3. How are manures different from fertilizers? List out the impacts of using fertilizers over and over and how can it be prevented.
Answers
Answer:
Fertilizer is an inorganic chemical synthesized artificially while manure is a combination of inorganic and organic substances obtained naturally by decomposing cattle excreta, plant litter, and human wastes.
Waterway pollution, chemical burn to crops, increased air pollution, acidification of the soil and mineral depletion of the soil are the adverse effects of chemical fertilizers.
Use a fertilizer with slow-release granules.Instead, you'll be able to apply the fertilizer every 6-8 weeks, potentially eliminating 3-4 applications every year. These will also prevent your plants from getting too much fertilizer at once, which can be harmful to their growth and the surrounding soil.
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Answer:
Manures are the organic matter prepared from vegetables peels, and other organic wastes.Whereas, fertilizers are the chemicals prepared in laboratories to provide specific plant nutrients.
Advantages of manure over fertilizers are :-
1.Manure provides soil structure and nutrients to plants whereas fertilizers only provide specific nutrients.
2.Manure is cheaper as compared to fertilizers.
3.Manures don't harm when used in excess but in contrast fertilizers can.
4.Overuse of fertilizers cause soil and water pollution whereas manure doesn't cause any pollution.
5.Manure doesn't cause any harm to the earthworms and other organisms, and increases the water holding capacity of soil.
Prevention of such adverse effects can be done by using fertilizers with small release granules that will decrease the amount of chemicals spread on the plants.