SciELO - Scientific Electronic Library Online

vol.36 issue9Effects of different water management on the plants settlement of the pre-germinated rice seeds systemNo-tillage system of flooded rice genotypes in succession to winter cover crops author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Pesquisa Agropecuária Brasileira

Print version ISSN 0100-204XOn-line version ISSN 1678-3921


BORTOLINI, Clayton Giani; SILVA, Paulo Regis Ferreira da; ARGENTA, Gilber  and  FORSTHOFER, Everton Leonardo. Effects of nitrogen application and water availability on grain yield of corn cultivated after black oat. Pesq. agropec. bras. [online]. 2001, vol.36, n.9, pp.1101-1106. ISSN 1678-3921.

Corn grain yield is dependent on nitrogen (N) availability during plant development. The aim of this work was to evaluate the effects of N application in presowing and water availability on grain yield and on yield components of corn, cultivated in no-tillage system after black oat. The experiment was carried out in Eldorado do Sul, State of Rio Grande do Sul, Brazil, in the 1998/99 growing season. Treatments consisted of two levels of water, one being adequate to the necessity of corn plant and the other with excessive water availability and seven systems of N application: 0-30-150, 150-30-0, 75-30-75, 0-30-60, 60-30-0, 30-30-30 e 0-30-0, corresponding to the quantity of N (kg ha-1) applied in presowing (immediately after oat desiccation), at sowing and at broadcasting of corn, respectively. With total N anticipation of the broadcasting to the presowing of corn, grain yield was reduced, principally with higher water availability and higher N dose. The number of kernels per ear was the yield component more associated with corn grain yield.

Keywords : Zea mays; Avena strigosa; direct sowing.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License