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

Cover crops, nitrogen doses, and inoculation with Azospirillum brasilense, in maize in the Cerrado

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Author(s):
José Roberto Portugal [1] ; Orivaldo Arf [2] ; Amanda Ribeiro Peres [3] ; Douglas de Castilho Gitti [4] ; Nayara Fernanda Siviero Garcia [5]
Total Authors: 5
Affiliation:
[1] Universidade Estadual Paulista "Júlio de Mesquita Filho". Departamento de Agricultura - Brasil
[2] Universidade Estadual Paulista "Júlio de Mesquita Filho". Departamento de Agricultura - Brasil
[3] Universidade Estadual Paulista "Júlio de Mesquita Filho". Departamento de Agricultura - Brasil
[4] Universidade Estadual Paulista "Júlio de Mesquita Filho". Departamento de Agricultura - Brasil
[5] Universidade Estadual Paulista "Júlio de Mesquita Filho". Departamento de Agricultura - Brasil
Total Affiliations: 5
Document type: Journal article
Source: Rev. Ciênc. Agron.; v. 48, n. 4, p. 639-649, 2017-10-00.
Abstract

ABSTRACT With the aim of increasing productivity, and minimising costs and environmental impact, sustainable management techniques are necessary when growing maize. The aim of this study was to evaluate different cover crops (millet, crotalaria, pigeon pea, millet + crotalaria, millet + pigeon pea and fallow) and doses of N (0, 40, 80 and 120 kg ha-1), both with and without seed inoculation with Azospirillum brasilense of the maize crop, in the Cerrado region of Brazil. The experimental design was of randomised blocks, in a 6 x 4 x 2 factorial scheme, comprising 48 treatments with 4 replications. The study was carried out in the town of Selvíria, in the State of Mato Grosso do Sul. Plant cover, except for the pigeon pea in the first year and the fallow in the second year, produced enough residue (6 t ha-1) to maintain the no-tillage system in the Cerrado region, especially the treatment with millet + crotalaria. Maize production in succession to the pigeon pea and the millet + crotalaria was higher. In an area with a stabilised no-tillage system, the supply of nitrogen using fertiliser, gives an increase in productivity up to a dose of 114 kg N ha-1. Inoculating the seeds with Azospirillum brasilense gave a smaller final plant population, less plant height and lower 100-grain weight. (AU)

FAPESP's process: 12/22501-9 - Hedging plants and nitrogen doses associated with inoculation with Azospirillum brasilense in maize cultivation in the cerrado region
Grantee:José Roberto Portugal
Support Opportunities: Scholarships in Brazil - Master