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本文根据各站长期定位试验,研究了磷、钾平衡和土壤有效磷、钾水平消长的关系,并求得回归方程,发现土壤有效磷、钾水平消长与养分平衡一般都有显著相关。
According to the long-term experiment of each station, the relationship between phosphorus and potassium balance and soil available phosphorus and potassium levels was studied. The regression equation was obtained. The results showed that there was a significant correlation between soil available phosphorus and potassium levels and nutrient balance.