In order to study the effects of different phosphate fertilizer rates on the yield and quality of Prunus humilis,this experiment set up different dosage of phosphate fertilizers,including conventional fertilization(CK),phosphorus reduction by 1/3,phosphorus reduction by 2/3 and no phosphorus application.The results showed that the phosphorus reduction by 1/3 treatment had the highest yield of P.humilis,reaching 14 753.17 kg/hm2,which was 3.55％higher than CK.The effectiveness and VC content of single plant of P.humilis decreased with the decrease of phosphorus fertilizer application amount,whereas tannins decreased first and then increased;and anthocyanins,total phenols,and flavonoids all present similar patterns.Agronomic efficiency and partial productivity of phosphate fertilizer application were improved by reducing phosphorus application.When phosphorus application was reduced by 1/3,the profit was the highest,reached 32 277.34 yuan/hm2,and the profit rate was as high as 36.46％.Therefore,the recommended dosage of phosphate fertilizer(P2O5)was 150 kg/hm2 under optimal yield and quality.
维普
万方数据
