一、小麦需肥特点冬小麦一生需氮、钾多,需磷相对较少,同时需要钙、镁、硫等中量元素和锌、硼、锰等微量元素。一般每生产100千克小麦,需纯N3公斤,P_2O_51.0—1.5公斤,K_2O2—4公斤,N:P:K=3:1:3。二、小麦施肥的一般原则1、有机肥为主,化肥为辅。 First, the characteristics of wheat to be fat Winter wheat needs nitrogen, potassium and phosphorus is relatively small, while the need for calcium, magnesium, sulfur and other elements in the amount and zinc, boron, manganese and other trace elements. Generally produce 100 kg of wheat per year, to be pure N3 kg, P_2O_51.0-1.5 kg, K_2O2-4 kg, N: P: K = 3: 1: 3. Second, the general principles of wheat fertilization 1, organic fertilizer, supplemented by chemical fertilizers.