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近来年,农业部从美国引进了优质饲用作物——冬牧70黑麦,在天津、唐山一带已引种成功,现将其特点及高产栽培技术要点介绍如下: 1 冬牧70黑麦草的特点 1.1 饲用价值大。蛋白质含量高,据测定:鲜草中粗蛋白含量为4.93％,干草为15％～19％,是玉米的近两倍。还含有大量的铜、锌、铁、锰等微量元素和胡萝卜素、维生素A等。另外,青绿多汁,类似青麦苗,适口性强。较适用于牛羊兔鹿及草鱼的喂养。 1.2 播期弹性大。可秋播,亦可春播。秋播,在秋分与霜降前。春播,同春小麦播期。此草在唐山一带三月份开始返青,返青初期,平均日增高2cm,四月份平均日增高4cm左右。
In recent years, the Ministry of Agriculture introduced from the United States a high-quality fodder crops - 70 animal husbandry in winter and animal husbandry, in Tianjin, Tangshan area has been introduced successfully, now its characteristics and high yield cultivation techniques are as follows: 1 winter grazing 70 ryegrass characteristics 1.1 feeding value. High protein content, it was determined: fresh grass crude protein content of 4.93%, hay is 15% to 19%, nearly twice as much as corn. Also contains a lot of copper, zinc, iron, manganese and other trace elements and carotene, vitamin A and so on. In addition, green and juicy, similar to green seedlings, palatability and strong. More suitable for feeding cattle and sheep deer and grass carp. 1.2 Sowing flexibility. Autumn broadcast, but also spring broadcast. Autumn broadcast, before the fall and frost. Spring sowing, the same spring wheat sowing. This grass began to turn green in March in the Tangshan area. During the early Qing rejuvenation, the average daily height increased by 2cm and the average daily increase was about 4cm in April.