摘要
研究多功能保水剂对苜蓿产量的影响。以东营为实验点,于2007年采用四种不同施用量对比,找出最佳用量,2008年进行推广试验。保水剂不同施用量都能提高苜蓿产量,随着施用量的增加,提高程度也加大,但从最大经济效益来讲,以45kg/hm2为最佳施用量;施用多功能保水剂还能增加苜蓿体内干物质的积累。施用保水剂能提高苜蓿产量,降低含水量,增加干物质的积累。
This paper studied the effects of applying multi-functional water retaining agent on the yield of alfalfa at Dongying. We used four different fertilizers for contrasting in 2007 to find the best dosage and will continue to extend the trial in 2008. The yields of alfalfa increase when different amount of water retaining agents are applied. The increasing rate of the yield increases with the increasing of the application rate. However, the best amount is 45 kg/hm2 from the point of the largest economic benefits. The application of multi-functional water retaining agent can increase the dry matter accumulation of alfalfa. Application of multi-functional water retaining agent can increase alfalfa yields, lower water content, increase the dry matter accumulation.
出处
《中国农学通报》
CSCD
北大核心
2010年第18期210-212,共3页
Chinese Agricultural Science Bulletin
基金
国家科技支撑项目课题"黄河三角洲地区多功能保水剂试验基地建设与应用研究"(2006067-4)
关键词
多功能保水剂
产量
含水量
干物质
multi-functional water retaining agent
yield
water content
dry matter material
