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Nitrogen use efficiency in organic and conventional vegetable rotations.: Measured and model simulated results

Thorup-Kristensen, Kristian (2008) Nitrogen use efficiency in organic and conventional vegetable rotations.: Measured and model simulated results. In: Acta Horticulturea - Towards ecologically sound fertilization strategies for field vegetable production, p. 71.

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Summary

Vegetable cropping systems are prone to high nitrogen (N) leaching losses. Optimizing the management of each crop can reduce this problem, but not solve it. Important improvements in cropping system N efficiency can be obtained by improving the rotation, to make sure that N left by some crops are to a large extent used by the succeeding crops. However, this includes rotation and fertilization planning based on a complex set of information on many crop species, on catch crops and green manure crops and on their interaction with soil and weather conditions. Simulation models can be used in various ways to give specific advice for growers on fertilization. Models can also be used to help growers develop their growing systems by helping them to get a better understanding of the strong and weak points of their rotations in terms of N use efficiency, and on the consequences of alternative choices or management.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Keynote presentation
Subjects: Crop husbandry > Production systems > Vegetables
Farming Systems > Farm nutrient management
Environmental aspects > Air and water emissions
Research affiliation: Denmark > DARCOF III (2005-2010) > VEGQURE - Organic cropping Systems for Vegetable production
Deposited By: Thorup-Kristensen, Professor Kristian
ID Code:16318
Deposited On:29 Sep 2009 08:12
Last Modified:12 Apr 2010 07:41
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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