摘要
在辽西褐色土上,对紫苜蓿和沙打旺施用稀土或钼、锌、锰肥,当年都可获得促进生育,增加产量的效果。在按种子重量10％的拌种条件下,对沙打旺的增产顺序是钼>锌>稀土>锰。对紫花苜蓿则是锰>锌>稀土或钼,浸种比拌种效果更佳。施后第二年,对紫花苜蓿尚有一定的后效作用,但对沙打旺则后效不明显。
Rare-earth(RE)elements or Mo, Zn and Mn applied to the brown soil in west Liaoning had significant effect on the establishment and yield of lucerne and astragalus pastures. The sequence of the effect of the minerals(mixed with seeds at sowing at the rate of 10％ of seed weight)was Mo>Zn>RE>Mn for astragalus and Mn>Zn>RE of Mo for lucerne. The effect of dipping seeds in mineral solutions was better than that of mixing. In the second year after application, the minerals sitll kept in effect for lucerne but this after-effect was not signigicant for astragalus.
出处
《草业科学》
CAS
CSCD
北大核心
1990年第2期60-64,共5页
Pratacultural Science
