成县马铃薯2+X氮肥总量控制试验初报

Preliminary Report on Total Amount Control of Potato 2+X Fertilizer in Chengxian

摘要: 通过对成县马铃薯进行2+X氮肥总量控制试验，得出在成县种植地膜马铃薯每0.067 hm²最佳施肥量为N 10 kg,P₂O₅5 kg,K₂O 20 kg，马铃薯产量为2 524 kg。

Abstract: Through the experiment of total amount control of 2+X nitrogen fertilizer on potatoes in Chengxian,it is concluded tha the optimal fertilization amount of film mulched potatoes 0.067 hm~2in Chengxian is N 10 kg,P₂O₅5 kg,K₂O 20 kg,and the yield is2 524 kg.