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Alfalfa Weed Control in the Low Deserts of ArizonaThe most effective weed control practice in alfalfa is maintaining a healthy crop and dense stand. Cultural practices that promote a vigorous stand can reduce the need for chemical weed control. Cultural practices that promote a healthy stand reduce the need for chemical weed control, but herbicides are sometimes necessary even in well-managed alfalfa.
Small Grain Growth and DevelopmentGrowing degree days to reach various growth stages in small grains is presented in this publication, as well as the optimum timing of cultural practices relative to crop growth stage.