The effects of proportional application of cake fertilizer and chemical fertilizer on leaf nitrate, nitrite and potassium of flue-cured tobacco were investigated in a field experiment.
通过大田试验，研究了饼肥与化肥配施对烤烟硝酸盐、亚硝酸盐及钾素的影响。
The effects of increasing yield were varied with different application methods at a same nitrogen fertilizer level.
同一施氮水平不同施肥方法增产效果不同。
Effects of application amount of potassium fertilizer on plant growth, yield and marketability of Jiading Garlic were studied.
试验研究了钾肥不同施用量对嘉定白蒜植株生长、蒜头产量和商品性的影响。
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