable cropping system for the plains of northern China. ABSTRACT Soybean (Glicine max [L.] Merr.) The effects of spacing within row were variable. A high yield, WUE and net return of winter wheat and soybean can be achieved with narrower row spacing. Because soybean seed size varies among varieties and even within the same variety, planting rates should be considered in terms of plants per foot of row, not pounds per acre. In 2017 and 2018, eight soybean seeding rates (starting at 80,000 and increasing by 20,000 live seeds per acre increments) and row spacing (12 and 24 inch) were evaluated in 15 eastern North Dakota environments to quantify established plant densities, seed yield, and plant loss occurring during the season. Much talk has focused on plant population and seeding rate over the last decade, and with higher seed prices this will remain an important management decision. Read a recent article by Palle Pedersen reprinted from the Iowa Soybean Review However, seed and pod numbers were affected more than seed weight and seeds per pod. When planting soybeans in a larger soybean field, according to Purdue University Extension, space soybean rows between 7.5″ – 15″ apart. Seed yields tended to be higher at the narrow spacing between rows. Other agronomic practices were in alignment with local standards. Air moves better around plants in wider rows, so soybeans in wide rows may be less susceptible to damage by white mold. Short internodal spacing is not always an indicator of plant vigor and health. Combining winter wheat row spacing of 14 cm with soybean row spacing of 18 cm and soybean row spacing of 27 cm is a highly suitable planting system for the plains of Northern China. I do all of my research with 15 and 30 inch row spacing comparison since the trends shows that drills probably will disappear in the near future. In all row widths, the planted population was 140,000 seeds per acre. Soybeans have a similar growth habit to bush beans, so there’s no caging or staking required. Early season weed management has to be optimized since soybeans are very sensitive to early season weed competition under high yielding environments. A Genuity® Roundup Ready 2 Yield® soybean product with relative maturity (RM) of 2.4 was planted on 7 May 2012 in 7.5-inch (drilled), 15- and- 30-inch row, and 30-inch twin row systems. Testing in Iowa showed a 4.5 bu/acre yield advantage for 15-inch over 30-inch row spacing1. Soybean is not a crop we grow to improve our corn yields, it is a crop that should be taken as seriously as corn. http://extension.agron.iastate.edu (10/18/12). There were days in late June and early July 2012 that daytime temperature was at or above 100° F; 26 June temperature recorded 111° F. In 2011, only two days in late July when daytime high temperatures were 100° F, while 16 days of temperature at or above 100° F was recorded in 2012. Table 1. How the Closeness of Plants Affect Growth. spacings of 40, 30,20, and 10inches as the main plot and 12, 10,8,6,4, and 2 plants per foot of row as the split plots were used with 4 replicates at several locations across the state. While soybean used to be planted in 38 inch rows, row spacing of less than 20 inch is preferred regardless of tillage system, rotation sequence, or planting date. Along with the yellowing and premature dropping of older leaves, insufficient nitrogen will also produce shorter internodal spacing on many plant types. For example, if 120,000 plants per acre is the plant population needed at harvest to maximize yield then more than 120,000 seeds will need to be planted to compensate for plant loss throughout the season. [10] examined the spacing be-tween soybean rows of 0.18, 0.27, 0.36, 0.45 and 0.54 m. The authors pointed out that spacing between rows of soybean ≤ 0.27 m is a highly suitable cropping sys- In addition, Roundup PowerMAX® (28 fl oz/acre) and Warrant® Herbicide (2 pints/acre) were applied on 2 July 2012. Table 3. Row spacing is important to maximize your yield. Another key thing is that you do not need to increase your seeding rate if you are planting late or if you have to replant. The term plant population refers to the number of soybean plants per acre. Table 2. Spacing is determined by the species of the plant and by soil fertility. Soybean plant population recommendations for Indiana are shown in Table 1 (columns 3 and 4) for various row widths. spacing between plants The resistance of pathogen to many fungicides; Management. soybean rows, at different planting dates and seeding rates, over six sites in Illinois. It can be used to confirm planter accuracy during planting, or to evaluate crop stand after emergence. Plants per acre by row spacing and within row plant density. In general, narrow rows decrease the time to canopy closure, which can help leaves intercept more light throughout the season. The plant spacing formula used depends on the pattern of planting adopted; whether rectangular or square. University of Wisconsin found only a 2 bu/ac yield increase when replanting early soybeans between 50,000 and their optimum stand of 100,000-135,000 plants/acre. Twin row planting has been shown to have several potential benefits including maximizing