大量元素水溶肥料在水稻上的应用效果研究

Study of Application Effects of Macro Element Water Soluble Fertilizer on Rice

研究考察了液体型大量元素水溶肥料在水稻上叶面喷施后的效果。试验研究结果表明:在水稻的苗期、孕穗和灌浆期各喷施1次,每次每亩(1 hm2=15亩)取水溶肥原液90 mL兑水45 kg(稀释比例1∶500)稀释混匀后喷施,与清水和空白对照比较,水稻株高、结实率、千粒重均增加,增产率分别为8.3%和9.4%,纯收入分别增加118.3元/亩和134.5元/亩。

The effect of liquid macro element water-soluble fertilizer spraying on rice leaf up surface is studied and investigated .Research results show that during seedling stage , milking stage booting stage , the water soluble fertilizer , prepared by adding 90 mL original water-soluble fertilizer to 45 kg water （dilution ratio is 1∶500） per mu（1 hm2 =15 mu）, diluted and mixed, is sprayed in each stage , comparing to clear water and blank treatments , rice height , seed setting rate and thousand-grain weight are all increased , the rate of growth increases by 8.3%and 9.4%respectively, and net income increases by 118.3 yuan/mu and 134.5 yuan/mu respectively.