施氮量和种植密度对石河子复播早熟饲用燕麦生产性能的影响  

Effects of Nitrogen Application Rate and Planting Density on Production Performance of Early Maturing Forage Oat in Shihezi,Xinjiang

作　　者：付东青 王彦超 宋磊 王旭哲[1] 张凡凡[1] 马春晖[1] FU Dong-qing;WANG Yan-chao;SONG Lei;WANG Xu-zhe;ZHANG Fan-fan;MA Chun-hui(College of Animal Science and Techoology,Shihezi University,Shihezi,Xinjiang 832000,China)

机构地区：[1]石河子大学动物科技学院,新疆石河子832000

出　　处：《草地学报》2021年第10期2364-2371,共8页Acta Agrestia Sinica

基　　金：国家牧草产业技术体系项目(CARS-34)资助。

摘　　要：为探究施氮量和种植密度对复播早熟饲用燕麦(Avena sativa L.)产量和品质的影响,以‘青海444’(A1),‘青引1号’(A2),‘领袖’(A3)和‘青燕1号’(A4)为材料,采用两因素裂区设计,设施氮量为主区,分别为0.00 kg·hm^(-2)(B0)、80.00 kg·hm^(-2)(B1)、160.00 kg·hm^(-2)(B2)3个处理;设种植密度为副区,分别为168.00 kg·hm^(-2)(C1)、240.00 kg·hm^(-2)(C2)、312.00 kg·hm^(-2)(C3)3个处理。对各处理燕麦干草产量、株高、营养品质[干物质(Dry matter,DM)、粗蛋白(Crude protein,CP)、中性洗涤纤维(Neutral detergent fiber,NDF)、酸性洗涤纤维(Acid detergent fiber,ADF)和粗脂肪(Ether extract,EE)]分析,结果表明,施氮量和种植密度对燕麦DM,CP,ADF,NDF和EE含量有显著影响(P<0.05),乳熟期随种植密度增加,DM,CP,NDF和ADF含量不断递减,随施氮量增加不断递增。综上,石河子地区4个饲用燕麦均适合在乳熟期收获,且‘青海444’为最佳种植品种,其最佳施氮量为80.00 kg·hm^(-2),种植密度为312.00 kg·hm^(-2)。To explore the effects of nitrogen application rate and planting density on the yield and quality of reseeding early-maturing fodder oats(Avena sativa L.).Take‘Qinghai 444’(A1),‘Qingyin No.1’(A2),‘Leader’(A3)and‘Qingyan No.1’(A4)as materials.A two-factor split zone design was adopted,and the nitrogen content of the facility was set mainly Districts,with three treatments 0.00 kg·hm^(-2)(B0),80.00 kg·hm^(-2)(B1),and 160.00 kg·hm^(-2)(B2).Set the planting density as the sub-zone,with 3 treatments of 168.00 kg·hm^(-2)(C1),240.00 kg·hm^(-2)(C2),and 312.00 kg·hm^(-2)(C3)respectively.For each treatment oat hay yield,plant height,nutritional quality[Dry matter(DM),crude protein(CP),neutral detergent fiber(NDF),acid detergent fiber(ADF)and Ether extract(EE)]were analyzed.The results showed that nitrogen application rate and planting density had significant effects on the content of DM,CP,ADF,NDF and EE in oats(P<0.05).During the milk maturity period,with the increase of planting density,the contents of DM,CP,NDF and ADF continued to decrease,and increased with the increase of nitrogen application rate(P<0.05).In summary,the 4 fodder oats in Shihezi area are all suitable for harvesting in the milk maturity period,and‘Qinghai 444’is the best planting variety,the best nitrogen application rate is 80.00 kg·hm^(-2),and the planting density is 312.00 kg·hm^(-2).

关 键 词：饲用燕麦 施氮量 种植密度 营养品质 干草产量 

分 类 号：S512.6[农业科学—作物学]