Weeds on tirs soils in Chaouia

Tanji, A.; Taleb, A.

Al Awamia 86: 115-130

1994


ISSN/ISBN: 0572-2721
Accession: 002731738

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Abstract
A weed survey was conducted on tirs soils (deep black soils with 30 and 60% clay) from 1980 to 1987 in the Chaouia semi-arid region of Morocco. One hundred and fifty-eight fields of barley, durum wheat, bread wheat, maize, lentils, broad beans (Cichorium endiva, 73%), furrowed caterpillar (Scorpiurus muricatus, 67%), snapdragon (Antirrhinum majus, 65%), wild mustard (Sinapis arvensis, 62%), and Italian bugloss (Anchusa azurea, 61%). The four most frequently found grass weeds were bermudagrass (Cynodon dactylon, 32%), rigid ryegrass (Lolium rigidum, 26%) canary grass (Phalaris brachystachys, 24%), and sterile oats (Avena sterilis, 20%).