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 : 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 : 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 : $ 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 : 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 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 : In our country, large patches of forest are being cleared for cultivation of crops . The environmental impact of such practice lead to a) soil erosion b)soil conservation c)soil pollution d)soil fertility
Last Answer : a) soil erosion
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
Description : Breeding of crops with high levels of minerals , vitamins and proteins is called
Last Answer : Breeding of crops with high levels of minerals , vitamins and proteins is called A. ... B. Biofortification C. Biomagnification D. Micropropagation
Description : Breeding of crops with high levels of minerals, vitamins and proteins is called (a) somatic hybridisation (b) biofortification (c) biomagnification (d) micropropagation.
Last Answer : (b) biofortification
Description : We are consuming a lot of electrical energy, solar energy etc Do you, therefore, conclude that energy of the universe is continuously decreasing? Explain. Which other thermodynamic quantity is continuously increasing or decreasing?
Last Answer : Ans. No, energy of the universe remains constant (law of conservation of energy). Entropy of the universe is continuously increasing.
Description : A pump operating under specific conditions delivers insufficient quantity of liquid. This may be set right by (A) Decreasing the size of the inlet pipe (B) Increasing the size of the inlet pipe (C) Lowering the pump position (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
Description : A reduction in the number of producers will result in equilibrium price (a) increasing and quantity increasing ; (b) increasing and quantity decreasing ; (c) decreasing and quantity increasing ; (d) decreasing and quantity decreasing
Last Answer : (b) increasing and quantity decreasing ;
Description : A shift outward in supply curve will result in equilibrium price (a) increasing and quantity increasing ; (b) increasing and quantity decreasing ; (c) decreasing and quantity increasing ; (d) decreasing and quantity decreasing
Last Answer : (c) decreasing and quantity increasing ;
Description : A farming practice influencing weed floristic diversity a). Fertility manipulation b). Crop rotation c). Intercropping d). All e). None
Last Answer : d). All
Description : A ball tied with a string to a rotating shaft revolves at uniform speed. As the shaft is suddenly brought to rest, the string starts getting round the shaft with the angular velocity of the ball (a) increasing (b) decreasing (c) remaining constant (d) becoming zero
Last Answer : Ans:(a)
Description : The growing of grass or legumes in rotation with grain or tilled crops as a soil conservation measure is termed as? a. Crop rotation b. Ley farming c. Shifting cultivation d. Dairy farming e. Mixed farming
Last Answer : b. Ley farming
Description : Select the incorrect statement. (a) Inbreeding helps in accumulation of superior genes and elimination of undesirable genes. (b) Inbreeding increases homozygosity. (c) Inbreeding is essential to ... any animal. (d) Inbreeding selects harmful recessive gene that reduce fertility and productivity.
Last Answer : (d) Inbreeding selects harmful recessive gene that reduce fertility and productivity.
Description : Crop rotation refers to : (a) method of farming without irrigation in an area of limited rainfall (b) farming done on the same land by different people turn-wise (c) growing same crop in alternate years (d) growing different crops in succession
Last Answer : Ans: (d)
Description : The range of a particular Rotameter can be increased by (A) Use of floats of different densities (B) No means (C) Increasing the diameter of the float (D) Decreasing the diameter of the float
Last Answer : (A) Use of floats of different densities
Description : What are the three different kinds of proteins found in the blood? -Biology
Last Answer : answer:
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
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 : 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 : 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 : 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 : 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 : Fertility of soil is measured by its ability to (a) retain nutrients (b) hold organic materials (c) hold water (d) support life.
Last Answer : (d) support life.
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 : 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 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 : Most important objective of mixed farming is — a. Subsistence b. Income generation c. Soil fertility improvement d. Soil conservation
Last Answer : a. Subsistence
Description : What are soils? How are they formed? Or ( Describe the factors that contribute to the formation and fertility to the soil.)
Last Answer : i. Loose and fragmented uppermost layer of the earth's crust, which is useful for plants, is called soil. It is the basic resources of agriculture. ii. It consists of both organic and ... erosion. Climate determines the rate of weathering and the type of vegetation. Time provide maturity to soils.
Description : Environmental factors which increases the allelopathic effects are a).low soil fertility b). Warm wet condition c). Cold wet conditions d). a and b
Last Answer : d). a and b
Description : Azolla increases soil fertility for (1) maize cultivation (2) wheat cultivation (3) barley cultivation (4) rice cultivation
Last Answer : rice cultivation