31. Cellulose degraders are
32. The tension of the water at the upper plastic limit is equivalent to pF value
33. Plant nutrient critical for nitrogen fixation in legumes is
34. Fertilisers containing free acid should be packed in
35. Average density (Mg/m3) of earth crust is
36. H2S gas produced in rice field has . . . . . . . . effect on availability of P.
37. Chemical used to check the volatilization loss of N from compost pit
38. Available water holding capacity is maximum in
39. K release is more from
40. Aspergillus niger is used to test the status of which element in the soil
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