Herbicide Effect on Weed Flora under Conservation in Zimbabwe

Herbicides are chemicals used to manipulate or control undesirable vegetation. Hand hoe is the method of removing weeds by hand. Crop rotation is the practice of planting different crops sequentially on the same plot of land to improve soil health, optimize nutrients in the soil, and combat pest and weed pressure. Crop rotation is able to control weed growth and can be combined with chemicals and hand hoe. This allow to reduce the use of chemical herbicides.
http://dx.doi.org/10.1016/j.cropro.2014.08.008