Abstract
Management Strategies for Double-Crop Soybean Planted After Wheat
Highlights
Sustainable intensification of agricultural systems should be better studied and practiced, with the objective of increasing food production to meet the global population’s needs
In 2017, precipitation was not well distributed, and the early planting date was affected by low precipitation during early season
Soybean can be managed in no-till (NT) systems, reducing costs due to less machinery, fuel, and labor expenses after the wheat harvest
Summary
Double-crop (DC) soybeans (Glycine max L.) are gaining popularity as an alternative system to intensify productivity without expanding the farming area and can potentially increase net return. The DC soybean system faces many challenges such as late planting, which decreases yield potential. A study was conducted in four site-years in Ashland Bottoms, KS, during the 2016 and 2017 growing seasons. In both years, the soybean variety planted was Asgrow 4232 (MG 4.2). Seven treatments were evaluated in each of the soybean planting dates: 1) common practice; 2) no seed treatment (without seed fungicide + insecticide treatment); 3) non-stay green (without foliar fungicide + insecticide application); 4) high seeding rate (180,000 seeds/a); 5) wide rows (30-inch row-spacing); 6) nitrogen (N) fixation (without late-fertilizer N application); and 7) kitchen sink (includes all management practices). The high plant population and the kitchen sink treatments presented maximum yields, while the common practice scenario showed the lowest yields
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