crop establishment Flashcards
what are the physical factors for the building of Hort crops
environmental: erosion risk, flood risk, irrigation water, topography, drought
soil: soil type, drainage, texture, structure,
chemical: Ph organic matter
spatial: the location climate and land use capabilities
climatic: frots, rainfall, sunshine, hail, wind,
what are plant cultural needs
Nutrition: adjust soil Ph, trace elements and NPK
Irrigation:
shelter:
what is NZ GAP
NZ Good Agricultural Practice
launched as approved supplier programme
now HortNZ driven
emphasis on acceptable quality standards, food safety and sustainable production systems
what are the capital factors for building a Hort production
structural: building, plant, roading, infrastructure
investment - including tech: existing, future
Natural: shelter water access locality
people: skills, experience, loyalty
what are the social factors when building a hort crop
relationship between industry and community
health and safety requirements
any biosecurity risks
how sustainable is your system
economic factors for building a hort crop
industry: policies developed, political positioning, representitive bodies such as HORTNZ
internal: factors within the production unit such as ownership structure
external: factors beyond producers controll such as NZD
why graft in fruit production
uniformity
desirable characteristics eg dwarfing
easier to grow
drives consistency
breeding advantages
rapid cultivar change
strength/stress resistance
why transplant crops
extend growing season
increased plant survivability
greater protection against pests and diseases
plant quality -uniformity
labour demands and costs
why is transplanting not used everywhere
historical reasons
low labour costs
plant performance concerns
the cost of transplants
what is crucial in terms of transplant plug
compact growth habit
fits requirements of planting systems
good root development
free from disease/other issues
important factors for transplant production
crop protecting: glasshouse etc
microclimate
media
nutrition
irrigation
timings
veriety
