scholarly journals Influence of biopreparations on formation of elements of productivity of spring barley

2022 ◽  
Vol 354 (11-12) ◽  
pp. 72-75
Author(s):  
N. A. Ryabtseva
Keyword(s):  
Survival Rate ◽  
Water Treatment ◽  
Spring Barley ◽  
Empirical Studies ◽  
Ordinary Chernozem ◽  
Experimental Plot ◽  
Biological Products ◽  
Rostov Region ◽  
Increase In Productivity ◽  
Control Water

Relevance. The strategy for the development of agriculture in Russia and its biologization determine the relevance of our research. Empirical studies are aimed at studying the effect of biological preparations on the formation of elements of the structure of the yield of spring barley. The data presented in the work continues the research carried out in 2016–2020 in the Rostov region.Methods. Studied biopreparations are: Biodux; Trainer; Artafite; Obereg; Fulvogumate. Control — water treatment. Spraying was carried out according to the recommendations for the use of preparations: 1st — in the tillering phase, 2nd — in the heading phase. The total area under the experiments is 600 m2, the area of each variant is 25 m2, the replication is 4 times. The link in the crop rotation is “sunflower — spring barley”. The soils of the experimental plot are ordinary chernozem. Used variety is Leon.Results. In 2021, full sprouting of barley was observed on the 8th day after sowing. This is due to sufficient warming up of the sowing layer of soil (+8 °C) and moisture 28 mm (in a layer of 0–10 cm). Studies have shown that field germination of barley was 88%. The use of biological products influenced the survival rate of plants to harvest which wasmore than 80%. In the variants with the use of Biodux and Obereg, this figure was 86 and 87%, respectively. Biopreparations stimulated the growth of productive stems, productive bushiness increased in comparison with the control (1,21) to 1,28–1,33. The mass of a thousand grains in the variants exceeded the control, especially with the use of Obereg — 45,6 g, which is 2,9 g more than the control. The number of grains in an ear ranged from 17,7 to 18 pieces, which is on average 1 piece more than in the control. The highest productivity was formed by barley plants under the influence of the biopreparations Obereg and Biodux. Thus, the increase in productivity under the influence of biological products due to all elements of the productivity of barley plants has been reliably proven.

scholarly journals Mini-Implant-Retained Overdentures for the Rehabilitation of Completely Edentulous Maxillae: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 18 (8) ◽  
pp. 4377
Author(s):  
Serena Vi ◽  
Damon Pham ◽  
Yu Yian Marina Du ◽  
Himanshu Arora ◽  
Santosh Kumar Tadakamadla
Keyword(s):  
Quality Of Life ◽  
Systematic Review ◽  
Survival Rate ◽  
Data Extraction ◽  
Meta Analysis ◽  
Empirical Studies ◽  
Implant Survival ◽  
Patient Reported ◽  
Full Text Review

Purpose: Mini-dental implants (MDIs) have been used to support and retain overdentures, providing patients with a less invasive placement procedure. Although lucrative, the use of MDIs to retain a maxillary overdenture is still not an established treatment modality. This systematic review aims to answer the question: Do mini-implant-retained maxillary overdentures provide a satisfactory treatment outcome for complete edentulism? Methods: A systematic search for relevant articles was conducted to include articles published until April 2021 in the following electronic databases: CINAHL, Cochrane, EMBASE, PubMed, and Web of Science. All empirical studies evaluating the biological, survival, or patient-reported outcomes after placing mini-implant-retained overdentures in maxilla were considered for inclusion. The risk of bias was assessed by utilizing the Joanna Briggs Institute critical appraisal checklist. Study screening and data extraction were conducted by three reviewers independently. Results: The electronic search retrieved 1276 titles after omitting duplicates. Twenty articles were considered for full-text review, of which six studies were included in this systematic review. The included studies evaluated a total of 173 participants with a mean age of 66.3 years. The overall mini-implant survival rate was 77.1% (95% CI: 64.7–89.5%) with a mean follow-up time of 1.79 years (range: 6 months to 3 years). Implant survival differed significantly when comparing complete and partial palatal coverage overdentures. Those with complete palatal coverage exhibited less bone loss overall compared to partial coverage overdentures. Participants of all studies reported an increase in the quality of life and in satisfaction after rehabilitation treatment with MDIs. Conclusions: The survival rate of mini-implants retaining an overdenture in the maxilla was observed to be lower than the values reported for traditional implants in the literature. Improvements were observed in all aspects in terms of patient satisfaction, quality of life, oromyofunction, and articulation after the treatment.

