nzavocado.co.nz
New Zealand Avocados

index

Irrigation

Water movement in horticultural systems
How is water gained by horticultural systems?
How is water lost by horticultural systems?
Soil water status
Where do we find water in soils?
Why is soil water status so important in horticultural systems?
How do horticulturalists describe water status?
Water, stress, and crop growth
How do water needs of the different parts of plants differ?
What are critical growth periods?
How can I make water stress work for my crop?
Estimating evapotranspiration 1 - Pan
Why use an evaporation pan?
What factors influence behaviour of an evaporation pan?
How will I calculate ET?
Estimating evapotranspiration 2 - Max and min temperatures
What are the pros and cons of orchard-level predictions of evapotranspiration?
How does the Hargreaves method for predicting evapotranspiration work?
How can I gain high quality data to support it?
How can I calculate ET?
Estimating soil moisture by feel and appearance
How do you collect "the data"?
How do you interpret your observations?
What are the problems with this method?
Tensiometers
What is a tensiometer?
How do they work?
How are they used?
What is the best way to install them?
How do you interpret their readings?
How often do tensionmeters need maintenance?
Electrical resistance blocks
How do they work?
How are they used?
How are they installed?
How are the readings interpreted?
What maintenance requirements and problems do they have?
Dielectric soil moisture sensors
How do they work?
How are they used?
How are they installed?
How are the readings interpreted?
What maintenance requirements and problems do they have?
Neutron probes
How do they work?
How are they used?
How are they installed?
How are the readings interpreted?
What maintenance requirements and problems do they have?
Scheduling overview
How can you measure the water content of your soil?
How do you relate the water content of your soil to your crop's needs?
How much water do you need to apply?
Micro-irrigation
What is micro-irrigation?
Why micro-irrigation?
How does micro-irrigation interact with features of your orchard?
Maintaining microirrigation systems
What do you need to know about the quality of your irrigation water?
How can you best remove suspended material?
What factors are important in a flushing schedule?
How can you avoid microbial blockage of emitters?
How can you avoid chemical blockage of emitters?
Measures of sustainability
Why be concerned about the sustainability of irrigation on my enterprise?
What are potential indicators of irrigation sustainability?
Planning for sustainability
Why plan for developing sustainable irrigation practice on my enterprise?
Why formulate a vision?
What should my goals be like?
What advantages will my strategies provide?
What will the associated actions be?
Water quality
Why should you worry about the quality of water entering your property?
Why should you worry about the quality of water leaving your property?
Brownheaded leafroller
Horticultural significance
Damage
Identification
Host plants
Distribution
Life cycle
Control

AvoTools | Spray Diary | Consumers | Links | Contact Us