摘要
地力是影响苜蓿产量的首要因子,施用化肥,特别是氮磷配合,有显著的增产效果;适期早播亦有一定的增产效果,苜蓿的播量以1.0—1.5公斤/亩为宜;苜蓿与小麦混播是可行的,小麦播量不宜超过5公斤/亩,实施冬、春锄耙等田间管理措施,是改变苜蓿低产状况的一个重要手段。另外,对土壤含水量的测定表明,苜蓿对水分耗用量大,第4—5年土壤水分明显亏缺。
Soil fertility is the main factor which affects alfalfa yield. Applying fertilizer, especially the compound fertilizer of N and p, has an apparently good result to raise the yield, so does the early-sowing in good time with seed rate of 1.0—1.5 Kg/mu. It is practicible to intercrop alfalfa with wheat with the seed of 5Kg/mu at most. It is another important way to change the alfalfa condition of the low yield with the field management measures of hoeing and raking in winter and spring. In addition, the determination of the moisture content in soil shows that alfalfa consums a large amount of water. And the moisture in soil is apparently deficient in the 4th-5th years.
出处
《干旱地区农业研究》
CSCD
北大核心
1989年第4期18-24,共7页
Agricultural Research in the Arid Areas
