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प्रश्न
Differentiate between compost and vermicompost?
उत्तर
Compost:
- Compost is prepared from farm and town refuse such as vegetable and animal refuse, faecal matter of human beings, weeds, straw, rice husks, forest litter, etc. It is a biological process in which both aerobic and anaerobic microorganisms decompose the organic matter.
- It takes about 3 to 6 months for decomposition of organic refuse.
Vermicompost:
- Vermicompost is the degradation of organic waste through the consumption by earthworms.
- It takes about 1-2 months to prepare a vermicompost.
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संबंधित प्रश्न
Find out the correct sentence about manure
- Manure contains large quantities of organic matter and small quantities of nutrients.
- It increases the water-holding capacity of sandy soil.
- It helps in draining out an excess of water from clayey soil.
- ts excessive use pollutes the environment because it is made of animal excretory waste.
Soil supply ______ nutrients to plants.
______ nutrients are required in large quantity and called as ______.
Differentiate between compost and vermicompost?
Arrange these statements in the correct sequence of preparation of green manure.
(a) Green plants are decomposed in soil.
(b) Green plants are cultivated for preparing manure or crop plant parts are used.
(c) Plants are ploughed and mixed into the soil.
(d) After decomposition it becomes green manure.
Photosynthesis requires chlorophyll, and a few other raw materials. Add the missing raw materials to the list given below: Water, minerals, (a)_____________, (b)______________.
A goat eats away all the leaves of a small plant (balsam). However, in a few days, new leaves could be seen sprouting in the plant again. How did the plant survive without leaves?
Sunlight, chlorophyll, carbon dioxide, water and minerals are raw materials essential for photosynthesis. Do you know where they are available? Fill in the blanks with the appropriate raw materials.
- Available in the plant: _______________
- Available in the soil: _______________, _______________
- Available in the air: _______________
- Available during day: _______________
Wild animals like tigers, wolves, lions and leopards do not eat plants. Does this mean that they can survive without plants? Can you provide a suitable explanation?
