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采用盆栽试验研究了不同施用量的微晶化磷矿粉与普通磷矿粉对生菜生长的影响。研究结果表明:与普通磷矿粉相比,微晶化磷矿粉减量67%处理能改善生菜的生长指标,微晶化磷矿粉减量33%处理的肥效与普通磷矿粉处理相当;不同用量微晶化磷矿粉处理随微晶化磷矿粉施用量的增加,效果更为显著。
Pot experiments were conducted to study the effects of different rates of application of microcrystalline phosphate rock and ordinary phosphate rock on lettuce growth. The results showed that compared with ordinary phosphate rock, the treatment of microcrystalline phosphate rock reduced 67% can improve the growth index of lettuce. The effect of 33% reduction of microcrystalline phosphate rock treatment was equivalent to ordinary phosphate rock treatment ; The different amount of micro-crystallized phosphate rock powder treatment with the increase of the amount of micro-crystallized rock phosphate, the effect is more pronounced.