To demonstrate that both manure and fertilisers are required for the better growth of plants:- with figure,procedure, observation,and conclusion
Answers
Answer:
Composting is the process of converting plant and animal waste to manure. The farmers dig a pit on the farm, where all organic waste material from the farm (such as cow dung, vegetable waste, weeds, etc) are collected. Then the pit is covered with a thick layer of mud to stop air and water from entering. The pit is left undisturbed for months. Here, the microbes present start decomposing the waste to produce manure. There is also a method of using earthworms for the purpose of composting. Earthworms consume almost all organic matter, which then breaks down in their intestine and produces humus. This process is called vermicomposting or vermiculture.
Manure
Manure is a natural fertilizer. To make manure, decomposition of plants and animal waste is done by farmers. The product of this decomposition is a material rich in organic matter which we call manure. Manure does not have a high content of nutrients. Instead, it gives fertility to the soil by adding humus (an organic component of the soil). This improves the soil’s physical properties, with better retention of moisture and more aeration.
And since manure is made entirely of organic materials it does not contribute to any form of pollution. In fact, it reduces waste on the farm, by decomposing waste materials to make manure.
Fertilizers
Fertilizers are natural or synthetic materials that we add to the soil to provide the plants with the nutrients they need. They can be organic or inorganic in nature. They work by providing plants and crops with nutrients they need to grow to their fullest and at a faster rate than attained via a natural process. Chemical-based fertilizers also act as an insecticide, protecting plants from pests and insects.
Fertilizers are economically very beneficial to farmers. They expedite plant growth and are not very expensive to procure. Fertilizers also increase the yield from a farm. The plants also have a superior appearance i.e. they appear greener and healthier when we use fertilizers.
However, fertilizers can also have a harmful effect on the environment. They contain synthetic chemicals that are not biodegradable. They can cause both soil and water pollution. Over time fertilizers also make the soil acidic in nature causing soil degradation. So between manure and fertilizers, fertilizers are a better source of nutrients for the plant, manure is a better alternative as far as the environment is concerned.
Answer:
Fertilizers are of two kinds natural and chemical, manure is natural fertilizer made from a natural source and both manure and chemical fertilizers are required for the healthy and proper growth of plants.
Explanation:
Fertilizers are generally chemical made while manure is natural fertilizers are the sources of plant nutrition and development. They are rich in Nitrogen, Phosphorus, Potassium, and other nutrients also. Both manure and chemical fertilizers are required for best results in plant and crop production.
Procedure to prepare manure: Collect animal and plant residues in a tank or a container and add some water and soil in it, mix well and leave it in a warm place.
Microorganisms present in the soil decompose the material present in the mix and after 1 to 2 months it becomes ready for use in the farms.
Procedure to prepare chemical fertilizers: Fertilizers are generally prepared in industries by chemical processes by chemical substances and are highly rich in plant nutrients.
Observation: Manure is a natural source of nutrients but they are slow and plants are not able to absorb nutrients efficiently and easily from it on the other hand chemical fertilizers are easily absorbed and have fast results in crop development.
Chemical fertilizers have fast results and are highly used in farming and agriculture for better yield but because they are chemically obtained and after continuous use degrade soil quality and makes land barren and indirectly affect the human and organism consuming it.
Manure is a natural substance and does not adversely affect the soil and human health.
Conclusion: Natural substances are always healthy and do not affect the environment but chemical substance is always harmful.
For sustainable development and to protect our land resources it is essential to make more use of natural fertilizer as compared to chemical fertilizers.
