Responses of Forage Grass Ion Characteristics and Root Nutrients of the Cyperus esculentus to Different Planting Patterns at Different Growth Stages
To explore the effects of different planting patterns on forage grass ion characteristics and nutrients content in root of Cyperus esculentus,a field experiment was carried out under C.esculentus continuous cropping(CC)and C.esculentus-wheat rotation cropping(RC).The changes of ion properties,root nutrient content and soil physicochemical properties of forage were measured and analyzed at early growth stage(S1),middle growth stage(S2),and mature stage(S3).The results showed that CC/RC and different growth stages had signifiicant effects on the total phosphorus and total potassium of the root.Their interaction had significant effects on the forage grass ion characteristics(Cl-,SO42-,Ca2+,K+,Na+and Mg2+),but no significant effects on the contents of total phosphorus,total potassium,total nitrogen and crude protein in the roots.Under CC/RC mode,the total nitrogen,total phosphorus,total potassium,and crude protein of roots were decreased with three growth stages.The CC significantly increased the contents of Cl-,SO42-,K+,and Na+of the forage grass.The RC significantly reduced the content of ions(such as K+and Na+)of forage grass,and did not increase the content of nutrients in roots.Therefore,CC is beneficial to the improvement of soil salinization,which is suitable for large-scale cultivation of salinized soil in Xinjiang.
Cyperus esculentusContinuous croppingRotation croppingIon characteristics of forage grassNutrient content in roots
NETL
NSTL
万方数据
