播量与播种方式对四川阿坝地区燕麦牧草产量和品质的影响  

Effects of Sowing Rate and Method on the Yield and Quality of Avena sativa L.cv.Magnum

作　　者：陈芸莹[1] 姜臻 张新 李达旭[1] 游明鸿[1] 吴婍[1] 季晓菲[1] 张昌兵[1] 雷雄[1] Chen Yunying;Jiang Zhen;Zhang Xin;Li Daxu;You Minghong;Wu Qi;Ji Xiaofei;Zhang Changbing;Lei Xiong(Sichuan Academy of Grassland Sciences,Chengdu 611743,China;Forestry and Grassland Bureau of A ba County,A ba 624600,China)

机构地区：[1]四川省草原科学研究院,四川成都611743 [2]四川省阿坝县林业和草原局,四川阿坝624600

出　　处：《草学》2023年第3期19-26,共8页Journal of Grassland and Forage Science

基　　金：四川省公益性科研院所基本科研业务费项目-燕麦SNP指纹图谱开发及其种质资源遗传多样性研究;国家牧草产业技术体系阿坝综合试验站(农业部CARS-34)共同资助。

摘　　要：为进一步提高燕麦(Avena sativa L.)饲草生产性能,降低生产成本,本试验以梦龙燕麦(Avena sativa L.cv.Magnum)为研究对象,采用裂区试验设计,通过综合分析燕麦牧草产量和营养品质相关指标,探究不同播量、播种方式对燕麦饲草产量与品质的影响。结果表明:播种方式与鲜草产量、鲜干比、生殖枝数以及分蘖数呈极显著正相关,与倒伏率呈负相关;播种量与牧草产量有一定相关性,但差异不显著。播种方式为撒播时,梦龙燕麦的鲜草产量、干草产量以及分蘖数随播种量的增加呈先升高后降低的趋势。当播种量为120kg/hm^(2)时,其鲜、干草产量和分蘖数最高,分别为83.87t/hm^(2)、20.93t/hm^(2)和811个/m^(2),其NDF(48.57%)和ADF(27.03%)均达到特级燕麦干草水平,且粗蛋白(9.97%)也有显著提升(P<0.05)。灰色关联度分析表明,该组合与标准处理关联系数关系最大(r=0.7643),可以获得较高的牧草产量和营养价值,适宜在生产中推广。In order to further improving the yield performance of Avena sativa.L.cv.Magnum as well as reducing the production cost,a two-factor experimental design has been carried out to explore the effects of different sowing rate and method on the yield and quality of Magnum which based on the comprehensive analysis of the indexes related to the yield and nutritional quality.The results showed that the planting method was positively correlated with the fresh yield,the ratio of fresh/dry,the number of reproductive branches and tillers,and negatively correlated with lodging rate.There was a certain correlation between seeding quantity and forage yield,but the difference was not significant.When planting way as the sow,the fresh yield,hay yield andtiller number increased with the seeding rate,and then reduced after the first rise.When the seeding amount was 120kg/hm^(2),the fresh and hay yield and tiller number were the highest,which were 83.87 t/hm^(2),20.93t/hm^(2),and 811 tillers/m^(2),respectively.Their NDF(48.57%)and ADF(27.03%)both reached the level of super oat hay,while crude protein(9.97%)also improved significantly(P<0.05).According to the grey relational analysis,this combination has the largest correlation with the standard treatment(r=0.7643),and can obtain higher yield and nutritional value,which is suitable for promotion in production.

关 键 词：播种量 播种方式 梦龙燕麦 牧草产量 牧草品质 

分 类 号：S54.04[农业科学—作物学]