The multiple layers of the Lollaland Foam Play Mat makes it a perfect place for your child to safely play. This easy-to-clean and water-resistant mat is reversible, with a unique design on each side. The multiple layers of the Lollaland Foam Play Mat makes it a perfect place for your child to safely play.
Many farmers choose to use chemicals to keep weeds and pests from destroying their crops and to add more nutrients to the soil. There are three different kinds of pesticides; herbicides, insecticides and fungicides.All three of these pesticides are used to kill different kinds of pests that can be found on a farm.Farmers that make the decision not to use any chemicals are called organic farmers. 1  Plants need nutrients in order to grow on a farm. 2  Nutrients such as carbon, oxygen and hydrogen are always available to the plants.armers that make the decision not to use any chemicals are called organic farmers. 1  Plants need nutrients in order to grow on a farm. 2  Because insects make up 3/4 of all species on earth, they can be a big problem on a farm. 3  One of the biggest concerns for farmers is weed control.
Herbicides have also been used in warfare and conflict. Modern herbicides are often synthetic mimics of natural plant hormones which interfere with growth of the target plants. The term organic herbicide has come to mean herbicides intended for organic farming. Some plants also produce their own natural herbicides, such as the genus Juglans (walnuts), or the tree of heaven; such action of natural herbicides, and other related chemical interactions, is called allelopathy.