Intercropping as a Strategy for Weed Management in Faba Bean (Vicia faba L.)

被引:0
作者
Villegas-Fernandez, Angel M. [1 ]
Amarna, Ahmed A. [1 ]
Moral, Juan [2 ]
Rubiales, Diego [1 ]
机构
[1] CSIC, Inst Sustainable Agr, Cordoba 14004, Spain
[2] Univ Cordoba, Dept Agron, Cordoba 14071, Spain
来源
AGRONOMY-BASEL | 2024年 / 14卷 / 06期
基金
欧盟地平线“2020”;
关键词
allelopathy; faba bean; replacement intercropping; addition intercropping; weed control; BARLEY INTERCROPS; WHEAT; ALLELOPATHY; COMPETITIVENESS; PRODUCTIVITY; SOIL; PEA;
D O I
10.3390/agronomy14061170
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Faba bean is an important legume crop worldwide, which is grown both for food and feed. As for many legume crops, postemergence weed control is difficult. The aim of this work was to assess the potential of intercropping in weed management by assessing the effect of mixing faba bean with different crops (wheat, barley, and pea) on weeds in the South of Spain. Four field trials were conducted over four consecutive seasons, and the results found that the addition of alternate intercropping of faba bean and barley achieved high levels of weed control, both for coverage and biomass (92.7% and 76.6%, respectively). Intercropping with wheat did not reduce weed coverage but did decrease weed biomass by 46.1% as compared with the faba bean monocrop. Intercropping with pea did not provide significant reductions in weed coverage or weed biomass. The diversity of the weed community was not altered by the different crop combinations tested. Additional experiments under controlled conditions were carried out to determine the possible role of barley allelopathy in weed suppression. A strong allelopathic effect entailing a reduction in the number of plants and biomass was detected for four weeds including Sinapis arvensis, Polypogon monspeliensis, Matricaria camomilla, and Medicago truncatula. It can be concluded that intercropping faba bean with barley is an excellent strategy for weed control in Southern Spain.
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页数:14
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