Question

plants like wild oats,grass need to remove from the crop fields.why.it is urgent

Answer 1

because if they r not removed than they take up the nutrients and food which is essential for the growth of plant and there is lack of nutrients in the food plant .
secondly as they r wild they may contain any type  of toxic substance and if it is eaten by a human it can cause problem .

Answer 2

these r weeds nd may have bad effect on the main crops