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Manure : Preparation & Classification - Crop Production & Management, Science, Class 8 Video Lecture

FAQs on Manure : Preparation & Classification - Crop Production & Management, Science, Class 8 Video Lecture

1. What is manure and why is it important in crop production?
Ans. Manure is organic matter that is obtained from decomposed plant or animal waste. It is important in crop production as it provides essential nutrients to the soil, improves soil fertility, and promotes healthy plant growth.
2. How is manure prepared?
Ans. Manure can be prepared through a process called composting. In composting, organic waste such as crop residues, animal dung, and kitchen waste is piled up and allowed to decompose. Regular turning and mixing of the pile helps in the breakdown of organic matter and the formation of nutrient-rich manure.
3. What are the different classifications of manure?
Ans. Manure can be classified into two types: organic manure and inorganic manure. Organic manure is derived from natural sources such as animal dung, crop residues, and green manure. Inorganic manure, on the other hand, is prepared synthetically through chemical processes and includes fertilizers like urea, ammonium nitrate, and superphosphate.
4. How does manure contribute to sustainable agriculture?
Ans. Manure contributes to sustainable agriculture in several ways. Firstly, it helps in recycling organic waste, reducing the need for disposal in landfills and preventing environmental pollution. Secondly, it improves soil structure, water-holding capacity, and nutrient availability, leading to better crop growth. Lastly, the use of manure reduces the dependence on chemical fertilizers, thus minimizing the negative impact on the environment.
5. What are the advantages of using manure over chemical fertilizers?
Ans. Using manure has several advantages over chemical fertilizers. Manure releases nutrients slowly and over a longer period, providing sustained nourishment to plants. It also improves soil structure, aeration, and water retention capacity. Furthermore, manure contains organic matter that enhances soil fertility and microbial activity. In contrast, chemical fertilizers can lead to nutrient imbalances, soil degradation, and environmental pollution if not used properly.
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