MIXTURES OF PHOSPHORUS SOURCES OF DIFFERENT SOLUBILITIES AND THE EFFICIENCY OF USE BY CORN IN INTERCROPPING WITH COVER CROPS

DOI: https://doi.org/10.36725/agries.v8i2.7913
Keywords: Phosphate, Crotalaria juncea, Cajanus cajan

Abstract

Tropical soils have chemical characteristics that promote a fixation of the P element, making the phosphate fertilizers in these soils have low efficiency. The present work aimed to evaluate the efficiency of phosphate fertilization in the corn crop in different crop systems, different sources of P and mixture between these sources. It was adopted a completely randomized design with subdivided plots. The plots were formed by three treatments (system cultivation of corn): single corn, corn intercropped with Crotalaria juncea, and corn intercropped pigeon pea (Cajanus cajan). The subplots formed by five treatments, created by two P sources and three mixtures between them. The consortium with pigeon pea and crotalaria species reduced productivity regardless of the source or mix of sources used. In consortium cultivation, greater use is made of the applied fertilizer, which means that consortium cultivation can be a tool for improving levels of P use in Brazilian agriculture.

Author Biography

Leonardo Santos Collier, Universidade Federal de Goiás

Graduado em Engenharia Agronômica pela Universidade Federal de Viçosa (1988), mestrado em Agronomia (Ciências do Solo) pela Universidade Federal Rural do Rio de Janeiro (1992) e doutorado em Produção Vegetal pela Universidade Estadual do Norte Fluminense Darcy Ribeiro (1999). Atuou como extensionista rural na EMATER-Paraná de 1991 a 1993. Atualmente é professor associado IV da Universidade Federal de Goiás. Participou do projeto RECUPERAMAZ de 2006 a 2008 - cooperação USAid e Ministério da Agricultura e Ciência e Tecnologia. Participou de projetos de pesquisa e extensão envolvendo agricultura familiar e sistemas de plantio direto na região de transição Cerrado -Amazônia. Participa ativamente de atividades de ensino nos cursos de Agronomia, Engenharia Florestal e Zootecnia. Desenvolve projeto de mais de 10 anos de duração com sistemas Agroflorestais na UFG e em áreas agrícolas. Atuou profissionalmente em quatro das cinco grandes regiões do país tem experiência na área de Agronomia, com ênfase em Fertilidade do Solo e Adubação, principalmente nos seguintes temas: manejo da fertilidade do solo, plantio direto, adubação verde, consórcio e plantas de cobertura. A partir de 2021 se encontra em Portugal na elaboração de projetos na área de Agricultura sustentável e modelos agroflorestais.

Published
2022-12-20
How to Cite
Benício, L. P., & Santos Collier, L. (2022). MIXTURES OF PHOSPHORUS SOURCES OF DIFFERENT SOLUBILITIES AND THE EFFICIENCY OF USE BY CORN IN INTERCROPPING WITH COVER CROPS. AGRI-ENVIRONMENTAL SCIENCES, 8(2), 10. https://doi.org/10.36725/agries.v8i2.7913
Issue
Vol 8 No 2 (2022): Special Edition: Sustainability of the use of phosphorus in Brazilian agriculture
Section
Scientific paper

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