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[目的]为了研究氮磷不同施肥时期和不同施用比例对马铃薯经济性状及产量的影响。[方法]以马铃薯品种威芋3号为材料,根据马钤薯生育规律,氮、钾作基肥、齐苗肥、现蕾肥不同比例配施,设置8个处理,随机区组排列。[结果]氮肥按基肥、齐苗肥各占40%,现蕾期占20%,钾肥按基肥占60%,齐苗肥和现蕾肥各占20%的效果最佳,马铃薯经济性状表现良好,单产可达39 186.0 kg/hm2,其次是氮肥按基肥占80%,齐苗肥、现蕾肥各占10%,钾肥按基肥占80%,现蕾肥占20%,马铃薯经济性状良好,单产可达35 434.5kg/hm2。[结论]该研究可为大田生产提供科学合理的理论依据。
[Objective] The research aimed to study the effects of different fertilizing periods and different application rates of nitrogen and phosphorus on economic traits and yield of potato. [Method] With potato variety Wei-tar No.3 as material, according to the law of reproductive growth of Potato, Potato, Qi-Miao and Lei-Lei were treated with different proportions of nitrogen and potassium. Eight treatments were set up in randomized block arrangement. [Result] Nitrogen fertilizer accounted for 40% of basal fertilizer, Qi Miao fertilizer, 20% of budding period, 60% of potassium fertilizer based on basal fertilizer, 20% of Qi Miao fertilizer and budding fertilizer, respectively. The economic performance of potato was good , Yield of up to 39 186.0 kg / hm2, followed by nitrogen fertilizer accounted for 80% of the base, Qi Miao, buds accounted for 10% of each, potassium base fertilizer accounted for 80%, accounting for 20% of the bud, potato economic traits, Yield up to 35 434.5kg / hm2. [Conclusion] This study can provide a scientific and reasonable theoretical basis for field production.