31. Nitrogen fixation increased by
32. Plant available water is
33. The normal form of plant is maintained by
34. In stress condition, Leaf water potential
35. Which one of the following is composite variety of maize?
36. Deficiency symptoms of which nutrient appear on apical buds?
37. Sodium ion causes dispersion of clay because
38. Indicate the percentage of irrigated area in India.
39. The seed rate of potato is
40. Direction of Stevenson Screen in Northern hemisphere should be
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