Millet cropping system in relation to weed management and water use mostly boils down to the efficient use of water by the crops to thrive under limited rainfall and facing less competition from weeds for soil moisture. Millets are usually drought resistant so efficient use of every drop of water ensures contribution directly to grain and biomass production.

Weeds as already known compete for sunlight, nutrient, water with crops especially in the early growing stages which can result to yield loss up to 70, 80% if left unmanaged. Effective weeding control ensures less water is lost through transpiration of non productive plants meaning higher soil moisture retention, ensuring millet roots are able to capture more moisture for higher biomass and yield production.

Intercropping with legumes also help conserve soil moisture as experimented in one of our soybean-millet intercrop. The soybean's dense canopy helped suppress the growth of weeds reducing competition and conserving soil moisture.