Journal of Central European Agriculture, 2005 The effect of system mineral and organic-mineral fertilization on the humus content and humus fractions in mollic fluvisols in condition of long-term fi eld experiment was studied. Forty years period of organic-mineral fertilization (N420P260K380 + 27 t/dka manure) have had stabilizing effect on humus content in the soil.
TOMOV, TONI, ARTINOVA, NEDIALKA
openaire +2 more sources
The K-trial. A 33-years study of the connections between manuring, soils and crops [PDF]
, 2005 In 1958 started a comparative fertilization trial, called the K-trial, within the frames of Scandinavian Research Circle for Biodynamic Agriculture. The trial ended in 1990.
Granstedt, Artur, Kjellenberg, Lars
core
Forest Soil Carbon and Nitrogen Cycles under Biomass Harvest: Stability, Transient Response, and Feedback [PDF]
, 2016 Biomass harvest generates an imbalance in forest carbon (C) and nitrogen (N) cycles and the nonlinear biogeochemical responses may have long-term consequences for soil fertility and sustainable management.
Parolari, Anthony J. +1 more
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Chemical Speciation & Bioavailability, 2018 Soil humus degradation strengthens nutrient mining, especially phosphorus. This study was carried out on the Ukrainian Forest-Steppe Zone (UFSZ). A total of 21 soil profiles have been investigated: 11 Phaeozems, 6 Luvisols, and 4 Chernozems.
Waldemar Spychalski +3 more
doaj +1 more source
Agrology, 2018 The agrochemical state of sod-podzolic soils of thе Western Polissya is analysed area of next agro-industrial groups: 27b – sod-podzolic gley-dried clay-sandy, 14b – sod-podzolic and podzolic-sod gley clay-sandy soils; 5b – sod-podzolic and non-glued and
D. V. Lyko +4 more
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CO2FIX at the landscape level - an application for the Veluwe area, the Netherlands [PDF]
, 2001 The carbon fixation model CO2FIX was adapted to run on landscape scale, and was applied to the Veluwe area, a forested region in the Netherlands. After a simulation of 500 years, the average carbon stock per hectare in the forest products compartment is ...
Nabuurs, G.J., Schelhaas, M.J.
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Changes in the soil organic carbon balance on China’s cropland during the last two decades of the 20th century [PDF]
, 2017 Agro-ecosystems play an important role in regulating global changes caused by greenhouse gas emissions. Restoration of soil organic carbon (SOC) in agricultural soils can not only improve soil quality but also influence climate change and agronomic ...
Frolking, Stephen E. +7 more
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The content and composition of humus of chestnut saline soils of various agricultural uses in the conditions of the dry steppe of the Western Manych valley [PDF]
E3S Web of ConferencesThe results of a study on the comparative characteristics of the content and composition of humus of virgin and chestnut saline soils of various agricultural uses in the conditions of the dry steppe of the Western Manych valley are presented.
Iljina L. P. +2 more
doaj +1 more source
Modelling Carbon Cycles as Basis of an Emission Inventory in Farms – The Example of an Organic Farming System [PDF]
, 2005 In organic farms, the internal carbon fluxes are of great importance. They are connected with soil fertility (humus contents, biological activity, soil structure) and the yield potential; some C pools (C fixation in humus) and C fluxes (CO2 and CH4 ...
Huelsbergen, Kurt-Juergen +1 more
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Ecosystem recharge by volcanic dust drives broad-scale variation in bird abundance [PDF]
, 2015 Across the globe, deserts and volcanic eruptions produce large volumes of atmospheric dust, and the amount of dust is predicted to increase with global warming.
Aradóttir +67 more
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