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为探明张家口地区各种类型玉米秸秆的营养价值,选用该区广泛种植的15个玉米品种作为试验材料,开展了不同玉米品种乳熟后期秸秆主要化学成分的比较研究。结果表明:粗蛋白含量高于10.30%的品种为巡青518、巡青969、中糯1号、中糯2号、高油115和巡青2008;粗脂肪含量高于1.95%的品种为巡青938、东陵白和中糯2号;水溶性碳水化合物(WSC)和总糖含量最高、次高和第三高的品种分别为中糯1号、东陵白、先玉335;营养价值较高的品种分别是中糯1号、东陵白、中糯2号、先玉335和巡天2008。
In order to find out the nutritional value of various types of corn stalks in Zhangjiakou region, 15 maize varieties widely planted in this area were selected as the experimental materials to carry out comparative studies on the main chemical components of straw during the late milky stage of different maize varieties. The results showed that the varieties with Crude protein content above 10.30% were Paoqing 518, Paoqing 969, Zhongnuo 1, Zhongnuo 2, Gaoyou 115 and Paoqing 2008; the varieties with crude fat above 1.95% Qing 938, Donglingbai and Zhongnuo No.2; WSC and total sugar contents were the highest, the next highest and the third highest were Zhongnuo 1, Donglingbai and Xiangyu 335, respectively. The nutritional value The higher varieties were Zhongnuo 1, Dongling white, Zhongnuo 2, Xiangyu 335 and Xuntian 2008.