Study of Peanut Balanced Fertilization Technique in Hubei Province V.Rules of Nutrient Accumulation and Distribution

The rules of nutrient accumulation and distribution of peanut(Arachis hypogaea) were studied.The results indicated that the dry matter yield and nutrient accumulation increased with the growth of peanut plant and arrived to the maximum in harvest stage;But the accumulation of Ca and Mg reached the peak in pod enlargement time.When every 100 kg pod of peanut were produced,the uptake amount of N,P,K,Ca,Mg,Fe,Cu,Zn and B were 3.63,0.47,1.45,0.90,1.00,1.38,0.02,0.26 and 0.05 kg.The flower and needle stage was the main period of nutrient accumulation.After resettling stage,the nutrient transferred from leaf and stem to pod,and the variation in root was small.