Abstract
Succession crops in no-tillage system can improve the soil attributes, thus favoring the growth and development of maize (Zea mays L.) and contributing to grain yield increment. The objective of this work was to verify the effect of succession crops on growth and development of maize planted in the summer and the influence on grain yield. For the study, a long-term experiment was implemented, beginning in September 2009, in dystroferric Red Latosol, on the Experimental Farm of the School of Agricultural Sciences of the Federal University of Grande Dourados (UFGD), located in the municipality of Dourados, Mato Grosso do Sul state. This article presents data collected from the 2017/2018 crop season. Randomized block design was used, with ten treatments and four replications. The treatments consisted of the crops preceding maize, such as millet (Pennisetum glaucum L.), oilseed rape (Brassica napus), oat (Avena sativa), safflower (Carthamus tinctorious), niger (Guizothia abyssinica), vetch (Vicia sativa), sunn hemp (Crotalaria juncea), and forage radish (Raphanus sativus). The predecessor crops positively influence dry matter mass of the aerial part of the plant, dry matter mass of 1000 grains, and productivity of the summer maize crop planted through the remains of straw (residues) of millet, oat, niger, sunn hemp, vetch and forage radish.
Highlights
Resumo - As culturas de sucessão no sistema de plantio direto podem melhorar os atributos do solo, favorecendo o crescimento e desenvolvimento da cultura do milho (Zea mays L.) e contribuindo para o aumento da produtividade dos grãos
Crop rotation contributes to improvement and maintenance of soil fertility; lower incidence of pests, diseases and weeds in the crop; greater crop diversification in the property; mitigation of failure risks associated with the agricultural activity; and maintenance and enhancement of crop productivity (FIDELIS et al, 2003)
The results presented in this work refer to maize sown in the first crop season of the 2017/2018 agricultural year, in succession to oilseed rape (Brassica napus), safflower (Carthamus tinctorious), niger (Guizothia abyssinica), black oat (Avena strigosa Schreb), sunn hemp (Crotalaria juncea), vetch (Vicia sativa) and forage radish (Raphanus sativus)
Summary
Resumo - As culturas de sucessão no sistema de plantio direto podem melhorar os atributos do solo, favorecendo o crescimento e desenvolvimento da cultura do milho (Zea mays L.) e contribuindo para o aumento da produtividade dos grãos. As culturas antecessoras influenciam positivamente na massa da matéria seca da parte aérea da planta, na massa da matéria seca de 1.000 grãos e na produtividade da cultura do milho de verão semeado sobre a palhada remanescente de milheto, aveia, níger, Crotalária juncea, ervilhaca e nabo forrageiro. No-tillage system (NTS) is defined as the conservation management practice that involves all recommended techniques to increase productivity, while continuously preserving or enhancing the environment It is based on minimal soil disturbance, permanent ground cover, and crop rotation (HECKLER & SALTON, 2002). There are evidences of the potential of using crops such as oilseed rape, forage radish, safflower, crambe and niger for biodiesel production and as green manure The use of those plants in the crop rotation system could significantly improve the yield of maize and soybean crops in traditionally producing regions
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