摘要
为青海省东部农业区饲草生产上禾豆牧草混播技术的推广应用提供科学依据,选用燕麦青甜1号与饲用豌豆青建1号为试材,采用田间试验方法,研究不同混播比例对饲草产质量的影响。结果表明:燕麦株高混播与单播间差异均不显著,饲用豌豆株高单播显著低于混播;随着饲用豌豆混播量的增加,燕麦密度呈下降趋势,饲用豌豆呈上升趋势,总密度混播(8∶2除外)均显著低于单播,燕麦与饲用豌豆混播的分蘖数和有效分蘖数与燕麦单播间差异均不显著,饲用豌豆单播分枝数显著高于各混播处理;燕麦与饲用豌豆混播比例为6∶4时,其鲜草、干草和粗蛋白产量最高,分别为57935.90 kg/hm^2、16345.52 kg/hm^2和1897.71 kg/hm^2,较燕麦单播分别提高28.26%、17.25%和59.58%,较饲用豌豆单播分别提高48.80%、92.69%和14.03%。燕麦与饲用豌豆混播比例为6∶4及总密度425万株/hm^2可在青海东部农业区和农牧交错地带饲草混播生产中推广应用。
The effects of Avena sativa L.cv.Qingtian No.1 and Pisum sativum Linn.cv.Qingjian No.1 mixed with different proportion on forage yield and quality are studied by a field test method to provide the scientific basis for popularization and application of legume-grass mixture sowing technology in forage production in agricultural area of Eastern Qinghai.Result:There is no obvious difference in plant height of A.sativa between mixed sowing treatment and mono culture treatment.The plant height of P.sativum-mono culture treatment is significantly lower than mixed sowing treatment.The density of A.sativa and P.sativum show a decreasing and rising trend respectively with increase of P.sativum mixed quantity.The total density of A.sativa under mixed sowing treatment is significantly lower than under mono culture treatment(except A.sativa∶P.sativum=8∶2).There is no obvious difference in tiller number and effective tiller number of A.sativa between mixed with P.sativum treatment and A.sativa-mono culture treatment.The branching number of P.sativum-mono culture is significantly higher than mixed with different proportion of A.sativa.When the proportion of A.sativa and P.sativum is 6∶4,the yield of fresh forage,dry forage and crude protein is 57935.90 kg/hm^2,16345.52 kg/hm^2 and 1897.71 kg/hm^2 respectively,28.26%,17.25%and 59.58%higher than A.sativa-mono culture,and 48.80%,92.69%and 14.03%higher than P.sativum-mono culture.The 6∶4 of A.sativa and P.sativum and 425×10^4 plant/hm^2 total density pattern can be popularized and applied in production of forage mixed sowing in juncture of agricultural area and farming land of Eastern Qinghai.
作者
刚永和
张海博
刚馥欣
杜江
牛勇
萨仁花
GANG Yonghe;ZHANG Haibo;GANG Fuxin;DU Jiang;NIU Yong;SA Renhua(Ledu Grassland Station,Haidong,Qinghai 810700;Qinghai Vocational and Technical Institute of Animal Husbandry and Vet,Xining,Qinghai 812100,China)
出处
《贵州农业科学》
CAS
2020年第7期23-28,共6页
Guizhou Agricultural Sciences
基金
青海省科技厅“青海东部农区肉牛高效生态养殖模式及可持续发展技术集成与示范”(2020-NK-C21)。
关键词
燕麦
饲用豌豆
混播
产草量
饲草品质
东部农业区
青海
Avena sativa
Pisum sativum
mixed sowing
forage yield
forage quality
agricultural area of Eastern Qinghai
Qinghai
