Crop rotation helps to – (1) lessen use of pesticides (2) eliminate parasites which have selective hosts (3) yield more crops (4) produce a greater choice of plant products

Crop rotation helps to – (1) lessen use of pesticides (2) eliminate parasites which have selective hosts (3) yield more crops (4) produce a greater choice of plant products
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(2) eliminate parasites which have selective hosts Explanation: The growing of different kinds of crops on a piece of land in a preplanned succession is known as crop rotation. In the rotation of crops, leguminous crops like pulses, beans, peas, groundnut and Bengal gram are sown in-between the seasons of cereal crops like wheat, maize and pearl millet. The leguminous plants are grown alternately with nonleguminous plants to restore the fertility of the soil. So it brings about an increase in the production of food grains. Besides, rotation of crops helps in weed control and pest control. This is because weeds and pests are very choosy about the host crop plant, which they attack.
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Crop rotation helps to a) lessen use of pesticides b) yield more crops c) produce a greater choice of plant products d) eliminate parasites which have selective hosts

Description : Crop rotation helps to a) lessen use of pesticides b) yield more crops c) produce a greater choice of plant products d) eliminate parasites which have selective hosts

Last Answer : d) eliminate parasites which have selective hosts

Salination of soil is caused by – (1) pesticides (2) soil erosion (3) excess irrigation (4) crop rotation

Description : Salination of soil is caused by – (1) pesticides (2) soil erosion (3) excess irrigation (4) crop rotation

Last Answer : (3) excess irrigation Explanation: Soil salinity is the salt content in the soil: the process of increasing the salt content is known as salinization. Excess irrigation leads to increase in ... is also greatly increased by poor drainage and use of saline water for irrigating agricultural crops.

Crop rotation is being adopted – (1) to increase the productivity of the land (2) to increase the crop yield (3) to increase the soil water (4) to increase the crop resistance to pests.

Description : Crop rotation is being adopted – (1) to increase the productivity of the land (2) to increase the crop yield (3) to increase the soil water (4) to increase the crop resistance to pests.

Last Answer : (1) to increase the productivity of the land Explanation: Crop rotation is the practice of growing a series of dissimilar types of crops in the same area in sequential seasons for various ... the replenishment of nitrogen through the use of green manure in sequence with cereals and other crops.

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

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)

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

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)

If it rains only for two months which of the following will yield maximum crop per hectare? (a) Short term crops (b) Long term crops (c) Pulses (d) Millets

Description : If it rains only for two months which of the following will yield maximum crop per hectare? (a) Short term crops (b) Long term crops (c) Pulses (d) Millets

Last Answer : Ans: (d)

Salination of soil is caused by (1) pesticides (2) soil erosion (3) excess irrigation (4) crop rotation

Description : Salination of soil is caused by (1) pesticides (2) soil erosion (3) excess irrigation (4) crop rotation

Last Answer : excess irrigation

Tissue culture is a good technique to a) Cross two varieties b) Rapidly increase the size of a trees by strengthening the stem c) Eliminate virus d) Improve yield of crops

Description : Tissue culture is a good technique to a) Cross two varieties b) Rapidly increase the size of a trees by strengthening the stem c) Eliminate virus d) Improve yield of crops 

Last Answer : c) Eliminate virus 

Does flax seed eliminate or lessen PMS?

Description : Does flax seed eliminate or lessen PMS?

Last Answer : I’ve never heard that of flax but Evening primrose oil capsules sure helped me.

Integrated weed management practices that a). Enhance crop competitive ability b). Decrease weeds ability to reduce yield c). Practices that eliminate weeds from an area d). Both a and b e). Both a and c

Description : Integrated weed management practices that a). Enhance crop competitive ability b). Decrease weeds ability to reduce yield c). Practices that eliminate weeds from an area d). Both a and b e). Both a and c

Last Answer : d). Both a and b

Which one of the following terms describes the practice of growing two or more crops simultaneously on the same piece of land? a. Crop rotation b. Mixed cropping c. Intercropping d. Mixed farming

Description : Which one of the following terms describes the practice of growing two or more crops simultaneously on the same piece of land? a. Crop rotation b. Mixed cropping c. Intercropping d. Mixed farming

Last Answer : b. Mixed cropping

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

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.

