Abstract Background The direct seeding system can be an alternative to reduce costs and labor in onion production, as it does not require the steps of production and transplantation of seedlings. However, this system results in early weed interference, lengthening the critical period of interference prevention. Objective To evaluate the selectivity of herbicide applications with residual activity on onions. Methods Three studies were carried out in a greenhouse. The first was carried out in a 5 x 4 factorial scheme, […]

Metribuzin is an herbicide widely used in the control of weeds in crops such as soybean, potato and tomato. However, there is suspicion of intoxication in crops cultivated in succession due to the residual effect of the product in the soil. As such, our goal was to evaluate the residual effect of metribuzin in the soil on the growth of garlic, onion and beans plants. Three experiments were conducted in a greenhouse, in a randomized block design, with four replications. Each experiment […]