丘陵残塬区覆膜玉米控释氮肥减量试验研究  

Experimental Study of Controlled-Release of Nitrogen Fertilizer on Plastic Film Mulching Maize in Broken Plateau Area of Hilly Areas

作　　者：曹学海 Cao Xuehai(Pengyang County Seed Management Station,Pengyang,Ningxia 756500)

机构地区：[1]宁夏彭阳县种子管理站,宁夏彭阳756500

出　　处：《宁夏农林科技》2021年第8期9-10,23,共3页Journal of Ningxia Agriculture and Forestry Science and Technology

摘　　要：通过试验,探讨彭阳县中部河谷残塬区地膜玉米控释氮肥的最佳施用量。结果表明,在基施有机肥(猪粪)1750 kg/666.7 m^(2)的条件下,分别施用控释氮全量与控释氮90%量66.08 kg/667 m^(2)、61.43 kg/667 m^(2),玉米产量为777.6 kg/667 m^(2)、752.9 kg/667 m^(2),较控释氮60%量增产130.0 kg/667 m^(2)、105.3 kg/667 m^(2),增加20.07%、16.25%,增加产值169.0元/667 m^(2)、136.89元/667 m^(2),增收107.44元/667 m^(2)、90.72元/667 m^(2)。在彭阳河谷残塬区种植地膜玉米,氮肥减量条件下,控释氮90%量玉米产量与效益最佳。Through experiments,this paper explored the optimal application amount of controlled-release nitrogen fertilizer for the target yield of mulching maize planted in the broken plateau area of the middle river valley of Pengyang County.The results showed that with the application of basal fertilizer(pig manure)of 1750 kg/667 m^(2),and under the application of a total and 90%of controlled release of nitrogen of 66.08 kg/667 m^(2) and 61.43 kg/667 m^(2),the yields were 777.6 kg/667 m^(2) and 752.9 kg/667 m^(2),respectively.Compared with the application of 60%of controlled release of nitrogen,the yields increased by 130.0 kg/667 m^(2)(20.07%)and 105.3 kg/667 m^(2)(16.25%).The production value was increased by 169.0 yuan/667 m^(2) and 136.89 yuan/667 m^(2),respectively.The income increased by 107.44 yuan/667 m^(2) and 90.72 yuan/667 m^(2),respectively.The practice showed that the application of 90%controlled release of nitrogen could realize the optimal yield and benefits of the mulching maize in broken plateau area of Pengyang river valley.

关 键 词：覆膜玉米 控释氮肥减量 丘陵残塬区 

分 类 号：S513[农业科学—作物学]