Q441
Open questionEarthworm cast is rich in which nutrient?
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Soil Science
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Q442
Open questionFor saline-sodic soils EC, ESP & pH values are
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Q443
Open questionThe purpling along the leaf edges is the characteristic deficiency symptom of
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Q444
Open questionA soil which has pH < 8.5, ESP < 15 and EC > 4 dSm-1 at 25°C is called
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Q445
Open questionWhich one of the following is not correctly matched in the term of Soil order and Pronunciation?
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Q446
Open questionFlame photometer is used in the determination of
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Q447
Open questionThe behaviour of the plant in relation to day length is termed
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Q448
Open questionAmong the following, the correct sequence of biotic biopolymer degradation pathway is
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Q449
Open questionBrowning disease of rice is a
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Q450
Open questionLimonite is the source of
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Q451
Open questionMatch the following columns:
| Column I (Rocks) | Column II (Examples) |
| a. Primary mineral | 1. Quartz |
| b. Clay mineral | 2. Sandstone |
| c. Sedimentary rock | 3. Marble |
| d. Metamorphic rock | 4. Illite |
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Q452
Open questionAt constant prices of fertiliser and crop, net returns can be increased by
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Q453
Open questionMuriate of potash contains
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Q454
Open questionIn 'Water drop method' the diameter of water drop should be
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Q455
Open questionAvailability of soil water to plants is maximum at
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Q456
Open questionSulphur content in Gypsum is
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Q457
Open questionA soil gets its cation exchange capacity from clay and
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Q458
Open questionHeight of rise of water in a capillary tube is directly proportional to
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Q459
Open questionDi-ammonium phosphate contains
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Q460
Open questionSolum is made up of
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