HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (6) Citing Articles via Google Scholar Google Scholar Articles by Torstensson, G. Articles by Bergström, L. Search for Related Content PubMed Articles by Torstensson, G. Articles by Bergström, L. Agricola Articles by Torstensson, G. Articles by Bergström, L. Related Collections Field-Scale Studies Cover Crops Crop Systems Nutrient Cycling Water Pollution

Nutrient Use Efficiencies and Leaching of Organic and Conventional Cropping Systems in Sweden

Dep. of Soil Sci., Swedish Univ. of Agric. Sci., Uppsala, SE-75007, Sweden

View larger version (28K): [in a new window]   Fig. 1. Location of the tile-drained plots (x) in the experimental field.

View larger version (38K): [in a new window]   Fig. 2. Annual precipitation (1 July to 30 June) and average annual drainage from the plots during the 6-yr period. Maximum and minimum values of drainage are shown for the two organic systems that had replicates (n = 2 and 3). CCC, conventional with cover crops; CON, conventional; OAM, organic with animal manure; OGM, organic with green manure.

View larger version (38K): [in a new window]   Fig. 3. Annual mean values (1 July to 30 June) of concentrations (circles) and leaching loads (columns) of total N. Maximum and minimum values of leaching are shown for the two organic systems that had replicates (n = 2 and 3). CCC, conventional with cover crops; CON, conventional; OAM, organic with animal manure; OGM, organic with green manure.

View larger version (36K): [in a new window]   Fig. 4. Annual mean values (1 July to 30 June) of concentrations (circles) and leaching loads (columns) of total P. Maximum and minimum values of leaching are shown for the two organic systems that had replicates (n = 2 and 3). CCC, conventional with cover crops; CON, conventional; OAM, organic with animal manure; OGM, organic with green manure.

View larger version (39K): [in a new window]   Fig. 5. Annual mean values (1 July to 30 June) of concentrations (circles) and leaching loads (columns) of K. Maximum and minimum values of leaching are shown for the two organic systems that had replicates (n = 2 and 3). CCC, conventional with cover crops; CON, conventional; OAM, organic with animal manure; OGM, organic with green manure.

View larger version (18K): [in a new window]   Fig. 6. Mineral N content in the soil profile down to 0.9-m depth during the experimental period. Maximum and minimum values are shown for the two organic systems with replicates (n = 2 and 3). CCC, conventional with cover crops; CON, conventional; OAM, organic with animal manure; OGM, organic with green manure.