Evaluation of Millipore Cartridge-type Water Treatment Systems for Microbiological Applications

1979 ◽  
Vol 42 (8) ◽  
pp. 654-655 ◽  
Author(s):  
BARBARA L. GREEN ◽  
WARREN LITSKY
Keyword(s):  
Water Treatment ◽  
Produced Water ◽  
Tap Water ◽  
Ionic Species ◽  
Distilled Water ◽  
Microbiology Laboratory ◽  
Type Water ◽  
Control Water ◽  
Q System

Two different cartridge-type water treatment systems were evaluated for use in the microbiology laboratory, employing the Distilled Water Suitability Test (DWST). The Milli-Q system fed by distilled water and the Milli-R/Q system fed by tap water both produced water acceptable for microbiological use as measured by the DWST. Concentrations of ionic species (as measured by conductivity) in Milli-Q and Milli-R/Q products were significantly lower than in the double distilled control water.

Studies to extend the dormancy of white yam (Dioscorea alata L)

1969 ◽  
Vol 74 (3) ◽  
pp. 213-219
Author(s):  
Maddineni M. Rao ◽  
Calixte George
Keyword(s):  
Water Treatment ◽  
Gibberellic Acid ◽  
Dioscorea Alata ◽  
Dormancy Period ◽  
Harvest Dates ◽  
White Yam ◽  
And Storage ◽  
Early Harvest ◽  
Storage Temperatures ◽  
Control Water

Two experiments were conducted in 1987-88 in St. Lucia with a view to extend the dormancy of white yam (Dioscorea alata L). Experiment 1 compared different harvest dates, different storage temperatures and presence or absence of the tuber "head" in cultivar Oriental. Experiment 2 studied the effect of gibberellic acid (GA) solution (1000 p/m) on the dormancy of different cultivars of white yam. Tubers from the early harvest (15 November) had the longest dormancy period (over 7 months), which decreased progressively with delay in harvesting. Storing yam tubers at 20 ± 2°C extended the dormancy by over 5 months as compared to storing them at 30 ± 2°C. The presence or absence of the tuber "head" had no effect. The interaction effects due to dates of harvest X storage temperatures and storage temperatures X manipulation were significant. Cultivars of white yam differed significantly in their dormancy period. Treating the harvested tubers with GA (1000 p/m) for 2 hours extended the dormancy by over 4 months as compared to that of the control (water) treatment.

scholarly journals Economic evaluation of the effectiveness of soybeans growing with the application of fertilizers and biological products on ordinary chernozem under irrigation conditions

2020 ◽  
pp. 48-53
Author(s):  
Olga Georgievna Shabaldas ◽  
Konstantin Igorevich, Pimonov ◽  
Anatoliy Petrovich Solodovnikov ◽  
Svetlana Sergeevna Vaytsekhovskaya
Keyword(s):  
Economic Evaluation ◽  
Steppe Zone ◽  
Ordinary Chernozem ◽  
Mineral Fertilizers ◽  
Soybean Variety ◽  
Biological Products ◽  
Biological Nitrogen

