6751: The development of improved guidance on the use of fertility building crops in organic farming (CTE0204)

{PROJECT} The development of improved guidance on the use of fertility building crops in organic farming (CTE0204). Runs 01 May 2002 - 28 February 2006. Project leader(s): Unspecified, , ADAS Consulting Ltd. More information online at <http://www.organicsoilfertility.co.uk/>.

Summary

Description
Fertility building crops are a key component of organic rotations where they help to provide nitrogen required for optimal crop performance. It is important that rotations and managements are planned which optimise the capture and use of this nitrogen. Estimates are available of the nitrogen production from fertility building crops, but further research is required to produce a more comprehensive assessment of likely nitrogen fixation, release and availability under different circumstances. The overall objective of this project is therefore to provide guidelines to enable organic farmers to better estimate the nitrogen supply to a rotation following fertility building crops. This will be done by a mix of literature review, empirical measurements, model development and farmer participation. The results will be of value to the organic producer, providing a better understanding of nitrogen accumulation under fertility building crops and its subsequent release. Implications for pest and disease in the rotation will also be included. Advisory guidelines will be produced as a part of the project. The proposal contributes to two of DEFRA’s policy objectives. Firstly, providing practical advice in support of organic growers and, secondly, facilitating better N utilisation within the rotation, thereby helping to minimise losses of N to the wider environment (particularly losses to water).
Objective
Project Overview
The Project is proposed to start on 1 May and will last for three years. Within the three years, the main project deliverables are:
- A synthesis of the available literature on the supply of N from fertility building crops.
- Based on the literature review, an advisory leaflet, mid-project.
- Development of a model to estimate N accumulation and release.
- At the end of the project a series of farmer/grower/advisor workshops and seminars will be used to transfer/disseminate this information via presentation and distribution of the advisory booklet on fertility building crops.

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