Most garden soil organically produced, and particularly the garden soil need not be the extremity of sterilization. However, in some cases, such as nematode infestation, it may be desirable to completely sterilize soil. The main detriment to this, whether naturally or chemically, is that they are beneficial soil organisms to kill. However, depending on certain circumstances, it may be necessary. & # 13; Itâ? ? s almost impossible for all the weed seeds, diseases, nematodes and insects to be removed. And especially organically or naturally. However, it is possible, the population of most to just a few easy to cut, by the heat of the sun in the hottest part of summer use. That is, in most climates. IA? ? ll explain more later on. & # 13; In the hottest part of summer, usually of the July or August, itâ? ? s possible, ground temperatures about four inches deep to over 120 degrees using the free plastic film with you. Simply digging up or fertilizer in the surface soil as deep as you can get him. The fertilizer helps to generate heat. & # 13; First, moisten the area and cover with the free plastic sheeting. Keep the cover on the ground and make sure that all edges are firmly packed with dirt covers or otherwise held down. This is an oven in general since the soil temperature is often above 120 degrees produces. This is usually "cook" the greatest percentage of adverse soil problems. Includes maintenance and moist for at least four weeks. & # 13; In colder climates, where even summer temperatures dona? ? t get very high, itâ? ? s possible that this method really some seeds to germinate and help unwanted soil diseases multiply. They generally cause a cozy atmosphere with greenhouse temperatures for good germination. & # 13; On a small, you can have better success and all the unwanted diseases, weeds, nematodes, insects, and perhaps eliminated. The Place of the black soil in pots, and moisten with the free plastic cover produce solid ground temperatures above 150-160 degrees. Keep covered for two weeks and make sure it remains moist. Not much can live where. & # 13; Again keep in mind that this also beneficial soil organisms to kill. However, the compromise might be necessary. And you can the structure of the soil over time, converted by using lots of organic products to add to the soil.