The soil pH level primarily controls: a. Soil temperature b. Activity of soil-borne diseases c. Moisture absorption by roots d. Availability of essential plant nutrients

The soil pH level primarily controls:
a. Soil temperature
b. Activity of soil-borne diseases
c. Moisture absorption by roots
d. Availability of essential plant nutrients
by

1 Answer

Answer :

Availability of essential plant nutrients
by

Related questions

Colour of carrot roots is affected by: a. Soil temperature b. Soil moisture c. Soil texture d. All of above

Description : Colour of carrot roots is affected by: a. Soil temperature b. Soil moisture c. Soil texture d. All of above

Last Answer : Soil moisture

Cracking in tomato fruit is due to: a. High nitrogen level b. Temperature fluctuations c. Soil moisture fluctuations a. All of these

Description : Cracking in tomato fruit is due to: a. High nitrogen level b. Temperature fluctuations c. Soil moisture fluctuations a. All of these

Last Answer : All of these

Water availability, temperature extremes, and __________ should be considered when selecting trees for the landscape. a. Slope b. Topography c. Soil type d. Buildings present

Description : Water availability, temperature extremes, and __________ should be considered when selecting trees for the landscape. a. Slope b. Topography c. Soil type d. Buildings present

Last Answer : Soil typ

Bulb production in onion is dependent upon: a. Temperature b. Soil moisture c. Day length d. All of above

Description : Bulb production in onion is dependent upon: a. Temperature b. Soil moisture c. Day length d. All of above

Last Answer : Day length

Clay soils require: a. A longer time for absorption of irrigation water than sandy soils b. A shorter time for absorption of irrigation water than sandy soils c. About the same time for absorption of irrigation water as sandy soils d. More or less time for absorption than sandy soils, depending on the pH of the clay

Description : Clay soils require: a. A longer time for absorption of irrigation water than sandy soils b. A shorter time for absorption of irrigation water than sandy soils c. About the same time for absorption of ... soils d. More or less time for absorption than sandy soils, depending on the pH of the clay

Last Answer : A longer time for absorption of irrigation water than sandy soils

Maximum number of flowers in mango are borne on a. August flush b. June flush c. May flush d. April flesh

Description : Maximum number of flowers in mango are borne on a. August flush b. June flush c. May flush d. April flesh

Last Answer : April flesh

The soil moisture conservation technique under covered ground area is called: a. Fertigation b. Mulching c. Microjet irrigation d. Hydraulic

Description : The soil moisture conservation technique under covered ground area is called: a. Fertigation b. Mulching c. Microjet irrigation d. Hydraulic

Last Answer : Mulching

Excessive soil moisture, late in the season cause. a. Decrease in TSS decrease in dry matter b. Increase in TSS decrease in dry matter c. Decrease in TSS increase in dry matter d. None of above

Description : Excessive soil moisture, late in the season cause. a. Decrease in TSS decrease in dry matter b. Increase in TSS decrease in dry matter c. Decrease in TSS increase in dry matter d. None of above

Last Answer : Decrease in TSS increase in dry matte

Commercial flower crops are sometimes watered to cause leaching. This means: a. Watering to spread fertilizer nutrients more evenly throughout the plant root system b. Watering to remove excess soluble salts from the growing medium c. Watering only to wet the top 1/3 of the growing medium d. Watering by subsurface methods

Description : Commercial flower crops are sometimes watered to cause leaching. This means: a. Watering to spread fertilizer nutrients more evenly throughout the plant root system b. Watering to remove excess soluble salts from ... only to wet the top 1/3 of the growing medium d. Watering by subsurface methods

Last Answer : Watering to remove excess soluble salts from the growing medium

Lowering the soil grade around a tree removes many of the tree’s __________ roots. a. Tap b. Aerial c. Feeder d. Aquatic

Description : Lowering the soil grade around a tree removes many of the tree’s __________ roots. a. Tap b. Aerial c. Feeder d. Aquatic

Last Answer : Feeder

In citrus 80-90% of the active roots are present in the soil to a depth of: a. 25 cm b. 50 cm c. 75 cm d. 100 cm

Description : In citrus 80-90% of the active roots are present in the soil to a depth of: a. 25 cm b. 50 cm c. 75 cm d. 100 cm