The possibilities of increasing the productivity of soybeans grown on irrigation after application of mineral fertilizers and biological nitrogen in the steppe zone of the Central Ciscaucasia have been studied. It was found that, on average, over 3 years of research, the highest yield in the experiment was when growing the mid-season variety Selecta 302 with the introduction of ammophos in doses of N12P52 and N24P104 in combination with pre-sowing inoculation of seeds with rhizotorfin - 2.68 –2.74 t / ha, which is more than in standard variant (Vilana variety) by 0.11-0.12 t / ha. Compared to the control (without fertilizers and rhizotorfin), the increase was 0.21–0.27 t / ha, or 8.5–10.9%. It is economically feasible to grow the soybean variety Select 302 on irrigation with the application of mineral fertilizers at a dose of N12P52 and pre-sowing inoculation of seeds with rhizotorfin. The profitability was 68.8%.

scholarly journals Lazurit winter wheat seeding rates in dependence to the predecessors and time of sowing in the Rostov region

2019 ◽  
Vol 20 (6) ◽  
pp. 548-556
Author(s):  
A. S. Popov
Keyword(s):  
Winter Wheat ◽  
Conflict Of Interest ◽  
Sowing Date ◽  
Ordinary Chernozem ◽  
Seeding Rate ◽  
Sowing Time ◽  
Yield Level ◽  
Rostov Region ◽  
Sowing Dates ◽  
Viable Seeds

The study is aimed at determining the optimal seeding rates for durum winter wheat Lazurit variety by various seeding dates that would provide the highest grain yield in the conditions of Rostov region. The research was carried out in 2016-2018 on ordinary chernozem after different predecessors for winter wheat (black fallow and sunflower). Studied were: the seeding rates (3 mln, 4 mln, 5 mln viable seeds per hectare after the black fallow predecessor; 5 mln, 6 mln ,7 mln viable seeds per hectare after the sunflower predecessor), and the sowing date (the 10th,20th,30th of September, the10th of October). It has been established that after the black fallow predecessor the seeding rate for durum winter wheat Lazurit variety can be reduced to 3 million viable seeds/ha on the early sowing date (September,10) and optimal sowing date (September, 20). When sowing at the end of optimal (September, 30) and acceptable (October,10) periods, the sowing rate must be 5 million viable seeds/ha. After the sunflower predecessor, on the early sowing date (September,10) and optimal sowing dates (September, 20 and 30) the sowing rate of 5 million viable seeds/ha should be used. At the end of acceptable periods (October,10) the sowing rate should be increased to 6 million viable seeds/ha. After the black fallow predecessor, the highest yield of durum winter wheat has been formed – from 4.61 to 6.06 t/ha depending on the sowing rate and time of sowing. After the sunflower predecessor the yield level ranged from 3.43 to 4.28 t/ha. The optimal sowing time for durum winter wheat Lazurit variety in the south of Rostov region has been established - from the 10th to the 30th of September. Sowing in this period provided the largest number of productive stems (after the black fallow predecessor – 476-568 pcs/m2, after the sunflower predecessor – 420-512 pcs/m2), the grain mass per ear (1.21-1.36g and 0.91-1.08g), the plant height (95-100 cm and 92-100 cm), the ear length (6 cm and 4-5 cm, respectively).Conflict of interest: the author stated that there was no conflict of interest.

scholarly journals EFFICIENCY OF FERTILIZER APPLICATION IN GROUPS OF AGRICULTURAL CROPS DEPENDING ON THE LEVEL OF WATER REGIME IN THE ROSTOV REGION

2020 ◽  
Author(s):  
I. N. Ilinskaya ◽  
◽  
V. A. Kulygin ◽  
Keyword(s):  
Water Regime ◽  
Spring Barley ◽  
Nutrient Status ◽  
Maximum Effect ◽  
Mineral Fertilizers ◽  
Agricultural Crops ◽  
Vegetable Crops ◽  
Resource Saving ◽  
Grain Crops ◽  
Rostov Region

