Agroecological efficiency of biomodified mineral fertilizers

Efremova, S.Yu.; Kulikova, Irina V.; Sukhova, N. V.

doi:10.1051/e3sconf/202016101115

Cited by 4 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The design of assessment tools by competence differs significantly from the tools for assessing cognitive learning outcomes. In international educational practice, approaches related to the provision of planned activities in tasks are widely used, the implementation of which is accompanied by arguments and evidence of observed manifestations of competencies with the display of results of multi-stage assessment procedures on the level scales [14][15][16][17]. In general, we can consider that the methodology of competency-based learning is still in its infancy.…”

Section: Discussionmentioning

confidence: 99%

International criteria for assessment of accreditation of educational activities

Efremova

2020

E3S Web Conf.

View full text Add to dashboard Cite

The article gives a comparative and analytical review of the national systems of accreditation of educational programs according to European, Asia-Pacific and Russian standards of quality assurance in higher education. The emphasis is on the structuring of the main provisions and features of foreign and domestic accreditation systems in the field of education. The main universal blocks of educational activity assessed at accreditation are identified: management of educational process, resources and provision of educational activity, competence and qualification model of a graduate. In accordance with the principles of international and national standards, the requirements to the accreditation procedures of educational activity are set out in the main (universal) diagnostic blocks. For the evaluation of educational activity during the accreditation of higher education institutions the criteria of achievements are given. It is noted that the most important criterion of quality of education at accreditation is the evaluation of educational achievements of students. Difficulties of evaluation of educational results and ensuring their comparability at the international level for understanding the quality of training of specialists in different educational systems are noted. The lack of reliable evaluation tools creates certain difficulties in accreditation. The most problematic is the development and application of evaluation materials with planned activities to identify the levels of competence of students and graduates.

show abstract

Section: Discussionmentioning

confidence: 99%

International criteria for assessment of accreditation of educational activities

Efremova

2020

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

“…The use of biological mineral fertilizers can reduce the fertilizer dose by 20-30% without losing biological efficiency [23]. This is a new biotechnology which has had great success in ecology, agriculture, regulation of soil functions, and conservation of biodiversity.…”

Section: Introductionmentioning

confidence: 99%

“…The use of these fertilizers in agricultural technologies is an additional method to increase plant productivity, and improve soil quality and biological activity. The use of biological mineral fertilizers can reduce the fertilizer dose by 20–30% without losing biological efficiency [ 23 ]. This is a new biotechnology which has had great success in ecology, agriculture, regulation of soil functions, and conservation of biodiversity.…”

Section: Introductionmentioning

confidence: 99%

Phosphate Solubilizing Microorganism Bacillus sp. MVY-004 and Its Significance for Biomineral Fertilizers’ Development in Agrobiotechnology

Mažylytė

Kaziūnienė

Orola

et al. 2022

Biology

View full text Add to dashboard Cite

In this study, a phosphate solubilizing microorganism was isolated from the soil of an agricultural field in Lithuania. Based on 16S rRNA gene sequence analysis, the strain was identified as Bacillus sp. and submitted to the NCBI database, Sector of Applied Bio-catalysis, University Institute of Biotechnology, Vilnius, Lithuania and allocated the accession number KY882273. The Bacillus sp. was assigned with the number MVY-004. The culture nutrient medium and growth conditions were optimized: molasses was used as a carbon source; yeast extract powder was used as an organic source; NH4H2PO4 was used as a nitrogen source; the culture growth temperature was 30 ± 0.5 °C; the initial value of pH was 7.0 ± 0.5; the partial pressure of oxygen (pO2) was 60 ± 2.0; the mixer revolutions per minute (RPM) were 25–850, and the incubation and the fermentation time was 48–50 h. Analysis using Liquid Chromatography Time-of-Flight Mass Spectrometry (LC-TOF/MS) results showed that Bacillus sp. MVY-004 produced organic acids such as citric, succinic, 2-ketogluconic, gluconic, malic, lactic, and oxalic acids. Furthermore, the experiment showed that Bacillus sp. MVY-004 can also produce the following phytohormones: indole-3-acetic (IAA), jasmonic (JA), and gibberellic (GA3) acids. In the climate chamber, the experiment was performed using mineral fertilizer (NPS-12:40:10 80 Kg ha−1) and mineral fertilizers in combination with Bacillus sp. MVY-004 cells (NPS-12:40:10 80 Kg ha−1 + Bacillus sp. MVY-004) in loamy soil. Analysis was performed in three climate conditions: normal (T = 20 °C; relative humidity 60%); hot and dry (T = 30 °C; relative humidity 30%); hot and humid (T = 30 °C; relative humidity 80%).

show abstract

“…Maintaining soil fertility is relevant in agriculture, and is associated with the reproduction of organic matter. This issue can be solved by the development and implementation of technologies using waste (manure, plant residues) [14] and the biologization of the production of mineral fertilizers [15,16]. Numerous studies prove that the use of SS as an organomineral fertilizer will restore the ecological functions of the soil and improve its properties [12,[17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Resource-Saving Technology Based on Sewage Sludge

et al. 2021

View full text Add to dashboard Cite

The issues of waste disposal are currently having a global technological and economic complexity. The severity of the environmental problem is specified by the accumulation of large volumes of various wastes, including sewage sludge (SS). Modern technologies can provide its disposal with environmental and economic benefits. SS is a rich source of nutrients with a high fertilization potential. This work aims to study the utilization of wastewater sludge in recycling technology for agriculture. The composition of urban sewage sludge and its impact on the properties of gray forest soil were studied. It was shown that its application in a dose of 40-60 t/ha promoted an increase in the content of humus, mobile phosphorus and exchangeable potassium in the soil and a decrease in acidity. The noted increase in the content of the studied heavy metals upon the introduction of various doses of sludge did not exceed the approximate permissible concentration (APC) in the soil. The results showed that the use of SS as a fertilizer restores the balance of organic matter in soils and improves their agroecological properties. This technology, as a safe way of recycling waste into a valuable complex fertilizer, contributes to resource conservation.

show abstract

Agroecological efficiency of biomodified mineral fertilizers

Cited by 4 publications

References 0 publications

International criteria for assessment of accreditation of educational activities

International criteria for assessment of accreditation of educational activities

Phosphate Solubilizing Microorganism Bacillus sp. MVY-004 and Its Significance for Biomineral Fertilizers’ Development in Agrobiotechnology

Resource-Saving Technology Based on Sewage Sludge

Contact Info

Product

Resources

About