Soil Science – Agriculture Board Exam Reviewer (Set 1)

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Question of
Plants with too much nitrogen will responds the following ways, except one:
- Soft , weak , easily injured is encourage
- Soft growth is more prone to diseases
- Overly rapid growth slows maturity of many crops
- Too rapid growth also hasten the hardening process that protects many plant winter colds
Question of
Functions of soils in our ecosystem , are as follows except one:
- Soil supports the growth of higher plants
- Soil properties are the principal factor controlling the fate of water in the hydrologic system
- The soil functions as nature’s cycling system
- Soil provide habitat for a myriad of living organisms
- In human –built ecosystems, soil plays an important role as an engineering medium
Question of
Plant roots depend on the process of respiration to obtain energy . Which is the trueabout root respiration.
- Produces oxygen (O2)
- Produces carbon dioxide (CO2)
- Uses oxygen (O2)
- Produces oxygen (O2) and Produces carbon dioxide (CO2)
- Produces carbon dioxide (CO2) and Uses oxygen (O2)
Question of
These are three general classes of alluvial deposits of parent material , they are as follows , except one:
- Floodplains
- Eolian
- Alluvial fans
- Deltas
Question of
Organic material accumulates in wet places where plant growth exceeds the rate of residue decomposition . These residues sink into the water , where their decomposition is limited by lack of oxygen . As a result organic deposits often accumulate up to several meters in depth . Collectively , theses organic deposits is called
- Loess
- Solum
- Mull
- Kame
- Peat
Question of
Physical disturbance and mixing of soil horizons by animals is called
- Humification
- Aeration
- Concretion
- Pedoturbation
Question of
Factor in wind erosion which relates mainly to texture and structure
- Soil erodability
- Soil roughness
- Climatic condition
- length of field
Question of
The most common method of applying starter is called
- Broadcasting
- Banding
- Topdressing
- Side dressing
Question of
Any material applied to soil or plants to supply essential elements is called
- Lime
- Green manure
- Fertilizer
- Garden soil
Question of
Complete fertilizer contain how many nutrient?
- 1
- 2
- 3
- 4
Question of
A processes that fixes nitrogen from the air to make ammonia
- Manufacturing process
- Industrial process
- Haber process
- None of choices
Question of
The first commercial nitrogen fertilizer was actually organic called
- Urea
- Guano
- Cattle manure
- Green manure
Question of
Mineral fertilizer is dissolve very slowly , and so their usefulness as fertilizer is limited
- Chicken dung
- Urea
- Ammonium phosphate
- Lime
Question of
This fertilizer considered “slow-release” fertilizer because they do not act quickly , contain low amounts of nutrient and nutrients are released slowly over the growing season . This fertilizer become the expensive nutrient sources
- Organic fertilizer
- Mineral fertilizer
- Inorganic fertilizer
- Chemical fertilizer
Question of
This fertilizer contain high nutrient in which the nutrient dissolve quickly in the soil for fast growth response . Most modern growers main use this fertilizer
- Organic fertilizer
- Mineral fertilizer
- Inorganic fertilizer
- Chemical fertilizer
Question of
The most common fluid fertilizer is in the form of what?
- Suspension
- Solution
- Solum
- Spodosol
Question of
The sum total of all tillage operations , cropping practices , fertilizer , lime and other treatments conducted on or applied to a soil for the production of plants
- Soil conservation
- Soil management
- Soil physics
- Soil chemistry
Question of
Indicates the primary nutrient content of the fertilizer is
- Fertilizer ratio
- Fertilizer grade
- Fertilizer analysis
- Fertilizer filler
Question of
Factors govern the soil development includes the following , except:
- Parent material
- Climate / time
- Life / topography
- Topography/water
Question of
Most mineral soils come from parent materials moved from one area to another by the following, except:
- Ice
- Water
- Wind
- Man
Question of
Soil particles which have the best holding ability for nutrient is called
- Silt
- Sand
- Clay
- Sand /loam
Question of
A plant nutrient which stimulates the growth of plant tissues particularly of the leaves , making them large and dark green in abundance
- Potassium
- Phosphorus
- Nitrogen
- Calcium
Question of
An ideal soil characteristics for plant growth which facilitate the penetration through the soil mass of plant roots seeking plant food is called
- Depth
- Fertility
- Porosity
- Moisture
Question of
This element exceedingly important to plants for two chief reasons ; 1) its presence in the soil neutralizes acids and increases the numbers and vigor of the nitrogen-fixing bacteria and ( 2) essential to the carbohydrates and protein metabolism of the plant . What is this mineral element?
- Calcium
- Magnesium
- Iron
- Sulfur
Question of
Describes the ability of the soil to “bounce back “ to functional health after a severe disturbance has disrupted normal processes
- Stability
- Resilience
- Duration
- Sustainability
Question of
The most important macroanimals in the soils. They are egg-laying hermaphrodites that eat detritus , soil organic matter and microorganism
