不同比例控释氮肥与普通氮肥对马铃薯产量影响研究  

Experiment of the Ratio of Controlled Release Nitrogen Fertilizer and Conventional Fertilizer of Potatoes in Pengyang County

作　　者：牛勇琴 牛勇琴(宁夏彭阳县蔬菜产业发展服务中心,宁夏彭阳756500)

机构地区：[1]宁夏彭阳县蔬菜产业发展服务中心

出　　处：《宁夏农林科技》2019年第8期15-16,23,共3页Journal of Ningxia Agriculture and Forestry Science and Technology

基　　金：宁夏回族自治区财政补贴项目

摘　　要：对彭阳县种植马铃薯进行控释氮肥与普通氮肥最佳施用比例试验研究,结果表明,控释氮肥与普通氮肥比例为40∶60,即667 m^2施氮肥39.0 kg(控释氮肥16.2 kg、普通氮肥22.8 kg)增产增收效果明显,产量最高,为2017.0 kg/667 m^2,增产544.6 kg/667 m^2,增长36.99%,肥料产投比为1.85。一次性基施控释氮肥与普通氮肥(比例为40∶60)35~40 kg/667m^2,或直接施用控释氮肥35 kg/667 m^2,产量与效益最佳。In this paper,the optimal application ratio of the potato controlled release nitrogen fertilizer and conventional fertilizer was studied in Pengyang County.The results showed that the ratio 40︰60(applying N 39.0 kg/667 m^2,16.2 kg controlled release N fertilizer and 22.8 kg conventional N fertilizer)significantly increased the production and income,and achieved the highest yield of 2017.0 kg/667 m^2,increasing by 36.99%,with the increase of 544.6 kg/667 m^2.The ratio of output to input was 1.85.To realize the optimal yield and benefits,one-time base application of 35~40 kg/667 m^2 controlled release N fertilizer and conventional fertilizer(40︰60 ratio)or the direct application of 35 kg/667 m^2 controlled release N fertilizer was preferred.

关 键 词：马铃薯 控释氮肥 产量 

分 类 号：S532[农业科学—作物学]