The study on the effect of potash fertilizer on potato yield was carried out through field experiment and comparing trial.
通过小区试验和大田对比试验，对马铃薯施钾的肥效效应进行了研究。
The study on the effect of potash fertilizer on potato yield was carried out through field experiment and comparing trial.
通过小区试验和大田对比试验，对马铃薯施钾的肥效效应进行了研究。
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