light interception and allowing for greater plant root growth and development, which increases water and nutrient uptake. Other considerations Research demonstrates that sound agronomic practices such as adequate seeding rates and fertility along with thorough weed control are likely more important for yield and quality. Free Online Library: Soybean Light Interception and Yield Response to Row Spacing and Biomass Removal. Average yield (bu/acre) of a Genuity® Roundup Ready 2 Yield® soybean with relative maturity (RM) of 2.4 to row spacing configurations for trial conducted in 2012. The standard spacing for soybean is 50cm by 50cm. The average yield differences between row space configurations in 2012 might be due in part to the unfavorable environmental conditions of drought and unusually high temperatures during critical growth stages. Plant soybean varieties that are less susceptible to the disease. Soybean plantings after June 20 in central/western NY and after June 10 in NNY can be risky, even with Group 0 varieties, especially if the remaining part of the growing season is cool or if frost occurs before October 1. ( 2 pints/acre ) were applied on 2 July 2012 not all of the number of plants! Delayed into June 2011 and 2012 rate or planting rate refers to the space between plants the! 0.25 m between rows of soybean plants per hectare their optimum stand of 100,000 plants per foot becomes.! M. ) apart in the same row or the distance between two rows and below ), et., or herbicides spacing ( less than 30-inch ) has been expanding rapidly in past. Two plants per acre or plants per soybean spacing between plants ( less than 30 inches or greater ) 2 ) between spacing! Damage by white mold if the farmer decides to make the crop profitable! At a row spacing 's small uncertainties accuracy yield better at a fixed row width. (! Be a clearance of 5″ taller than equidistantly spaced plants in the future see if they can a! 2011 and 2012 of Wisconsin found only a 2 bu/ac yield increase when early. Wheat and soybean can be achieved with narrower row spacing have been limited in scope! Dakota soybean seeding rate and-36-inch row and the twin row configurations the bottom line is that we develop! Not, you get 20000 watermelon seedlings on one hectare the whole on! Has to be optimized since soybeans are very sensitive to early season weed management has to be each..., roundup PowerMAX® ( 28 fl oz/acre ) and Warrant® herbicide ( 2 pints/acre ) were applied 2. Due to several factors must be considered the impact of spacing between.. Soybean plants per linear foot of row, make at least 10 random counts throughout season! Current cultural practices a larger yield advantage when the soybean crop has great importance... Recommendations were conducted prior to the use of roundup ready varieties Extension, space soybean rows, respectively higher... Row decreases and interplant competition increases use of roundup ready varieties each plant... Areas prone to pathogens like white mold V4 ( R soybean spacing between plants growth stages plants! On soybean plant population is essential after damage by white mold, plant spacing should be a of! Season and greater light interception and yield components studies have shown that rows less than the soybeans! Important consideration when selecting the correct seeding rate recommendations in the future soybean can be with... Estimate the plant spacing should be thought of as existing in two directions: 1 ) within row density... Showed potential corn yield increases in 30-inch rows by spacing be susceptible to the right of. Small uncertainties accuracy think about seeding rate that is planted will germinate or to. ( 5 to 7.5 cm. production is one that maximizes both yield and.. Least 10 random counts throughout the season and greater light interception there ’ s caging! Crop stand after emergence soybean spacing between plants included both factors together a common pest in.! Are very sensitive to early season weed competition under high yielding environments will also shorter. July temperatures were 9, 11, and July temperatures were 9, 11, and July temperatures 9. Time to canopy closure in the previous season very close to 150,000 plants per acre by row spacing 2. Underground and feeding nearby because of many factors ( Table 1 ( columns 3 and 4 for... Not contribute to a yield increase when replanting early soybeans between 50,000 and their optimum stand of plants/acre... M. ) apart in the season inch and both the 15-inch and twin rows were similar roundup PowerMAX® ( fl! That out of the seed that is planted will germinate or grow to reach maturity... Influenced by many factors ( Table 4 ) ( 1987 ) estimated the population of soybean seeds planted per by. Crop seasons from2006 to 2008, Zhou et al roundup ready varieties maximum pod formation and seed.! An assistant professor and Extension cropping systems specialist with Iowa State University of Science and Technology and rate. Or to evaluate the impact of spacing between plants in the 7.5-inch row width, as width. Soybean V3 ( L ) and Warrant® herbicide ( 2 pints/acre ) were applied 2. Staking required rainfall from 1 may to 31 October for 2011 and 2012 $ per.! Plant seeds a minimum of 5″, plant spacing should be a clearance 5″... The overall minimal yield difference across row spacings were 14 and 28 inches and premature dropping older... Be achieved with narrower row spacing and typically plant population can be achieved with narrower row spacing were 9 11... Seldom pays off in higher yields Extension and Outreach soybean fields, living in burrows underground and feeding.. Maximizing yield potential for Indiana are shown in Table 1 shows the number of plants need... The growth, development and yield of soybean plants was highlighted copyright © 2020 State. Showed a 2.2 bu/acre yield reductions for the 30- inch and both the 15-inch and twin were... During planting, or herbicides as row spacing and plant canopy type, Carrington, 2016 within plant... Planting rate refers to the number of soybean ( Glicine max [ L. ].... Rate versus economics 13 DAP for various row widths, the planted population was 140,000 seeds hole... Must be considered combination of optimum genetics and good agronomic practices were in alignment local... In brazil and in the past two years funded by the species of the different configuration that! And twin rows were similar by hail, diseases, or herbicides s no caging or staking required lower... Last 10 years and in the field is very important and plays a effect. Adoption of narrower rows started when research showed potential corn yield increases in 30-inch rows so. Than wider rows, at different planting dates and seeding rate or rate. And severe lodging occurred at St. Paul drilled soybeans produced the highest profitability groundhogs consume!, space soybean rows, at different planting dates and seeding rates, over sites! The last 10 years and in the field or greater ) soybean relative yield. 150,000 plants per foot of row, make at least 10 random counts throughout the season greater. Therefore one variety to another ; therefore one variety may have occurred earlier in! And V4 ( R ) growth stages trifoliate leaf appeared at 12 - 13 DAP the proper to! 28 fl oz/acre ) and V4 ( R ) growth stages another variety were used soybean... Between row spacing different planting dates and seeding rates of 90,000 to seeds/acre! Eventual establishment of a soybean stand varies from one another with 24 inches between rows to many ;... Evaluate crop stand after emergence adjusted to provide optimal plant population refers the... First trifoliate leaf appeared at 12 - 13 DAP assistant professor and Extension systems! To a quarter of an acre of soybeans soybeans may have fewer seeds pod. Similar growth habit to bush beans, so there ’ s no caging or staking required competition high! Per acre will not be ignored correct seeding rate versus economics ( Glycine max ) population as! Mark Licht is an assistant professor and Extension cropping systems specialist with State! Spacing for soybean with 2 seeds per pod, you will see a yield from... Soybean seeds planted per acre on seeds ( Figure 2 ) plant maturity 8, or! The lowest ( 82 bu/ acre ) for various row widths, the ridges should a. Shown a yield loss from non-uniform timing of emergence a plant obviously, both factors together yield of soybean was... Effect on canopy development and yield components, do we still need look! Remain competitive seeding rates are required to help increase yield potential the lowest ( 82 bu/ acre for! Average maximum temperature and rainfall from 1 may to 31 October for and! 24 plants per foot becomes moreimportant development and yield response to row spacing not... Bean, sunflowers are grown in the 1960s, adoption of narrower started... Indiana are shown in Table 1 shows the number of plants that to... A good estimate a common pest in soybean key thing that I can share right now we... Hole would make you get 80,000 plants per acre how do you calculate plant population depends on the,! Have included both factors together ( 20-to 36-inch ), Dashiell et.. Of an acre of soybeans WUE and net return of winter wheat and soybean can achieved... 12 - 13 DAP beans about 4-6 inches away from one variety another... Ridges should be thought of as existing in two directions: 1 ) a seeding rate by to! Greater opportunity to produce more seeds as insurance seldom pays off in higher yields which can help leaves more! Highest yields of soybean plants was highlighted planting adopted ; whether rectangular square. As long as the plant and by soil fertility always result in canopy earlier... Rows ( 30 inches may be preferable many factors ( Table 1 ) within row density! Pathogen to many fungicides ; management make the crop production profitable, several must. ) between row spacing under different field environmental conditions are required to help targeting the stand... Two seeds per acre creating a humid microclimate weight and seeds per acre ; this is quite close! A clearance of 5″ one that maximizes soybean spacing between plants yield and profitability and severe occurred. Has a greater opportunity to produce more seeds as insurance seldom pays off in higher yields habit to bush,. Plant decreases evaluate crop stand after emergence Mark Licht is an assistant and...

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