Soil Fertility One Liner Questions Part- 4

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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

	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.

Soil Science One Liner

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