草地学报

草地学报 ›› 2022, Vol. 30 ›› Issue (12): 3439-3446.DOI: 10.11733/j.issn.1007-0435.2022.12.031

• 技术研发 • 上一篇    

不同播种量毛苕子与燕麦混播对草地生产性能及营养品质的影响

冯琴1,2,3, 王斌1,2,3, 王腾飞1,2,3, 倪旺1,2,3, 邓建强1,2,3, 兰剑1,2,3   

  1. 1. 宁夏大学农学院, 宁夏 银川 750021;
    2. 宁夏草牧业工程技术研究中心, 宁夏 银川 750021;
    3. 农业农村部饲草生产模式创新重点实验室, 宁夏 银川 750021
  • 收稿日期:2022-06-09 修回日期:2022-07-14 发布日期:2023-01-04
  • 通讯作者: 兰剑,E-mail:ndlanjian@163.com
  • 作者简介:冯琴(1999-),女,汉族,贵州遵义人,硕士研究生,主要从事牧草育种与栽培研究,E-mail:1330653822@qq.com
  • 基金资助:
    “一年两熟”人工草地可持续发展模式研究与示范项目(2020BBF02001);宁夏高等学校一流学科建设(草学学科)项目(NXYLXK2017A01)资助

Effects of Mixed Sowing of Vetch and Oat on Production Performance and Nutrient Quality of Grassland

FENG Qin1,2,3, WANG Bin1,2,3, WANG Teng-fei1,2,3, NI Wang1,2,3, DENG Jian-qiang1,2,3, LAN Jian1,2,3   

  1. 1. College of Agriculture, Ningxia University, Yinchuan, Ningxia 750021, China;
    2. Ningxia Grass and Animal Husbandry Engineering Technology Research Center, Yinchuan, Ningxia 750021, China;
    3. Key Laboratory for Model Innovation in Forage Prodiciency Efficiency of Aguzculture and Rural Affairs, Yinchuna, Ningxia 750021
  • Received:2022-06-09 Revised:2022-07-14 Published:2023-01-04

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摘要： 为探究出宁夏干旱区毛苕子(Vicia villosa)与燕麦(Avena sativa)混播的最佳播种量。试验采用单因素随机区组设计，设置五个毛苕子播种量水平(V1：33.0kg·hm-2、V2：45.0kg·hm-2、V3：57.0kg·hm-2、V4：69.0kg·hm-2和V5：81.0kg·hm-2)与燕麦(120.0kg·hm-2)混播，毛苕子单播(VD：57.0kg·hm-2)和燕麦单播(OD：180.0kg·hm-2)为对照，研究了混播草地牧草农艺性状、生产性能以及营养价值。结果表明，燕麦株高在V2处理下最高，密度在V5处理下最大；毛苕子株高和密度在V4处理下最大。V1，V2，V3和V5处理的总干草产量较单播处理不同程度增加，其中V2处理的总干草产量较燕麦、毛苕子单播分别提高了15.75%，63.21%。除V4外其他处理的土地当量比均大于1，表明混播提高了土地利用效率。混播草地较燕麦单播提高了粗蛋白含量和相对饲喂价值，降低了酸性和中性洗涤纤维含量。综合评价显示，排名由高到低为V2>V1>V5>V3>V4，因此，建议在宁夏干旱区毛苕子与燕麦混播的最佳播种量为45.0 kg·hm-2。

关键词: 混播草地, 生产性能, 土地当量比, 牧草品质, 毛苕子, 燕麦

Abstract: In order to explore the optimal sowing rate of mixed sowing of Vicia villosa and Avena sativa in arid areas of Ningxia. A single-factor randomized block design was used in the experiment. Five sowing rates of vetch (V1:33.0 kg·hm-2,V2:45.0 kg·hm-2,V3:57.0 kg·hm-2,V4:69.0 kg·hm-2 and V5:81.0 kg·hm-2) were mixed with oat (120.0 kg·hm-2),and vetch monoculture (VD:57.0 kg·hm-2) and oat monoculture (OD:180.0 kg·hm-2) were used as control. The agronomic traits,production performance,and nutritional value of forage in mixed grassland were studied. The results showed that the plant height of the oat was the highest under the V2 treatment,and the density was the highest under the V5 treatment. The plant height and density of vetch were the highest under the V4 treatment. The total hay yields of V1,V2,V3, and V5treatments were increased to varying degrees compared with those of monoculture,and the total hay yields of V2 treatment were increased by 15.75% and 63.21% compared with those of oat and vetch monoculture,respectively. The land equivalent ratios of other treatments except V4 were greater than 1,indicating that mixed sowing improved land use efficiency. Compared with oat monoculture,mixed grassland increased crude protein content and relative feeding value,and decreased acid and neutral detergent fiber content. The comprehensive evaluation showed that the order from high to low was V2>V1>V5>V3>V4. Therefore,it is suggested that the best sowing rate of mixed sowing of vetch and oat in arid areas of Ningxia is 45.0 kg·hm-2.

Key words: Mixed grassland, Production performance, Land equivalent ratio, Forage quality, Oat, Vetch

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