西藏当雄县暖圈牧草种植模式构建及效益分析

针对西藏当雄县冬季牲畜牧草供给不足和暖季暖圈闲置现状,开展了暖圈中种植不同饲草品种的对比试验。结果表明,在燕麦（青海444和白燕2号）、箭筈豌豆（甘孜333）和芫根（曲水县地方品种）3种作物4个品种中,箭筈豌豆的种植效益最好,种植方式和利用方法可操作性强,并且其本身营养丰富,饲喂牲畜育肥效果好,作为豆类作物还能改善当地的土壤状况,是暖圈中饲草品种的最佳选择。提出了冷季养畜、暖季种草的暖圈利用新模式,对当地畜牧业经济的可持续发展提供了新的发展方向。

Construction and Benefit Analysis of the Herbage Planting Mode in Warm Shed in Dangxiong County of Tibet

In view of the present situation of the insufficient supply of herbage for livestock in winter in Dangxiong County of Tibet and the idle status of warm shed in warm seasons of this region, the comparative variety trial was conducted to evaluate the economic benefit of planning different varieties of herbage. Amongst the selected four varieties of herbage, including Avena sativa（Qinghai No.444 and Baiyan No.2）, Vicia sativa（Ganzi No.333） and Bassia rapa（landrace of Qushui County）, the Vicia sativa（Ganzi No.333） had the best planning economic benefit. The planting pattern and utilization method of Ganzi No.333 showed good operability. Furthermore, the Ganzi No.333 had higher nutritional value and had good feeding effect for livestock fattening.As a legume crop, the Vicia sativa variety of Ganzi No.333 is able to improve the local soil condition. The combined data suggest that Ganzi No.333 is a recommended herbage variety for warm shed planning. In conclusion, we propose a new application model for warm shed of livestock breeding in cold seasons and herbage planning in warm seasons, which provides a novel direction for the sustainable development of local animal husbandry economy.