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Natural and Synthetic Fertilizers Help Restore Soil Fertility
====__**Compost-**__ is decaying organic matter that animal manure, food scraps, or plant material. When soil loses its plant nutrients to crops that have been harvested and to leaching, it loses fertility. Farmers add fertilizers to their soil, which is a replacement source for all of the kost nutrients.====

Mineral fertilizers were used in the past just as they came from the ground. Today chemists found out they need to mix minerals to keep man different formulations.
====__**Straight fertilizer-**__ is a fertilizer that contains only one nutrient. __**Mixed fertilizer-**__ is a fertilizer containing a mixture of the three most essential nutrients. They're graded by //6-12-12//. Organic bulks help keep the soil lose for aeration. Also serves for food for beneficial organisms that live in the soil. Fertilizers are rated by the percentage of nitrogen, posphorus, and the potassium they contain.====







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