Ago 105 Test 1
Card Set Information
Ago 105 Test 1
Agronomy Test 1
Classification is based on?
What is a companion crop?
Annual crop planted with a perennial crop to aid in the establishment of the perennial crop
What is green manure?
Crop grown but not harvested, plowed under to improve the soil
What is a catch crop?
Crop planted after another crop after it was lost due to some disaster or or after harvest
What is a cover crop?
Crop grown to protect the soil from erosion
Life span of annual?
Life span of perennial?
One generation/ several years
One generation/ two years
Taxonomy list from general to specific?
Kingdom, phylum, class, order, family, genus & species
Gynosperms are also called?
Conifers, pine tress
What are the characteristics of gymnosperms?
Naked seed ( no seeded coat) mostly soft wooded trees
Characteristics of angiosperms?
Seed coat, and produce flowers
Characteristics of a species?
Genetically similar individuals, form interbreeding populations, produce fertile offspring, remain distinct from closely related species
capable and able of producing fertile offspring with other subspecies, differences due to environmental effects
What is a landrace?
Locally adapted plant or animal
A collection of plant material from a particular location
What is germplasm?
Collection of genetic resources
What is conventional tillage?
Using plows and equipment for clean til
Advantages conventional tillage?
Clean (weed free) and less pesticides used
Disadvantages of conventional tillage?
High fuel use, requires large equipment, more soil compaction, no crop residue
whatWhat what is conservation tillage?
Using pesticides, round up, to kelp crops clean
Advantages of conservation tillage?
Reduce compaction, reduce wind and water erosion, smaller equipment needed
Disadvantages of conservation tillage?
Reduce weed tillage, more dependence on pesticides
ExtremeExtreme conservation tillage
Cultivate next to crop, minimum 50% crop residues
Reduced till( catch all)
Rely more on round up, minimum 20% crop residue
The practice of growing only one crop over a long period of time
The regular recurrent succession of different crops on the same land -> change crops on a regular basis
The practice of growing more than one crop in the same field simultaneously
Typically practiced by alternating rows of each crop
A second crop is planted before the first crop is harvested
Practice of leaving the land idle for a period of time
The utilization of all farming practices into a consolidated system that provides for an economic return without undo harm to the ecosystem
system that prohibits the use of manufactured agrochemicals