Description : Which of the following is incorrect? (a) Red soils are rich in iron (b) Black soils are rich in phosphorus nitrogen and organic matter (c) Alluvial soils are rich in potash but poor in phosphorus (d) Red soils are suitable for cultivation of pulses and coarse grains
Last Answer : Ans: (b)
Description : Which of the following characteristics is not true of alluvial soils? (a) These vary from sandy loam to clay in texture (b) These are generally rich in phosphorus but poor in potash (c) These are usually fine grained (d) These are by far the most fertile
Description : Alluvial soils vary in nature from sandy loam to clay. They are generally - a. poor in potash and rich in phosphorus b. poor in both potash and phosphorus c. rich in both potash and phosphorus d. rich in potash and poor in phosphorus
Last Answer : d. rich in potash and poor in phosphorus
Description : Which micro-nutrient is most deficient in Indo-Gangatic alluvium soils? (a) Iron (b) Zinc (c) Copper (d) Manganese
Last Answer : (d) Manganese
Description : Sunflower is also known as an individual plant for the deficiency of (A) Nitrogen (B) Zinc (C) Boron (D) Potash
Last Answer : (A) Nitrogen
Description : Tarai soils are high in:? a Iron b Sodium c Organic matter d Calcium
Last Answer : c Organic matter
Description : Soils with high pH are generally deficient in:? a Zn and Mn b B and Fe c Cu and Mo d Ca and Mg
Last Answer : a Zn and Mn
Description : Soils of Western Rajasthan have a high content of a) Aluminium b) Calcium c) Nitrogen d) Phosphorus
Last Answer : b) Calcium
Description : Phosphorus is generally fixed in acid soils in the form of— (A) Calcium Phosphate (B) Zn Phosphate (C) Aluminium Phosphate (D) None of these
Last Answer : (C) Aluminium Phosphate
Description : Red soil is poor in which of the following nutrients ? (A) Phosphorus and Sulphur (B) Phosphorus and Nitrogen (C) Nitrogen and Zinc (D) Nitrogen and Potassium
Last Answer : (D) Nitrogen and Potassium
Description : What is the main function of zinc in the plants ? (A) Synthesis of nitrogen (B) Synthesis of phosphorus (C) Required for synthesis of Tryptophos (D) To increase activity of the boron
Last Answer : (C) Required for synthesis of Tryptophos
Description : The average carbon / nitrogen ratio of soils is generally...... (A) 25 : 1 (B) 5 : 1 (C) 30 : 1 (D) 14 : 1 (E) None of these
Last Answer : (C) 30 : 1
Description : My soil is poor, very low in Nitrogen, phosphorus and potash. How do I correct it?
Last Answer : Need Answer
Description : Which of the following are true in respect of alluvial soil ? 1. Generally confined to river basins 2. It has been deposited by rivers 3. It is rich in phosphorus and poor in potash 4. It is the most fertile soil (a) I and II (b) III and IV (c) I, II and IV (d) I, II and III
Last Answer : Ans: (c)
Description : Tarai Soil occurs in which state? a. Karnataka b. Bihar c. Uttar Pradesh d. Gujarat e. Punjab
Last Answer : b. Bihar
Description : If in the rice crop field, the leaves turn narrow, short, erect, and lemon yellowish and the entire field may appear yellowish, then the rice may be deficient of which nutrient? a. Calcium b. Potassium c. Nitrogen d. Phosphorus
Last Answer : c. Nitrogen
Description : Generally, cereals are deficient in – a) Protein b) Tryptophan c) Methionine d) Lysine
Last Answer : a) Protein
Description : Sugar-beet is an indicator plant for (A) Sodium (B) Molybdenum (C) Zinc (D) Phosphorus
Last Answer : (A) Sodium
Description : Which one of the following element is mobile in plants but immobile in soil ? (A) Sulphur (B) Zinc (C) Boron (D) Phosphorus
Last Answer : (D) Phosphorus
Description : Alkali soils are treated with gypsum to correct the deficiency of- (a) Sulphur (b) Calcium (c) Magnesium (d) Zinc
Last Answer : (b) Calcium
Description : Marshy soils are generally deficient of
Last Answer : Ans. Zn
Description : Peaty soils are generally deficient of
Last Answer : Ans. Cu
Description : Which one of the following is a micro nutrient in the soil? A. Nitrogen B. Iron C. Phosphorus D. Calcium
Last Answer : B. Iron
Description : Which of the following elements is not present in a nitrogenous base? (a) Hydrogen (b) Carbon (c) Phosphorus (d) Nitrogen
Last Answer : (c) Phosphorus
Description : Of the following statements about the major soil types, the incorrect one is : (a) alluvial soils are easy to plough (b) red soils are rich in phosphorus, nitrogen and lime content ( ... regions which receive heavy seasonal rainfall (d) black soil is highly retentive of moisture and very productive
