Influence of Short-term Maize–Green Manure Cover Crop Rotations on Germinable Weed Seed Bank under Conservation Agriculture

Asian Journal of Agriculture and Rural Development

article

Rugare Joyful Tatenda¹  Pieterse Petrus Jacobus²  Mabasa Stanford³ 

[1] Department of Agronomy, Stellenbosch University, South Africa, South Africa, Department of Crop Science, University of Zimbabwe;Department of Agronomy, Stellenbosch University, South Africa, Private Bag X1 Matieland;Department of Crop Science, University of Zimbabwe

关键词: Allelopathy;    Conservation agriculture;    Crop rotation;    Cover crops;    Weed seed bank;    Zea mays L.;   

DOI  :  10.18488/journal.ajard.2021.111.139.155

学科分类：农业科学（综合）

来源: Asian Economic and Social Society

【 摘 要 】

0.05) affected by cover crop mulch type across the seasons. There was a significant (p < 0.05) decline in weed density in the second maize phase of the rotation in UZ Field A. Bidens pilosa, Galinsoga parviflora, Amaranthus hybridus and Eleusine indica were the dominant weeds. B. pilosa density significantly decreased in the second season in UZ Field A but did not vary significantly among cover crops. Significant changes in weed species richness, evenness, and diversity were observed only in the second phase of the rotation in UZ Field A. The results suggest that maize-cover crop rotations could be effective in reducing seed bank size in the short term but have no short-term effect on weed species community composition.

【 授权许可】

CC BY