采用田间小区试验研究了施锌对黑玉米锌素营养的影响。
The effect of Zn application on Zn nutrition of black corn was studied in a field plot experiment.
通过田间小区试验对水稻专用配方肥最佳含氮量进行了研究。
Through field plot experiment to research the optimum nitrogen content of rice proprietary formula fertilizer.
通过马铃薯田间小区试验，研究新型专用配方肥对马铃薯产量和品质的影响。
A field experiment was conducted to study the effect of new potato specific fertilizer on the yield and quality of potato.
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