摘要
研究了马铃薯青薯2号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10000kg)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10000kg。
In Huangzhong County of Xining, the main potato producing area of QingHai province, a two-year experiment has been carried out to study the fertilization effects on the production and its related traits of potato Qingshu 2. The test results showed that based on the usual fertilization in local area （ N-80 kg·ha^-1, farmyard manure-10000kg·ha^-1 ）, by increasing the amount of nitrogenous fertilizer to 120kg · ha^-1 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 proportion of N 120kg·ha^-1, P2O580kg·ha^-1, K20 180kg·ha^-1, farmyard manure 10000kg·ha^-1 was recommended.
出处
《青海农林科技》
2007年第2期73-74,共2页
Science and Technology of Qinghai Agriculture and Forestry
关键词
马铃薯
青薯2号
施肥效果
高产
Potato
Qingshu 2
Effect of fertilization, High yield
