稻田免耕马铃薯平衡施肥试验  

A Balanced Fertilization Experiment on Potato in Non-tillage Rice Fields

作　　者：范贵国 陈应昂 王德明 

机构地区：[1]贵州省习水县土肥站,习水564600 [2]贵州省习水县习酒镇农技站,习水564622

出　　处：《贵州农业科学》2005年第2期51-52,共2页Guizhou Agricultural Sciences

摘　　要：采取“3414”试验设计,对稻田免耕马铃薯进行了平衡施肥研究。结果表明:缺素及N、P、K肥的不同用量配比对其产量有较大影响。其中以施氮肥6 kg/667m2、磷肥20 kg/667m2、钾肥11 kg/667m2的用量配比,马铃薯产量最高,薯块商品性最好,可以较低的投入获得较高的产出,投产比为1∶4.54。The balanced fertilization experiment on potato in Non-tillage rice fields was done with 3414 design. The result show that treatments including element deficient and different applying amount of N,P, and K fertilizer affected the potato productivity. The (highest) yield with best commercial quality achieved at the combining ratio of fertilizer as N (6 kg/667m^(2))∶P_(2)O_(5) (20 kg/667m^(2))∶(K_(2)O) (11 kg/667m^(2)), and getting an input/output ratio as 1∶4.54.

关 键 词：稻田免耕 施肥试验 马铃薯产量 试验设计 平衡施肥 施氮肥 商品性 配比 用量 缺素 K肥 薯块 

分 类 号：S532[农业科学—作物学] S888.5