Abstract: In order to investigate the effects of NPK fertilization on the yield and quality of tomato,provide theoretical basis for reasonable fertilization of N,P and K in tomato. There were five fertilization ratio treatment,no fertilizer,NPK ratio was 1:0.7:1,0.7:0.7:1,1:0.49:1 and 1:0.7:0.7,to determine the different treatments on tomato yield,quality and absorption of nutrients. The results showed that,compared with CK,N,P and K fertilization ratio treatment could increase tomato yield by 4.1%-9.9%,When the ratio of N,P and K was 1:0.7:0.7,the yield was 92.92 t/hm²,significantly higher than other treatments(P <0.05); The content of Vc,soluble sugar and soluble solids of tomato fruit in treatment 4 increased by 62.5%,16.8%,6.1%; Compared with CK,the nitrogen content in Treatment 4 was 28.71 mg/g.,14.24%-20.38% higher than other treatments,treatment 2 had higher phosphorus and potassium content,was 3.85,27.00 mg/g,significantly different from other treatments(P <0.05); Considering the yield,quality and so on,under the experimental conditions,the optimum ratio of N,P,K was 1:0.7:0.7.

Key words: Tomato, Ratio of nitrogen,Phosphorus and potassium, Yield, Quality

CLC Number: 

• S143