Effects of Microelements on the Growth and Development and Yield of Continuous Cropping Peanut

Abstract

In order to reduce the effection on the growth and development and yield of the continuous cropping peanut,microelements(Fe,Mn,Cu,Zn,Mo,B)were added to basal fertilizer,and their effects on dry matter distribution,photosynthetic characteristics,agronomic characters and yield of the continuous cropping peanut were researched.The results showed that the basal fertilizer of ZnSO4 ·7H2 O could significantly increase plant dry matter by 11.2%,and the ratio of leaf dry matter and stem dry matter in plant dry matter respectively enhanced by 7.6,2.3percentage points.Leaf area of single plant,photosynthetic rate,plant height,full fruit number and blighted fruit number per plant,pod yield were higher than the blank control by 49.3%,13.7%,30.4%, 32.7%,81.3%,17.56%.The microelements Fe,Mn,Cu,Mo,and B had no significant promotion on the growth and yield of continuous cropping peanut.Application of the fertilizer ZnSO4 ·7H2 O can significantly improve growth and yield of continuous cropping peanut.

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