Preplant and post-plant tillage for full-season soybean on clayey and silt loam soils

Popp, Michael P.; Keisling, T. C.; Manning, Patrick; Annis, D. C.

doi:10.1081/css-120000243

Cited by 3 publications

(2 citation statements)

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“…Soil moisture conservation and retention is a benefit for no‐tillage under dry conditions and on moderate‐ to well‐drained soils. However, wet springs and poorly drained soils tend to reduce yields in no‐tillage compared to conventional tillage (2,7,14,20,21,23,27,33,43,46,47, 54,55,62,73,79,80,99, 101,103). An understanding of the influence of geography and environment on the relative performance of no‐till compared to conventional tillage will help crop breeders develop soybean cultivars and corn hybrids that are optimized for high‐residue tillage.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Tillage on Corn and Soybean Yield in the United States and Canada

2006

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An extensive literature review was conducted of corn and soybean research that compared yields of no‐tillage to conventional fall tillage systems. The objective was to test the hypothesis that no‐till has a different effect on corn and soybean yields in different regions of the United States and Canada. The trial results were mapped to look for geographic and environmental patterns in the relative performance of no‐tillage to conventional tillage on corn and soybean yield. The national average difference in corn and soybean yield between no‐tillage and conventional tillage was negligible. A map of the tillage yield comparisons was created for the U.S. and Canada. No‐till tended to have greater yields than conventional tillage in the south and west regions. The two tillage systems had similar yields in the central U.S., and no‐till typically produced lower yields than conventional tillage in the northern U.S. and Canada. No‐tillage had greater corn and soybean yields than conventional tillage on moderate‐ to well‐drained soils, but slightly lower yields than conventional tillage on poorly drained soils. Corn and soybean yields tended to benefit more from crop rotation in no‐till as compared to continuous cropping. Future tillage research should focus on optimizing successful high residue no‐tillage or strip‐tillage production systems instead of making comparisons to conventional tillage systems.

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Section: Introductionmentioning

confidence: 99%

“…The comparative economics of tillage can vary by region, cropping system, variable input costs, risk aversion, and management experience among other factors. The economics of studies utilizing older technology also do not apply very well to current conditions (8,11,15,21,26,38, 63,64,65,74,78,79,80,82,86,96, 106,108,109).…”

Section: Introductionmentioning

confidence: 99%

Influence of Tillage on Corn and Soybean Yield in the United States and Canada

2006

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Assessment of Plant‐Available Potassium for No‐Till, Rainfed Soybean

Fernández

Brouder

Beyrouty

et al. 2008

Soil Science Soc of Amer J

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Temporal and spatial availability of K can influence soybean [Glycine max (L.) Merr.] productivity. This study quantified the impact of initial soil K concentrations, soil‐water content, and soybean K uptake on soil K pools (water‐extractable solution‐phase K [Ksol], 1 mol L−1 NH4OAc‐extractable K, referred to as exchangeable K (Kexch), and 5‐min sodium tetraphenylboron [NaTPB] extractable K [KTPB]) and compared predictions of plant K availability using the NaTPB vs. NH4OAc tests. Soil and soybean samples were collected five times between the VE and R6 development stages in 2003 and 2004 from fallow and cropped no‐till Toronto–Millbrook silt loam Alfisols at the Throckmorton Purdue Agricultural Center. Gravimetric soil water content was measured weekly during the growing season. Low‐, medium‐, and high‐K fertility plots were replicated four times. Initial Kexch levels ranged from 60 to 290 and from 50 to 90 mg kg−1 at the 0‐ to 10‐ and 10‐ to 20‐cm depths, respectively. Medium‐ and high‐fertility soils had the highest grain yields. The 0‐ to 5‐cm soil layer had the highest Kexch levels, water availability, and soybean K uptake. Compared with Kexch, Ksol levels were less stratified and the surface layer was less dynamic. The NaTPB extraction was a better predictor of soybean K uptake in 1 yr, but across both years, NH4OAc was superior. Potassium measurements in the 0‐ to 10‐cm soil layer provided slightly better estimates of plant K uptake than those in the 0‐ to 20‐cm layer. Greater water availability and K uptake in the 0‐ to 5‐cm soil layer suggest that under evenly distributed, intermittent rainfall conditions in somewhat poorly drained soils, vertical soil K stratification might not be a concern for no‐till soybean production.

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EnVesting in an Agricultural Legacy: Design and Implementation of a Targeted Young and Beginning Farmer Loan Program in Arkansas

Goeringer¹,

Goodwin²,

Dixon³

et al. 2013

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Preplant and post-plant tillage for full-season soybean on clayey and silt loam soils

Cited by 3 publications

References 6 publications

Influence of Tillage on Corn and Soybean Yield in the United States and Canada

Influence of Tillage on Corn and Soybean Yield in the United States and Canada

Assessment of Plant‐Available Potassium for No‐Till, Rainfed Soybean

EnVesting in an Agricultural Legacy: Design and Implementation of a Targeted Young and Beginning Farmer Loan Program in Arkansas

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