Question

Eighth question below friends :
In a field, many other undesirable plants grow naturally along with crops and complete for water , nutrients , space and light and this affects growth of the crop.
The undesirable plants are :
A) wheat
B) weeds
C) maize
D) paddy
Any one ☝️

Answer 1

Explanation:

Ans. Weeds are unwanted plants. They grow with crops. They compete for nutrients and water with main cropContinuous growing of crops make the soil poorer in certain nutrients. Therefore, farmers have to add manure to the fields to replenish the soil with nutrients. This process is called manuring. ... Manure is an organic substance obtained from the decomposition of plant or animal wastes.

Answer 2

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The undesirable plants are :

B) Weeds (✓)

MORE INFORMATION:

• weeds are the undesirable plants that grows along with crops and complete for water , nutrients , space and light and this affects growth of the crop.
• So,Farmers remove the weeds before they cause up any damage to crop , manually or by weedicides.
• The manual method : Farmers pluck out every weedicides from the ground before harvesting, so to prevent those weeds to mix up with the desirable crops. They uses various tools to remove the weeds.
• The Weedicides method : Farmers sprinkle or apply a chemical to the crops,which acts up on weeds and kill them, This chemical used to kill the weeds is known as weedicide.
• The various kinds of weedicides includes 2,4 - D , Ethyl ester, Neem extract, Glyphosate.

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