A LandWISE project:
Future proofing vegetable production requires ongoing rapid change in farm practice to meet cost pressures and increasingly stringent demands from regulators and markets for enhanced environmental performance and water quality.
It will not be easy but with support from the MPI Sustainable Farming Fund, industry and regional councils, we have started a journey.
LandWISE is partnering with growers and funders to develop and test new production and nitrogen mitigation techniques. The project draws on and supplements recent and current research to develop new generation good management practices.
We have four main areas of focus:
- precise nutrient prescription (how much is required) Test strip used to determine available N in a soil sample
- precise application (is it going where it is needed when it is needed) Ensuring the prescribed rate of fertiliser is applied
- maximising retention (ensuring leaching is minimised)
- recapturing nitrates that move beyond the root zone (constructed wetlands and wood-chip bioreactors) Installing a wood-chip bioreactor (Lincoln Agritech image)
We are drawing on previous LandWISE work including On-Farm Fertiliser Calibration, Arawhata Sediment and Drainage, and other groups’ projects including current research on quick tests for soil nitrate, fluxmeter monitoring of leaching and the use of wood-chip bioreactors to strip nitrate from drainage water.
The research side is supported with considerable extension and training. We are aware that numerous computer based decision support tools have been developed, but we have identified that many growers need considerable support and upskilling to have the knowledge, skills and experience to effectively use them.