Lecture 2 Flashcards
Evaluating and Selecting the Environment for Crop Production (29 cards)
What is the objective of site evaluation for crop production?
To know if the site is appropriate or suitable for crop production
What are the two approaches in Assessment?
Quantitative and Qualitative
What are two techniques in evaluation?
Use of Geographic Information System and Remote sensing with GIS
What are the two crop production enterprise approaches?
- Establishment of crop, then find a suitable area
- Establishment of area, then find a suitable crop
What approach is described by the following:
- Crop feasibility study
- Determination of possible location/site
- Testing
- Full scale production
Establishment of crop, then find a suitable area
What approach is described by the following:
- In-depth characterization of the site/area
- Identify the crops option
- Testing
- Full scale production
Establishment of area, then find a suitable crop
What are the steps in crop production? (SLCCH)
SLCCH
1. Site selection and evaluation
2. Land Preparation
3. Crop establishment
4. Care and Maintenance
5. Harvesting and postharvest handling
What are examples of Dryer?
Flat-bed dryer/solar bubble dryer
What are examples of storage systems?
Hermetic storage, bag storage, and bulk storage
What are important functions of soil? (AMHWNE)
Anchorage, Medium, Habitat, Water supply, Nutrient cycling, and Engineering Medium
What is the most fertile layer of the soil profile?
Top soil
_____ is determined by
digging a pit and measure the thickness of the topsoil (from soil surface down to bedrock/ hardpan layer which obstructs downward proliferation of the root)
Soil depth
Why should soils be as deep as possible for perennial crops?
For root penetration and obtaining water and nutrients
It refers to the relative proportion of soil particles (sand, silt
and clay)
Soil texture
What kind of soil texture are ideal for most crops?
Loam
It refers to the arrangement or clustering of soil particles into characteristic aggregates.
Soil structure
For easy root proliferation, a desirable soil structure should be _______ and _______
granular and porous
It affects the availability/solubility of nutrients and activity of microorganisms (organic matter decomposition, mineralization nitrogen fixation, nutrient absorption)
Soil pH
What ideal soil characteristics are for upland crops? (DMMFHW)
Deep, moderate texture, moderate pH, fertile, high OM, well-drained
What ideal soil characteristics are for lowland crops? (DEFHMF)
Deep, excellent water-holding capacity, fertile, high OM, moderate pH, fine-texture
It refers to the average condition of the atmosphere in a given area
Climate
It determines the distribution of the crop species in the world
Temperature
It controls practically all aspects of plant growth and development; from seed germination to fruit development
Light
It is the primary source of water for crop production
Rainfall
