Question

How are the organic wastes from homes and agricultural fields utilised?​

Answer 1

Answer

Composting is an alternative for recycling biodegradable organic waste, transforming it into organic fertilizer that can be used as agricultural nutrients, avoiding its disposal in landfills. This study evaluated the composting of household organic waste as a substitution for cattle manure, with a view to its application in the fertilization of cherry tomatoes (Solanum lycopersicum Mill., Var. Cesariforme). Thus, compost piles were set up using 30% organic waste (carbon source) and 70% tree-pruning residues (filling material). Two sources of organic waste were tested: household food waste (FW) and cattle manure (CM), at five proportions (15% FW + 15% CM, 10% FW + 20% CM, 20% FW + 10% CM and the controls 30% CM and 30% FW). After 90 days, the mature compost from each pile was mixed with coconut fibre in a 1:1 ratio and used as substrate filled in 15 L plastic pots, where the cherry tomato plants were grown. The experiment was conducted under greenhouse conditions in a randomized block design, with five treatments and five replicates. Assessments of growth and leaf mineral composition were performed for the cherry tomato plants. The results indicate that cattle manure can be replaced by household food waste as the organic material used in compost piles. Fertilization with organic compost from household food waste positively influenced the growth and nutrient assimilation in the leaf tissue of cherry tomato.

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Answer 2

Conclusion

BIODEGRADABLE WASTE

Biodegradable waste is a form of trash that may be decomposed by other living creatures and is often derived from plant or animal sources. Green garbage, food waste, paper waste, and biodegradable plastics are all examples of biodegradable waste found in municipal solid waste.

Main Content.

Composting is an alternative to landfill disposal for recycling biodegradable organic waste by converting it into organic fertilizer that can be utilized as agricultural fertilizers. This study looked at composting domestic organic waste as a substitute for bovine manure, with the goal of using it to fertilize cherry tomatoes (Solanum Lycopersicon Mill., Var. Cerasiforme). As a result, compost piles were constructed with 30% organic waste (carbon source) and 70% tree-pruning residues (filling material). Household food waste (FW) and cow manure (CM) were examined in five proportions (15% FW + 15% CM, 10% FW + 20% CM, 20% FW + 10% CM, and the controls 30% CM and 30% FW). After 90 days, the mature compost from each pile was mixed in a 1:1 ratio with coconut fiber and utilized as substrate in 15 L plastic pots where cherry tomato plants were cultivated. The study was carried out in a greenhouse using a randomized block design with five treatments and five repetitions.

The cherry tomato plants' development and leaf mineral content were evaluated. The findings suggest that domestic food waste can replace bovine manure as the organic material utilized in compost piles. Fertilization with organic compost made from home food waste improved development and nutrient uptake in cherry tomato leaf tissue.

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