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我省西部地区有宜牧草原173.4万公顷。产草量高,草质好,是我省发展畜牧业的重要物质基础。但是,由于多年来经营管理不善,毁草开荒,过牧等原因,目前沙化、碱化、退化面积占总面积的25%左右,已影响了畜牧业的发展。为改变这种状况,促进畜牧业的发展,1981～1984年我们与齐齐哈尔种畜场共同承担了天然草场改良和建立人工草场的科研任务。要求建立人工草场和改良天然草场各333.33公顷,人工草场每公顷产干草3,750.0公斤,改良草场每公顷产干草2,250.0公斤,平均每公顷产干草3,000.0公斤。一、试验地自然概况试验地选在齐齐哈尔种畜场内。年降雨量430毫米左右,多集中在7～8月份,年平均>0℃的积温3,160.6℃,≥10℃的有效积温2,712.9℃,年平均相对湿度65%左右。年
In the western region of our province, 1.174 million hectares of pasture should be grassland. High yield grass, good grass, animal husbandry in our province is an important material basis. However, due to the poor management and management over the years, land reclamation and pastures, the current desertification, alkalization and degeneration accounts for about 25% of the total area, which has affected the development of livestock husbandry. In order to change this situation and promote the development of animal husbandry, from 1981 to 1984, we carried out scientific research tasks of natural grassland improvement and establishment of artificial grassland together with the Qiqihar breeding stock farm. Requiring 333.33 hectares of artificial grassland and natural grassland improvement each, 3,750.0 kg of hay per hectare of artificial grassland, 2,250.0 kg of hay per hectare of improved grassland and 3,000.0 kg of hay per hectare. First, the experimental nature of the test selected in Qiqihar breeding grounds. Annual rainfall of about 430 mm, and more concentrated in July and August, the average annual temperature> 0 ℃ accumulated temperature 3,160.6 ℃, ≥ 10 ℃ effective accumulated temperature 2,712.9 ℃, the annual average relative humidity of about 65%. year