Acta Agrestia Sinica

Acta Agrestia Sinica ›› 2018, Vol. 26 ›› Issue (1): 261-263.DOI: 10.11733/j.issn.1007-0435.2018.01.034

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Effect of Cultivars and Harvest Stages on the Maize Yield and Silage Quality

WANG Yun-tao1, YANG Zhi-min2, LIU Jian-cheng2, WANG Chun-jie1, HUANG Jin-shan2, YAO Jian-kun3, YAN Shu-ying4, WU Zhan-jun5   

  1. 1. Zhangjiakou University, Zhangjiakou, Hebei Province 075000, China;
    2. Zhangjiakou Agricultural Academy, Zhangjiakou, Hebei Province 075000, China;
    3. Center for Disease Control and Prevention of Guyuan, Zhangjiakou, Hebei Province 076550, China;
    4. Grassland Station of Zhangjiakou, Zhangjiakou, Hebei Province 075000, China;
    5. Agricultural and Pastoral Bureau of Kangbao, Zhangjiakou, Hebei Province 076650, China
  • Received:2017-06-06 Revised:2018-03-14 Online:2018-02-15 Published:2018-05-25

品种和收获期对全株玉米生物产量和青贮品质的影响

王运涛1, 杨志敏2, 刘建成2, 王春杰1, 黄金山2, 姚剑坤3, 阎淑英4, 吴占军5   

  1. 1. 张家口学院, 河北 张家口 075000;
    2. 张家口市农业科学院, 河北 张家口 075000;
    3. 沽源县疾控中心, 河北 张家口 076550;
    4. 张家口市草原站, 河北 张家口 075000;
    5. 康保县农牧局, 河北 张家口 076650
  • 通讯作者: 杨志敏
  • 作者简介:王运涛(1985-),男,河北曲阳人,讲师,主要从事牧草资源与育种研究,E-mail:wytao88@163.com
  • 基金资助:

    张家口市科技攻关项目（1511063C）；张家口学院草地资源保护与利用研究科研团队；河北省现代农业产业技术体系草业创新团队资助

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Abstract:

In order to research the effect of maize cultivars and harvest stages on the yield and silage quality, 4 maize varieties were used as materials to analyze the nutrition quality of silage and fresh yield at 3 periods. The result showed that: ‘Zhongyuandan 32’ had the highest fresh yield and CP. As the silage time was delayed, CP, starch, acetic acid and lactic acid gradually decreased, while fat and WSC increased first and then decreased, but pH reduced first and then increased. Considering the yield and silage quality, the optimum harvest and silage time of maize should be between the milk stage and dough stage.

Key words: Maize, Harvest stage, Yield, Silage quality

摘要：

为研究品种和收获期对全株玉米生物产量和青贮品质的影响，以‘郑单958’、‘农大108’、‘改良958’、‘中原单32’等为试验材料，分别于不同时期收获并进行青贮，对相关指标进行分析。结果表明：‘中原单32’的鲜草产量和粗蛋白含量最高。随着青贮时期的推迟，粗蛋白（cude protein，CP）、淀粉、乙酸和乳酸含量逐渐递减，脂肪和水溶性碳水化合物（water soluable carbohydrate，WSC）含量先上升后下降，pH值先降低后升高。综合考虑生物产量和青贮品质，青贮玉米最佳的收获时期在乳熟期和蜡熟期之间。

关键词: 玉米, 收获期, 生物产量, 青贮品质

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