Effect of Cultıvatıon Methods on Number of Plants of Wınter Wheat Varıetıes After Wınterıng in Dryland Condıtıon of Southern Mugan

Abstract

The article shows results of the study about the effect of cultivation methods on the number of winter wheat plants after wintering in dryland condition. So, in a 3 factor (2x3x3) field experiment, chickpea, winter bread and durum wheat varieties were selected as predecessors and no-fertilizers, N60P60 +10 t manure and N90P60K45 norms were used in each three cultivation variants which included: 1. Ordinary (ploughing at a depth of 20-22 cm + disking + harrowing; 2. Double disking at a depth of 10-12 cm with heavy disk harrow; 3. One disking at a depth of 10-12 cm with heavy disk harrow. Number of wintering plants and field germination (%) were found by counting in marked in 4 different points of the field for each variant. Plants were counted again after wintering, at tillering stage of plants, in the areas of the field marked in each variant and the number of plants surviving in winter was defined according to field germination. The winter hardness of the varieties, after different predecessors, soil cultivation and root nutrition according to the number of wintering plants. The number of wintering plants was higher at predecessor of chickpea; also, the results were higher by double disking of the soil with heavy disk harrow at a depth of 10-12 cm. The highest result was obtained at the background of N60P60 +10 t manure. It was found that by double disking of the soil with heavy disk harrow at a 10-12 cm depth, the winter hardness of plants was higher at both predecessors, cultivation in the background of N60P60 +10 t manure.