Question

what are disadvantage in using chemical fertilizers

Answer 1

Disadvantages of Organic Fertilizer: Microorganisms are required to break down and release nutrients into the soil. ... Nutrient ratios are often unknown, and the overall percentage is lower than chemical fertilizers. However, some organic products are actually higher in certain nutrients.

Answer 2

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Chemical fertilizers affect micro-organisms living in the soil.

Chemical fertilizers are highly soluble in water hence they leach away into groundwater without fully benefiting the plant.

Chemical fertilizers encourage plant disease.

While the fertilizers help a plant to grow, they do not do much for the soil.