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长效尿素是由普通尿素与脲酶抑制剂按一定比例混拌而成。脲酶抑制剂能抑制土壤中的脲酶活性,减缓尿素在土壤中的水解转化速度,从而延长了肥效,减少了施肥次数。此项技术从1989年开始连续5年在德州市夏玉米上进行了应用研究和推广。现将施用方法及施用效果介绍如下。 1 增产效果及原因
Long-acting urea is a mixture of ordinary urea and urease inhibitors by a certain percentage. Urease inhibitors can inhibit urease activity in the soil, slow down the hydrolysis of urea in the soil conversion rate, thus extending the fertilizer efficiency, reducing the number of fertilization. This technology has been applied research and popularization on summer maize in Dezhou for five consecutive years since 1989. Now the application method and the application of the effect described below. 1 increase production and its causes