Last Answer : 25 cm

Tree fruit can tolerate a soil pH in the range of: a. 4.5-8.5 b. 5.5-8.0 c. 5.0-8.0 d. 5.5-8.5

Description : Tree fruit can tolerate a soil pH in the range of: a. 4.5-8.5 b. 5.5-8.0 c. 5.0-8.0 d. 5.5-8.5

Last Answer : 5.5-8.5

Berry splitting in citrus and strawberry is due to a. High temperature b. Low moisture c. High sunlight d. High air pressure

Description : Berry splitting in citrus and strawberry is due to a. High temperature b. Low moisture c. High sunlight d. High air pressure

Last Answer : High temperature

The most important seed component affecting seed /viability during storage is: a. Temperature b. Humidity c. Moisture d. Food reserves

Description : The most important seed component affecting seed /viability during storage is: a. Temperature b. Humidity c. Moisture d. Food reserves

Last Answer : Temperature

Secondary dormancy in non dormant seeds is due to: j. Temperature a. Moisture b. Aeration c. Ligh

Description : Secondary dormancy in non dormant seeds is due to: j. Temperature a. Moisture b. Aeration c. Ligh

Last Answer : Temperature

The basic underlying principle of using a mist propagation system is that it: a. Keeps the propagation medium uniformly moist and supplies moisture to the base of the cuttings b. Keeps the plant material cool c. Cools the propagation medium to promote root formation and development d. Increases humidity around the cutting and reduces transpiration

Description : The basic underlying principle of using a mist propagation system is that it: a. Keeps the propagation medium uniformly moist and supplies moisture to the base of the cuttings b. ... medium to promote root formation and development d. Increases humidity around the cutting and reduces transpiration

Last Answer : Increases humidity around the cutting and reduces transpiration

Citrus can tolerate a salinity level a. pH 9.0 b. pH 8.5 c. pH 7.5 d. pH 4.5

Description : Citrus can tolerate a salinity level a. pH 9.0 b. pH 8.5 c. pH 7.5 d. pH 4.5

Last Answer : pH 8.5

Read the statement given below (i ) Seeds require moisture for germination . (ii) Plant can absorb nutrients in dissolved form. (iii) Irrigation protects crop from both frost and hot air currents . (iv) Irrigation improves soil texture . a) i and ii b) i ,ii, iii c) i , ii , iii , iv . d) i and iii

Description : Read the statement given below (i ) Seeds require moisture for germination . (ii) Plant can absorb nutrients in dissolved form. (iii) Irrigation protects crop from both frost and hot air currents . (iv) Irrigation improves soil texture . a) i and ii b) i ,ii, iii c) i , ii , iii , iv . d) i and iii

Last Answer : a) i and ii

Antagonistic effect of Fe on Zn availability in sweet orange causes: a. Leaf drop b. Fruit drop c. Reduce fruit weigh d. Zn deficiency

Description : Antagonistic effect of Fe on Zn availability in sweet orange causes: a. Leaf drop b. Fruit drop c. Reduce fruit weigh d. Zn deficiency

Last Answer : Zn deficiency

Plants usually do not grow well in poorly drained soils because: a. Oxygen content is low in poorly drained soils b. The organic matter content of poorly drained soils is too high c. Poorly drained soils warm too quickly in spring d. Plant roots become engorged with water in poorly drained soils

Description : Plants usually do not grow well in poorly drained soils because: a. Oxygen content is low in poorly drained soils b. The organic matter content of poorly drained soils is too high c. Poorly drained soils warm too quickly in spring d. Plant roots become engorged with water in poorly drained soils

Last Answer : Oxygen content is low in poorly drained soils

(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 soil to supply one or more plant nutrients essential to the growth of plants. The three elements most needed in common fertilisers are Nitrogen.

