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xiao mai miao ruo guan li you fang
Author(s): 
Pages: 55
Year: Issue:  24
Journal: Farm Machinery

Keyword:  管理有方小麦苗底墒不足土壤干旱麦苗生长深中耕播量护苗盖土小老苗;
Abstract: <正>小麦出苗后,由于受自然条件和栽培措施的影响,往往会形成各种不同类型的弱苗。为便于因苗、对症管理,现分别介绍如下。1土壤干旱造成的弱苗多发生于底墒不足或透风跑墒的麦田,其特点是:分蘖出生慢,叶色灰绿,心叶短小,生长缓慢或停滞(群众称之为"缩心苗"),中下部叶片逐渐变黄干枯,根少而细。管理要点:结合浇水,追施碳铵225kg/hm2。
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