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涂层尿素是一种化肥新品种,它是在普通尿素表面喷涂一层以胶态物质和作物生长必需的微量元素为主要成分的涂层溶液,经干固而成。这种尿素分解释放缓慢,延长肥效,可提高肥料利用率。为搞好涂层尿素的推广,我们在小面积试验的基础上,搞了2400亩大面积示范,效果显著。 一、示范基本情况 示范田块选在棕壤土上,示范田间设对照区。示范田块和对照区底肥投入的磷、钾肥量相同,示范田
Coated urea is a new fertilizer, which is sprayed on the surface of ordinary urea with colloidal substances and crop growth essential trace elements as the main component of the coating solution, the dry solid formed. This slow release of urea decomposition, to extend fertilizer efficiency, can improve fertilizer utilization. In order to improve the promotion of coated urea, we conducted a large-scale demonstration of 2,400 mu on the basis of a small area test, and the effect was remarkable. First, the demonstration of the basic situation Demonstration plots selected brown earth, demonstration field set control area. Demonstration plots and control area at the end of the input fertilizer phosphorus, potassium fertilizer the same demonstration field