马铃薯稻田免耕全程覆盖栽培氮、磷、钾肥效试验  

Effects of N, P and K Fertilizer on Potato Planted in Paddy Field Covered with Rice Straw

作　　者：胡腾胜 陈跃 徐健 

机构地区：[1]黔东南州农业局土肥站,贵州凯里556000 [2]黔东南州农业局农推站,贵州凯里556000 [3]贵州省麻江县景阳乡农牧站,麻江557601

出　　处：《贵州农业科学》2005年第4期36-38,共3页Guizhou Agricultural Sciences

摘　　要：采用氮、磷、钾3因素4水平肥料试验,探索氮、磷、钾不同配比对稻田全程覆盖免耕栽培马铃薯经济性状及产量的影响。结果表明:在该地区同等肥力和种植条件下,其最佳经济效益施肥量为氮肥(N)7.85 kg/667m2,磷肥(P2O5)8.63 kg/667m2,钾肥(K2O)11.52 kg/667m2,其产量为1 824.5 kg/667m2。The different combinations of N, P and K fertilizer were experimented to investigate the economic character and yield of potato planted in paddy field covered with rice straw during the whole growth period. The results show that the maximum yield（27. 3675 t/ha） can be obtained by applying the fertilizer combination including 117.75kg/ha of N, 129.45kg/ha of P2O5and 172.8kg/ha of K2O under the same fertility and cultivation condition.

关 键 词：马铃薯 免耕 全程覆盖 肥效 产量 

分 类 号：S532.048[农业科学—作物学] S532.062