- Termites
- Earthworms
- Ants
- Crickets
Question of
Land slope , rainfall , vegetative cover and management practices are important consideration in minimizing what fate of nutrient loss in the soil?
- Losses through leaching
- Losses through volatilization
- Losses through run off and erosion
- Crop removal
Question of
Which is not true statement on fertilizer application?
- There is the right amount of fertilizer to apply to the soil for plant to get maximum profit.
- The right amount of fertilizer will depend on the price of fertilizer in relation to increase in yield
- The profit from fertilizer applied is high during the rainy season than in dry season
- The right amount of fertilizer for high yield will vary with the variety of the crop
Question of
Which among the fertilizer enumerated is not a single element fertilizer?
- Ammonium sulfate
- Muriate of potash
- Ammonium chloride
- Ammophos
Question of
Which among the statement is not true to organic fertilizer?
- Promotes growth of earthworms
- Results in better soil structure / soil aeration
- Contain very large amount of mineral nutrient
- Increase water holding capacity
Question of
These nutrient losses of the soil is due to the biological and chemical reaction in the soils that change the nutrients into gaseous forms.
- Loss through volatilization
- Losses through leaching
- Losses through run-off and erosion
- Evaporation
Question of
Ammonium sulfate is
- 0 – 0 – 60
- 25 – 0 – 0
- 45 – 0 – 0
- 21 – 0 – 0
Question of
Plant gets its nutrient through
- Air / water
- Soil
- Fertilizer
- All of the choices
Question of
Too much nitrogen fertilizer in the soil results in
- Too much reproductive growth
- Too much vegetative growth
- Too much senescence growth
- None of the choices
Question of
Measure the volume of the soil that holds air and water and usually expressed in percentage of soil volume not occupied by solid materials is called
- Soil permeability
- Soil consistency
- Soil porosity
- Soil texture
Question of
Ammonium chloride is
- 21 – 0 – 0
- 0 – 0 – 60
- 25 – 0 – 0
- 45 – 0 – 0
Question of
A commercial fertilizer nitrogen fertilizer are most to give best results under the following conditions ;except:
- Where little or no farm manure has been applied
- Where legumes and other deep-rooted legumes have not been grown for 6 months
- Where soil is well supplied with phosphorus and other mineral nutrients
- Where topsoil has been removed by land leveling or erosion
Question of
Yellowing start at margin of leaves and extends toward center . In advanced stages , yellow area turn brown , and leaves appears scorched around margins . Older leaves drop , what nutrient deficiency does a plant has?
- Nitrogen
- Phosphorus
- Potassium
- Sulfur
Question of
Phosphorus fertilizer are mostly to give best results under the following conditions, except:
- Where the soil is low in organic matter
- Where soil is low in available nitrogen
- Where soil has high lime content
- Where appreciable quantities of phosphate fertilizer have not been applied in recent year
Question of
A factor that affects the growth of plants . This factor affects the solubility of plant food and microbial activities in the soil is called
- Soil pH
- Soil porosity
- Soil Texture
- Soil consistency
Question of
The portion of the soil that includes animal and plant remains at various stages of decay
- Soil water
- Soil mineral
- Soil organic matter
- Soil pore
Question of
The important foods for soil microflora , which rapidly break them down to carbon dioxide and water
- Protein
- Carbohydrate
- Fats
- Vitamins
Question of
Humus not only stores nutrients , but it also makes several nutrients more available for plant use . As organic matter decays it release mild acid which dissolve soil minerals , freeing them for plant use. This acid is called
- Sulfuric acid
- Acid soil
- Humic acid
- Acetic acids
Question of
Organic matter causes soil particles to clump together to form what?
- Soil consistency
- Soil texture
- Soil aggregate
- Soil porosity
Question of
A way in maintaining soil organic matter which preserves organic matter in the soil primary because less of the top soil which is high in organic matter , is lost to erosion
- Crop residue application
- Green manuring
- Conservation tillage
- Gravitational water
Question of
The science that deals with the influence of soil on living things , particularly plants , including human use of land for plant growth is called
- Pedology
- Edaphology
- Soil Science
- Soil management
Question of
Parent materials comprise what of a typical soil profile
- A
- A 1
- B
- C
Question of
A deposit of rock and soil resulting from materials sliding down a slope under the force of gravity
- Colluvial deposits
- Loess deposits
- Glacial deposits
- Eolian deposits
Question of
The application of animal manure results to , except:
- Retain more water for plant use
- High pH
- High yield
- High profit
Question of
The squeezing together of soil particular by the weight of farm and construction equipments, vehicles and animal and foot traffic reduces the average pore size and total air space which results to what of soil?
- Soil consociation
- Soil monolith
- Soil compaction
- Soil reaction