Purpose: to determine the efficiency of mineral fertilizers and the agricultural crops response degree for the main groups (cereals, fodder, legumes and industrial crops, potatoes and vegetables) during irrigation in the aspect of resource saving. Materials and methods: the research was carried out in the Central irrigated zone of Rostov region (FSUE “Semikarakorskoe”). The object of research is different groups of agricultural crops, their reaction to the nutrient status at different levels of moisture supply. The soils of the experimental site are represented by ordinary chernozems. Field observations, research and data processing were carried out according to generally accepted methods: B. A. Dospekhov, A. N. Kostyakov, M. M. Goryanskiy. Results: as a result of the research, it was revealed that regardless the fertilizer status, the calculated water regime contributes to the agricultural crops yield increase by an average of 1.6–3.2 times in comparison with dry conditions. The calculated soil water regime contributed to a significant increase in the efficiency of fertilizers relative to rainfed growing conditions. Under different mineral fertilizers backgrounds, the maximum effect from their use increased: in the group of grain crops (spring barley) by 3.09 times, fodder (alfalfa of previous years) by 2.93 times, legumes (peas) by 2.86 times and potatoes by 4.25 times. Conclusions: the greatest effect from the fertilizers application under irrigation conditions was shown by potatoes, vegetables and grain crops. The highest return on fertilizers by an increase in yield was noted in the cultivation of alfalfa (12.67–13.83 kg) and Sudanese grass (22.00–23.44 kg), as well as potatoes (26.37–24.22 kg) and vegetable crops (22.6–33.4 kg). A severe water regime with a slight decrease in the yield of agricultural crops contributes to the irrigation water saving up to 1050–1580 m3/ha, which is very urgent under conditions of water scarcity.

scholarly journals Agroeconomic Assessment of Utilization Biologics in the Cultivation of Spring Barley in the Conditions of the Southern Steppe of Ukraine

Agrology ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 65-70
Author(s):  
V. V. Gamayunova ◽  
T. О. Kasatkina ◽  
T. V. Baklanova
Keyword(s):  
Grain Yield ◽  
Economic Efficiency ◽  
Crop Production ◽  
Spring Barley ◽  
Unit Cost ◽  
Control Treatment ◽  
Resource Saving ◽  
Biological Products ◽  
Spring Variety ◽  
The Cost

The results of research conducted in 2016‒2018 on the southern chernozem andthe effect of two varieties of spring barley extra-root feed on the formation of grain productivityare given. Based on the results obtained, indicators of agroeconomic efficiency and their changewere determined under the influence of this event (as one of the most important elements of technology)in growing the crop, including in terms of varieties. Despite the increase in productioncosts, the treatment of plant seeding with biologics contributed to a certain increase in notional netprofit, which increased with the number of feeds, reaching the highest values if used to optimizethe nutrition of Fresh florid (300 g/ha). One feeding of Stalker variety is determined at the levelof 5927, two feeding ‒ 6890, three ‒ 7320 UAH, and 3857 UAH/ha ‒ in control. The mentionedindicators were 5968, 6808, 7771 and 3980 UAH/ha, respectively, when the spring barley varietyVakula was grown. One of the most important indicators of economic efficiency decreased‒ the cost of growing a unit of production with an increase in the number of extracurricular feeding.The lowest indicator was the cost price of production of top – dressing with Fresh florid(300 g/ha ‒ according to the Stalker variety): with one extracorporeal sowing ‒ 2269.4; two treatments‒ 2173.5, and three ‒ 2166.7 UAH/t; in control, this indicator was 2638.5 UAH/t. Thesevalues were, respectively, 2262.3; 2185,8; 2105.4 and 2608.0 UAH/t when the barley spring varietyVakula was growing. The use of other biological preparations led to a certain increase in thecost of growing spring barley. The highest values were recorded when using Organic D-2 M withonly one feeding in the plant phase. In this version of the experiment the cost of growing a unitof production even slightly exceeded control, when Vakula variety was grown. The cultivation ofspring barley on the basis of resource saving using modern re-regulating substances and biologicalpreparations is advisable, because it increases not only the level of grain yield, but also themain indicators of agro-economic efficiency - net profit and profitability, and unit cost, on thecontrary, decreases. It was established that by optimizing the nutrition of spring barley on thebasis of resource saving by treating crops in the main growing seasons with biological products,along with increasing grain yield and changes in its quality, other indicators of agro-economicefficiency of crop production increase. The level of profitability in control (treatment of plantswith water) for the cultivation of barley of the spring variety Stalker was 59.2%, then in themost optimal food options it reached 93.8%, and for the Vakula variety they were determined61.0 and 99.5% respectively. The obtained agroeconomic indicators in the cultivation of springbarley made it possible to substantiate the following claims: the use of biologics to treat thesowing of spring barley plants during the main periods of vegetation increases the yield and costof grown grain. It was determined that the level of profitability of growing spring barley witha large number of feeds grew. The indicator reached its maximum value with three times theplanting of barley plants of the spring variety Vakula with Fresh florid, that is, 300 g/ha (99.5%).Two plant crops with this drug provided profitability at the level of 99.1%, and one ‒ 85.6, (incontrol ‒ 61.0%). The highest profitability of cultivation was ensured by the use of Fresh florid(300 g/ha) for optimizing nutrition three times for vegetation ‒in the phases of tillering, shootingand heading. The lowest level of profitability was ensured by the use of the preparation OrganicD-2 M for feeding barley of the spring variety Vakula: one treatment of plants ‒ at the level of60.6%, two ‒ 72.5, three treatments ‒ 78.2%. According to the results of research conductedwith two varieties of spring barley, the best biological product and terms of fertilization weredetermined in order to increase grain yield and improve its quality and agro-economic efficiencybased on the calculation of cost economic indicators. The expediency of nutrition optimizationby using modern biological products for spring barley cultivation has been confirmed.

