Resumo

PIETROBON, M; IMVINKELRIED, H.O; DELLAFERRERA, I.M  e  MONTENEGRO, A.J. Eficiencia de uso de los recursos, productividad y producción en maíz según diferentes cultivos antecesores. FAVE. Secc. Cienc. agrar. [online]. 2016, vol.15, n.1. ISSN 1666-7719.

Efficient use of resources, productivity and corn production by different cultures ancestors. Production of dry matter and grain depends on the ability of the crops to harvest the resource. Sustainable intensification involves increased system productivity through a more intense use thereof. This work aimed to provide regional results in terms of agricultural alternative sequences on resource use efficiency and productivity and production of corn. The test was conducted during 2014 and 2015 in Esperanza (Santa Fe). Three winter crops implanted and then second maize with two levels of nitrogen fertilization. Nitrogen fertilization improved total dry matter, yield and water use efficiency; but caused a decline in nitrogen use efficiency. The lack of response of maize with respect to ancestors crops was it attributed to favorable characteristics of the year and low productivity of vetch.

Palavras-chave : Zea mays L; Nitrogen use efficiency; Water use efficiency; Yield.