HIGHLIGHTS Saline stress did not affect the initial growth of the cowpea crop. The use of mulch provides better morphological results in the cowpea crop. Vegetal mulches as soil protection (sugarcane bagasse and bamboo straw) attenuated effect of salts on gas exchange of cowpea.
RESUMODevido seu valor nutricional, o feijão-caupi vem destacando um papel importante na alimentação humana. Mas a interferência causada pelas plantas daninhas, afeta a produtividade da cultura, devido a competição que se estabelece ao longo do ciclo. Neste trabalho, o período anterior a interferência (PAI), período total de prevenção à
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