Crop Production And Management Class 8 Science Protection From Weeds ️ class: 8th ️ subject: science ️ chapter: crop production and management ️ topic name: protection from weeds ️📚👉 next video:. Ncert solutions for class 8 science chapter 1 crop.
Protection From Weeds Class 8 Science Ch 1 Crop Production Removal of weeds is called weeding. it is done because these weeds compete with main plants for water, nutrient, space and light. weeding is done by following methods. using chemicals called weedicides. removing weeds by hands. removing weeds by khurpi. Answer. (a) the same kind of plants grown and cultivated on a large scale at a place is called crop . (b) the first step before growing crops is preparation of the soil. (c) damaged seeds would float on top of water. (d) for growing a crop, sufficient sunlight and water and nutrients from the soil are essential. The manual removal includes physical removal of weeds by uprooting or cutting them close to the ground, from time to time. this is done with the help of a khurpi. a seed drill [fig. 1.2(b)] is also used to uproot weeds. weeds are also controlled by using certain chemicals, called weedicides, like 2,4 d. 1.04 adding manure and fertilisers. 05 irrigation. 1.05 irrigation. 06 protection from weeds and harvesting. 1.06 protection from weeds and harvesting. 07 storage and food from animals. 1.07 storage of foodgrains and food from animals. chapter 1 crop production and management – test. 02 microorganisms friend and foe.
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