The Effect of Plastic Film Covering and Phosphorus Fertilizer Application on the Yield and Quality of Snow Pea
To explore the effects of plastic film covering and phosphorus fertilizer application on the yield and quality of Snow pea in high-altitude areas of Qinghai.Three levels of plastic film covering have been set,including non plastic film(M0),ordinary plastic film(M1),and degradable plastic film(M2).There were total of 5 phosphorus application levels:0(P0),50(P1),100(P2),150(P3),and 200(P4)P2O5 kg/hm2.A two factor randomized block trial was conducted.The results showed that mulching with phosphor-us fertilizer significantly promoted the growth and development of Snow pea.Compared with the non mulching treatment,the dry matter accumulation increased by 12.63%to 52.64%,and the dry matter accumulation during the heading period,flowering-poding phase,and picking period was M2>M1>M0;Plant height in-creased by 7.69%to 35.29%;The M2P3 treatment had the highest yield of 1 193.15 kg/667m2,which was 18.86%and 19.78%%higher than M0P3 and M0P0,respectively.Film mulching combined with phosphorus fertil-izer promoted protein synthesis,but reduced Vc content and soluble sugar content,both showing M0>M1>M2.