Total potassium content of all varieties increased from Jul to Dec.
而全钾含量在整个测定期间呈持续升高趋势；
Soil total potassium content, soil available phosphorus, soil total potassium content and soil available potassium, Their variation is not obvious.
而土壤全磷、土壤全钾、土壤有效磷、土壤有效钾随着土壤深度的增加，其变化规律不明显。
Organo mineral compound fertilizers are digested with sulfuric acid hydrogen peroxide and nitric acid perchloric acid respectively and then their total potassium content is determined.
用硫酸—过氧化氢和硝酸—高氯酸分别对有机—无机复混肥料进行消化处理，然后进行总钾含量的测定。
应用推荐