Newsletter is produced by the Ohio State University Extension Agronomy Team, state specialists at The Ohio State University and the Ohio Agricultural Research and Development Center (OARDC). The increasing width of planters — many are now 60 feet wide — means that splitting rows with additional units makes planters very … In the last 10 years, studies show a 3 to 4 bu/acre yield advantage for soybeans planted in drilled narrow rows and 15-inch rows over 30-inch rows. Timely planting is critical for maximizing yield in soybeans, but using good judgement on field conditions plays a role that is equally important to determining yield potential. This calculator is designed to help you estimate the number of seed per foot of row. In many cases, the decline in drilled soybeans has been accompanied by an increase in acres converted to 15-inch rows. The 30-inch plot pictured below yielded 59 bu/acre while the 15 and 7.5-inch plots pictured below yielded 81 and 85 bu/acre, respectively. For machine planted the spacing is (60x5cm) with 1 seed per hole. Consider 15-inch Row Spacing in Soybean. April 2018. Best forage performance was obtained when soybean was planted at population levels comparable to those recommended for grain production (100,000 plants/acre). At the wider row spacings (20- to 36-inch), stands that vary +/- one plant per foot will differ little in yield. C.O.R.N. We connect with people in all stages of life, from young children to older adults. Planting date strongly influences soybean yield. The information presented here, along with any trade names used, is supplied with the understanding that no discrimination is intended and no endorsement is made by Ohio State University Extension is implied. Three planting densities were applied (70, 90 and 110 seeds per 1 m 2) with two row spacing (16 and 32 cm), in 4 replications. In June, the soybeans planted in 30-inch rows looked better than the soybeans planted in 15 and 7.5-inch row widths. Traditional unfermented food uses of soybeans include soy milk, from which tofu and tofu skin are made. Under good humidity and thermal conditions in 2016 and 2017, the yield of seeds and protein in soybean was 3.3 times higher than if exposed to extreme drought and accompanying high air temperatures in 2018 and 2019. Soybeans grown in narrow rows (≤ 15 inches) tend to out-yield soybean produced in wide row … Row spacing. While soybeans planted in a 15-inch row spacing can generally out-yield soybeans planted in a 30-inch row spacing, disease levels in a 15-inch row spacing can often be high enough that little yield advantage over the 30-inch row spacing might be observed in a high white mold environment. Over the years, the development of soybeans with tolerance to glyphosate, glufosinate, dicamba and 2,4-D have made a huge impact on the way we farm, adding more options to the weed control toolbox from which farmers can work. The study consisted of a series of nine trials conducted during 2008 to 2011 at the NDSU Carrington Research Extension Center and research sites in Prosper and Fargo. Seeding rates based on lbs/acre have little meaning since seed size com-monly varies from 13,000 to 24,000 seeds/pound. Recommended soybean seeding rates in Minnesota. Use the chart below as a reference when determining the right soybean for your operation. To grow soybeans, plant your seeds 1 and ½ inches deep and 3 inches apart in a fertilized seedbed, and give them just enough water to moisten the soil. The average relative soybean seed yield among row spacings, ranging from 7- to 30-inches, and averaged across planting rates and all North Dakota site-years is shown in Figure 2. 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. © 2020 Corteva. Growers might see reduced or no yield advantages with narrower rows if any of the following are present: moisture stress, brown stem rot, white mold, and nitrogen stress or soybean cyst nematodes. In most situations, 140,000 seeds per acre should result in at least 100,000 plants per acre at harvest. Soybeans have a similar growth habit to bush beans, so there’s no caging or staking required. wide rows with a drill on June 12. 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 However, the soybeans planted in 30-inch rows did not achieve canopy closure until after July 15. Figure 3. However, planting too early (before field conditions are adequate) comes with a risk. Irrigation significantly increased yield regardless of row spacing or planting date, but the increase was always greater for early plantings. Hybrid and variety responses are variable and subject to any number of environmental, disease and pest pressures. Research findings on Minnesota soybean seeding rates. When we talk about the fight against weeds in your soybean fields, herbicides and seeds with herbicide tolerance are often the first things that come to mind. Although every attempt is made to produce information that is