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采用培养试验法对大田和温室土壤溶液中的众多离子含量进行比较,并且观察磷、钾肥施用量对其产生的影响,分析结果得出:温室栽培土壤溶液中K+、Na+、Mg2+及Ca2+的离子含量均比大田土壤高;土壤溶液中的离子含量因磷、钾肥的施用量不同而产生不同的影响,其中K+、NO3-含量几乎不受磷肥施用量变化的影响,而大田和温室土壤溶液中的K+、Ca2+、Na+及Mg2+的含量均会随着钾肥施用量的增加而增加。
The effects of phosphorus and potassium fertilizers on the abundance of ions in soil and greenhouse soil solutions were compared by cultivation experiment. The results showed that the ions of K +, Na +, Mg2 + and Ca2 + in greenhouse soil solution The contents of K + and NO3- in soil solution were affected by the different application rates of P and K, but K + and NO3- contents were hardly affected by the changes of P application rate. However, in field and greenhouse soil solution The content of K +, Ca2 +, Na + and Mg2 + all increased with the increase of potassium application.