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RESEARCH ABOUT OBTAINING PHOSPHATO-POTASSIUM
VITREOUS FERTILIZERS WITH CONTROLLED SOLUBILITY AND ESTABILISHING THE
PARAMETERS FOR THEIR USE IN CROP PRODUCTION |
Project description
The project proposes the
development of ecological sustainable agriculture by using as fertilizers
vitreous materials with macro and micro-elements suitable to the soil and plant
type, with controlled dissolution rate. By using vitreous materials is avoided
surface and depth pollution, the soil pH is not modified. The intense using of
classic mineral fertilizers lead to some problems such as the reach of soil
with elements that becomes in some conditions pollutants, which damages to
routs and bacteria from soil. Using of
classic fertilizers polluted surface and freatic water.
Vitreous fertilizers are
a new type of fertilizers, made of a vitreous matrix with low and controlled
solubility in water ( made of macro elements useful for plants, K, P, Mg) in
which are introduced microelements ( Mo, B, V, Fe and so on) necessary to grow
and development of plants. The quantity of microelements as oxides is 1-5%.
The main advantages of
new type of fertilizers against classical fertilizers are: greater grade of
using by plants, do not release insoluble compounds in soil, remain there all
the period of plant development, and do not polluted the freatic water.
The project proposes the
realization of a wide variety of vitreous phosphate-potassium fertilizers with
microelements and/or in reach with N and there testing in spring plants (corn
and sunflower), autumn (grains) and grape-vine, a period of three years. These
researches are necessary to align of Romania to the European Policy of making
an ecological and sustainable agriculture.
Structural
characterization of materials will be specific analyzes methods for soil (pH,
chemical composition, density, microscopy) and analyze of vegetation state
(high, foliar surface, color, number of fruits, density per surface unity and
so on), spectroscopy methods (UV-VIS-NIR), atomic force microscopy (AFM),
electronic microscopy (SEM, TEM) and methods to characterize thermal and rheological
properties (thermal expansion coefficient, viscosity and pH). Structural
characterization of obtained oxide materials, design methods and simulation
technics will be applied to deep investigation of phenomena that take place in
phosphate vitreous matrix and particularly in the relation structure-properties
with the aim to optimize the dissolving rates and the controlled release of
nutrients, necessary to plants development. The project will be finalized by
obtaining of a new type of vitreous materials used as ecological fertilizers;
the obtaining method will be the subject of patent and the way to use this type
of fertilizers in plant production. The technology to obtain these fertilizers
and the method to use them in different plant will be the object of a
technologic transfer towards a SMS from the material and agricultural sector
domain.