The smaller the crop the less it is able to survive competition. At least two weedings are necessary for effective weed control. Herbicides can also be used for weed control
Chimanga ching'onoching'ono chimavutika kupilira kutchire. Palani tchire kosachepera kawiri kuti muthane ndi tchire. Mankhwala ophera tchire akhoza kugwiritsidwa ntchito pothana ndi tchire