question_answer3) Group the following and tabulate them as energy yielding, protein yielding, and oil yielding and fodder crop. Wheat, rice, berseem, maize, gram, oat, pigeon gram, sudan grass, lentill, soyabean, groundnut, castor and mustard.View Answer play_arrow
question_answer4) Arrange these statements in correct sequence of preparation green manure. Green plants are decomposed in soil. (b) Green plants are cultivated for preparing manure or crop pig parts are used. (c) Plants are ploughed and mixed into the soil. (d) After decomposition it becomes green manure. [NCERT Exemplar]View Answer play_arrow
question_answer5) What would happen if poultry birds are larger in size and have summer adaptation capacity? In order to get small-sized poultry birds having summer adaptability, what method will be employed? [NCERT Exemplar]View Answer play_arrow
question_answer6) Figure shows the two crop fields [plots A and B] have been treated by manures and chemical fertilisers respectively, keeping other environmental factors same. Observe the graph and answer the following questions. (i) Why does plot B show sudden increase and then gradual decrease in yield? (ii) Why is the highest peak in plot A graph slightly delayed? (iii) What is the reason for the different pattern of the two graphs? [NCERT Exemplar]View Answer play_arrow
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