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 : 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 : 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 : Through ‘Photosynthesis’ green plants generate (1) inorganic materials (2) minerals (3) organic materials (4) nutrients
Last Answer : organic materials
Description : Which one of the following statement not true for organic manure ? a) It enhances water holding capacity of soil . b) It has a balance of all plant nutrients c) It provides humus to soil. d) It improves texture of soil.
Last Answer : b) It has a balance of all plant nutrients
Description : Do both animal and plant cells retain the ability to differentiate throughout their life?
Last Answer : No
Description : Self fertility refers to the ability of a variety to produce fruits with viable ___: a. Pollens b. Seeds c. Ovules d. Ovaries
Last Answer : Seeds
Description : Babbitt metal used for making bearings should have (A) High co-efficient of friction between journal and bearing (B) Ability to retain lubricant on its surface (C) Low co-efficient of friction between journal and bearing (D) Both (B) & (C)
Last Answer : (A) High co-efficient of friction between journal and bearing
Description : Is Google changing your ability to process information and retain information?
Last Answer : No, I feel that google makes things more accessible to me, and I learn more. I rarely need to google things that I would have known anyway. YES, I absolutely feel I know how to get the best searches out of google. I am the queen of that kinda stuff.
Description : Which of the following facts are true for resilience? a) Ability of material to absorb energy when deformed elastically b) Ability to retain deformation under the application of load or after removal ... c) Ability of material to absorb energy when deformed plastically d) None of the mentioned
Last Answer : a) Ability of material to absorb energy when deformed elastically
Description : Which of the following are true about plasticity? a) Permanent Deformation b) Ability to retain deformation under load or after removal of load c) Plastic deformation is greater than elastic deformation d) All of the mentioned
Last Answer : d) All of the mentioned
Description : How does the soil texture affect the ability of a soil to support plant life?
Last Answer : Soil with loose pores will allow water to collect and roots toexpand. Loose soil is therefore better than hard compact soil.On the other hand, finer particles, like clay increase surfacearea ... by digging the bed and mixing togethercoarse and finer textures, such as tilling compost into claysoil.
Description : Materials that retain a large part of their magnetization, after the magnetizing force is removed, are said to have _____________. A. low hysteresis loss B. high flux density C. high permanence D. high permeability
Last Answer : Answer: C
Description : Whether individual components in composite materials retain their characteristics or not?
Last Answer : yes.
Description : Whether Individual Components In Composite Materials Retain Their Characteristics Or Not?
Last Answer : Yes.
Description : Which of the following is not an advantage of weeds? a. A Controls Soil Erosion b. B Expedites water flow in irrigation canals c. C Maintain Soil Fertility d. D Used as fodder
Last Answer : b. B Expedites water flow in irrigation canals
Description : Find out the correct sentene about manure (i) Manure contains large quantites of organic matter and small quantites of nutrients. (ii) It increases th
Last Answer : Find out the correct sentene about manure (i) Manure contains large quantites of organic matter and small quantites ... and (iii) D. (iii) and (iv)
Description : A river with an inflow of domestic sewage rich in organic waste may result in (a) an increased production of fish due to biodegradable nutrients (b) death of fish due to lack of oxygen ( ... of the river very soon due to algal bloom (d) increased population of aquatic food web organisms.
Last Answer : (d) increased population of aquatic food web organisms.
Description : A lake which is rich in organic waste may result in (a) increased population of aquatic organisms due to minerals (b) drying of the lake due to algal bloom (c) increased population of fish due to lots of nutrients (d) mortality of fish due to lack of oxygen.
Last Answer : (d) mortality of fish due to lack of oxygen.
Description : A river with an inflow of domestic sewage rich in organic waste may result in (a) an increased production of fish due to biodegradable nutrients (b) death of fish due to lack of oxygen (c) drying of the river very soon due to algal bloom (d) increased population of aquatic food web organisms.
Last Answer : (b) death of fish due to lack of oxygen
Description : Q1. Compare the use of manure and fertilizers in maintaining soil fertility. -Science
Last Answer : Manure improves the soil quality with added nutrients. Manure provides extra organic matter called humus to the soil and therefore increasing the water retention capacity of sandy soils and drainage in clayey ... do not get oxygen properly. The nature of soil changes either to basic or acidic.
Description : What is the role of microbes in soil fertility? -Biology
Last Answer : answer:
Description : What is the role of bacteria in soil fertility? -Biology
Description : How can fertility of soil be improved? -General Knowledge
Last Answer : The answer is 'By addingliving earthworms'
Description : How to increase soil fertility ?
Last Answer : There is no substitute for using organic manure to increase soil fertility.
Description : $ Crop rotation decreasess the soil fertility. ! High concentration of minerals is required as fertilizers.
Last Answer : $ Crop rotation decreasess the soil fertility. ! High concentration of minerals is required as fertilizers. A. ... D. If both As and R are wrong.
Description : Soil fertility is depleted due to
Last Answer : Soil fertility is depleted due to A. Pan breaking B. Terracing C. Intensive agriculture D. Contour bunding
Description : What factors improve soil fertility?
