摘要
本文用不同施用量的磷肥对紫花苜蓿进行了试验研究,结果表明,磷肥对苜蓿有显著的增产效果。用LSR 法统汁分析,最佳处理为80kg/亩;经回归分析建立了苜蓿产草量与施肥量的关系式:Y=2576.1812+10.5395X-0.0581X^2,最高产量施肥量为90.7kg/亩,最佳经济效益施肥量为71.9kg/亩。
Different amounts of phosphate fertilizer were used in alfalfa.The result showed that phosphate fertiliz- er has obvious effect on increasing alfalfa output.The LSR statistical analysis showed that the best treat- ment is 80kg per mu.By regressive analysis,we made the relation formula between the output of alfalfa and the amounts of applying fertilizer.It is Y=2576.1812+10.5395X-0.0581X^2.The applying amounts for highest output is 90.7kg per mu.The best economical applying amounts is 71.9kg per mu.
出处
《草业科学》
CAS
CSCD
北大核心
1993年第1期41-43,共3页
Pratacultural Science
关键词
紫花苜蓿
磷肥
施肥
Alfalfa
phosphate fertilizer
increasing productive effect
economical profit
