Q33 of 103 Page 20

How do weeds affect the growth of crops?

Weed compete with the crop plants for water, nutrients, space and light. Thus, they affect the growth of crops.


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32

Out of drip system and sprinkler system of irrigation, which one is more suitable :

(a) for uneven land?


(b) for sandy soil?


(c) for watering fruit plants ?


(d) where availability of water is poor?

 33

What are weeds? Name any one weed found in a crop field.

 34

Explain how, the irrigation requirements depend on the nature of the crop.

 35

Explain how, the irrigation requirements of a crop depend on the nature of soil in which the crop is grown.