Description : Criteria for the essentiality of nutrients for plants was given by (A) Arnon (B) Wilcox (C) Liebig (D) None
Last Answer : (A) Arnon
Description : Arnon and Stout discovered the essentiality of
Last Answer : Ans. Mo
Description : Law of Minimum was given by (A)Liebig (B) Blackman (C) Shelford (D) Oement
Last Answer : (A)Liebig
Description : Principle of Experimental design is given by (A) R A Fisher (B) Wilcox (C)Cox and Cochran (D) WG Cochran
Last Answer : (A) R A Fisher
Description : What are the nutrients of plants ?
Last Answer : 16 plant nutrients.
Description : ‘The law of limiting factors’ was proposed by (a) Leibig (b) Hatch and Slack (c) Blackman (d) Arnon.
Last Answer : (c) Blackman
Description : What are the nutrients of wheat and maize ?
Last Answer : The nutrient content of wheat and corn is called sugar
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 : Seed Treatment with chemical? A. Plant Selection B. Nutrients Management C. Genetic Improvement D. None of these
Last Answer : A. Plant Selection
Description : Crop logging’ is the method of? a. Soil fertility evaluation b. Plan analyst for assessing requirements for nutrients for crop production c. Assessing crop damage d. Testing suitability of fertilizers e. None of these
Last Answer : e. None of these
Description : Which is a Plan analyst for assessing requirements for nutrients for crop production?
Last Answer : Crop logging
Description : Essentiality of light in photosynthesis can be demonstrated by
Last Answer : Essentiality of light in photosynthesis can be demonstrated by A. Molles half leaf experiment B. ... C. Inverted funnel experiment D. KOH solution
Description : Concept “Essentiality of elements” was proposed in 1939 by
Last Answer : Ans. Arnon and Stout
Description : Essentiality of N was established by
Last Answer : Ans. De Saussure
Description : Which of the following law deals with hydraulic gradient in soil a. Fick law b. Stoke law c. Darcy law d. Liebig law
Last Answer : c. Darcy law
Description : Who is considered as Father of field plot technique ? a. Liebig b. Pushakarnath c. M S Swaminathan d. J B Boussingault
Last Answer : d. J B Boussingault
Description : The first person who used the term weed a). Jethro Tull b). Liebig c). James Hampshire d). None of these
Last Answer : a). Jethro Tull
Description : Philo unit 6 in ohio was built by ……. a) Thomas Savery b) Denis Papin c) Thomas Edison d) Babcock and Wilcox
Last Answer : d) Babcock and Wilcox
Description : Which of these is a stationary boiler? • Locomotive boiler • Marine boiler • Mobile boiler • Babcock Wilcox boiler
Last Answer : • Babcock Wilcox boiler
Description : Which of the following boiler is best suited to meet the fluctuating demand of steam....... A locomotive boiler. B Lancashire boiler C Cornish boiler D Babcock and wilcox boiler
Last Answer : A locomotive boiler.
Description : Which of the following is a water tube boiler........ A]Locomotive boiler B]Lancashire boiler C]Cornish boiler D]Babcock and wilcox boiler
Last Answer : in a Truss structure and nature of reactive force is in the nature of
Description : Which of the following boiler is best suited to meet the fluctuating demand of steam....... A]Locomotive boiler. B]Lancashire boiler C]Cornish boiler D]Babcock and wilcox boiler
Last Answer : A]Locomotive boiler.
Description : What are the advantages of fertigation in agriculture? 1. Controlling the alkalinity of irrigation water is possible. 2. Efficient application of Rock Phosphate and all other phosphatic fertilizers is possible. 3. Increased availability of ... 1, 2 and 4 only c) 1, 3 and 4 only d) 2, 3 and 4 only
Last Answer : c) 1, 3 and 4 only
Description : 134 Given below are the statements about the harmful effects of weeds on crop plants. i. They interfere in harvesting ii. They help crops to grow healthy. iii. They compete with crop plants for water, nutrients , space and light ... statements a) i, iii, iv b)iii only c) iii , iv d) i, ii , iii, iv
Last Answer : a) i, iii, iv
Description : Q2. How do plants get nutrients? -Science
Last Answer : There are 16 basic essential nutrients required by the plants to grow. Carbon and Oxygen are supplied by water and the remaining nutrients are supplied through soil.
Description : From which layer of the soil do plants get their nutrients ? -Science-7
Last Answer : Topsoil Topsoil is rich in nutrients that seeds or plants need to grow. It is the soil layer that is the most exposed to the environmental factors, like rain, and can wash away quickly. The process of moving soil and its nutrients is called soil erosion.
Description : What are the main nutrients of plants ?
