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shui dao shi yong tu ceng niao su shi yan yan jiu
Author(s): 
Pages: 27
Year: Issue:  2
Journal: Reclaiming and Rice Cultivation

Keyword:  涂层尿素水稻施用普通尿素大石桥市农技站氮素利用率化肥利用率增产效果推广应用投入产出比;
Abstract: 涂层尿素是一种化肥新品种,其特点是在普通尿素表面,涂一层以胶态物质和作物生长必须的微量元素为主要成份的涂层溶液经干固而成,可以大幅度提高肥效。为了大面积推广应用涂层尿素,需摸清涂层尿素的氮素利用率,投入产出比等情况。为此,1997年按省土肥总站下达的实施方案进行了试验、示范,现将结果总结如下:1材料与方法1.1试材涂层尿素:河北仓洲化肥厂产;普通尿素:辽河化肥厂产。1.2处理在亩施过磷酸钙42kg·氯化钾(KCI含导60%)11.6kg的基础上做如下处理:A、不施氮肥;B、追施涂层尿素1.15kg/24m’;C、基施涂层尿素1.15kg/24rn’;D、追施普通尿素互·15kg/24n。’。试
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