EFFECT OF STRAW INCORPORATION BY TILLAGE IMPLEMENTS COMBINATION ON PHYSICOCHEMICAL PROPERTIES OF SOIL AND MAIZE PRODUCTIVITY IN FIELD CONDITION

摘要

The dryland region of the loss of stability is subject to developing strategies for sustainable crop production by the variation of field executive affecting soil properties and crop production. In this study, a field experiment was carried out and the effect of straw incorporation rates by different tillage implement combinations (T1= Reduced tillage at 10 cm + wheat straw incorporation rate 02 t.ha-1, T2 = Conventional tillage at depth 10 cm + straw incorporation rate 02 t.ha-1, T3 = Reduced tillage at depth 20 cm + wheat straw incorporation rate 04 t.ha-1 and T4= Conventional tillage at depth 20 + wheat straw rate 04 t.ha-1) were evaluate the pre and post harvesting physic-chemical properties, plant traits and maize yield. The results revealed that the EC and pH of soil significant decreased significantly (P<0.05) towards all treatments after the harvesting crop at depths 0-45 cm. Moreover, average organic matter and bulk density were highest improved significant towards T3 and T4 at depth 0-15 cm, while lowest at 15-30 and 30-45 cm respectively. Plant height, thousand grains weight, and crop yield was increased significantly in T3 treatment as compared to T1, T2, and T4 treatments. It is concluded that (T3) Reduced tillage at depth 20 cm + wheat straw incorporation rate 04 t.ha-1 to soil for the sustainability of the soil fertility, physico-chemical properties plant traits and maize yield under the combinations of tillage practices.