Last Answer : humus, manure, and nitrogen ::::: apex
Description : How does cyclone decrease the fertility of the soil in the coastal areas?
Last Answer : It floods the land with saline water
Description : What effect when some farmer use too much chemical fertilizers to replenish soil fertility?
Last Answer : Feel Free to Answer
Description : Why does farmers need to artificially improve soil fertility?
Last Answer : Need answer
Description : How is the fertility of soil renewed and conserved?
Last Answer : Techniques for improved soil conservation include crop rotation, cover crops, conservation tillage and planted windbreaks, affect both erosion and fertility.
Description : How does soil pH affect soil fertility?
Last Answer : soil fertility increases soil PH
Description : Rotation of crops means (a) Same crop is grown again and again (b) Two crops are grown simultaneously to increase productivity of the soil (c) Different crops are grown in succession to maintain the soil fertility (d) None of the above
Last Answer : Ans: (c)
Description : Fertility of soil can be improved by : [IAS 1989] (a) adding living earthworms (b) adding dead earthworms (c) removing dead earthworms (d) removing living earthworms and adding dead earthworms
Last Answer : Ans: (a)
Description : Which one of the following is the correct sequence of crop rotation with a view to increasing soil fertility? (a) Wheat, Potato, Barley, Pea (b) Potato, Wheat, Pea, Barley (c) Barley, Pea, Wheat, Potato (d) Pea, Barley, Wheat, Potato
Description : A practice of turning un-decomposed fresh green plant tissue into the soil to improve fertility status and physical structure of the soil.
Last Answer : Ans. Green Manuring
Description : Which of the following methods does not help in conserving soil fertility and moisture? (1) Contour ploughing (2) Dry farming (3) Strip cropping (4) Shifting agriculture
Last Answer : (4) Shifting agriculture Explanation: Shifting cultivation is an agricultural system in which plots of land are cultivated temporarily, then abandoned. It is also known as slash and burn ... reclaimed by natural vegetation, or sometimes converted to a different long-term cyclical farming practice.
Description : Which one of the following practices is adopted for restoring the fertility of soil? (1) Weeding (2) Levelling (3) (2) sweet jowar (4) (4) Harrowing
Last Answer : (2) sweet jowar Explanation: Fallowing, in agriculture, is the mode of preparing land, by ploughing it a considerable time before it is ploughed for seed. As a result of fallowing, parts ... and thus reciprocally ameliorated; so that they may afford more uniform nourishment to the roots of plants
Description : Rotation of crops means – (1) growing of different crops in succession to maintain soil fertility (2) some crops are grown again and again (3) two or more crops are grown simultaneously to increase productivity (4) None of the above
Last Answer : (1) growing of different crops in succession to maintain soil fertility Explanation: Crop rotation is the practice of growing a series of dissimilar/different types of crops in the same area ... and can also improve soil structure and fertility by alternating deep-rooted and shallow-rooted plants.
Description : Rotation of crops is essential (1) For increasing the quantity of minerals. (2) For decreasing the quantity of proteins. (3) For getting different kinds of crops. (4) For increasing fertility of the soil.
Last Answer : (4) For increasing fertility of the soil. Explanation: Crop rotation is the practice of growing a series of dissimilar/different types of crops in the same area in sequenced seasons. It gives ... the replenishment of nitrogen through the use of green manure in sequence with cereals and other crops.
Description : Azolla increases soil fertility for – (1) maize cultivation (2) wheat cultivation (3) barley cultivation (4) rice cultivation
Last Answer : (4) rice cultivation Explanation: The nitrogen-fixing capability of Azolla has led to it being widely used as a biofertiliser for increasing the productivity of rice fields. When rice paddies ... can be inoculated with Azolla., which then quickly multiplies to cover the water, suppressing weeds.
Description : How fertility of soil can be increased in rice fields?
Last Answer : Nitrogen fixing blue green algae like Nostoc and Anabaena are grown.
Description : A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called (a) strip farming (b) shifting agriculture (c) ley farming (d) contour farming.
Last Answer : (c) ley farming
Description : A farming system in which airable crops are grown in alleys formed by trees or shrubs, to establish soil fertility and to enhance soil productivity, is known as— (A) Relay cropping (B) Multiple cropping (C) Alley cropping (D) Mixed cropping
Last Answer : (C) Alley cropping
Description : Fertility of soil can be improved by? a. Adding living earthworms b. Adding dead earthworms c. Removing dead earthworms d. Removing dead earthworms and adding living earthworms e. None of these
Last Answer : a. Adding living earthworms
Description : What is the reason for the reduced soil fertility? a. Over Irrigation b. Poor Drainage c. Continuous cropping d. Imbalanced use of fertilizers e. Pesticide
Last Answer : d. Imbalanced use of fertilizers
Description : The inherent capacity of soil to provide essential chemical elements for the growth of plants is termed as – a. Soil Productivity b. Soil Fertility c. Soil capacity d. Soil flexibility e. Soil Utility
Last Answer : b. Soil Fertility