Q501
Open questionWith increasing water content, Thermal Conductivity of soil
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Soil Science
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Q502
Open questionFather of Soil Taxonomy is
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Q503
Open questionFertiliser use is profitable if each rupee spent on fertiliser produces crop worth at least
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Q504
Open questionThe carbon dioxide percentage in the soil air is
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Q505
Open questionWho considered the father of pedology
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Q506
Open questionStrength of DTPA extract used for micronutrient analysis is
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Q507
Open questionWhich one is more accurate method of determination of soil texture?
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Q508
Open questionWhich of the following is a non-silicate mineral?
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Q509
Open question'Lichens' are association between
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Q510
Open questionGrass tetany is caused by deficiency of . . . . . . . . in forage crops
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Q511
Open questionWhich of the following elements is not major nutrient element?
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Q512
Open questionFertilizer control order issued in
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Q513
Open questionActinomycetes are mainly
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Q514
Open questionMatch the following columns:
| Column I (Methods of measuring soil moisture) | Column II (Useful range kpa) |
| a. Tensiometer | 1. 0 to < -1500 |
| b. Resistance blocks | 2. 50 to < -10000 |
| c. Neutron scattering | 3. -100 to< -1500 |
| d. Pressure membrane apparatus | 4. 0 to -85 |
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Q515
Open questionHow much farmyard manure is required for obtaining 60 kg nitrogen for a crop?
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Q516
Open questionLignins mainly decomposed by
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Q517
Open questionThe concept of pH is suggested by the scientist
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Q518
Open questionThe space between fertiliser stacks and walls for should be about
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Q519
Open questionMatch the following columns:
| Column I (Fertilisers) | Column II (N Content %) |
| a. CAN | 1. 82 |
| b. Anhydrous ammonia | 2. 25 |
| c. Urea | 3. 33 |
| d. Ammonium nitrate | 4. 46 |
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Q520
Open questionMatch the following columns:
| Column I (Bacteria) | Column II (Functions) |
| a. Nitrobacter | 1. Fixation of atmospheric nitrogen |
| b. Ammonifying bacteria | 2. Formation of NH4+ nitrogen |
| c. Denitrifying bacteria | 3. Formation of NO3- |
| d. Rhizobium sp. | 4. Formation of N2 |
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