Decision support system to design whole farm rotations that optimise the use of available nitrogen...

Summary

Sector:
Cereals & Oilseeds
Project code:
PR258
Date:
01 April 1997 - 30 April 2000
Funders:
AHDB Cereals & Oilseeds.
AHDB sector cost:
HGCA (£170,462 - project 1644)
Project leader:
J U Smith1 , I Burns2 , A Draycott2 , M J Glendining1 , K Jaggard3 , C Rahn2 , E A Stockdale1 , D Stone2 and M Willmott2 1 IACR Rothamsted, West Common, Harpenden, Hertfordshire, AL5 2JQ 2 Horticulture Research International, Wellesbourne, Warwick, CV35 9EF 3 IACR Broom's Barn, Higham, Bury St Edmunds, Suffolk, IP28 6NP

Downloads

pr258-final-project-report pr258-appendix-i pr258-appendix-ii

About this project

Abstract

PRACTICAL SECTION FOR FARMERS AND GROWERS
Background

Why do we need models? A significant barrier to more efficient use of nitrogen fertiliser by arable farmers and horticultural growers is the lack of information on seasonal, soil-related and cultural variations in the supply of mineral nitrogen by the soil and the requirements for nutrients by the crop.

Researchers have identified many processes of nitrogen transformation and the controls exerted by climate and soil conditions. Models provide a tool for making practical use of this huge body of information and could be of enormous value in providing fertiliser recommendations and planning crop rotations on working farms.

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