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Nutrient Management

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New Zealand farmers can keep more nutrients in their soil by choosing the right fertiliser for their type of land and applying it strategically, so it stays on the farm rather than draining away as pollution.

Technical Report

What are the opportunities to reduce variability in apple tree productivity through targeted (sub-block) water and nutrient application?

Most of New Zealand’s apple production occurs on soils which have formed from alluvial (river movement) deposits. These soils range from clays to sand, to…
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Technical Report

Measuring real time nitrate leaching from a Hawkes Bay onion Field

The primary objective of this project was to prove that successful real time ‘in situ’ nitrate measuring was possible using a nitrate sensor and that…
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Technical Report

A risk assessment approach for prioritising actions in farm environment plans with mahinga kai values

The project co-developed and produced a geospatial tool that is available through a webpage. The beta tool allows users (initially dairy farmers) to identify and…
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Technical Report

Nguturoa catchment ‘Seeing Understanding Believing’ project

The project focussed on building capability and capacity for change in the farming sector, to assist in creating new pathways towards future landscapes, by identifying…
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Guidance

Tech Note: Nitrate-Nitrogen Leaching in Horticulture

Two-page guidance from Ravensdown for nutrient management decisions/practices in horticulture, and the implications of these practices when combined with rainfall events resulting in drainage. Based…
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Technical Report

Orchard soil characterisation

This study aimed to explore the role of different soil properties in relation to avocado orchard yield. Data from this study will also be incorporated…
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Journal Article

Potential phosphorus losses from grassland soils irrigated with dairy factory wastewater

Applying phosphorus (P)-rich wastewater to land can significantly enrich P in topsoil and consequently increase the risk of P losses in surface runoff and leaching.…
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Guidance

Designing Freshwater Monitoring Programmes to Detect Early Improvement

This short guidance document is to support the design of freshwater monitoring programmes to detect early improvement and is for regional councils, government, and multi-agency…
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Journal Article

Do soil cadmium concentrations decline after phosphate fertilizer application is stopped: A comparison of long-term pasture trials in NZ

Stopping phosphorus (P) fertiliser can decrease topsoil cadmium (Cd) concentrations. Stopping P fertiliser applications reduced soil Cd concentrations after 21 and 26 years. Reductions only…
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Technical Report

Bananas on Northland dairy farms: An option for forage supply and effluent cycling?

This project investigated if growing bananas on Northland dairy farms has potential to increase the economic and environmental sustainability of the dairy enterprise, by: •…
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Journal Article

Assessing the leaching of cadmium in an irrigated and grazed pasture soil

To decrease topsoil cadmium (Cd) concentrations we need to make inputs < outputs. Phosphorus fertiliser is the main input of Cd and leaching the main…
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Summary

Project Summary: Bananas on Northland Dairy Farms

This article summarises the results of a Rural Professionals Fund project that aimed to investigate whether growing bananas on Northland dairy farms has the potential…
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