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草业学报 ›› 2022, Vol. 31 ›› Issue (4): 62-71.DOI: 10.11686/cyxb2021012

• 研究论文 • 上一篇    下一篇

宁夏干旱区滴灌条件下燕麦与光叶紫花苕不同混播模式的生产性能、品质及综合评价研究

李满有1(), 杨彦军2, 王斌1, 沈笑天1, 曹立娟1, 李小云1, 倪旺1, 兰剑1()   

  1. 1.宁夏大学农学院,宁夏 银川 750021
    2.彭阳县草原工作站,宁夏 固原 756000
  • 收稿日期:2021-01-13 修回日期:2021-03-10 出版日期:2022-04-20 发布日期:2022-01-25
  • 通讯作者: 兰剑
  • 作者简介:Corresponding author. E-mail: ndlanjian@163.com
    李满有(1994-),男,宁夏固原人,在读硕士。E-mail: 1249486824@qq.com
  • 基金资助:
    宁夏高等学校一流学科建设(草学学科)项目(NXYLXK2017A01);六盘山地区草产业科技创新技术集成与应用(2018GYYQ0001)

Yield, forage quality and a multivariate evaluation of Avena sativa and Vicia villosa in different mixed planting patterns under drip irrigation in an arid area of Ningxia

Man-you LI1(), Yan-jun YANG2, Bin WANG1, Xiao-tian SHEN1, Li-juan CAO1, Xiao-yun LI1, Wang NI1, Jian LAN1()   

  1. 1.College of Agriculture,Ningxia University,Yinchuan 750021,China
    2.Grassland Workstation,Pengyang County,Guyuan 756000,China
  • Received:2021-01-13 Revised:2021-03-10 Online:2022-04-20 Published:2022-01-25
  • Contact: Jian LAN

摘要:

采用单因素随机区组设计,研究了宁夏干旱地区滴灌条件下燕麦与光叶紫花苕按同行、间行、交叉和条撒4种混播模式对草地生产性能、种间关系的影响,并利用主成分分析(PCA)进行综合评价,探寻燕麦与光叶紫花苕最佳混播模式。结果表明,4种混播模式较单播均显著提高了牧草产量(P<0.05),其中,间行混播下鲜、干草产量最高,分别达36495和11906 kg·hm-2;混播草地较燕麦单播显著改善了牧草品质,其中间行混播牧草相对饲喂价值为115.89,仅低于光叶紫花苕单播;4种混播模式相对产量总和(RYT)均大于1,表现为种间竞争弱于种内竞争,燕麦和光叶紫花苕具有一定的生态位分化,其中间行混播尤为明显。经主成分分析(PCA),燕麦与光叶紫花苕间行混播模式综合性状表现最好。

关键词: 燕麦, 光叶紫花苕, 混播模式, 相对产量总和

Abstract:

This research compared the forage production and inter-species relationships between Avena sativa and Vicia villosa for randomly mixed, alternate-row intercropped, alternate-strip intercropped, and cross-drilled mixed cropped plantings of the two species and their monocultures under drip irrigation in arid areas of Ningxia. The experiment was laid out in a single factor randomized block design, and used principal component analysis (PCA) for multivariate evaluation to explore the best mixed planting mode for A. sativa and V. villosa. It was found that the four mixed sowing modes significantly increased the forage yield compared with monoculture (P<0.05). Among the tested sowing patterns, alternate-row intercropped had the highest yields of fresh forage and hay, these being 36495 and 11906 kg·ha-1, respectively. The mixed plantings significantly improved the forage quality compared with A. sativa monoculture. The relative feeding value of alternate-row intercroped forage (compared with A. sativa) was 115.89, which was exceeded only by V. villosa monoculture. For the four mixed sowing modes, the relative yield total values (RYT) were all greater than 1. Interspecific competition was weaker than intraspecific competition, A. sativa and V. villosa demonstrated a niche differentiation, with the alternate-row intercropped configuration being especially striking. According to PCA, the alternate-row sowing mode for A. sativa and V. villosa had the best multivariate score.

Key words: Avena sativa, Vicia villosa, mixed sowing mode, relative yield total