winegrowrs' knowledge levels, problem awareness and management changes regarding nitrogen. The study's core was a standardized …

including changes in (i) rates of nitrogen application, (ii) supplementary irrigation and (iii) new cultivar (with higher … traditional cultivars and average nitrogen application rates of <10 kg N ha-1. The model results showed that the combined changes …

nitrogen fertilization rate, b) adjustment of sowing date, c) implementation of new cultivars, and d) supplementary irrigation … global datasets at 0.5ê x 0.5ê spatial resolution. The nitrogen and cultivar packages were tested for all six countries … improvements across the packages were obtained by increase in nitrogen application rate, assuming that other nutrients like …

nitrogen and phosphorus from agriculture, the wastewater sector and the air pathway into groundwater, surface waters and the … Institute calculated nitrogen balances of agriculture on municipal areas and an analysis of the effect of the amended Fertiliser …

polluted areas. Against this background, a tool was developed that quantifies agricultural nitrogen emissions with high spatial … resolution, at the municipality level and also within the municipality. The results provide detailed nitrogen budgets for the … monitoring, and to inform agricultural nitrogen management. The results enable the identification of pollution hot spots as well …

winegrowrs' knowledge levels, problem awareness and management changes regarding nitrogen. The study's core was a standardized …