Effects of P fertilizer application on the plant growth and nutrient uptake of N,P and K in different maize cultivars

On the higher and lower available P soils,treatments of P fertilizer application were designed in the field condition.Effects of P fertilizer application on the plant biomass,yield,nutrient uptake of N,P and K in nine maize cultivars,and their differences were studied.This provided the scientific basis for P fertilizer reasonable application.The results showed that on the higher available P soil,P fertilizer application hardly influenced the maize biomass,yield and its constitute,and nutrient uptake of N,P and K.On the lower available P soil,without P fertilizer application decreased maize biomass,seed number per ear,yield,and uptake of N,P and K.Because of the higher nutrient uptake,liyu16 had higher biomass and yield under the condition of two P levels.Nine maize cultivars had significant difference.Therefore,according to soil available P content,reasonable P fertilizer application should be suggested in the maize produce.