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WorksheetsSustainable Soil Health
Total questions: 11
Worksheet time: 5mins
What is Soil Health
is an integral part of land management and may focus on differences in soil types and soil characteristics to define specific interventions that are aimed to enhance the soil quality for the land use selected
is the capacity of soil to function as a vital living system, within ecosystem and land-use boundaries, to sustain plant and animal productivity, maintain or enhance water and air quality, and promote plant and animal health
defined as the study of the organisms and environmental conditions that cause disease in plants, he interactions between these causal agents and the plant and the methods of managing or controlling plant disease.
the upper layer of earth in which plants grow, a black or dark brown material typically consisting of a mixture of organic remains, clay, and rock particles.
The following shows the characteristics of soil pedon, except?
is the 3D unit that represents the entire soil body
Group of freedom is called polypedons
Describe the horizons from surface to bottom of excavation
Basic soil sampling unit
There were some of the soil properties can be changed, except?
Soil Structure
Soil Organic Content
Soil Texture
Soil Bulk Density
Texture is based on
Dispersing and percentage of the soil mineral fraction
Coarseness of fineness of soil mineral fraction
Roughness and softness of soil mineral fraction
Three dimensional arrangement of mineral particle and organic matter
Among the few ways of reducing tillage, which one was used to cuts down erosion?
permanent bed
deep zone-tillage
strip tillage
ridge tillage
Soil Microbial Biomass stabilized when microbial exopolysaccharides bind to clays to facilitate aggregates formation and release of such inorganic nutrients such as
Ammonium, Phosphate, Sulphate
Magnesium, Calcium
Protein, Carbohydrates
Iron, Copper, Sodium
Which of the following soil classification is dominantly organic?
Gelisols
Histosols
Incepticols
Mollisols
How many percent of the world's agricultural land has not been degraded by wind or soil erosion?
38%
50%
36%
62%
What are the hormones release during plant growth in PGPR process?
Acc-deaminase
Auxin
Ethylene
Gibberellin
GRC : living organism helps in soil formation as follows, except?
Add humus in soil
Degrade the soil quality
Act as decomposer
Add nutrient to the soil
Soil Bacteria obtain energy from plant root and produce the ___________________ that can enhance the aggregation of soil . Fill in the blank..
GPS "Global Positioning"
Mycelia
EPS "extracellular polymeric substances”
Food
