Integrated Weed Management Offers No-Till Producers a Way to Cut Herbicide Use

A long-term study conducted by Penn State researchers showed that it’s possible for no-till producers to cut their herbicide use by practicing integrated weed management. Over nine years, researchers tested herbicide-reduction practices in a dairy crop rotation. Their published results showed that practices such as banded herbicide, seeding small grain, and tilling every six years could allow producers to reduce herbicide use. Although weed biomass was greater without herbicide in corn and soybean crops, it did not affect yield, and the weed biomass declined during the alfalfa rotation. One researcher explained that they concluded, “herbicide reduction is viable provided there is a diverse rotation with a broad array of control methods.”