冀西北高原食用南瓜平衡施肥研究

Study on Balanced Fertilization of Pumpkins in Northwest Plateau of Hebei Province

针对冀西北高原地区食用南瓜施肥管理技术的空缺,设置了微区定位控制性试验,研究了氮磷钾施肥对南瓜产量、品质和植株生长的影响。结果表明:氮磷钾平衡施肥可显著提高南瓜产量,任何一种主要营养元素的缺乏均会造成南瓜产量明显下降,特别是磷素。平衡施肥可保持南瓜生长后期植株活力和促进养分向收获器官的顺畅运移,保证南瓜营养品质与外观品质。

To solve the lack of fertilization technique on the introduced economic crop pumpkins in Northwest Plateau of Hebei Province,the effects of nitrogen,phosphorus and potassium fertilization on yields,quality and growth of pumpkins were studied in positioning micro-field.The results indicated that balanced fertilization significantly increased pumpkins yields and the deficiency of anyone macronutrients could decrease pumpkins yields obviously,especially phosphorus.Balanced fertilization could maintain plant vigor and transportation of nutrition into pumpkins,which guaranteed nutritional quality and appearance quality of pumpkins.