It's important to remove waste product that will not decay inside the soil. Waste product like nylon, container, canter, rubber, fabrics, leather, and other materials will never decay inside the soil no matter how many years. I make sure I remove this type of material from the soil before I can plant any crops. No crops or plant can survive wear waste product mentioned above are packed and even if it germinated and grow the crop will not produce big farm products during harvesting.
The best time to remove waste product I mentioned above is during the clearing of the grass and cultivation. When clearing grasses or weeding I make sure I remove those wasted products. How I do it is that I use a Cutlass and rake to weed and at the process of weeding the Cutlass usually hit most the nylon and container which I'll use rake to remove. During cultivation I also make sure I remove nylon, container, rubber, leather, and many more from the soil using my hand.
A lot of people are used to disposing their waste product inside the bushes and sometimes even inside already farmland. Such products stays there for years and during the time for planting the farmer may not have all the time to remove such waste as soil may have already covered them. It's important to let people living near our farmland to be informed not to throw their unwanted waste product inside the farm as they're harmful to our farmland.
We can prevent people from disposing their unwanted waste product from entering inside our farmland by using a rope, net, or even woods to cover our farmland where people can no longer have access to
Rain is another thing that carries unwanted waste product inside our farmland through flooding. To counter this farm attack by flooding a drainage is important.
Unwanted waste product I mentioned above reduce the soil nutrients which why when farming we must remove them.