生姜氮磷钾平衡施肥技术研究  

Effect of Balanced Fertilization of Nitrogen,Phosphorus and Potassium on Ginger

作　　者：李录久[1] 胡永年[2] 徐志斌 苗春雷 肖凤体 杨哲峰[4] 

机构地区：[1]安徽省农业科学院土壤肥料研究所,合肥230031 [2]安徽省农业科学院作物研究所 [3]阜南县科学技术委员会 [4]阜南县农业局

出　　处：《安徽农业科学》2002年第6期863-864,共2页Journal of Anhui Agricultural Sciences

基　　金：安徽省科委"九.五"科技攻关资助项目部分内容

摘　　要：氮磷钾平衡施肥对生姜产量的影响试验研究结果表明 :增施钾肥对生姜的生长发育有明显的促进作用 ,能显著增加生姜的产量 ,姜块的增产幅度为 11.7%～ 3 1.8%。钾肥 (K2 O)用量超过 45 0kg/hm2 时 ,生姜产量呈下降趋势。施用钾肥能大幅度增加生姜产值 ,施钾产投比达 3 .99～ 13 .46。磷肥 (P2 O5)施用量超过 90kg/hm2 时 ,生姜产量增加不明显。当前生产条件下 ,磷肥 (P2 O5)的适宜施用量为 90kg/hm2 左右。Effect of balanced fertilization of nitrogen,phosphorus and potassium on ginger yield was conducted.The results showed that potassium application could obviously promote ginger growth and remarkably raise ginger yield.The yield of ginger tuber increased 11.7%～ 31.8% .Ginger yield inclined to drop when applied with more than 450?kg(K 2O)/hm 2.The application of potassium fertilizer could increase the productive value of ginger planting in a big margin and the ratio of output/input reached to 3.99～13.5.There was not obvious ginger yield increase as the application of phosphate fertilizer exceeded 90?kg(P 2O 5)/hm 2.Under the condition of present production,the suitable application of phosphorus (P 2O 5) was about 90?kg/hm 2.

关 键 词：生姜 氮 磷 钾 平衡施肥技术 

分 类 号：S632.5[农业科学—蔬菜学]