Comparing yield, nutritional quality, water and nitrogen use efficiencies of deficit drip and flood irrigated sorghum
Results showed that crop and irrigation treatments had an effect on yield and water use efficiency (WUE) (Figs 3, 4). The sorghum had significantly higher yields than corn for the treatments at p = 0.05 (Tables 1, 2) even though the crop height was lower than corn...
Long-term nitrogen fertilization can increase the availability of residual phosphorus in arable soil
The agriculture in the Czech Republic has been characterized in the past thirty years by a reduction of 37% in basic fertilization with organic fertilizers, basic fertilization with phosphorus and potassium (a reduction of 73% and 82%, respectively), and conversely by...
Reduced soil N2O emission and enhanced denitrifier community size by growing grass versus bare soil
Background and objectives In terrestrial ecosystems, nitrogen (N) fertilization is the major source of nitrous oxide (N2O) emissions. Previous incubation experiments on soil N2O emission were mostly conducted without plants and, therefore, plant-microbe-soil...
Continental-scale forest growth in Europe is driven by management and further modulated by nitrogen deposition
Our analysis of continental-scale forest growth data provided further evidence that management-related stand characteristics like stand density index and stand age are key to explain annual forest increment. For some species a clear relationship of growth with...
Indonesian Nitrogen Footprint Assessment of Food Sector
The emission of reactive nitrogen (N) through the food sector is a serious problem for human health and the environment. Indonesia, as an agrarian and populous country, has a high demand for N to provide sufficient food. We calculated the food N footprint in...
A nitrogen footprint perspective for Brazilian water sector
In the process of stablishing a national politics for the water management in Brazil, the linkages between population food, energy and water consumption are rarely mentioned. In this study, we present a perspective for the water sector into Brazilian N-footprint....
Reducing nitrogen footprint of Portuguese wine
Nitrogen (N) is a key nutrient in vineyard management. The efficient use of N as fertilizer was tested in several field experiments to produce wine of low N-footprint. Agriculture practices different from the conventionally used in each vineyard partner were...
Nitrogen footprint of protein-free products
The N footprint is an indicator of N loads from individual consumption of food as well as energy. A bottom-up approach, N-calculator method, calculates the food N footprint using the N content in consumed foods, such that the N footprint of protein-free foods is...
The US nitrogen footprint: An updated approach and comparison
Over a dozen countries have calculated their per capita nitrogen footprint, but the assumptions and system bounds sometimes vary. In this paper, we propose a more detailed and improved per capita nitrogen footprint methodology to help ensure comparability and...
A Nitrogen Footprint Tool for Communities: A Case Study for Baltimore, MD, USA
The nitrogen footprint tool (NFT) provides a novel way for communities to understand their environmental impacts by quantitatively identifying reactive nitrogen (Nr) lost to the environment due to their collective activities and consumption. The nitrogen (N) footprint...