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

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

Which is not an adverse effect of irrigation? (a) Irrigation changes cropping pattern. (b) Water intensive crops are grown in dry areas. (c) Salinization of soil (d) Increase in crop yield.

Description : Which is not an adverse effect of irrigation? (a) Irrigation changes cropping pattern. (b) Water intensive crops are grown in dry areas. (c) Salinization of soil (d) Increase in crop yield.

Last Answer : (c) Salinization of soil

What is the main advantage of transplantation method in rice cultivation? (a) This method ensures maximum utilization of land (b) It is helpful in achieving an economical use of water and a higher yield of grain (c) It helps in early harvesting (d) The draining of water from the field before harvesting is made easy

Description : What is the main advantage of transplantation method in rice cultivation? (a) This method ensures maximum utilization of land (b) It is helpful in achieving an economical use of water and a higher ... helps in early harvesting (d) The draining of water from the field before harvesting is made easy

Last Answer : Ans: (b)

Crop rotation helps to?

Description : Crop rotation helps to?

Last Answer : Eliminate parasites which have selective hosts

Advantages of Artificial Methods of Vegetative Reproduction include a) Crops with better quality b) Crops with more yield c) Ability to produce plants with desirable qualities d) All of these

Description : Advantages of Artificial Methods of Vegetative Reproduction include a) Crops with better quality b) Crops with more yield c) Ability to produce plants with desirable qualities d) All of these 

Last Answer : c) Ability to produce plants with desirable qualities 

Which of the following helps in the 'greening process' of crops? (a) Sunshine (b) Phosphatic fertilizers (c) Nitrogenous fertilezers (d) Potassic fertilizers

Description : Which of the following helps in the 'greening process' of crops? (a) Sunshine (b) Phosphatic fertilizers (c) Nitrogenous fertilezers (d) Potassic fertilizers

Last Answer : Ans: (c)

Contour ploughing helps in – (1) stopping floods (2) growing crops (3) soil conservation (4) checking landslides

Description : Contour ploughing helps in – (1) stopping floods (2) growing crops (3) soil conservation (4) checking landslides

Last Answer : (3) soil conservation Explanation: Contour ploughing is the farming practice of ploughing across a slope following its elevation contour lines. The rows form slow water run-off during rainstorms to prevent soil erosion and allow the water time to settle into the soil.

Which of the following is/are correct about shifting cultivation ? 1. It involves no ploughing 2. It is slash and burn agriculture 3. It involves crop rotation 4. It is combined with transhumance (a) I, II, III and IV (b) II, III and IV (c) II and III (d) I and II

Description : Which of the following is/are correct about shifting cultivation ? 1. It involves no ploughing 2. It is slash and burn agriculture 3. It involves crop rotation 4. It is combined with transhumance (a) I, II, III and IV (b) II, III and IV (c) II and III (d) I and II

Last Answer : Ans: (d)

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 : 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

Last Answer : Ans: (c)

In which of the following ways can soil be conserved? 1. Contour ploughing 2. Terracing 3. Shifting cultivation 4. Crop rotation (a) I, II and IV (b) II, III and IV (c) II and IV (d) I and III shop.ssbcrack.com

Description : In which of the following ways can soil be conserved? 1. Contour ploughing 2. Terracing 3. Shifting cultivation 4. Crop rotation (a) I, II and IV (b) II, III and IV (c) II and IV (d) I and III shop.ssbcrack.com

Last Answer : Ans: (a)

Soil can best be conserved on the hills by which of the cultivating methods? (a) Strip cropping (b) Crop rotation (c) Contour ploughing (d) Terracing

Description : Soil can best be conserved on the hills by which of the cultivating methods? (a) Strip cropping (b) Crop rotation (c) Contour ploughing (d) Terracing

Last Answer : Ans: (c)

In a desert region, soil erosion can be checked by – (1) Tree plantation/afforestation (2) Crop rotation (3) Contour ploughing (4) Using farm manure

Description : In a desert region, soil erosion can be checked by – (1) Tree plantation/afforestation (2) Crop rotation (3) Contour ploughing (4) Using farm manure

Last Answer : (1) Tree plantation/afforestation Explanation: Soil erosion in a desert region can be checked by tree plantation and afforestation.

