Essay on chemical fertilizers

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Agriculture is the most primitive occupation of the people which mainly needs land to grow different crops for food and as raw materials for different industries. Industrial use of agriculture for supplying raw materials came much later. Originally land was used for agriculture to supply food for human beings by the use of organic manures particularly animal dung. At the beginning land was used in its natural form to grow food. Land contains natural humus that supplies nutrients for crop. But people began to think that natural fertility of land cannot supply sufficient food crops for human to survive.

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Introduction A fertilizer is a chemical substance or a natural substance added to soil to increase its nutrients content. Fertilizers replenish the soil with nutrients that have been depleted. There are two types of fertilizers which include: Organic and Inorganic Fertilizers. Organic Fertilizer is derived from animal manure and vegetable scraps or remains. Inorganic Fertilizers are artificially produced in a chemical laboratory to contain a certain percentage of nutrients, mainly nitrogen, phosphorus and potassium, which plants require for growth. Each plant roots are specific at absorbing the nutrients.

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A chemical fertilizer is defined as any inorganic material of wholly or partially synthetic origin that is added to soil to sustain plant growth. Organic fertilizers are substances that are derived from the remains or byproducts of natural organisms which contain the essential nutrients for plant growth. A chemical fertilizer is defined as any inorganic material of wholly or partially synthetic origin that is added to the soil to sustain plant growth.
Please join StudyMode to read the full document. Understanding the Two Types Organic fertilizers are made from naturally occurring substances, and include by-products or waste remains of the animals. Dead plants and dead animal remains are also often used as fertilizers in organic farming. They are naturally chemical -rich and contain high amounts of nitrogen, phosphorus and potassium NPK. The main difference between a chemical and an organic fertilizer is that the former come out of a lab and the organic one comes from living beings.
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