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Effects of Winter Cereals (triticum Aestivum L., Hordeum Vulgare L., Triticosecale Wittmack) and Winter Pea (pisum Sativum L.) Intercropping on Weed Cover in South-Eastern and Central Hungary

AGRONOMY-BASEL(2023)

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Abstract
Growing two or more crops together in the same area at the same time, called intercropping, is a well-known agroecological method of weed suppression. Cereal-legume intercropping systems are of great importance in increasing biodiversity in arable lands. In cereal-legume mixtures, cereals provide physical support to legumes and enhance weed suppression. Cereals have a stronger weed suppression ability than peas. The aim of our research was to determine the weed composition and weed cover of pure winter wheat, pure barley, pure triticale and pure winter pea, as well as associated wheat-pea, barley-pea, and triticale-pea crops in two locations (Szeged and Fulopszallas) and in two growing seasons (2020/2021 and 2021/2022). In Fulopszallas, the average weed cover was significantly higher than in Szeged. When comparing the years and crop production methods, significant differences were observed in weed cover in the pure legume plots. More weed species appeared in Szeged and Fulopszallas in the second year than in the first year. Cereal-pea intercropping reduces the need for herbicides; we can achieve more sustainable and effective weed management without herbicide treatment.
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Key words
weed cover,weed suppression,cereal-pea intercropping,plant association,winter pea,winter wheat,triticale,barley
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