In a desert region, soil erosion can be checked by – (1) Contour ploughing (2) Using farm manure (3) Tree plantation/Afforestaion (4) Crop rotation

Description : In a desert region, soil erosion can be checked by – (1) Contour ploughing (2) Using farm manure (3) Tree plantation/Afforestaion (4) Crop rotation

Last Answer : (3) Tree plantation/Afforestaion Explanation: Afforestation holds the key for preventing soil erosion in desert regions and further desertification. Trees or even small plants bind soil to ... introduction of improved dry farming practices and animal husbandry and plantations for fuel and fodder.

High yielding plants can be produced by (1) Crop Rotation (2) Hybridisation (3) Inter-cropping (4) Mixed - cropping

Description : High yielding plants can be produced by (1) Crop Rotation (2) Hybridisation (3) Inter-cropping (4) Mixed - cropping

Last Answer : (2) Hybridisation Explanation: Operation Flood in India, a project of the National Dairy Development Board (NDDB) was the world's biggest dairy development programme which made India, a milk-deficient nation, ... world, surpassing the USA in 1998, with about 17 percent of global output in 2010-11.

How would you increase the yield of maize crop? (a) Evolve high yielding varieties of seeds to suit different agroclimatic regions (b) Develop high yielding varieties (c) Develop disease-resistant varieties (d) Develop early and very early maturing varieties suitable for rainfall areas

Description : How would you increase the yield of maize crop? (a) Evolve high yielding varieties of seeds to suit different agroclimatic regions (b) Develop high yielding varieties (c) Develop disease-resistant varieties (d) Develop early and very early maturing varieties suitable for rainfall areas

Last Answer : Ans: (a)

What is multiple cropping? (a) When seeds are sown on a piece of land and then seedings are transplanted in different fields (b) Dividing a field in two or more parts and then sowing different crops in each part (c) Raising in succession only one type of crop in the same piece of land (d) Raising two or more crops in succession in a year on the same land

Description : What is multiple cropping? (a) When seeds are sown on a piece of land and then seedings are transplanted in different fields (b) Dividing a field in two or more parts and then sowing different crops in ... same piece of land (d) Raising two or more crops in succession in a year on the same land

Last Answer : Ans: (b)

Consider the following statements (A–D) about organic farming. (A) Utilizes genetically modified crops like Bt cotton (B) Uses only naturally produced inputs like compost (C) Does not use pesticides and urea (D) Produces vegetables rich in vitamins and minerals Which of the above statements are correct? (a) B, C and D (b) C and D only (c) B and C only (d) A and B only

Description : Consider the following statements (A-D) about organic farming. (A) Utilizes genetically modified crops like Bt cotton (B) Uses only naturally produced inputs like compost (C) Does not use pesticides and urea (D) Produces vegetables ... C and D (b) C and D only (c) B and C only (d) A and B only

Last Answer : (c) B and C only

What is a bad effect of spraying spraying pesticides on crops?

Description : What is a bad effect of spraying spraying pesticides on crops?

Last Answer : Well, wind drift is going to be a problem, and it kills the bad bugs, but the good ones as well. If anyone is in that field when the crop duster lets his spray go, then one would be ... means following the label directions to the letter! Don't skimp on safety either. Its your health, not mine.

