Soil Fertility One Liner Questions
Soil Fertility Questions For Agricultural Exams
ICAR-JRF, SRF, ARS/NET, SAU, PhD, IFFCO, NFL and Others Competitive Exam
Subject:- Soil Science
Special 30 One Liner Questions
| Questions | Answers | |
| 1 | 100 kg nitrogen equal to urea? | 222 kg |
| 2 | 82% of N requirement of the crops in India is supplied by? | urea |
| 3 | 95 to 99.5% portion of plant tissues are made up of? | C, H and O |
| 4 | About 64 % of ammonia produced in the world is from? | natural gas |
| 5 | About 70 % of Mg is associated with anions such as? | Malate and citrate |
| 6 | Acid soils favorable to? | P fixation |
| 7 | Acid tolerant crop is? | Rice |
| 8 | Addition of small amounts of starter N increase? | N fixation |
| 9 | After reclamation of sodic soils the major nutrient which becomes deficient is? | Phosphorus |
| 10 | Alkaline permanganate method is used for estimation of? | Available N |
| 11 | Amendment (सुधार) of Alkali soil using by? | Gypsum |
| 12 | Amendment of saline soil using by? | Pyrite |
| 13 | Amid form of N fertilizer? | Urea |
| 14 | Amide fertilizers or Organic fertilizers? | Urea and calcium |
| 15 | Ammonia is soluble in water up to 30% by weight and containing 24 per cent nitrogen called? . | Aqua ammonia |
Soil Fertility
| Questions | Answers | |
| 16 | Ammonium poly phosphate (APP) =? | Ammonia + Super phosphoric acid |
| 17 | Ammonium sulphate suitable applied for which soils? | Alkaline soils |
| 18 | AM & N serve are? | Nitrification inhibitors |
| 19 | An example of slow release fertilizer is? | Coated urea |
| 20 | Analyzing process for determination of available N? | Alkaline permanganate method |
| 21 | Anion which is responsible for soil aggregation? | Phosphate |
| 22 | Application of potassic fertilizer often leads to reduce absorption of? | Zn and Cu |
| 23 | As a source of N, potato crop require fertilizer of? | Potassium nitrate |
| 24 | Associate symbiosis carries by? | Azosiprillum |
| 25 | Asymbiotic N2 fixing bacteria? | Azotobactor and Azospirillum |
| 26 | Average zinc content of mineral soils varies between? | 10 and 330 ppm |
| 27 | Azatobactor can fixes atmospheric nitrogen/ha to the soil.? | 20-30 kg |
| 28 | Azolla – Anabaena symbiosis can fix N2 upto? | 30-40 kg N ha-1 |
| 29 | Azolla can fix? | 600-800 kg N/ha |
| 30 | Azolla is sensitivity to temperatures above? | 25 degree C. |
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