Nitrogen and phosphorus leaching losses under cropping and zone-specific variable-rate irrigation
John J. Drewry,
Carolyn B. Hedley,
Stephen J. McNeill
et al.
Abstract:Context Agricultural land use is intensifying globally. Irrigation and other farm practices associated with intensification, such as cultivation, grazing, and fertiliser application, can increase nutrient losses. Variable rate irrigation (VRI) systems manage irrigation to spatially variable soils and different crops (zones). We lack knowledge on nutrient losses under zone-specific irrigation for mixed-cropping systems (combined crop and livestock grazing). Aims This study evaluated drainage, nitrogen, … Show more
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