Hemp, the wonder crop

Weed control in hemp farming In general, weeds in hemp production are not a really big issue. This is because hemp grows rather fast and if put under the right conditions, hemp covers the ground shade with 90% in 3-4 weeks from planting hereby suppressing almost all the weeds. The key is to plant hemp early as soon as the soil is warm enough for the hemp to grow (Hemp University) Moreover, hemp is even used as a weed killer on fields over a hundred years. “Very few of the common weeds troublesome on the farm can survive the dense shade of a good crop of hemp… In one 4-acre field in Vernon County, Wis., where Canada thistles were very thick, fully 95 per cent of the thistles were killed…” — Lyster Dewey, Hemp. USDA Yearbook of Agriculture, 1913. “Hemp grows quickly, soon covers the ground and chokes out the weeds. So weed control is not necessary.” — Eddy A. A. de Maeyer. 1994 1 Because of the competitiveness of hemp with weeds, the chemical input need for herbicides is also...