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- Although all green plants make their food by photosynthesis, they also need to get nutrients from the soil. These dissolve in water and are taken up by the roots of the plant. The most important plant nutrients are nitrogen (N), phosphorous (P), and potassium (K).
- Chicken flesh and eggs are loaded with cholesterol and animal fats. These contents can cause block in arteries which can lead to heart diseases. The increasing demand of chicken leads to water pollution. Broiler chickens are fed with very high amount of antibiotics, growth hormones and additives.
- Advantages and disadvantages
- It increases crop yield and improves poor quality land.
- Manure improves soil texture, recycles nitrogen and introduces essential bacteria.
- Pasture is improved so animals fatten up quicker.
- Once marshland is drained, fertilisers can help reclaim that land for pasture.
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