Last Answer : 10. The main constituents of plants are : Nitrogen , Potassium , Phosphorus , Calcium , Magnesium , Carbon , Hydrogen , Oxygen , Sulfur and Iron .
Last Answer : Plants need water to absorb nutrients.
Last Answer : Nitrogen is absorbed by plant nutrients from urea fertilizer
Last Answer : 9 main nutrients of plants. Namely: Mg, K, Na, C, H, O, P, S.
Last Answer : 17 plant nutrients .
Last Answer : 9 main nutrients of plants .
Description : Technique of growing plants in a nutrients solution is known as
Last Answer : Technique of growing plants in a nutrients solution is known as
Description : The scientific process by which crop plants are enriched with certain desirable nutrients is called
Last Answer : The scientific process by which crop plants are enriched with certain desirable nutrients is ... B. breeding C. Biofortification D. Bioremediation
Description : What vital nutrients are needed for plants?
Last Answer : Roses are among the most difficult plants to grow and you many want to start with something easier. To successfully grow roses, you need good soil with appropriate amounts of sand, peat moss. You may also need to add nitrogen, phosphate and other fertilizers.
Description : How do hydroponic plants get their nutrients if they aren't grown in soil?
Last Answer : Hydroponic plants gather their nutrients from nutrient-enriched water as opposed to gathering their nutrients from soil. Soil itself is not essential to plant growth.
Description : Nutrients absorbed by plants from soil solution are carried upward through the
Last Answer : Ans. Xylem
Description : Multiplication of cell of large number of plants placed in appropriate environment conditions with required nutrients is known as
Last Answer : Ans. Plant tissue or in vitro culture
Description : Total no. of essential nutrients for plants
Last Answer : Ans. 17
Description : The inherent capacity of the soil to supply nutrients to plants in adequate amount and in suitable proportions
Last Answer : Ans. Soil Fertility
Description : Plants receive their nutrients mainly from (a) Chlorophyll (b) Atmosphere (c) Light (d) Soil
Last Answer : Ans:(d)
Description : Biofortifieation is a - (1) method of breeding crops to increase their nutritional value (2) strategy to combat unwanted nutrients in plants (3) method of developing resis-tance to insect pests (4) method of plant breeding for disease resistance
Last Answer : (1) method of breeding crops to increase their nutritional value Explanation: Biofortification is the breeding crops to increase their nutritional value. This can be done either through conventional ... are growing, rather than having nutrients added to the foods when they are being processed.
Description : The elements known as primary nutrients for plants (1) Nitrogen, Phosphorus and Potassium (2) Nitrogen, Oxygen and Silicon (3) Potassium, Boron and Nitrogen (4) Nitrogen, Phosphorus and Iron
Last Answer : (1) Nitrogen, Phosphorus and Potassium Explanation: Nitrogen (N), Phosphorus (P) and Potassium (K) are considered as the three essential or primary nutrients for plants. Together they make up ... need small quantities of iron, manganese, zinc, copper, boron and molybdenum, known as trace elements
Description : Through ‘Photosynthesis’ green plants generate - (1) inorganic materials (2) minerals (3) organic materials (4) nutrients
Last Answer : (3) organic materials Explanation: Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. Photosynthesis in green plants harnesses the energy of sunlight to ... + 12H2O (water) -> C6H12O6 (glucose) + 6O2 (oxygen) + H2O (water).
Description : (2) Nitrogen, Phosphorous and Sodium Explanation: Fertilizer (or fertiliser) is any organic or inorganic material of natural or synthetic origin (other than liming materials) that is added to a ... essential to the growth of plants. The three elements most needed in common fertilisers are Nitrogen.
Last Answer : Metal are good conductors, because – (1) they contain free electrons (2) the molecules in them are very close to each other (3) the molecules in them collide very freely (4) they contain reflecting surface
Description : Plants receive their nutrients mainly from?
Last Answer : soil
Description : Which one of the following statements is not true? (a) The flowers pollinated by flies and bats secrete foul odour to attract them. (b) Honey is made by bees by digesting pollen collected ... . (d) Pollen grains of some plants cause severe allergies and bronchial afflictions in some people.
Last Answer : (b) Honey is made by bees by digesting pollen collected from flowers.
Description : The three numbers on fertilizer represents the value of the three macro-nutrients used by plants represented as NPK for short. What are they? a. Neon, Phosphorous, Krypton b. Nitrogen, Phosphorus, Potassium c. Neon, Potassium, Krypton d. Neon, Potassium, Phosphorous
Last Answer : b. Nitrogen, Phosphorus, Potassium
Description : 9. The scientific process by which crop plants are enriched with certain desirable nutrients is called a) Crop protection b) breeding c) biofortfication d)bioremediation
Last Answer : c) biofortfication