Effects of Tillage Regime and Nitrogen Application Rate on Post-Anthesis Dry Matter Remobilization,Sugar Content and Grain Yield of Winter Wheat in Dryland
In order to explore the interaction effect of tillage and nitrogen fertilizer on dry land wheat,a two-factor split plot design was adopted in Gansu semi-arid rain-fed agricultural region.Four tillage modes,including conventional tillage(CT),straw returning(CTI),full-film mulching with soil(PM)and no-tillage straw mulching(NTS),were used as the main tillage modes,with nitrogen application amount of 75,150,225 and 300kg·hm~(-2)(designated as N1-N4)as the sub-tillage modes.The differences of dry matter transpo...