THE INFLUENCE OF CROP ROTATION AND NUTRITION REGIME ON THE GROWTH PROGRESS OF BIOMASS AND PRODUCTION IN WINTER WHEAT

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THE INFLUENCE OF CROP ROTATION AND NUTRITION REGIME ON THE GROWTH PROGRESS OF BIOMASS AND PRODUCTION IN WINTER WHEAT

Journal Title: Natural Resources and Sustainable Development - Year 2013, Vol 3, Issue 1

Abstract

The paper is based on the research carried out during 2010-2012 in a long term trial placed in 1981 on the luvosoil from Agricultural Research and Development Station Oradea. The crop rotation and nutrition regime influence on the biomass and yield were studied in the following device: factor A- crop rotation (a1= winter wheat, monocrop; a2= winter wheat-maize; a3= peawinter wheat-maize a4= pea-winter wheat-maize-maize) factor B- nutrition regime (b1= N0P0; b2= N120P80; b3= N120P80+manure 10 t/ha (applied for every crop). The biggest quantity of total biomass was determined in the crop rotation pea-winter wheat-maize-maize and the smallest quantity was registered in the winter wheat monocrop in all stages of the vegetation period. The difference between these variants were of 128% at the beginning of the vegetation, of 39% at the first internod formation, of 22% at straw elongation, of 25% at spike formation, of 26% at the beginning of the seed formation, of 21% at early ripening, of 23% at incomplete ripening and of 29% at complete ripening; the nutrition regime had a great influence, too, on the total dry biomass. The highest values were registered in the variant fertilized with N120P80+manure 10 t/ha and the smallest in the variant N0P0. Between these variants, the following differences were determined: of 64% at the beginning of the vegetation, of 48% at the formation of the first internod, of 53% at straw elongation; at 38% at the formation of spike; of 32% at the beginning of seeds formation, of 39% at early ripening, of 41% at incomplete ripening and of 24% at complete ripening; in the total biomass, the grain mass represented 35%-43%, strain mass 22%-42%, chaff mass 4%-14%, foliar mass 5%-10% and root mass represented 4-9%; the crop rotation influenced the yield level. The smallest yield was obtained in winter wheat monocrop, 2920 kg/ha. In the other variants, the yields obtained were bigger; the differences were of 21% in winter wheat-maize, of 56% in pea-winter wheat-maize and of 57% in pea-winter wheat-maize-maize; the nutrition regime influenced very much (2610 kg/ha) the yield level, in comparison with the variant N0P0, the winter wheat yield obtained in the variant with N120P80 increased with 69% and in the variant N120P80+manure 10 t/ha with 80%.

Authors and Affiliations

Ileana Ardelean, Gheorghe Bandici

Keywords

EP ID EP272162
DOI -
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