论文部分内容阅读
一、合理实行倒茬轮作 农作物一般可实行禾本科与豆科作物3年以上的轮作制,尽量减少重茬和迎茬面积。根据不同作物茬口的特性,安排适宜的轮作顺序。 1.玉米对前茬要求不严格,但以豆茬为最好。玉米耐短期连作,但为了获得较高产量,必须要增加投肥量。玉米地杂草较少,是多种作物的良好前茬。 2.高梁的前茬以豆茬为最好,但不易重茬和迎茬。高梁茬口可以扣种玉米或大豆。
First, the rational implementation of crop rotation Crops can be implemented generally grasses and leguminous crops for more than 3 years rotation system, to minimize the area of stubble and stubble. According to the characteristics of different crop stubble, arrange the appropriate rotation order. 1. Corn on the stubble requirements are not strict, but the best stubble. Corn short-term continuous cropping, but in order to obtain higher yields, we must increase the amount of fertilizer. Corn weeds less, is a good variety of crops before the crop. 2. Sorghum stubble for the best before the stubble, but not easy to stubble and stubble. Sorghum stubble crop buckwheat corn or soybeans.