Description : The problem of iron toxicity generally exists in— (A) Acid soils (B) Alkali soils (C) Saline soils(D) Saline-Alkali soils
Last Answer : (A) Acid soils
Description : Muriate of Potash is— (A) K 2 SO 4 (B) KCl (C) K 2 HPO 4 (D) KNO 3
Last Answer : (B) KCl
Description : Murate of potash is (a) K2SO4 (b) KCI (c) KNO3 (d) K2HPO4
Last Answer : (b) KCI
Description : Which of the following statements regarding red soils of India is/are correct? 1. The colour of the soil is-red due to ferric oxide content. 2. Red soils are rich in lime, humous and potash. 3. They are porous and have friable ... OS2011] (a) 1 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3
Description : The Red soils develop a reddish colour due to: (a) deforestation and over-grazing (b) the presence of potash and magnesia (c) tropical monsoonal climate (d) a wide diffusion of iron in ancient crystalline and metamorphic Jacks
Last Answer : Ans: (d)
Description : Which element is involved in biosynthesis of IAA ? (A) Nitrogen (B) Boron (C) Zinc (D) Copper
Last Answer : (C) Zinc
Description : Whip tail disease of cauliflower is caused by deficiency of— (A) Nitrogen (B) Boron (C) Molybdenum (D) Zinc
Last Answer : (C) Molybdenum
Description : The khaira disease of rice is caused due to deficiency of which of the following? [a] Zinc [b] Nickel [c] Nitrogen [d] Sulphur [e] None of the above
Last Answer : [d] Sulphur
Description : In which of the following all three are macronutrients? (a) Molybdenum, magnesium, manganese (b) Nitrogen, nickel, phosphorus (c) Boron, zinc, manganese (d) Iron, copper, molybdenum
Last Answer : (d) Iron, copper, molybdenum
Description : The most deficient micro – nutrient in Indian soil is : (A)Cu (B) Mn (C) Zn (D) B
Last Answer : (C) Zn
Description : Rice grain is deficient in (A) Lysine (B) Alanine (C) Glycine (D) Isoleucine
Last Answer : (A) Lysine
Description : Milk is deficient of which mineral? (A) Phosphorus (B) Sodium (C) Iron (D) Potassium
Last Answer : C
Last Answer : (C) Iron
Description : Insectivorous plants usually grow in soils which are deficient in
Last Answer : Insectivorous plants usually grow in soils which are deficient in A. Nitrogen B. Calcium C. Magnesium D. Carbohydrate
Last Answer : Insectivorous plants usually grow in soils which are deficient in A. Water rich soil B. `N_(2)` ... `N_(2)` rich soil D. Sugar deficient medium
Description : Which micro-nutrient is most deficient in Indo-Gangatic alluvium soils?
Last Answer : Ans. Zinc
Description : Phosphorus and nitrogen ions generally get depleted in soil because they usually occur as (a) neutral ions (b) negatively charged ions (c) positively charged ions (d) both positively and negatively charged but disproportionate mixture.
Last Answer : (b) negatively charged ions
Description : How can I measure the amounts of phosphate, nitrogen, and potash in a purchased bag of fertilizer?
Last Answer : There are three numbers on the front of the bag with dashes. These are percentages. The first number is nitrogen, then phosphate, then potassium.
Description : For the cultivation of Tobacco the soil should be rich in – (1) calcareous matter (2) nitrogen (3) organic content (4) potash
Last Answer : (4) potash Explanation: Tobacco is a crop that needs significant amounts of potassium. It is a fast growing plant between 80 and 150 days, with a high daily potassium requirement. Potash is the ... such as plant remains, and this was the major historical source for it before the industrial era.
Description : For which type of fertilizer, India is fully dependent on imports – (1) Nitrogen Fertilizer (2) Phosphatic Fertilizer (3) Potash Fertilizer (4) None of these
Last Answer : (3) Potash Fertilizer Explanation: Potash fertilizer is not manufactured in India.
Description : For the cultivation of Tobacco the soil should be rich in (1) calcareous matter (2) nitrogen (3) organic content (4) potash
Last Answer : potash
Description : Marasmus occurs from deficient intake of (A) Essential amino acids (B) Essential fatty acids (C) Calories (D) Zinc
Last Answer : Answer : C
Description : A trace element deficient in the milk is (A) Magnesium (B) Copper (C) Zinc (D) Chloride
Last Answer : Answer : A
Description : Plants deficient of element zinc, show its effect on the biosynthesis of plant growth hormone (a) auxin (b) cytokinin (c) ethylene (d) abscisic acid.
Last Answer : (a) auxin
Description : Plants absorb phosphorus in the form of (A) H2PO4 (B) PO4 (C) SSP (D) P
Last Answer : (A) H2PO4