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Article: Nitrate accumulation under cropping in the Ferrosols of Far North Queensland wet tropics.(Statistical Data Included)
- Article from:
- Australian Journal of Soil Research
- Article date:
- March 1, 2001
- Author:
CopyrightCOPYRIGHT 2001 CSIRO Publishing. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Introduction
Recent fertiliser N mass-balance studies for the major cropping systems (sugarcane, banana, and pasture) in the wet-tropical Johnstone River Catchment (JRC) of Far North Queensland (FNQ) showed that 30-50% of the fertiliser N applied to Ferrosols leached below the crop root-zone ([is less than] 0.75 m) as nitrate (Moody et al. 1996; Prove and Moody 1997). The results also indicated an imbalance between the applied and recovered N, indicating the fate of the applied N was not fully accounted for. The amount of nitrate leaching below the crop root-zone may depend on the quantity and quality of the N fertiliser used, time and frequency of application, ...
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