High yields depend on a number of factors that are related to soils, weather, seeds, inputs and management practices. There is a general belief that yields from organic farms are less than those obtained from conventional farms that use chemical inputs. However, there are many cases where a good variety gives the same level of yields in both Organic and conventional farms.While everything that is used in organic farms can be also used in conventional farms, there are a few things that are forbidden for use in organic farms. Organic farms primarily differ from conventional farms in at least three key components: 1. Synthetic nitrogenous fertilizers 2. Synthetic chemical pesticides and 3. GM varieties. Genetically modified (GM) varieties are forbidden in organic farming. Organic farms can use mineral sources of potassium, phosphorous and micronutrients, with the main source of nitrogen obtained from legume plants, manures and composts.
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