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一、试验目的 了解小麦在花期进行根外追施磷肥的增产效果及防锈作用,供生产上的参考。 二、试验方法 1.试验地情况:前作芝麻,土质粘重,肥瘦中等,基肥每亩施堆肥(麦秆及人粪尿)3000斤,冬播南大2419小麦,生长良好,开春追施人粪尿一次,每亩8担,中耕除草冬春各一次。 2.处理项目:按每亩施过磷酸钙6斤,加水稀释成1:8及1:12两种浓度,以不喷磷肥为对照,共三种处理,喷施前将过磷酸钙加水一倍泡12小
First, the purpose of the experiment To understand the wheat in the flowering topdressing of phosphorus fertilizer yield and rust effect, for the production of reference. Second, the test method 1. Test conditions: before the sesame, soil sticky weight, fat and medium, basic fertilizer fertilizer per mu (straw and human excrement) 3000 pounds, winter training Nanda 2419 wheat, good growth, Urine once per acre 8 Tam, cultivating weeds in winter and spring once. 2. Treatment Project: Per acre applied 6 kg of calcium phosphate, diluted with water into 1: 8 and 1:12 two concentrations to non-phosphate control as a control, a total of three kinds of treatment, before spraying water plus a superphosphate Times bubble 12 small