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

Lack of early spring flowering from tulip bulbs planted outdoors is due to: a. Bright sunlight b. Lack of winter cooling c. Excessive moisture d. Magnesium and calcium deficiencies

Description : Lack of early spring flowering from tulip bulbs planted outdoors is due to: a. Bright sunlight b. Lack of winter cooling c. Excessive moisture d. Magnesium and calcium deficiencies

Last Answer : Lack of winter cooling

Salient factors which contribute to the fruit drop are: a. Embryo abortion b. Seed number of fruit c. Moisture supply d. All of the above

Description : Salient factors which contribute to the fruit drop are: a. Embryo abortion b. Seed number of fruit c. Moisture supply d. All of the above

Last Answer : All of the above

During storage of vegetable seeds, seed moisture should be a. Less than 10% b. Equal to 10% c. Greater than 10% d. None of above

Description : During storage of vegetable seeds, seed moisture should be a. Less than 10% b. Equal to 10% c. Greater than 10% d. None of above

Last Answer : Less than 10%

Researchers describe seed moisture contents in terms of : a. Dry weight b. Wet weight c. Percent weight d. a & b

Description : Researchers describe seed moisture contents in terms of : a. Dry weight b. Wet weight c. Percent weight d. a & b

Last Answer : a & b

The two most practical means of the home owner to control insects and diseases are: a. Mechanical and chemical b. Mechanical and biological c. Chemical and biological d. Biological and natural

Description : The two most practical means of the home owner to control insects and diseases are: a. Mechanical and chemical b. Mechanical and biological c. Chemical and biological d. Biological and natural

Last Answer : Mechanical and biological

Physiological aging activity in which plant tissues degenerate and ultimately die is called a. Senescence b. Ripening c. Climacteric d. Degeneration

Description : Physiological aging activity in which plant tissues degenerate and ultimately die is called a. Senescence b. Ripening c. Climacteric d. Degeneration

Last Answer : Senescence

The most determinant factor of soil which affects the plant growth is a. pH b. Soil composition c. Soil Texture d. Soil moisture

Description : The most determinant factor of soil which affects the plant growth is a. pH b. Soil composition c. Soil Texture d. Soil moisture

Last Answer : a. pH

A transplanted tree or shrub should be set into the ground: a. 50 percent deeper than it was originally planted b. So that the top roots are exposed to the air c. With the top of the container slightly covered d. At the same depth at which it was originally growing

Description : A transplanted tree or shrub should be set into the ground: a. 50 percent deeper than it was originally planted b. So that the top roots are exposed to the air c. With the top of the container slightly covered d. At the same depth at which it was originally growing

Last Answer : At the same depth at which it was originally growing

Dead heading is the removal of a. Dead branches b. Dead roots c. Faded flowers d. Shriveled leaves

Description : Dead heading is the removal of a. Dead branches b. Dead roots c. Faded flowers d. Shriveled leaves

Last Answer : Faded flowers

A slender trailing stem taking roots at the node is a. Runner b. Rhizome c. Tuber d. Bulbs

Description : A slender trailing stem taking roots at the node is a. Runner b. Rhizome c. Tuber d. Bulbs

Last Answer : Runner

Tap roots of plants are also called as a. Secondary roots b. Adventitious roots c. Primary roots d. Tertiary roots

Description : Tap roots of plants are also called as a. Secondary roots b. Adventitious roots c. Primary roots d. Tertiary roots

Last Answer : Primary roots

Sweet potato is propagated by: a. Stem cuttings b. Tubers c. Roots d. a & b

Description : Sweet potato is propagated by: a. Stem cuttings b. Tubers c. Roots d. a & b

Last Answer : a & b

Peat is often mixed into the growing medium of container plants because it: a. Is inexpensive b. Has good air and water holding capacities c. Has a high pH d. Absorbs excessive soluble salts

Description : Peat is often mixed into the growing medium of container plants because it: a. Is inexpensive b. Has good air and water holding capacities c. Has a high pH d. Absorbs excessive soluble salts

Last Answer : Has good air and water holding capacities

Yield of carrot is maximum at pH: a. 6.5 b. 7.5 c. 8.5 d. Below 6.5

Description : Yield of carrot is maximum at pH: a. 6.5 b. 7.5 c. 8.5 d. Below 6.5

Last Answer : 6.5

Nitrates are absorbed at pH below ___________: a. 5 b. 6 c. 7 d. 8

Description : Nitrates are absorbed at pH below ___________: a. 5 b. 6 c. 7 d. 8

Last Answer : 5

In a landscape design, properly located plants and structures. a. Can reduce heat intensity b. Need to be constantly pruned and maintained c. Block the view of the front door d. Are not essential for a good landscape design

