新疆南疆石榴树平衡施肥技术试验研究

目的]南疆石榴树平衡施肥技术.方法]新疆南疆喀什地区的石榴园,进行了氮、磷、钾化肥试验,结果]在供试条件下,石榴株产与氮肥施用量的效应方程是:Y＝17.9+15.5(N)-8.6(N)~2,最佳施氮(N)量为 0.84 kg/株;石榴株产与磷肥施用量的效应方程是:Y＝19.2+17.5(P_2O_5)-12.0(P_2O_5)~2 ,最佳施磷(P_2O_5)量为 0.67 kg/株;石榴株产与钾肥施用量的效应方程是:Y＝19.23+16.07(K_2O)-10.12(K_2O)~2,最佳施钾(K_2O)量为 0.70 kg/株;石榴产量可达24.9～25.6 kg/株.结论]适量施用氮肥、磷肥和钾肥,可以提高石榴营养器官的生长量,增加石榴叶片的N、P、K营养水平,提高石榴的产量和品质.

Effect of Balanced Fertilization on Pomegranate Tree in Southern Area of Xinjiang

【Objective and Method】Application of N,P and K fertilizers were carried out in Pomegranate orchards in Kashi region of Xinjiang.【Result and Conclusion】Our results indicated that appropriate application of nitrogenous,phosphatic and potassium fertilizers can increase the growth of vegetative organs of Pomegranate and increase N,P,K nutrition levels in Pomegranate leaves and improve the yield and quality of Pomegranate.In experimental condition the function of N fertilizer effect is Y=17.9+15.5(N)-8.6(N)2 and the optimum N application is 0.84 kg/plant,the function of P fertilizer effect is Y=19.2+17.5(P2O5)-12.0(P2O5)2 and the optimum P2O5 application is 0.67 kg/plant,the function of K fertilizer effect is Y=19.23+16.07(K2O)-10.12(K2O)2 and the optimum K2O application is 0.70 kg/plant.Pomegranate production reach up to 24.9-25.6 kg/plant.