Bruce D Pearce

Bruce D Pearce
Organic Research Centre

About

40
Publications
23,168
Reads
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785
Citations
Citations since 2016
10 Research Items
577 Citations
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Additional affiliations
November 2021 - March 2022
Garden Organic
Position
  • Director of Horticultural Science
Description
  • • Lead and develop the scientific work of Garden Organic • Lead and develop the Heritage Seed Library • Lead and develop the advisory work of Garden Organic • Lead the policy work for Garden Organic • Development of Garden Organics work in Scotland.
April 2021 - present
The Seed Cooperative
Position
  • Seed Policy and Sector Regulation Director
Description
  • Part-time role To ensure compliance with relevant sector legislation and regulation. To ensure the practices of The Seed Co-operative are in line with its environmental and horticultural aims.
November 2020 - November 2021
Soil Association Scotland
Position
  • Senior Farming Programmes Manager
Description
  • Lead the development and delivery of Soil Association’s Farming and Land Use programmes and activities in Scotland.
Education
September 1987 - September 1990
University of Liverpool
Field of study
  • Horticulture. Plant physiology
September 1984 - July 1987
University of Wolverhampton
Field of study
  • Biological Sciences

Publications

Publications (40)
Article
Although the organic conversion process has been much studied, farm-level transitions to agroecosystems are less well understood. What transition pathways do they take? How can (or does) farmers’ learning help to make such changes? What support measures can (or do) facilitate such learning? To answer such questions, a UK study identified farmers un...
Technical Report
Full-text available
The objective of DIVERSify Task 1.1 was to “Identify tacit knowledge, bottom-up innovations, strategies and current farmer best practice in diverse cropping systems”. This was undertaken by a series of 15 participatory stakeholder workshops conducted by project beneficiaries in 11 different countries throughout the different pedo-climatic zones of...
Chapter
Agriculture is increasingly being seen as a system, a series of interacting elements occurring over a significant period of time. Organic production represents one of the more complex agricultural systems as a consequence of many of its most basic needs being met as a result of a number of linked but commonly poorly understood biological processes....
Article
Full-text available
Organic and low-input food systems are emerging worldwide in answer to the sustainability crisis of the conventional agri-food sector. "Alternative" systems are based on local, decentralized approaches to production and processing, regarding quality and health, and short supply-chains for products with strong local identities. Diversity is deeply e...
Article
Highlights • Subsidiary crops cultivation affects soil quality enhancing biochemical activity. • Subsidiary crops short-term effect on soil were similar in the mild pedo-climatic zones. • High rainfall and low temperature may reduce the effect of subsidiary crops growth on soil. • The Mediterranean north was the most suitable climate to promote...
Article
Full-text available
We assess the production impacts of a 100% conversion to organic agriculture in England and Wales using a large-scale linear programming model. The model includes a range of typical farm structures, scaled up across the available land area, with the objective of maximising food production. The effects of soil and rainfall, nitrogen (N) supply/offta...
Article
Full-text available
A crops ability to both suppress weed growth and tolerate weed competition is a key consideration when taking an agroecological approach to weed management. Amongst other cereals, oats are widely considered to have superior weed competitiveness yet studies examining competitive ability of oat varieties are rare. We investigated the ability of oats...
Article
Six cropping populations, three variety mixtures and one diversity population were developed from winter wheat varieties and studied for physical, compositional and end-use quality traits for three years (2011-2013) under different European climatic and management conditions in order to study the stability of these traits resulted by the genetic di...
Article
Full-text available
Current regulations for organic pig and poultry production systems permit feed ingredients of non-organic origin at an inclusion rate of up to 5 per cent. This is primarily due to concerns that there is an insufficient supply of organic protein on the European Union market, in terms of quality and quantity, to meet the nutritional requirements of p...
Article
Full-text available
The dynamic model Nitrogen Dynamics in Crop rotations in Ecological Agriculture (NDICEA) was used to assess the nitrogen (N), phosphorus (P) and potassium (K) balance of long-term organic cropping trials and typical organic crop rotations on a range of soil types and rainfall zones in the UK. The measurements of soil N taken at each of the organic...
Technical Report
Full-text available
LUPG Disclaimer This report was produced by the authors on behalf of the Land Use Policy Group (LUPG). The views expressed within the report are those of the contractors and do not necessarily reflect the views of the agencies within LUPG.
Article
Full-text available
Current EU regulations allow 5% of feed for organic poultry to come from non-organic production. This is due to concerns about a 100% organic diet meeting the requirements for specific amino acids such as methionine. This exception is due to end on 31st December 2017. While this may match consumer expectations, protein sourced from global organic p...
