氮肥水平对几种牧草在冬闲田种植产量的影响  

Effects of Nitrogen Fertilizer on Yield of Several Herbage in Winter Idle Fields

作　　者：于徐根 徐桂花 李翔宏 戴佂煌 刘水华 黄栋 甘兴华 YU Xu-gen;XU Gui-hua;LI Xiang-hong;DAI Zheng-huang;LIU Shui-hua;HUANG Dong;GAN Xing-hua(Animal Husbandry Technique Extension Station of Jiangxi Province,Nanchang 330046,China)

机构地区：[1]江西省畜牧技术推广站

出　　处：《江西农业学报》2020年第2期56-60,65,共6页Acta Agriculturae Jiangxi

基　　金：江西省农牧渔业科研项目(NY201018);江西现代农业科研协同创新专项(JXXTCX20702);江西省现代农业产业技术体系建设专项资金(JXARS-13-03)

摘　　要：研究了75、150、225 kg/hm^2的3个尿素施肥水平对多花黑麦草、燕麦、小黑麦(冬牧70)、饲用豌豆、紫云英、箭筈豌豆、毛苕子在红壤丘陵区冬闲田种植产量的影响。研究结果表明:干草总产量受第1茬影响较大,其变化趋势与第1茬干草产量相似;除紫云英和毛苕子外,225 kg/hm^2处理的总干草产量显著高于75 kg/hm^2处理(P<0.05)。在"稻-草"模式和"稻-稻-草"模式下,燕麦和多花黑麦草的150、225 kg/hm^2处理干草产量高于其他牧草,显著高于豆科牧草(P<0.05);在豆科牧草中,除饲用豌豆75 kg/hm^2和箭筈豌豆75 kg/hm^2处理外,其他豆科牧草和处理间无显著差异(P>0.05)。The effects of three levels of urea fertilization(75 kg/hm^2, 150 kg/hm^2 and 225 kg/hm^2) on the yield of Italian Ryegras, oat, triticale(Dongmu 70), forage pea, Chinese milk vetch, Vicia sativa and Vicia villosa Roth in winter idle field in red soil hilly area were studied. The results showed that the total hay yields of forage were greatly affected by the first cutting, and the change trend of the total hay yield was similar to that of the first cutting. The total hay yield of 225 kg/hm^2 treatment was significantly higher than that of 75 kg/hm^2 treatment(P<0.05), except for Chinese milk vetch and Vicia villosa Roth. The hay yield of oat and ryegrass treated with 150 kg/hm^2 and 225 kg/hm^2 was higher than that of other forages, significantly higher than that of leguminous forages(P<0.05);and except for forage pea treated with 75 kg/hm^2 and Vicia sativa treated with 75 kg/hm^2, there was no significant difference between the two treatments of leguminous forages(P>0.05).

关 键 词：氮肥 牧草 冬闲田 产量 

分 类 号：S54[农业科学—作物学]