Application of organophosphorus group of pesticides along with which herbicides cause injury to crops a). Triazines b). Ureas c). Both d). None

Description : Application of organophosphorus group of pesticides along with which herbicides cause injury to crops a). Triazines b). Ureas c). Both d). None

Last Answer : c). Both

Which one of the following statements correctly defines the term transhumance ? [NDA 1991] (a) Economy that solely depends upon animals (b) Farming in which' only one crop is cultivated by clearing hill slopes (c) Practice of growing crops on higher hill slopes in summer and foothills in winter (d) Seasonal migration of people with their animals up and down the mountains

Description : Which one of the following statements correctly defines the term transhumance ? [NDA 1991] (a) Economy that solely depends upon animals (b) Farming in which' only one crop is cultivated by ... and foothills in winter (d) Seasonal migration of people with their animals up and down the mountains

Last Answer : Ans: (d)

Name the crop-season in India that opens in May-June with major crops like rice and millets. (1) Rainy season (2) Rabi (3) Kharif (4) Winter season

Description : Name the crop-season in India that opens in May-June with major crops like rice and millets. (1) Rainy season (2) Rabi (3) Kharif (4) Winter season

Last Answer : (1) Rainy season Explanation: Kharif/Rainy/Monsoon crops are the crops grown in monsoon months from June to October/November. They require warm, wet weather at major period of crop growth, and also required short day length for flowering. Examples: Cotton, Rice, Jowar, bajara.

“Relative land area under sole crop required to produce the same yield as obtained under a mixed or intercropping system at the same level of management is termed as

Description : “Relative land area under sole crop required to produce the same yield as obtained under a mixed or intercropping system at the same level of management is termed as

Last Answer : Ans.Land equivalent ratio (LER)

Man can maintain an ecological balance in the biosphere by- (1) deforestation (2) developing new breeds of cultivated plants and domesticated animals (3) using insecticides and pesticides (4) understanding the delicate balance in the relative number of organisms

Description : Man can maintain an ecological balance in the biosphere by- (1) deforestation (2) developing new breeds of cultivated plants and domesticated animals (3) using insecticides and pesticides (4) understanding the delicate balance in the relative number of organisms

Last Answer : (4) understanding the delicate balance in the relative number of organisms Explanation: Ecological balance is a state of dynamic equilibrium within a community of organisms in which genetic ... this balance, the delicate balance between the organisms constituting and ecosystem should be understood.

To produce which crop you have to cultivate 16 crops ?

Description : To produce which crop you have to cultivate 16 crops ?

Last Answer : To cultivate radish, 16 cultivars are required.

'Operation Flood' refers to – (1) increase in the production of milk (2) increase in the production of dairy products (3) controlling flood (4) increasing the production of agricultural crops

Description : 'Operation Flood' refers to – (1) increase in the production of milk (2) increase in the production of dairy products (3) controlling flood (4) increasing the production of agricultural crops

Last Answer : (1) increase in the production of milk Explanation: Operation Flood in India, a project of the National Dairy Development Board (NDDB) was the world's biggest dairy development programme which made India, ... the world, surpassing the USA in 1998, with about 17 percent of global output in 2010-11.

Main objective of production/use of herbicide resistant GM crops is to (a) encourage eco-friendly herbicides (b) reduce herbicide accumulation in food articles for health safety (c) eliminate weeds from the field without the use of manual labour (d) eliminate weeds from the field without the use of herbicides

Description : Main objective of production/use of herbicide resistant GM crops is to (a) encourage eco-friendly herbicides (b) reduce herbicide accumulation in food articles for health safety (c) eliminate weeds from ... the use of manual labour (d) eliminate weeds from the field without the use of herbicides

Last Answer : (c) eliminate weeds from the field without the use of manual labour

Phosphatic fertilisers (A) Are useful during early stage of the plant growth (B) Accelerate fruit formation in later stages of growth (C) Lessen the effect of excessive nitrogen application (D) None of these

Description : Phosphatic fertilisers (A) Are useful during early stage of the plant growth (B) Accelerate fruit formation in later stages of growth (C) Lessen the effect of excessive nitrogen application (D) None of these

Last Answer : (B) Accelerate fruit formation in later stages of growth

Antibiotics are products of (a) Bacteria and fungi (b) Fungi and parasites (c) Parasites and bacteria (d) Fungi and viruses

