21. Atrazine used as an antitranspirant
22. . . . . . . . . is used to treat seed potato to break dormancy.
23. Recovery of sugar in sugarcane crop in India is
24. Which one of the following is the principle 'Nitrogen' fixing algal community of blue-green algae?
25. The total volume of water on melting of ice
26. In field capacity, the water held at a tension of
27. The insect bollworm is commonly found on
28. For summer soybean, seed rate should be . . . . . . . . than that of kharif planting.
29. Optimum seed rate of tobacco is (kilogram/hectare)
30. The studies of plants in relation to soil and climate is called
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