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我场从1965年起,学习外地经验,于小麦2～3叶期利用播种机播化肥,效果很好,能起到壮苗、促蘗、保蘗、富胎的作用.据1965年调查,条播硝铵14.6斤的,每斤硝铵增产小麦7.1斤,头水追肥的,每斤硝铵增产3.5斤,增产效果提高一倍.1967年调查,条播30斤硝铵的,比同量化肥用于头水前的,每亩增产18～50斤.具体方法是:小麦出苗后二叶期开始(每年约在四月上、中旬),用链轨拖拉机带三台播种机亩播氮素化肥15～30斤,除碳铵播不下去外,其他化肥均可播入.播种机以24行的为
My field from 1965 onwards, learning field experience, wheat 2 to 3 leaf stage using sowing machine sowing fertilizer, the effect is very good, can play strong seedling, tillering, tillering, rich tire role.According to the 1965 survey, 15.6 pounds per kilogram of ammonium nitrate, ammonium nitrate per kilogram of wheat yield 7.1 kg, topdressing fertilizer, ammonium nitrate per kilogram yield 3.5 pounds, doubling the yield effect .1967 survey, broadcast 30 pounds of ammonium nitrate than the same amount of fertilizer For the head of the water, an increase of 18 to 50 kg per mu. Specific methods are: two-leaf stage after the emergence of wheat (annual about April, mid), with a tractor with three sowing planted acres of nitrogen Fertilizer 15 to 30 pounds, except for ammonium bicarbonate does not go down, the other fertilizers can be sown. Seeder 24 to