Abstract
With double-crop soybean production, fertilizer is typically applied prior to planting wheat and is intended for both crops; when wheat nutrient removal is higher than expected, this may limit nutrient supply for the following soybean crop. The objective of this study was to evaluate the response of soybean grown after wheat to soil-applied and foliar fertilization, including changes in tissue nutrient concentration and response in grain yield. Four sites were established in 2011 and 2012. All sites for this study were rainfed on no-till fields planted immediately after wheat harvest. Macronutrients (nitrogen, phosphorus, and potassium [N, P, K]), micronutrients (iron, manganese, and zinc [Fe, Mn, Zn]), and sulfur (S) were band-applied at planting. Foliar micronutrients were applied at flowering (R1). Tissue samples were collected prior to foliar fertilizer application at R1. Preplant and post-harvest soil samples were collected and analyzed. The tissue and soil samples were analyzed for the nutrients applied with the fertilizer treatments. During the two years of this study, severe drought limited the potential yield response and possibly nutrient uptake, and this should be considered in data interpretation. Results across site-years indicated that tissue nutrient concentration for micronutrients was a poor indicator of potential yield response. Soybean seed yield showed small response to soil-applied S, Mn, and Zn, but when micronutrients were foliar-applied, seed yield decreased significantly, likely due to some leaf damage caused by foliar fertilizer application.
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Claims 4
Claim · model-written summary
Across site-years, tissue nutrient concentration for micronutrients was a poor indicator of potential soybean yield response.
- Taxon
- soybean
Glycine maxe0 - Organ / stage
- tissuee1
- Treatment
- tissue nutrient concentration for micronutrientse1
- Outcome
- potential yield responsee1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of soybean grown after wheat to soil-applied and foliar fertilization”
e1“Results across site-years indicated that tissue nutrient concentration for micronutrients was a poor indicator of potential yield response”
Claim · model-written summary
Soybean seed yield showed a small response to soil-applied sulfur, manganese and zinc.
- Taxon
- SoybeanGlycine maxe2
- Treatment
- soil-applied S, Mn, and Zne2
- Outcome
- seed yielde2
- Qualifier
- small responsee2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Soybean seed yield showed small response to soil-applied S, Mn, and Zn”
Claim · model-written summary
Foliar-applied micronutrients significantly decreased soybean seed yield, likely through leaf damage from the foliar fertilizer.
- Taxon
- soybeanGlycine maxe0
- Treatment
- micronutrients were foliar-appliede3
- Outcome
- seed yielde3
- Direction
- decreasede3
- Qualifier
- likely due to some leaf damage caused by foliar fertilizer applicatione3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of soybean grown after wheat to soil-applied and foliar fertilization”
e3“when micronutrients were foliar-applied, seed yield decreased significantly, likely due to some leaf damage caused by foliar fertilizer application”
Claim · model-written summary
Severe drought limited the potential soybean yield response in the two study years.
- Taxon
- soybeanGlycine maxe0
- Treatment
- severe droughte4
- Outcome
- potential yield responsee4
- Direction
- limitede4
- Qualifier
- possibly nutrient uptakee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of soybean grown after wheat to soil-applied and foliar fertilization”
e4“severe drought limited the potential yield response and possibly nutrient uptake”
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