Results 21 to 30 of about 144,098 (358)

Biosorption of Microelements by Spirulina: Towards Technology of Mineral Feed Supplements

The Scientific World Journal, 2014
Surface characterization and metal ion adsorption properties of Spirulina sp. and Spirulina maxima were verified by various instrumental techniques. FTIR spectroscopy and potentiometric titration were used for qualitative and quantitative determination ...
Agnieszka Dmytryk, Agnieszka Saeid, Katarzyna Chojnacka   +2 more
doaj   +1 more source

Global mineral fertilizer market analysis.

Vestnik of Astrakhan State Technical University. Series: Economics, 2020
The article presents an analysis of trends in the dynamics and structure of demand, supply, foreign trade, development factors of the world mineral fertilizer market: nitrogen, phosphate and potash segments. There have been identified the market trend of growing demand for mineral fertilizers, which has increased 6 times since 1961, the fact being ...
Arina Aleksandrovna Tinkova, Natalya Valerievna Dioujeva   +1 more
openaire   +2 more sources

Fertilizers, soil analysis and plant nutrition / [PDF]

, 1947
C36
Hoagland, D. R. (Dennis Robert), 1884-1949
core   +2 more sources

EFFECTS OF MINERAL AND ORGANIC-MINERAL PHOSPHATE FERTILIZERS ON SOIL FERTILITY PARAMETERS

Colloquium Agrariae, 2013
Organic sources can replace all or part of the mineral phosphorus used in fertilizer, providing significant changes in soil chemical properties. This research evaluated the effects of mineral and organic-mineral phosphorus on the soil fertility in maize tillage.
Carlos Sérgio Tiritan, Diego Henriques Santos, José Salvador Simoneti Foloni, Luciana Boulhosa Fabris   +3 more
openaire   +5 more sources

Boron isotope ratio (delta B-11) measurements in water framework directive monitoring programs: comparison between double focusing sector field ICP and thermal ionization mass spectrometry [PDF]

, 2010
International audienceThe aim of our research was to compare delta B-11 measurements performed with thermal ionization mass spectrometry (TIMS) and sector field-inductively coupled plasma-mass spectrometry (SF-ICP-MS) and evaluate the feasibility of ...
Aggarwal, Aggarwal, Aggarwal, Agnès Bregnot, Al-Ammar, Allan, Barth, Barth, Bassett, Boulyga, Chetelat, Chetelat, Coetzee, Coplen, David Widory, Demuth, Dongmei Xue, Eisenhut, Eisenhut, Emmanuelle Petelet, Encinar, Gaillardet, Gonfiantini, Gregoire, Gregoire, Gäbler, Heumann, Ishikawa, Jan Bronders, Kasemann, Komor, Kristof Tirez, Lemarchand, Mather, Pascal Boeckx, Spivack, Spivack, Tonarini, Vanhaecke, Vengosh, Weiser, Widory, Widory, Wilfried Brusten, Xue   +44 more
core   +4 more sources

Balance of potassium in two long-term field experiments with different fertilization treatments

Plant, Soil and Environment, 2019
Balance of potassium (K) was observed in long-term stationary field experiments (21 years) at two sites with different soil and climatic conditions (Luvisol, Cambisol).
Jiří Balík, Jindřich Černý, Martin Kulhánek, Ondřej Sedlář, Pavel Suran   +4 more
doaj   +1 more source

Simultaneous thermal analysis of mineral fertilizers, purchased in Almaty

BIO Web of Conferences, 2021
Increased demand for agricultural products leads to soil depletion and increased use of mineral and organo-mineral fertilizers. Mineral fertilizers used in agriculture may contain contaminators such as heavy metals or radionuclides that can migrate and ...
Matveyeva Ilona, Nursapina Nurgul, Bakhadur Askar, Nazarkulova Sholpan, Shynybek Balnur, Ponomarenko Oksana   +5 more
doaj   +1 more source

Introduction of fertilizers to the field surface [PDF]

E3S Web of Conferences, 2020
The work is dedicated to the introduction of dry non-organic substances to the field surface by the new proposed distributor. The article has a research character, which is expressed in the analysis of methods and units of mechanization for applying ...
Belousov Sergey V., Filippov Dmitry A.
doaj   +1 more source

Basic Fertilization with Mineral Fertilizers in Soybean Crop

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture, 2013
Rich in high nutritional value protein, likely to the protein of animal origin, soybean is considered to be “a golden plant” or “wonder plant”, aimed to resolve global protein deficiency (insuring in present 60% of humanity’s protein requirements). The mature seeds are used in human nutrition.
Valeria DEAC, Ioan ROTAR, Anamaria MÄ‚LINAȘ   +2 more
openaire   +2 more sources

Mineral Content of Mixed Fertilizer [PDF]

Bulletin of the Chemical Society of Japan, 1961
Abstract The mineral content of mixed fertilizer produced with calcium superphosphate, ammonium sulfate and potassium chloride and also the reactions during the production process were investigated by X-ray diffraction. It was observed that remarkable reactions took place between monocalcium phosphate, calcium sulfate ...
Jumpei Ando, Seiichi Matsuno
openaire   +1 more source