Results 71 to 80 of about 133,899 (262)

Decomposition rate of organic fertilizers: effect on yield, nitrogen availability and nitrogen stock in the soil [PDF]

open access: yes, 2012
The nitrogen of organic fertilizers does not fully mineralize within a season, and hence will partly become available in later years. This effect is taken into account for the first year but generally not in later fertilizer applications.
Burgt, Geert-Jan H.M.   +2 more
core  

An investigation into the fertilizer potential of slaughterhouse cattle paunch [PDF]

open access: yes, 2016
In Australia, the red meat processing industry actively seeks approaches to improve the management of solid waste from processing operations and enhance the environmental performance.
Antille, Diogenes L.   +6 more
core   +2 more sources

Еconomic-mathematical substantiation of efficiency of mineral fertilizer use in agricultural enterprises

open access: yesAgricultural and Resource Economics, 2015
The essence of the economic efficiency of mineral fertilizers use and methodology of its determination, the theoretical aspects of the production functions as the basis for planning and organization of an efficient use of mineral fertilizers, methods of ...
Olena Lushnikova
doaj  

Estimation of N2O emission factors for soils depending on environmental conditions and crop management [PDF]

open access: yes, 2009
Nitrous oxide (N2O) contributes 8% to anthropogenic global warming, of which about one third are direct emissions of agricultural soils. These N2O emissions are often estimated using the default IPCC 2006 emission factor of 1% of the amount of N applied ...
Lesschen, J.P., Velthof, G.L.
core   +1 more source

Accumulation and export of micronutrients in potato fertilized with organic-mineral fertilizer

open access: yesBioscience Journal, 2018
The response of potato plants to organo-mineral fertilization is still poorly understood. Hence, the aim of this study was to evaluate absorption and extraction of micronutrients by Agata potato cultivar in winter crop. The experiment was conducted in the municipality of Cristalina, Goiás state, Brazil, from May 26 to August 29 of 2012.
Almeida, Leandro da Silva   +6 more
openaire   +5 more sources

Critical parameters in the life cycle inventory of palm oil mill residues composting [PDF]

open access: yes, 2019
Palm oil mill's co-products (empty fruit bunch – EFB and palm oil mill effluent – POME) management is a matter of concern in Indonesia. Co-composting is a promising waste management practice that would allow a reduction of environmental impact and a ...
Admojo, Hartono Tirto   +6 more
core  

Simultaneous ammonium and phosphate recovery and stabilization from urban sewage sludge anaerobic digestates using reactive sorbents [PDF]

open access: yes, 2018
The use of low-cost inorganic sorbents as a new sustainable strategy to enhance the valorization of nutrients (N-P-K), from the urban water cycle (e.g., side streams from sewage sludge anaerobic digestion), in agriculture applications is presented.
Batis, Narjes   +7 more
core   +2 more sources

The comparative analysis of the mineral nitrogen fertilizers

open access: yesIOP Conference Series: Earth and Environmental Science, 2020
Abstract According to the results of physical and chemical modeling, the chemical form of nitrogen fertilizers has a significant effect on the thermodynamic parameters of systems with their application. The chemical activity of nitrogen in sandy soils is higher than in clay soils, and decreases in the series: potassium nitrate - ammonium
openaire   +2 more sources

Development of mineral fertilization complex mechanization

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract The intensification of agriculture, its saturation with heavy machines, and the growth in the energy saturation of tractors put forward new tasks that cannot be solved without the development of theoretical and applied research in the field of soil mechanics. It became necessary to study the mechanical processes occurring in the
I Fedorov   +4 more
openaire   +2 more sources

Determination of the Parameters of Improved Coulter for Introducing Mineral and Organic-And-Mineral Fertilizers

open access: yesСельскохозяйственные машины и технологии, 2019
When using the conventional coulters for applying organic-and-mineral fertilizers, reliable technological process cannot be ensured unless a fertilizer funnel is adapted to such fertilizers.
A. Kh. Khadzhiev   +3 more
doaj   +1 more source

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