Q32 of 49 Page 89

Differentiate between compost and vermicompost?

Compost — Compost formation is the process in which farm waste materials like livestock excreta, vegetable wastes, animal refuse, domestic waste, straw, eradicated weeds are decomposed and used as manure.


Vermicompost — The compost prepared from organic matter by using earthworm which hastens the process of decomposition.


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Cultivation practices and crop yield are related to environmental condition. Explain.

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Fill in the blanks:

(a) A total of _____nutrients are essential to plants.


(b) _____and _____are supplied by air to plants.


(c) _____is supplied by water to plants.


(d) Soil supply_____ nutrients to plants.


(e) ____nutrients are required in large quantity and called as____


(f) ____nutrients are needed in small quantity for plants and are called ____

 33

Arrange these statements in 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.

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An Italian bee variety A. mellifera has been introduced in India for honey production. Write about its merits over other varieties.