Study on the Relationship Between Yield and Potassium Nutrition of Jasmine
[Objective]To provide scientific basis for potassium nutrition management.[Method]Through investigation,sampling,testing and statistical analysis,the relationship between the yield and potassium nutrition of Jasmine in Hengzhou was studied.[Result]①The range of total potassium content and available potassium content in high yield plots were 4.5-12.5 g/kg and 20-280 mg/kg,respectively,which were two necessary and insufficient conditions.②The contents of total potassium and available potassium in soil were significantly and positively correlated with the contents of other soil nutrients,indicating that the nutrient contents in the soil fertility of Jasmine had a consistent trend.③The content of soil available potassium was positively correlated with the content of root potassium,flower potassium,root iron,root boron and branch manganese,indicating that soil available potassium was one of the key fertility indexes.④The content of total potassium in soil was negatively correlated with the content of other nutrients in root,branch,leaf and flower of Jasmine,indicating that the high content of total potassium hinders the absorption of other elements.[Conclusion]The content of available potassium and the content of total potassium were the key fertility indexes of Jasmine flower.
NETL
NSTL
万方数据