Description : In a landscape design, properly located plants and structures. a. Can reduce heat intensity b. Need to be constantly pruned and maintained c. Block the view of the front door d. Are not essential for a good landscape design

Last Answer : Can reduce heat intensity

Cross pollination is essential in following type of vegetables. a. Monoecious b. Dioecious c. Gynoecious d. Perigynous

Description : Cross pollination is essential in following type of vegetables. a. Monoecious b. Dioecious c. Gynoecious d. Perigynous

Last Answer : Dioeciou

do we have any insect borne diseases here in maryland if so which ones

Description : do we have any insect borne diseases here in maryland if so which ones

Last Answer : I think that your MD would know and so would the health department. They keep official records. Try to keep rain water from gathering in lids or containers outside so bugs can't bred. Keep your gutters free from leaves and make sure the water runs out after a storm.

4.What measures would you take to prevent water borne diseases? -Science

Description : 4.What measures would you take to prevent water borne diseases? -Science

Last Answer : Water borne diseases can be prevented by – (i) Oral dehydration (ii) Health education (iii) Control of reservoirs (iv) Immunization (v) General hygiene, pure water

Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of (A) Ozone and iodine (B) Chlorine or its compounds (C) Ultraviolet light for irradiation of water (D) All (A), (B) & (C)

Description : Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of (A) Ozone and iodine (B) Chlorine or its compounds (C) Ultraviolet light for irradiation of water (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

Tip burn of lettuce occurs at high air temperature when the soil is _______: a. Cool b. Dry c. Hot d. Wet

Description : Tip burn of lettuce occurs at high air temperature when the soil is _______: a. Cool b. Dry c. Hot d. Wet

Last Answer : Cool

What type of mulches reduce soil temperature? a. Organic mulch b. Gray polythene c. Black polythene d. Transparent polythene

Description : What type of mulches reduce soil temperature? a. Organic mulch b. Gray polythene c. Black polythene d. Transparent polythene

Last Answer : Organic mulch

The introduction of T-DNA into plants involves (a) exposing the plants to cold for a brief period (b) allowing the plant roots to stand in water (c) infection of the plant by Agrobacterium tumefaciens (d) altering the pH of the soil, then heat-shocking the plants.

Description : The introduction of T-DNA into plants involves (a) exposing the plants to cold for a brief period (b) allowing the plant roots to stand in water (c) infection of the plant by Agrobacterium tumefaciens (d) altering the pH of the soil, then heat-shocking the plants.

Last Answer : (c) infection of the plant by Agrobacterium tumefaciens

Auxin destruction activity is inhibited by : a. Blue light b. Red light c. Green light d. None of the above

Description : Auxin destruction activity is inhibited by : a. Blue light b. Red light c. Green light d. None of the above

Last Answer : Red light

The compounds which inhibit the activity of auxins are known as: a. Auxin antagonists b. Antiauxins c. Epinostic agent d. All of above

Description : The compounds which inhibit the activity of auxins are known as: a. Auxin antagonists b. Antiauxins c. Epinostic agent d. All of above

Last Answer : Antiauxins

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 nutrients to plants is possible. 4. Reduction in the leaching of chemical nutrients is possible. Select the correct answer using the code given below - a) 1, 2 and 3 only b) 1, 2 and 4 only c) 1, 3 and 4 only d) 2, 3 and 4 only

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

Which of the following is an advantage of food processing? A. Availability of seasonal food throughout the year B. Removal of toxins and preserving food for longer C. Adds extra nutrients to some food items D. All of the above

Description : Which of the following is an advantage of food processing? A. Availability of seasonal food throughout the year B. Removal of toxins and preserving food for longer C. Adds extra nutrients to some food items D. All of the above

Last Answer : D. All of the above

When C : N ratio goes on increasing the availability of nutrients to crops will- a. Increases b. Decreases c. Does not change d. None of these

Description : When C : N ratio goes on increasing the availability of nutrients to crops will- a. Increases b. Decreases c. Does not change d. None of these

Last Answer : b. Decreases

What structure transports water and nutrients from the roots to rest of the plant?

Description : What structure transports water and nutrients from the roots to rest of the plant?

Last Answer : Xylem