4.4. Research Gaps
As in the agricultural report, key areas arose where growers consider more research is required. They are described briefly here.
Organic growers consider that much research done on organic production is of benefit to conventional growers too. Reducing use of chemicals and choosing environmentally softer or low-residue chemicals for pest control are key examples. Designing valid pest or disease monitoring processes and introducing pest-predators are other examples of research directly relevant to both organic and conventional growers.
A systems approach is considered particularly appropriate in examining research problems for organic growers. As an example, apple washers are very attractive for use when packing organic apples. They squirt water at the fruit to wash off lingering pests that might impede market access. These are also applicable for conventional apples too. For a particular pest, a systems approach would balance required level of control in the orchard via spraying predators or cultural controls with control able to be achieved at other stages of the system such as using apple washers after harvest.
Soil fertility and processes
A better understanding is required of responses to organic fertilisers and processes within the soil. Measures of soil activity, how this affects nutrient availability and uptake, plant growth and fruit quality would benefit growers.
Pest and disease control
Broadening the range of options for pest and disease control is important to organic growers. Chemicals, predators, cultural methods and modelling pest dynamics are all valid approaches. Research to find an alternative fungicide for apple growers would be considered a priority.
Tree and vine management
Tools and techniques to influence fruit numbers and fruit size are key issues, including being able to respond to seasonal influences. Thinning techniques for apples and enhancing fruit numbers for kiwifruit are key areas where organic growers do not have tools as effective as those used in conventional orchards.
Contact for Enquiries
Kay Brown
Sector Performance Policy
MAF Policy
Ministry of Agriculture and Forestry
PO Box 2526
Wellington
NEW ZEALAND
Phone: +64 4 894 0695
Fax: +64 4 4 894 0746
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