Description : Antibiotics are products of (a) Bacteria and fungi (b) Fungi and parasites (c) Parasites and bacteria (d) Fungi and viruses

Last Answer : (a) Bacteria and fungi

The chief advantage of encystment of an Amoeba is (a) the ability to survive during adverse physical conditions (b) the ability to live for sometime without ingesting food (c) protection from parasites and predators (d) the chance to get rid of accumulated waste products

Description : The chief advantage of encystment of an Amoeba is (a) the ability to survive during adverse physical conditions (b) the ability to live for sometime without ingesting food (c) protection from parasites and predators (d) the chance to get rid of accumulated waste products

Last Answer : (a) the ability to survive during adverse physical conditions

Name the plant growth regulator which upon spraying on sugarcane crop, increases the length of stem, thus increasing the yield of sugarcane crop. (a) Cytokinin (b) Gibberellin (c) Ethylene (d) Abscisic acid

Description : Name the plant growth regulator which upon spraying on sugarcane crop, increases the length of stem, thus increasing the yield of sugarcane crop. (a) Cytokinin (b) Gibberellin (c) Ethylene (d) Abscisic acid

Last Answer : (b) Gibberellin

Which of the following is not a characteristic feature of yield lines? [ A ] Yield lines end at a slab boundary [ B ] Yield lines are of parabolical shape [ C ] Axes of rotation generally lie along the lines of supports [ D ] None of the above.

Description : Which of the following is not a characteristic feature of yield lines? [ A ] Yield lines end at a slab boundary [ B ] Yield lines are of parabolical shape [ C ] Axes of rotation generally lie along the lines of supports [ D ] None of the above.

Last Answer : [ B ] Yield lines are of parabolical shape

The method of harvesting a crop which leaves the roots and the lower parts of the plant uncut to give the subtle crops is known as - a. Mulching b. Intensive farming c. Ratooning d. Zero tillage farming

Description : The method of harvesting a crop which leaves the roots and the lower parts of the plant uncut to give the subtle crops is known as - a. Mulching b. Intensive farming c. Ratooning d. Zero tillage farming

Last Answer : c. Ratooning

The method of harvesting a crop which leaves the roots and a. MulchingB. Intensive farmingC. RatooningD. Zero tillage farming the lower parts of the plant uncut to give the subtle crops is known as?

Description : The method of harvesting a crop which leaves the roots and the lower parts of the plant uncut to give the subtle crops is known as? a. Mulching B. Intensive farming C. Ratooning D. Zero tillage farming

Last Answer : C. Ratooning

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 . iv. They affect plant growth . Choose the correct combination of statements a) i, iii, iv b)iii only c) iii , iv d) i, ii , iii, iv

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

C4 plant normaly produce more biological yield than C3 plant because of: (A) More photorespiration (B) Less photorespiration (C) Less photophosphorylation (D) More photophosphorylation

Description : C4 plant normaly produce more biological yield than C3 plant because of: (A) More photorespiration (B) Less photorespiration (C) Less photophosphorylation (D) More photophosphorylation

Last Answer : (B) Less photorespiration

A few showers of rain during the months of December and January are beneficial to the rabi crops because they (a) make the plant strong (b) protect the crops from frost (c) cause fall in temperature (d) provide moisture for the germination of seeds

Description : A few showers of rain during the months of December and January are beneficial to the rabi crops because they (a) make the plant strong (b) protect the crops from frost (c) cause fall in temperature (d) provide moisture for the germination of seeds

Last Answer : Ans: (b)

The purpose of squirrel-cage windings in a synchronous motor is to ______________. A. provide more precise balancing B. produce a higher power factor C. eliminate arcing between the stator and the frame D. provide a means for starting

Description : The purpose of squirrel-cage windings in a synchronous motor is to ______________. A. provide more precise balancing B. produce a higher power factor C. eliminate arcing between the stator and the frame D. provide a means for starting

Last Answer : Answer: D