检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:曾日秋[1] 郑芥丹[1] 洪月云[1] 卢川北[1]
机构地区:[1]福建省农科院甘蔗研究所,福建漳州363005
出 处:《草业科学》2001年第4期30-32,共3页Pratacultural Science
基 金:国家"九五"科技攻关 96-0 1 6-0 3 -0 2专题部分内容
摘 要:探讨了闽牧 4 2在不同施肥种类的表现及同一施肥种类不同施氮量对该品种的效应。结果表明 :闽牧 4 2的需肥特性要求配施适量的氮、磷、钾肥可达到高产优质及最佳经济效益 ,粗蛋白产量比单施氮肥增加 32 .1% ;不同施氮量在不同时期略有区别 ,一年 4次追肥掌握“轻、重、重、轻”的原则 。Different fertilizers applied and different application leve l of nitro gen were studied. The results showed that application of combination of nitrogen , phosphorus and potassium appeared high yield, good quality and economic benefi t. Compared to nitrogen application alone, the crude protein content increased b y 32.1%. The effects of nitrogen application performed a little difference in ev ery growing stage. The additional fertilizing principle, less-more-more-less volume fertilizer application during a growing season could bring into play the best economic effects.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.7