Description : Which micro-nutrient is most deficient in Indo-Gangatic alluvium soils?
Last Answer : Ans. Zinc
Description : In Indo-gangatic plains, rice-wheat cropping system covers about (A) 5 m ha (B) 10 m ha (C) 15 m ha (D) 20 m ha
Last Answer : (B) 10 m ha
Description : The most deficient micro – nutrient in Indian soil is : (A)Cu (B) Mn (C) Zn (D) B
Last Answer : (C) Zn
Description : Tarai soils are generally deficient in:? a Zinc b Nitrogen c Phosphorus d Potash
Last Answer : a Zinc
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 : Deficiency of which of the following nutrient leads to terminal bud leaf becoming chlorotic white? [a] Copper [b] Calcium [c] Iron [d] Chlorine [e] None of the above
Last Answer : [e] None of the above
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 : Asbestos is formed of : (1) Calcium and Magnesium (2) Copper, Zinc and Manganese (3) Lead and Iron (4) Calcium and Zinc
Last Answer : (1) Calcium and Magnesium Explanation: Pure and simple, asbestos is a group of naturally occurring minerals. It is composed of calcium and magnesium silicate. Asbestos occurs as veins in rocks and is mined from the ground, similar to coal.
Description : Minerals known to be required in large amounts for plant growth include (a) potassium, phosphorus, selenium, boron (b) magnesium, sulphur, iron, zinc (c) phosphorus, potassium, sulphur, calcium (d) calcium, magnesium, manganese, copper.
Last Answer : (c) phosphorus, potassium, sulphur, calcium
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
Last Answer : Calcium and Magnesium
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 : Plants grown in acidic soil are deficient in_____ a. Calcium and Manganese b. Magnesium and Calcium c. Iron and Manganese d. Aluminium and Iron
Last Answer : b. Magnesium and Calcium
Description : A trace element deficient in the milk is (A) Magnesium (B) Copper (C) Zinc (D) Chloride
Last Answer : Answer : A
Description : White colour of soil is due to the presence of – a) Silica b) Iron c) Manganese oxide d) All of these
Last Answer : c) Manganese oxide
Description : Khetri project in Rajasthan has been set up for producing (a) Zinc (b) Manganese (c) Copper (d) Salt
Last Answer : Ans: (c)
Description : Hypochromic microcytic anaemia can occur in (A) Zinc (B) Copper (C) Manganese (D) None of these
Last Answer : Answer : B
Description : Hypogonadism can occur in deficiency of (A) Copper (B) Chromium (C) Zinc (D) Manganese
Last Answer : Answer : C
Description : Metalloenzyme-retinene for polymerization of insulin is (A) Copper (B) Zinc (C) Cobalt (D) Manganese
Description : Mitochondrial superoxide dismutase contains (A) Zinc (B) Copper (C) Magnesium (D) Manganese
Last Answer : Answer : D
Description : Gun metal is an alloy of (A) Nickel, tin and copper (B) Copper, tin and zinc (C) Copper, phosphorus and nickel (D) Manganese, phosphorus and nickel
Last Answer : (B) Copper, tin and zinc
Description : Which one of the following is essential for photolysis of water? (a) Manganese (b) Zinc (c) Copper (d) Boron
Last Answer : (a) Manganese
Description : Which of the following elements plays an important role in biological nitrogen fixation? (a) Copper (b) Molybdenum (c) Zinc (d) Manganese
Last Answer : b) Molybdenum
Description : An element playing important role in nitrogen fixation is (a) molybdenum (b) copper (c) manganese (d) zinc
Last Answer : (a) Molybdenum
Description : Which element is involved in biosynthesis of IAA ? (A) Nitrogen (B) Boron (C) Zinc (D) Copper
Last Answer : (C) Zinc
Description : Khaira disease of rice can be controlled by spraying – 1) Copper sulphate 2) Calcium sulphate 3) Zinc sulphate 4) Borax
Last Answer : 3) Zinc sulphate
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 : Tarai soils are high in:? a Iron b Sodium c Organic matter d Calcium
Last Answer : c Organic matter
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 : The trace metal present in insulin is – (1) iron (2) zinc (3) cobalt (4) manganese
Last Answer : (2) zinc Explanation: Trace elements play important role in Insulin metabolism. The relationship between diabetes, insulin and zinc (Zn) is complex with no clear cause and effect ... and free radicals associated with decreases in intracellular Zn and in Zn dependent antioxidant enzymes.
Description : Match the following concerning essential elements and their functions in plants. Column-I Column-II (A) Iron (i) Photolysis of water (B) Zinc (ii) Pollen germination (C) Boron (iii) Required for chlorophyll biosynthesis (D) Manganese (iv) IAA biosynthesis
Last Answer : (c) (iii) (iv) (ii) (i)
Description : The main cause of leaf mottle disease in citrus is due to the deficiency of - a) Manganese b) Sulphar c) Zinc d) Iron
Last Answer : c) Zinc
Description : Enzyme catalase has non-protein metal asA-magnesium B-manganese C-iron D-zinc
Last Answer : iron
Description : The trace metal present in insulin is (1) iron (2) zinc (3) cobalt (4) manganese
Last Answer : zinc
Description : The Indo-Gangetic Plains of India are fertile due to (a) the heavy and timely rains and forests (b) alluvial soils brought by the rivers from the mountains (c) hard labour of the farmers over the generations (d) better irrigation facilities
Last Answer : Ans: (b)
Description : Although a deficiency of any one of the elements listed may result in chlorosis, only one of these elements is an element found in chlorophyll. Which is it?(a) Zinc (b) Iron (c) Magnesium (d) Chloride
Last Answer : (c) Magnesium
Description : Rice grain is deficient in (A) Lysine (B) Alanine (C) Glycine (D) Isoleucine
Last Answer : (A) Lysine
Description : Generally, cereals are deficient in – a) Protein b) Tryptophan c) Methionine d) Lysine
Last Answer : a) Protein
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 : Marshy soils are generally deficient of
Last Answer : Ans. Zn
Description : Peaty soils are generally deficient of
Last Answer : Ans. Cu
Description : The plant nutrient which help in translocation of sugars and starch is : (A) Mg (B) Mo (C) K (D) Na
Last Answer : (C) K
Description : The cake of which one of the following materials prepared with the comparable processing technology, contains the largest percentage of ‘N’ plant nutrient among all the materials given in the list ? (A) Coconut (B) Neem (C) Palm nut (D) Mahua (E) Karanj
Last Answer : (C) Palm nut
Description : The nutrient involved in the biosysnthesis of oil in oilseed crop is a] Calciumb] Magnesium c] Sulphur d] Molybdenum
Last Answer : c] Sulphur
Description : Balanced fertilizer used at the macro level in India is generally equated with a nutrient consumption ratio of? a. 4:2:1 b. 3:2:1 c. 1:2:3 d. 2:3:4
Last Answer : a. 4:2:1
Description : Among the following crop rotations, which is good for increasing soil nutrient status? a. Rice- wheat b. Groundnut- wheat c. Pearl millet- wheat d. Sorgham- wheat e. None of these
Last Answer : b. Groundnut- wheat
Description : The process by which nutrient chemicals or contaminants are dissolved and carried away by water, or are moved into a lower layer of soil (a) mulching (b) desertification (c) incineration (d) leaching
Last Answer : (d) leaching
Description : Growing of plant in soilness nutrient solution is referred as (a) Aeroponics (b) Hydroponics (c) Xeroponics (d) Thaloponics
Last Answer : (b) Hydroponics