Report

Soil Science – Agriculture Board Exam Reviewer (Set 1)

Plants with too much nitrogen will responds the following ways, except one:

Functions of soils in our ecosystem , are as follows except one:

Plant roots depend on the process of respiration to obtain energy . Which is the trueabout root respiration.

These are three general classes of alluvial deposits of parent material , they are as follows , except one:

Physical disturbance and mixing of soil horizons by animals is called

Factor in wind erosion which relates mainly to texture and structure

The most common method of applying starter is called

Any material applied to soil or plants to supply essential elements is called

Complete fertilizer contain how many nutrient?

A processes that fixes nitrogen from the air to make ammonia

The first commercial nitrogen fertilizer was actually organic called

Mineral fertilizer is dissolve very slowly , and so their usefulness as fertilizer is limited

This fertilizer considered “slow-release” fertilizer because they do not act quickly , contain low amounts of nutrient and nutrients are released slowly over the growing season . This fertilizer become the expensive nutrient sources

This fertilizer contain high nutrient in which the nutrient dissolve quickly in the soil for fast growth response . Most modern growers main use this fertilizer

The most common fluid fertilizer is in the form of what?

The sum total of all tillage operations , cropping practices , fertilizer , lime and other treatments conducted on or applied to a soil for the production of plants

Indicates the primary nutrient content of the fertilizer is

Factors govern the soil development includes the following , except:

Most mineral soils come from parent materials moved from one area to another by the following, except:

Soil particles which have the best holding ability for nutrient is called

A plant nutrient which stimulates the growth of plant tissues particularly of the leaves , making them large and dark green in abundance

An ideal soil characteristics for plant growth which facilitate the penetration through the soil mass of plant roots seeking plant food is called

This element exceedingly important to plants for two chief reasons ; 1) its presence in the soil neutralizes acids and increases the numbers and vigor of the nitrogen-fixing bacteria and ( 2) essential to the carbohydrates and protein metabolism of the plant . What is this mineral element?

Describes the ability of the soil to “bounce back “ to functional health after a severe disturbance has disrupted normal processes

The most important macroanimals in the soils. They are egg-laying hermaphrodites that eat detritus , soil organic matter and microorganism

Land slope , rainfall , vegetative cover and management practices are important consideration in minimizing what fate of nutrient loss in the soil?

Which is not true statement on fertilizer application?

Which among the fertilizer enumerated is not a single element fertilizer?

Which among the statement is not true to organic fertilizer?

These nutrient losses of the soil is due to the biological and chemical reaction in the soils that change the nutrients into gaseous forms.

Ammonium sulfate is

Plant gets its nutrient through

Too much nitrogen fertilizer in the soil results in

Measure the volume of the soil that holds air and water and usually expressed in percentage of soil volume not occupied by solid materials is called

Ammonium chloride is

A commercial fertilizer nitrogen fertilizer are most to give best results under the following conditions ;except:

Yellowing start at margin of leaves and extends toward center . In advanced stages , yellow area turn brown , and leaves appears scorched around margins . Older leaves drop , what nutrient deficiency does a plant has?

Phosphorus fertilizer are mostly to give best results under the following conditions, except:

A factor that affects the growth of plants . This factor affects the solubility of plant food and microbial activities in the soil is called

The portion of the soil that includes animal and plant remains at various stages of decay

The important foods for soil microflora , which rapidly break them down to carbon dioxide and water

Humus not only stores nutrients , but it also makes several nutrients more available for plant use . As organic matter decays it release mild acid which dissolve soil minerals , freeing them for plant use. This acid is called

Organic matter causes soil particles to clump together to form what?

A way in maintaining soil organic matter which preserves organic matter in the soil primary because less of the top soil which is high in organic matter , is lost to erosion

The science that deals with the influence of soil on living things , particularly plants , including human use of land for plant growth is called

Parent materials comprise what of a typical soil profile

A deposit of rock and soil resulting from materials sliding down a slope under the force of gravity

The application of animal manure results to , except:

The squeezing together of soil particular by the weight of farm and construction equipments, vehicles and animal and foot traffic reduces the average pore size and total air space which results to what of soil?

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