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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Soybean yield and nutrition after tropical forage grasses

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Author(s):
Costa, Nidia Raquel [1] ; Andreotti, Marcelo [2] ; Crusciol, Carlos Alexandre Costa [1] ; Pariz, Cristiano Magalhaes [3] ; Bossolani, Joao William [1] ; Pascoaloto, Isabo Melina [1] ; da Rocha Lima, Cesar Gustavo [4] ; dos Santos Batista Bonini, Carolina [5] ; de Castilhos, Andre Michel [3] ; Calonego, Juliano Carlos [1]
Total Authors: 10
Affiliation:
[1] UNESP, Dept Crop Sci, Coll Agr Sci, Botucatu, SP - Brazil
[2] UNESP, Coll Engn, Dept Soil Sci, Ilha Solteira, SP - Brazil
[3] UNESP, Dept Anim Nutr & Breeding, Sch Vet Med & Anim Sci, Botucatu, SP - Brazil
[4] UNESP, Coll Engn, Dept Civil Engn, Ilha Solteira, SP - Brazil
[5] UNESP, Coll Agron & Technol Sci, Dracena, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: NUTRIENT CYCLING IN AGROECOSYSTEMS; v. 121, n. 1 JUL 2021.
Web of Science Citations: 0
Abstract

In tropical agroecosystems, intercropping crops and including perennial forages can increase crop system diversity and sustainability. However, adequate management of cash crops in crop rotation under no-till requires an understanding of the release of nutrients by surface mulch. This study evaluated the effects of two sowing times and nitrogen (N) management of palisade grass {[}Urochloa brizantha (A. Rich.) Stapf Marandu] and guinea grass {[}Megathyrsus maximus (Jacq.) B.K. Simon \& S.W.L. Jacobs Tanzania] on forage production, nutrient accumulation, and decomposition rates; soybean {[}Glycine max (L.) Merrill] yield; and soil chemical properties over three growing seasons. Palisade and guinea grasses were sown for intercropping with sorghum {[}Sorghum bicolor (L.) Moench] in the growing season or after sorghum silage harvest (hereafter succession) and subjected to N fertilization management (urea - 0 and 70 kg N ha(-1) cut(-1), totalling 210 kg N ha(-1) per season) during the off-season. Nitrogen fertilization increased nutrient accumulation in surface mulch in all cropping systems. Regardless of cropping system, N rates, or growing season, palisade and guinea grass provided an adequate plant biomass production, soil cover throughout the year, soybean nutrient use efficiency, and soil quality. Soybean was positively influenced by N fertilization of grasses sown in succession to sorghum. Guinea grass had the greatest effect on soybean grain yield, with an improvement of 0.8 Mg ha(-1). Sowing grasses in succession to sorghum positively affected soil pH, Ca, Mg, and base saturation. (AU)

FAPESP's process: 11/01057-0 - TECHNICAL AND ECONOMIC PERFORMANCE OF PRODUCTION SYSTEMS IN CROP-LIVESTOCK SYSTEM AIMING FOR SUSTAINABILITY IN THE NO-TILLAGE
Grantee:Nídia Raquel Costa
Support Opportunities: Scholarships in Brazil - Doctorate