Vidyalelo
Agriculture · all questions

Soil Science
practice.

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PLFA is used to measure

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With increase in soil depth, CO2 content . . . . . . . .

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Total porosity of a soil with 1.325 g/cc and 2.65 g/cc PD is

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In complex 12-32-16 each granule has

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Keys to Soil Taxonomy came in the year of

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Who is considered as father of soil testing

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Leghaemoglobin percent in the root nodules of leguminous plants helps in nitrogen fixation by

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Which one of the following is commonly used as urease inhibitor

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Which of the following soils have poor physical condition

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Press Mud is a byproduct of which industry?

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In plants, deficiency of Zn are usually associated with concentrations of less than . . . . . . . .

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Bar is equal to

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Strength of laboratory HCl is

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. . . . . . . . is the ratio of the increase in osmotic pressure produced by the fertilizer to that produced by the same weight of sodium nitrate (NaNO3)

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Near the canal banks soil become

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Which formula is applied to calculate gypsum requirement (meq/I00gm)

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The dominant spectral colour in soil indicates

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Complex fertilisers contain more than one major nutrient in a

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Allophane, Imogolite are . . . . . . . . in origin.

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Who established the essentiality of Fe for plant in 1844

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