Response of Soybeans (<i>Glycine max</i>) to Planting in Untilled, Weedy Seedbed on Clay Soil

Heatherly, Larry G.; Elmore, C. Dennis

doi:10.1017/s0043174500068612

Cited by 45 publications

(55 citation statements)

References 11 publications

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“…Plots were 4 m (eight NRs or four WRs) wide and 21.5 m (IRR) or 30.5 m (NI) long in both years. All experiments were seeded into a stale seedbed (Heatherly and Elmore, 1983; Heatherly et al, 1993; Heatherly, 1999b) that had been tilled with a disk‐harrow and/or a spring‐tooth field cultivator in the fall. Glyphosate [ N ‐(phosphonomethyl)glycine] at either 560 (1997) or 840 (1998) g a.i.…”

Section: Methodsmentioning

confidence: 99%

Row Width and Weed Management Systems for Early Soybean Production System Plantings in the Midsouthern USA

2002

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such as weeds must be prevented within economic constraints. In previous research at Stoneville, where Management inputs that maximize economic return from the early drought was common during the reproductive period soybean [Glycine max (L.) Merr.] production system (ESPS) in the midsouthern USA have not been evaluated fully. Field studies were of soybean, level of weed management in nonirrigated conducted at Stoneville, MS (33؇26 N lat) to determine effect of weed L.G. Heatherly, USDA-ARS, Crop Genet. and Prod. Res. Unit, P.O. WRs in the ESPS is necessary. Box 343, Stoneville, MS 38776; S.R. Spurlock, Includes all operating expenses and equipment ownership costs but excludes charges for land, management, and general farm overhead. ‡ WTRT, weed management treatment: (1) pre-emergent (PRE) broadleaf and postemergent (POST) grass weed control, (2) POST broadleaf and grass weed control, and (3) PRE and POST broadleaf and POST grass weed control.

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Section: Methodsmentioning

confidence: 99%

Row Width and Weed Management Systems for Early Soybean Production System Plantings in the Midsouthern USA

2002

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“…Soybean production is greatly influenced by precipitation (Egli and Bruening, 1992). The determination of optimum planting date should take the regional rainfall pattern into consideration, because without optimum water condition, the benefit of early planting time could be negated (Heatherly and Elmore, 1983). Early planting can decrease the risks of water stress during growing season in some regions (Bowers, 1995; De Queiroz et al, 1998); however, sometimes delayed planting is suggested when there is sufficient rainfall (Muchow et al, 1994).…”

Section: Environmental Factorsmentioning

confidence: 99%

Effect of Planting Date on Soybean Growth, Yield, and Grain Quality: Review

Wiatrak

2012

Agronomy Journal

101

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Delayed planting date and unfavorable environmental conditions have a negative effect on soybean [Glycine max (L.) Merr.] growth, development, and yield. Changes in photoperiod, temperature, and precipitation with delayed planting affect the duration of vegetative and reproductive stages, number of branches and pods, plant height, leaf area index (LAI), and normalized difference vegetation index (NDVI), and hence the grain yield. Delayed planting can also affect the soybean seed quality by changing the oil and protein content. Environmental factors like extremely high temperature and drought stress, which are often associated with delayed planting, have also a negative effect on plant development and yield. Compared to optimum air temperature, reduction in photosynthetic rate during heat stress decreases seed set and size, and seed yield. Drought stress during reproductive stages reduces carbon dioxide exchange rate (CER), photosynthesis, sugar production, and flow of metabolites to the expanding cells, which increases flower and pod abortion and decreases vegetative growth, duration of the seed filling stage, seed number, and seed size. Generally, the combined effect of photoperiod, temperature, and precipitation with delayed planting most likely contributes to decreased duration of vegetative and reproductive growth stages, reduced photosynthesis and plant growth, and therefore significant reduction in grain yield of soybean.

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“…However, development of soil crusts that increase runoff and impede infiltration is more prevalent with conservation strategies (Dao, 1993; Pikul and Zuzel, 1994). Soil texture can further influence the choice of a suitable tillage system for optimizing yields during stress periods (Cameron and Hermawan, 1993; Heatherly and Elmore, 1983). For example, clayey soils differ from silt loam soils in their infiltration and soil moisture retention capabilities (Sopher and Baird, 1978, p. 62).…”

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Planting Date, Cultivar, and Tillage System Effects on Dryland Soybean Production

Popp¹,

Keisling

McNew

et al. 2002

Agronomy Journal

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on yield-enhancing production practices such as tillage system, planting date, and cultivar selection. Soybean [Glycine max (L.) Merr.] yields from nonirrigated fieldsTillage systems can impact soil moisture status bein the midsouthern USA have consistently lagged behind those from cause tillage influences infiltration, runoff, evaporation, irrigated fields. Nonetheless, nonirrigated fields still attract a larger and soil water storage. With conventional tillage, weeds share of soybean acreage in this region. This is likely due to various irrigation constraints, which include land-leasing arrangements, water that compete with crops for moisture and other growth shortage, lack of management time, and low levels of operating capital.resources are mechanically removed. On the other hand, The objective of this study was to identify production system compoconventional tillage can promote drought stress through nents consisting of tillage, cultivar selection, and planting-date stratelow residue cover, increased runoff, and reduced water gies for a soil series that are most suitable for enhancing economic infiltration (Dao, 1993;Unger and Cassel, 1991; Unger returns to dryland soybean. Data from field experiments in three and Fulton, 1989). By contrast, no-till and other conser-Arkansas locations in 1995 and 1996 were used for the study. Leading vation strategies affect soil water content through reproduction systems were identified on the basis of their net returns.duced runoff or erosion and improved residue cover. Results of the study show that the performance of the productionHowever, development of soil crusts that increase runoff systems in terms of crop yields and net returns is influenced by location and impede infiltration is more prevalent with conservaand production year. While the evidence on pure planting-date effects AR 72701; and C.R. Dillon,

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Response of Soybeans (Glycine max) to Planting in Untilled, Weedy Seedbed on Clay Soil

Cited by 45 publications

References 11 publications

Row Width and Weed Management Systems for Early Soybean Production System Plantings in the Midsouthern USA

Row Width and Weed Management Systems for Early Soybean Production System Plantings in the Midsouthern USA

Effect of Planting Date on Soybean Growth, Yield, and Grain Quality: Review

Planting Date, Cultivar, and Tillage System Effects on Dryland Soybean Production

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