Question

what are the various ways in which we protect crops from weeds or pests ​

Answer 1

Pesticide-based approaches such as herbicides, insecticides and fungicides. Biological pest control approaches such as cover crops, trap crops and beetle banks. Barrier-based approaches such as agrotextiles and bird netting. Animal psychology-based approaches such as bird scarers.

Answer 2

Answer:

There are many ways you can make sure your farm is weed free for example:

1) You could decide to hand pick them even if it will take some time

2) You could also decide to engage in crop rotation some particular weeds feed on particular vegetables and crop rotation is all about changing the places you plant your crops you could plant onion here and decide to plant it another place. If the weed comes it will see there is no onion and eventually die out of no food.

3) You could also use pesticide to spray the farm with. This helps to get rid of pests and also weeds.

These are not the only ways just to name a few though.