Q14 of 465 Page 54

Fill in the blanks:

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


(b) .....are supplied by air to plants.


(c) .... is supplied by water to plants.


(d) Soil supplies 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 ......

(a) 16


Thes are termed as micro and macro nutrients.


(b) Oxygen and Light


These two nutrients are essential for the plants for their growth.


(c) Hydrogen


It issupplied in soluble form to plants through their roots


(d) 13


13 nutrients are provided by plants through soil. They are majorly nitrogen, phosphorus, potassium, calcium, magnesium and sulfur.


(e) 6, Macronutrients


They are required in large quantities by plants.


(f) 7, Micronutrients


They are required in small quantities by plants for their growth.


More from this chapter

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12

Fill in the blanks:

(a) Photoperiod affect the ...of plants.


(b) Kharif crops are cultivated from to


(c) Rabi crops are cultivated from .... to .....


d) Paddy, Maize, Green Gram and Black gram are ...Crops.


(e) Wheat, Gram, Pea and Mustard are ....crops.

 13

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

 15

Differentiate between compost and vermicompost.

 16

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 plants are used.


(c) plants are ploughed and mixed in soil


(d) After decomposition, it becomes green manure.