Which one is the most important among Amphibloes
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Sources of negative charges on silicate clays is/are
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The most important nutrient for oil production is
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The most conspicuous chemical change that take place when soil is flooded is reduction of
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Olivine is the good source of
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A soil with 20 me/100g CEC and 5 me/100g exchangeable H will have a base saturation of
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Sodium adsorption ratio (SAR) can be calculated by using of formula
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On an average 1 kg N, P2O5, K2O is added to increase grain yield by
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Potash Feldspar releases less amount of K, because
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Who consider the various properties of soils in relation to plant production
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The P2O5 in all fertilisers comes from
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Apparent nutrient recovery (ANR) can't calculated by using of which formula
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Molybdate reagent is used for estimation of
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Problem of soil crusting is prevalent in . . . . . . . . soils.
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Among primary minerals, most resistant to weathering is
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Zn-equivalent' is related with
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Lignin decomposing fungi are
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A soil, which has pH ranges from 8.5 to 10 and ESP is greater than 15 and EC less than 4 m mhos/cm, the soil is called
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Vesicles & Arbuscles are found in which Mycorrhizae?
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A soil profile having two sola, one above the other is known as
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