Questions and Answers
Potash is important for agriculture because it improves water retention, yield, nutrient value, taste, colour, texture and disease resistance of food ______.
crops
The world's largest consumers of potash are China, the United States, ______, and India.
Brazil
Brazil imports ______% of the potash it needs.
90
Potash imports and exports are often reported in ______ equivalent.
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Murate of potash is readily soluble in ______.
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Even though the fertilizer is water soluble, it is not leached during the ______ season.
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Murate of potash is very much important in ______ activities of the plant.
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It is recommended for almost all crops and area. However, in the case of ______ crops like potato, tomato, tobacco etc.
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Potash has wide application to fruit and vegetables, rice, wheat and other grains, sugar, corn, soybeans, palm oil and ______.
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Potash improves the quality-enhancing properties of various ______.
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Study Notes
Collection of Organic and Inorganic Fertilizers
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Compost Manure: Organic matter obtained from decomposed materials, critical for organic farming.
- Requires wet organic matter (green waste) to be heaped for weeks/months.
- Enhanced by aeration, shredding plant matter, and microbial action (worms and fungi).
- Benefits include nutrient release, soil conditioning, and natural pest control.
- Applications in erosion control, land reclamation, and horticulture.
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Goat Manure: Odorless and easier to handle, it contains 22 lbs of nitrogen per ton.
- Acts as a soil conditioner, enhancing soil texture and nutrient availability.
- Improves water efficiency and oxygen levels in soil for plant roots.
- Promotes healthier plant growth and higher crop yields.
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Green Manure: Crops specifically planted to enrich soil fertility.
- Can be planted post-harvest in fall or during crop rotation.
- Acts as a cover crop, preventing topsoil erosion.
- Includes legumes (e.g., alfalfa, clover) which fix atmospheric nitrogen, and non-legumes (e.g., ryegrass, buckwheat).
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Cow Dung Manure: Originates from animal waste; provides nutrients upon decomposition.
- Improves crop productivity and soil physical properties.
- Less concentrated nutrients result in longer residual effects compared to chemical fertilizers.
- Categorized into bulky and concentrated organic manures.
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Poultry Manure: Commonly used as fertilizer, it has high fertilizing value but lower concentration than chemical options.
- Best utilized near farms to minimize nitrogen loss during transport.
- Groundnut cake serves as both livestock feed and manure.
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Neem Cake: By-product from neem oil extraction, rich in essential nutrients (NPK).
- Protects plants against nematodes and promotes soil fertility.
- Beneficial for crops such as paddy, cotton, and sugarcane.
- Enhances organic matter in soil, improving texture and aeration.
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Cotton Cake: Dried cottonseed meal utilized as an organic fertilizer.
- Improves soil texture, moisture retention, and nutrient delivery.
- Suitable for various plants, including flowers and vegetables.
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Nitrogen Fertilizers: Key types include ammonia, ammonium nitrate, and urea.
- Urea contains 46% nitrogen and presents advantages in handling and stability.
- Nitrogen is essential for plant growth, often injected directly into soil.
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Single Super Phosphate (SSP): Contains 16% water-soluble phosphate, essential for pre-land preparation.
- Considered a standard fertilizer for comparison against others.
- Three grades available based on phosphate content: single, dicalcium, and triple superphosphate.
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Murate of Potash: Potassium-rich fertilizer enhancing crop quality.
- Improves water retention and disease resistance in crops.
- Major consumers include China, USA, Brazil, and India; Brazil heavily relies on imports.
- Soluble in water, making it effective even in rainy conditions, suitable for a variety of crops including fruits and grains.
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Description
This project focuses on a comprehensive collection of both organic and inorganic fertilizers. It includes various types of manure such as compost, goat, green, and cow dung, along with other fertilizers like groundnut cake and single super phosphate. Understanding these fertilizers is essential for improving soil health and crop yields.