complete, timely, and accurate, the pesticide user bears responsibility of consulting the pesticide label and adhering to those directions. The oil is then refined, blended for different applications, and sometimes hydrogenated. CFAES COVID-19 Resources: Safe and Healthy Buckeyes | COVID-19 Hub | CFAES Calendar. Individual results may vary. The relative soybean seed yield among row spacings, ranging from 7- to 30-inches, averaged across planting rates and all North Dakota site-years is shown in Figure 2. Assessing Seed Maturity. Environments favoring narrow-row widths include: fields with limited vegetative growth prior to flowering, shorter growing seasons, early soybean production systems to avoid drought, delayed planting situations and double-crop systems. CFAES Diversity | Nondiscrimination notice | Site Map, Soybean Planting Date, Seeding Rate, and Row Width, © 2020 The Ohio State University, College of Food, Agricultural, and Environmental Sciences, Fertility Factsheets, Bulletins, and Tools, Tri-State Fertilizer Recommendations (2020), https://stepupsoy.osu.edu/soybean-production/ohio-agronomy-guide-15th-edition, College of Food, Agricultural, and Environmental Sciences, Ohio Agricultural Research and Development Center, 2120 Fyffe Road | Room 3 Ag Admin Bldg. It is not uncommon in western Nebraska to see soybean seeding delayed until after irrigated corn is planted, and to do it in 30-inch rows and at 160,000 seeds/ac. See how adjusting row spacing when planting soybeans can help you manage weed pressure in your fields. Each soybean variety was grown in separate test blocks with each variety block containing three replicates of the two spacing treatments. Seeding rate. Do not plant early if the soil is excessively cold or wet. Percent residue cover after planting ranged from 7 to 15% for … Soybean germination begins when soil temperatures reach 50°F and moisture is present at the planting depth of 1-1.5 inches. Factors such as damping-off and pressure from bean leaf beetle are concerns to keep in mind, as well as the possibility of a late spring frost. Without irrigation, yield differences between planting dates were not significant. Please contact your Pioneer sales professional for information and management suggestions specific to your operation. The best soybean yields occur on well-drained, but not sandy soils having a pH of 6.5 or above. The greatest benefit of planting May 1 to mid-May is canopy closure which increases light interception, improves weed control by shading out weeds, and helps retain soil moisture. White mold development favors cool and wet conditions during soybean flowering. In Ohio, most soybeans are planted in row widths ≤ 15 inches. … Soybean plant population recommendations for Indiana are shown in Table 1 (columns 3 and 4) for various row widths. Two Nebraska On-Farm Research data-intensive management studies in 2018 showed no statistical yield difference in see… Let’s assume a plant stand of 100,000 plants/acre, and one plant is selected for pod count. Other than yield, important factors driving soybean row spacing decisions include equipment and time management issues during the planting season. The seed must imbibe (take-in) 50 percent of its weight in moisture in order for the germination process to begin and remain above 20 percent after the seed swells and the seed coat splits. Space beans about 4-6 inches away from one another with 24 inches between rows. Seed yields from the irrigated early plantings in 1984,1985, and 1986 averaged 3570, 2960, and 2695 kg ha −1, while the later plantings averaged 3115,1900, and 1425 kg ha −1, respectively. The soybean or soya bean (Glycine max) is a species of legume native to East Asia, widely grown for its edible bean, which has numerous uses.. When your seeds sprout, thin them by cutting the weak seedlings to the ground and spacing the remaining plants 4-6 inches apart. The soybean variety, Channel 2402, was seeded in 7.5 in. Seed depth and spacing Seed depth will mostly depend on soil type and soil conditions at planting time. Newsletter questions are directed to Extension and OARDC state specialists and associates at Ohio State. Agriculture and Natural Resources The objective of this study was to evaluate the impact of row spacing and seeding rate on the performance of soybean and to determine whether these management practices … The 170k seeding rate/30 in. Row width should be narrow enough for the soybean canopy to completely cover the interrow space by the time the soybeans begin to flower. When saving seeds from soybeans, separate varieties by at least 10-20 feet. either of the two spacing used, you would get 53,333 maize stands per hectare. For the soybean monocropping, the row spacing was 0.5 m. The area of each experimental plot was 36 m 2 (6×6 m). Numerous research studies over the past 40 years have evaluated soybean row spacing. 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