Welcome to Acta Prataculturae Sinica ! Today is Share:

Acta Prataculturae Sinica ›› 2022, Vol. 31 ›› Issue (4): 62-71.DOI: 10.11686/cyxb2021012

Previous Articles     Next Articles

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

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