as an adjuvant along with weedy check in maize sown at 60 and 75 cm row spacing. Alkyl ether sulphate increased weed control efficacy (13-35%) of the pre-mixed herbicide. Herbicide along with adjuvant provided effective weed control at 60 cm as compared to 75 cm apart sown maize. The most effective control of weeds, and increase in maize grain yield (33-45% as compared to non-treated control) and net income were obtained by the pre-mixed herbicide at 539.4 g a.i. ha -1 (75% of recommended rate) with adjuvant and pre-mixed herbicide at 719.2 g a.i. ha -1 (recommended dose) without adjuvant. The results revealed that the rate of pre-mixed herbicide can be reduced by up to 25% of the recommended field rate by the addition of alkyl ether sulphate as an adjuvant at 60 cm row spacing of maize to increase maize yield and net income.Keywords: alkyl ether sulphate, economic analysis, integrated weed management, narrow row maize, reduced herbicide dose, weed control efficiency. Palavras-chave: alquil éter sulfato, análise econômica, manejo integrado de plantas daninhas, cultura de milho com espaçamento entrelinhas estreito, redução da dose de herbicida, eficiência de controle de plantas daninhas. RESUMO -Nas culturas agrícolas, o espaçamento entrelinhas e os adjuvantes desempenham um papel importante para a redução do custo do herbicida e dos danos ambientais através da redução da dose dos herbicidas aplicados. Foi conduzido um estudo de campo para avaliar o impacto de dois espaçamentos entrelinhas e da redução das doses de herbicidas juntamente com o adjuvante em

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