Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Zeitschriften |
| DOI | 10.3389/fsoil.2024.1345073 |
Lizenz  |
|
| Titel (primär) | The influence of increasing mineral fertilizer application on nitrogen leaching of arable land and grassland - results of a long-term lysimeter study |
| Autor | Rupp, H.; Tauchnitz, N.; Meissner, R. |
| Quelle | Frontiers in Soil Science |
| Erscheinungsjahr | 2024 |
| Department | BOSYS |
| Band/Volume | 4 |
| Seite von | art. 1345073 |
| Sprache | englisch |
| Topic | T5 Future Landscapes |
| Supplements | https://www.frontiersin.org/articles/10.3389/fsoil.2024.1345073/full#hsm |
| Keywords | Lysimeter; Nitrogen leaching; seepage; Mineral fertilization; land use |
| Abstract | Despite various efforts to reduce nitrogen leaching from
agricultural land, the permissible nitrate concentrations in groundwater
have often been exceeded. Intensive farming is often seen as the cause
of the deterioration in water quality. Therefore, the present lysimeter
study aimed to quantify nitrogen (N) leaching at different N
fertilization levels for the agricultural land use systems of arable
land and grassland to derive suitable management measures for improving
groundwater quality.The effects of three different mineral
fertilization treatments (50%, 100%, and 150%) in arable land and
grassland use on four distinct soil types (loamy sand, sand, loam,
loess) concerning seepage formation, nitrogen concentrations, nitrogen
loads, dry matter yields and nitrogen balances were tested. The study
was conducted at the lysimeter facility of the Helmholtz Centre of
Environmental Research – UFZ at Falkenberg (northeast Germany).
Twenty-four non-weighable lysimeters with a surface area of 1 m² and a
depth of 1.25 m were managed as grassland and arable land with three
different fertilization treatments since 1985. For arable land use, N leaching differed between the studied soil types, with the highest N loads from the sand (36.6 kg ha -1 yr -1 ) and loamy sand (30.7 kg ha -1 yr -1 ) and the lowest N loads from loess (12.1 kg ha -1 yr -1 ) and loam soil (13.1 kg ha -1 yr -1 ). In contrast to grassland use, a reduction of N fertilization level by 50 % did not result in reduced N leaching for arable land, whereas a maximal 29% reduced dry matter yields was observed. An increase of N fertilization by 50 % did not cause significant enhanced N leaching at arable land use. Soil and management-related factors (soil type, texture, soil tillage, crop rotation, and others) mask the effect of increased N fertilization rates in arable land using lysimeters. For arable land use, a reduction of N fertilizer levels as the only measure was insufficient to reduce NO3 -leaching, and other strategies besides N fertilization levels are required to improve groundwater quality. Measures should be targeted to reduce N losses by mineralization processes. |
| dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=28796 |
| Rupp, H., Tauchnitz, N., Meissner, R. (2024): The influence of increasing mineral fertilizer application on nitrogen leaching of arable land and grassland - results of a long-term lysimeter study Front. Soil Sci. 4 , art. 1345073 10.3389/fsoil.2024.1345073 |
|