不同施肥种类和水平对稻田免耕稻草全程覆盖秋马铃薯的效果

Effects of Different Fertilizer Modes and Levels on Rice Field Plow-free Throughout Straw Covered Autumn Potato

研究了不同施肥种类和施肥水平对稻田免耕稻草全程覆盖秋马铃薯的产量和效益的影响。结果表明,底施足量有机肥,生育时期明显提早、抗逆能力明显增强、产量极显著提高;在施足有机肥的基础上,底施高含量复合肥、增施钾肥、苗期追施氮肥的经济性状、商品率和效益均优于0.50∶0.20∶1.06的氮磷钾配方肥,说明稻田免耕秋马铃薯的施肥水平有别于常规栽培马铃薯的配方模式。

The effects of production and efficiency with different fertilizer types and levels on rice field plow-free throughout straw covered autumn potato was studied,the results showed that with basal dressing of organic fertilizer in sufficient quantity,growth stage would advanc distinctly,stress resistance would enhanc obviously and production would increas significantly.Based on applying appropriate organic fertilizer,with high levels of basal dressing of compound fertilizer,added potassium,and dressing nitrogen fertilizer at seedling stage,the economic traits,commodity rate and benefit were all better than that of 0.50∶0.20∶1.06 of NPK fertilizer modes.It was also indicated that the fertilizer formula of conventional cultivation was not suitable for rice field plow-free straw autumn potato cultivation.