短期夏闲地填闲种草效益的探讨

DISCUSSION ON THE BENEFIT OF FALLOW FORAGE CROPS IN SHORT TERM SUMMER FALLOW FIELDS

土地资源紧缺已成为人口密集地区的严峻问题,因而要发展较大面积专用草地是不现实的,这个问题在渭北旱原小麦主产区普遍存在.小麦播种面积占耕地面积40％～60％,麦收后大多短期休闲后复种小麦,这段时间有较好的光、热、水条件,如能利用部分夏闲地填闲种草,则可解决或缓解牲畜青绿饲料缺乏问题。

The deficiency of land resources has become a severe problem in our densely populated area. So it is impossible to establish grassland in a largescale. This problem exists commonly in the arid terraces north to the Wei River where the wheat crop dominates. The wheat lands there always account for 40—60 percent of seeded fields. In that area, after wheat harvest there is still a better condition of sunshine,heat and moisture in the most part of wheat lands. At that time,to seed the fallow fields with forage crops may solve the problem of lack green feed for livestock.