MCQs: The bacteria considered most important to bring about the conversion of NH4 to NH2:
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MCQs: The bacteria responsible for fixation of nitrogen in soyabean are:
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MCQs: The best estimate of the available P in phosphatic fertilizers is obtained from the:
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MCQs: The biological method for determining defidency of lime, P and K is:
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MCQs: Which one of the following concentrated organic manures has maximum P2O5 content?
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MCQs: The C.E.C. of illite is about:
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MCQs: The C.E.C. of mica is about:
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MCQs: The C:N ratio in the organic matter of the furrow slice (upper 15 cm) of arable soils commonly ranges from?
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MCQs: The capacity of soils to be moulded, that is to change shape in response to stress and peep that shape when stress is removed is termed as:
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MCQs: The carbon nitrogen ratio in cultivated soil is stabilized as:
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MCQs: The cation, which competes with ammonium during fixation, is:
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MCQs: The CEC of kaolinite clay varies between:
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MCQs: The cellulose content in humus is about:
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MCQs: The characteristics of surface soil, which have important, bearing in soil management and crop production, is known as:
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MCQs: The choice of a chemical amendment may be influenced by the _______ required for reaction in the soil:
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MCQs: The colloidal surface area in the upper 15 cm of a hectare of a clay soil could be as high as km.
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MCQs: The concentration of CO2 in the soil increases after the rains, probably because of:
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MCQs: Gypsum is also called as:
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MCQs: The concept of soil as a natural body was first developed by:
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MCQs: The conditions responsible for the formation of salt affected soil is:
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