National Repository of Grey Literature 2 records found  Search took 0.03 seconds. 
Farming practices for efficient use of nitrogen and reduction of its losses: Certified methodology for practice
Klír, Jan ; Haberle, Jan ; Růžek, Pavel ; Šimon, Tomáš ; Svoboda, Pavel
The methodology describes the main risks of nitrogen losses and recommended practices for their reduction. Practically applicable methods for the evaluation of the nitrate leaching risk depending on the soil, crop, root range, croping system, irrigation and weather conditions are described in detail. Consequently, suitable soil treatments and fertilization are proposed to improve the utilization of the nitrogen and uniformity of the water soaking.
Fulltext: Download fulltextPDF
Methods for identification of vulnerable zones for nitrogen leaching in arable land
Zemek, František ; Pikl, Miroslav ; Holub, Petr ; Klem, Karel ; Záhora, J. ; Vavříková, J.
The methodology demonstrates on the case study of a catchment (cca 200 km2 in size) how to identify the areas with high risk of nitrogen (N) leaching to underground water in arable land. It uses synergy between “conservative” characteristics of the catchment, such as orographic features, bedrock and soil hydrological properties, and the dynamic ones, which are represented by vegetation properties. The latter are identified through the imaging spectroscopy of wheat canopy obtained from airborne hyperspectral and/or Sentinel-2 multispectral data.

Interested in being notified about new results for this query?
Subscribe to the RSS feed.