INFLUENCE OF THE CROP ROTATION AND IRRIGATION ON YIELD, WATER CONSUMPTION AND WATER USE EFFICIENCY IN MAIZE FROM CRIȘURILOR PLAIN
Journal Title: Natural Resources and Sustainable Development - Year 2016, Vol 6, Issue 1
Abstract
The paper is based on the research carried out during 2014-2015 on the preluvosoil from Agricultural Research and Development Station Oradea. The years of experiment were very different climatical conditions point of view. In terms of 2014, the lowest yields were obtained in monoculture, yield gain due to application of irrigation were 41% in wheat-corn crop rotation and 85% at wheat-corn-soybeans crop rotation. The lower yields were obtained in monoculture. Differences in monoculture are smaller in rotation wheat-maize and higher in rotation wheat -maize-soybean. Both under irrigation and unirrigation conditions, initial water supply determined at the depth of 0-150 cm had a higher value in crop rotation wheat-maize-soybean-wheat in comparison with wheat-maize rotation and monoculture. The small amount of maize kernels obtained from 1 m3 of water used was obtained in monoculture. In wheat-maize crop rotation and especially wheat-maize-soybean crop rotation the water used efficiency values are higher than in monoculture. Compared with monoculture in wheat-maize crop rotation irrigation water use efficiency by maize increased with 45% in 2014 and 47% in 2015; in crop rotation wheat-maize-soybean differences registered compared with monoculture were 94% in 2014 and 92% in 2015.
Authors and Affiliations
Florin Ionici, Radu Brejea
Keywords
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