Technical Report
Full-text available
An increasingly fluctuating global climate is creating mounting problems for production in agricultural systems. One possible way to buffer these changes is with the use of genetically diverse composite cross populations. Here we demonstrate in replicated field trials that composite cross populations of winter wheat when grown in organic conditions...
Article
Growing populations and a constrained fossil-manufactured energy supply present a major challenge for society and there is a real need to develop forms of agriculture that are less dependent on finite energy sources. It has been suggested that organic agriculture can provide a more energy efficient approach due to its focus on sustainable productio...
Book
Full-text available
As costs for mineral fertilisers rise, legume-based leys are recognised as a potential alternative nitrogen source for crops. Here we demonstrate that including species-rich legume-based leys in rotations helps to maximise synergies between agricultural productivity and other ecosystem services. By using functionally diverse plant species mixtures,...
Article
Meeting the needs for a growing world population calls for multifunctional land use, which can meet the multiple demands of food and fuel production, environmental and biodiversity protection, and has the capacity for adaptation or resilience to climate change. Agroforestry, a land-use system that integrates trees and shrubs with crops and/or lives...
Article
One of the key questions of primary importance to global agriculture and food security is how to optimize sustainable intensification to balance competing demands on land for food and energy production, while ensuring the provision of ecosystem services and maintaining or increasing yields. Integrating trees and agriculture through agroforestry has...
Chapter
There has recently been an increase in interest in the “public goods” that could be provided by a farm alongside its primary function of agricultural production. This paper reviews recent reports on the topic of public goods and, in particular, the public goods provided by agriculture and then goes on to discuss the development of a tool which can...
Article
Full-text available
The paper illustrates the role and activities of Technology Platform Organics (TP Organics) in addressing the requirement that research in organic food and farming systems generates output of relevance to wider end-users. It describes approaches to research and knowledge exchange and suggests that a more participatory approach can improve organic r...
Article
Organic farming and improvements to agricultural sustainability are often seen as synonymous. However, an extensive European review demonstrated that in practice this is not always true. This study aims to compare the status of soil and water properties between separate fields managed in either an organic or a conventional manner. Soil samples were...
Article
Full-text available
This study investigates 16 pairs of farms (organic and conventional) located in England. These are over a range of soil textures: clay, silty clay loam, clay loam and sandy loam. There are also two different land uses (grass and winter wheat). The research incorporates field measurements of infiltration rates and HOST classification with modelling...
Article
Thesis (Ph. D.)--University of Liverpool, 1991.
Article
Full-text available
1. A trial was undertaken to determine whether there was an advantage in using an alternative litter in the poultry field sheds, than the usual straw, on the Sheepdrove Organic Farms (SOF) silvo-poultry production system. A chopped straw litter selected. It was intended to raise co-hort houses one on chopped straw litter the other on long straw lit...
Article
1. Organic standards and aspirations are moving towards the removal of synthetic amino acids from organic poultry rations. Sheepdrove Organic Farm has already removed synthetic amino acids from the rations fed to its chickens. Data was collected on live and dressed weight of processed birds, before, during and after the removal of synthetic amino a...

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Projects

Projects (3)
Project
Overall goals: The overarching goal of DIVERSify is to provide a novel system for sustainable food production and nutrition, resource-efficient production and value chains, and healthier diets. DIVERSify will produce knowledge and tools to support the adoption of productive and resilient agricultural systems which capitalise on the benefits of high plant species diversity, enhance understanding of how synergistic plant teams can contribute to yield stability, reduce yield losses to weeds, pest and diseases, and increase resilience against environmental fluctuations and management practices. DIVERSify is a multidisciplinary and strategic multi-actor partnership bringing together European and international centres of research excellence, farmers, extension services, breeders and SMEs. This partnership will co-construct a new applied approach and the tools to support its implementation, unravelling the mechanisms underpinning the benefits associated with cropping of plant teams (associations / mixtures of species), and the plant traits and agronomic practices promoting these benefits. This will be achieved through scientifically-proven, field-tested evidence on ecological mechanisms, concepts and methods to identify important crop traits and cultivars for plant teams, and tools and guidelines for farming practitioners in diverse pedo-climatic conditions to promote diversity-rich crop breeding and management practices.
Archived project