Differentiate between natural and chemical fertilisers.
Answers
Answer:
Fertilizers fall into two general categories: organic, or natural, and inorganic, or chemical. ... Natural fertilizers are those formed through decomposition, while chemical fertilizers are manmade or mined. Natural fertilizers improve the texture of the soil and increase the amount of beneficial microorganisms.
Explanation:
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Answer:
Chemical Fertilizer Organic Fertilizer
NPK Ratio 20 to 60% About 14%
Example Ammonium sulfate, ammonium phosphate, ammonium nitrate, urea, ammonium chloride and the like. Cottonseed meal, blood meal, fish emulsion, and manure and sewage sludge, etc.
Advantages Chemical fertilizers are rich equally in three essential nutrients that are needed for crops and always ready for immediate supply of nutrients to plants if situation demands. Adds natural nutrients to soil, increases soil organic matter, improves soil structure and tilth, improves water holding capacity, reduces soil crusting problems, reduces erosion from wind and water, Slow and consistent release of nutrients.
Disadvantages Several chemical fertilizers have high acid content. They have the ability to burn the skin. Changes soil fertility. Have slow release capability; distribution of nutrients in organic fertilizers is not equal.
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Rate of production Immediate supply or slow release Slow release
About Chemical fertilizers are manufactured from synthetic material Organic fertilizers are made from materials derived from living things.
Preparation Artificially prepared. Prepared naturally. One can prepare organic fertilizers, themselves or can also buy.
Nutrients Have equal distribution of three essential nutrients: phosphorous, nitrogen, potassium. Have unequal distribution of essential nutrients.
Cost Chemical fertilizers turn out to be cheaper because they pack more nutrients per pound of weight. Organic fertilizer may be cheaper per pound but works out to be more expensive over all because more of it is needed for the same level of nutrients.
Detailed comparison continued below.