地膜覆盖栽培提高了土壤的供肥能力,促进了甜椒对养分的吸收。在甜椒整个生育过程中,土壤养分含量前期较高,以后逐减,与植株养分吸收强度成负相关。覆膜甜椒前期需肥较少,吸肥高峰出现在采收至采收盛期,此间养分供需存在尖锐矛盾。对覆膜甜椒增施半腐熟有机肥,磷、钾化肥与有机肥混合栽前全层施入,结果至采收期分次适当多追氮素化肥,将有助子产量的提高。 Mulch mulching increased soil fertility and promoted the absorption of nutrients by sweet peppers. During the whole growth process of sweet pepper, the content of soil nutrient was higher in the early stage and then decreased, which was negatively correlated with the nutrient absorption intensity of the plant. Pre-coated peppers need less fertilizer, fertilizer peak appeared in harvest to harvest peak, there is sharp contradiction between supply and demand of nutrients. Half-matured organic fertilizer was added to the coated peppers, and phosphorus and potassium fertilizer were mixed with organic fertilizer before being applied in full layer. The results showed that proper application of multiple nitrogenous fertilizer to the harvesting period will help improve the yield of the seed.