摘要
研究了马铃薯紫花白的施肥方法对产量及相关性状的影响。结果表明,在当地习惯施肥(每公顷施N80kg、农家肥1×104kg)基础上,提高氮肥量至每公顷120kg,同时增施磷钾肥,提高了马铃薯产量、块茎淀粉含量和商品率,提高了叶绿素含量和净同化率。根据增产提质效果及实际效益,推荐施肥量为每公顷N120kg、P2O580kg、K2O180kg、农家肥1×104kg。
In Jinyun County of Lishui,the main potato producing area of Zhejiang province,a two-year experiment has been carried out to study the fertilization effects on the production and its related traits of potato with purple flowers.The test shows that based on the usual fertilization in local area(N-80 kg·hm-2,farmyard manure-104kg·hm-2),by increasing the amount of nitrogenous fertilizer to 120 kg·hm-2 and increasing the amount of phosphate and potassium fertilizer,potato production,starch content and commodity rate could be improved,and chlorophyll content and net assimilation rate could be increased.Besides,different methods of phosphate and potassium fertilizer lead to different effects.To raise the production,improve the quality,and get practical benefits,a proportioning of N-120kg·hm-2,P2O580-kg·hm-2,K2O-180kg·hm-2,farmyard manure-104kg·hm-2 was recommended.
出处
《湖北农业科学》
北大核心
2006年第3期300-302,共3页
Hubei Agricultural Sciences
基金
浙江省丽水市科技计划项目(2004305-2)
