engleski

Soil tillage impacts on nutritional status of wheat

Winter wheat was grown under field conditions on chernozem soil for four growing seasons (from 2002 to 2005). Three treatment of soil tillage were applied as follows: a) CT- conventional tillage, b) DH-reduced tillage (diskharrowing instead of ploughing) and c) NT- no-till. In general, the characteristics of growing season (the factor "year") was more influencing factor on w. wheat nutritional status (above ground mass in stage of Feekes 10 - inflorescence emergence) than the soil tillage. In this study, very low effects of applied soil tillage treatments on nutritional status of w. wheat were found because significant differences were found only for Cd out of 23 analyzed elements. For example, conventional tillage resulted by the higher plant Cd, by 13% and 21% in comparison with DH and NT. Macronutrient status (P, K, Ca, Mg, S....) was not affected by soil tillage treatments. For this reason, usual fertilization practice is recommended for possible soil tillage reduction for w. wheat production under conditions of calcareous chernozem.

winter wheat ; moldboard ploughing ; no-tillage

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