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作 者:桑旦 尼玛仓决 片多 Sangdan;Nimacangjue;Pianduo(Institute of Prataculture Research,Tibet Academy of Agricultual and Animal Husbandry Sciences,Tibet Lhasa 850000,China)
机构地区:[1]西藏自治区农牧科学院草业科学研究所,西藏拉萨850000
出 处:《西藏农业科技》2023年第2期22-26,共5页Tibet Journal of Agricultural Sciences
基 金:中央引导地方项目“不同混播组合模式牧草高产栽培技术转化示范”(XZ202001YD0015C);国家牧草产业技术体系拉萨综合试验站(CARS-34)。
摘 要:本研究结合尼洋河中上游实际情况,选取适宜当地种植的1种燕麦和2种豌豆,设置两种不同的混播组合,每个混播组合中设5种不同的播量比例,并以单播为对照,研究了不同混播组合与比例对混播牧草产量及品质的影响,明确了尼洋河中上游区域燕麦和豌豆的最佳混播组合与比例。结果表明,在所有混播组合中梦龙燕麦与箭筈豌豆(兰箭3号)混播时播量比例7︰3(每667 m^(2)播量燕麦12.6 kg,豌豆5.4 kg)时产量达到最高,每667 m^(2)鲜草产量和干草产量分别为3072.65 kg和767.05 kg,分别比单播燕麦(鲜草产量2685.79 kg/667 m^(2),干草产量648.66 kg/667 m^(2))提高12.3%和15.4%。梦龙燕麦与本地豌豆混播时播量比例6︰4(每667 m^(2)播量燕麦10.8 kg,豌豆7.2 kg)的产量最理想,每667 m^(2)鲜草产量和干草产量分别为2832.53 kg和699.24 kg,分别比燕麦单播(鲜草产量2685.79 kg/667 m^(2),干草产量648.66 kg/667 m^(2))提高5.18%和7.23%。梦龙燕麦与箭筈豌豆(兰箭3号)混播时粗蛋白质含量随着豌豆的比例增加而增加,最高时比燕麦单播提高1.9%。总体粗蛋白、粗纤维、粗脂肪、含水量之间差异不显著。Combined with the actual situation of the middle and upper reaches of the Niyang river,this study selected one kind of oat and two kinds of peas,suitable for local planting,and set up two different mixed sowing combinations,5 different proportion of sowing amount in each mix and take unicast as the control.The effects of different mixture combinations and proportions on the yield and quality of mixed forage were studied to determine the optimum mix and proportions of oats and peas in the middle and upper reaches of the Niyang river or similar valley agricultural areas of Tibet Autonomous Region.The results showed that among all the mixed sowing combinations,the yield of Menglong oats mixed sowing with Lanjian No.3 at the proportions of 7︰3(12.6 kg/667 m^(2) for oats and 5.4 kg/667 m^(2) for peas)reached the highest,which were fresh grass 3072.65 kg/667 m^(2) and hay grass 767.05 kg/667 m^(2),increased by 12.3%and 15.4%than that of single sowing oat,respectively.The fresh and dry grass yield of Menglong oats mixed sowing with local peas at the proportions of 6︰4(the sowing amount of oats 10.8 kg/667 m^(2):peas 7.2 kg/667 m^(2))were 2832.53 kg/667 m^(2) and 699.24 kg/667 m^(2),respectively,increased by 5.18%and 7.23%,respectively.The crude protein content of Menglong oats mixed sowing with Lanjian No.3 was increased with the increase of pea proportion,and the maximum crude protein content was 1.9%higher than that of oats unicast sowing.There was no significant difference in total crude protein,crude fiber,crude fat and water content.
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