CSET: Agriculture (172/173/174) key terms
CSET: Agriculture (172/173/174) · Get comfortable with the vocabulary.
- Soil texture
The defined particle-size mixture of sand, silt and clay under the relevant classification convention, distinguished from aggregation and arrangement.
- Soil structure
The aggregation and arrangement of soil components and pores, which can affect air and water movement without changing the underlying texture proportions.
- Cation exchange capacity
A measure of relevant positively charged ion retention under the specified method, not the total availability of every nutrient to every plant.
- Representative sample
A sample matching the actual zone and question being examined, rather than a mixture that conceals important differences among plant or soil conditions.
- Root collar
The relevant transition between stem and structural roots, which must be identified rather than assumed from the visible potting surface.
- Scion
The selected upper plant material in a compatible graft arrangement, distinct from the rootstock and from a newly fixed genetic cross.
- Vegetative propagation
Production from suitable plant material without sexual seed formation, which can preserve the selected genotype under the relevant biological conditions.
- Plant health history
A record of the species, timing, site, recent work and environmental conditions used to interpret symptoms instead of guessing from one appearance.
- Ruminant
An animal with the relevant compartmentalized digestive arrangement and microbial fermentation, distinguished from a claim that every feed is suitable.
- Roughage
A feed category characterized by relevant fiber properties, which must be interpreted with the species and full ration rather than as a complete diet.
- Heterosis
An expected crossbreeding advantage for relevant traits under the defined comparison, not a guarantee that every offspring exceeds every parent.
- Passive immune protection
Protection transferred from an external source such as appropriate colostrum, distinguished from the animal generating its own relevant active immune response.
- Nonpoint source
A diffuse contribution from relevant landscape or production pathways rather than a single identified discharge pipe or other defined point.
- Eutrophication
Nutrient enrichment that can promote excessive biological growth and related oxygen problems under the actual receiving-water conditions.
- Biodiversity
The variety of relevant biological life at appropriate levels, not merely the number of large visible animals in one location.
- Carrying capacity
The supported population level under defined environmental and resource assumptions, which can change with time and management.
- Equity
The residual interest represented by assets minus liabilities under the stated business accounting basis, rather than cash available in the bank.
- Cash flow
The timing and amounts of actual cash receipts and payments, distinguished from profit measured on another revenue and expense basis.
- Opportunity cost
The value of the next-best alternative forgone by a decision, which can include relevant monetary and nonmonetary considerations.
- Contingency allowance
An estimate allowance for defined uncertainty, which does not by itself authorize a change to contracted scope or a guaranteed price increase.
- Power take-off
A system transferring relevant rotational energy to an implement, whose presence entails actual guarding and energy-control considerations.
- Variable-rate decision
An input decision responding to mapped or sensed variation, requiring actual data quality and interpretation rather than GPS location alone.
- Scale convention
The stated relationship between drawing and actual dimensions, which must be combined with compatible units and relevant tolerances.
- Supervised experience
An organized learning arrangement with appropriate responsibility, records and feedback, distinct from unrestricted independent hazardous-work authority.