scholarly journals Antecedent and Consequence the Human Resources Management Factors on Civil Servant Performance

2021 ◽  
Vol 1 (2) ◽  
pp. 104-116
Author(s):  
Edy Jumady ◽  
L. Lilla
Keyword(s):  
Work Environment ◽  
Corporate Culture ◽  
Work Motivation ◽  
Human Resources Management ◽  
Empirical Studies ◽  
Civil Servant ◽  
Company Culture ◽  
Increase In Productivity ◽  
Employee Needs ◽  
Research Period

This study aims to analyze the effect of motivation, work environment on performance. This type of research is explanatory research. The research sample is a civil servant at Pare-pare city, Indonesia; Data use purposive random sampling of 40 respondents. The research period was carried out in October - December 2020. The method of analysis in this study was multiple regression analysis. The results of this study indicate that work motivation and work environment have a significant effect on performance. This study proves that both theoretically and previous empirical studies explain that increasing motivation and work environment will improve civil servant performance. To get the best results, an employee needs to balance the ability to perform the task given and the willingness to complete the job. This balance can lead to an increase in productivity and an improvement in inefficiency. Motivated employees can lead to increased productivity and allow an organization to achieve higher levels of output. A healthy workplace environment: workplace culture, creating a happier corporate culture. Every company has its own corporate culture. Great company culture can keep employees productive and even help your company retain the best employees, and happy workers are also more likely to stick around

scholarly journals Maize hybrids' productivity depending on the use of biological products and bioorganic fertilizers “Nagro”

2020 ◽  
pp. 9-14
Author(s):  
S. A. Vasilchenko ◽  
G. V. Metlina
Keyword(s):  
Agricultural Research ◽  
Vegetation Period ◽  
Field Trials ◽  
Kernel Weight ◽  
Efficiency Coefficient ◽  
Experimental Plot ◽  
Net Income ◽  
Row Crops ◽  
Biological Products ◽  
Bioorganic Fertilizer

The field trials were carried out in 2018-2019 in the laboratory for cultivation technology of row crops of the FSBSI Agricultural Research Center “Donskoy” (Zernograd). The experimental plot was located in the southern agricultural zone of the Rostov region (with insufficient and unstable moisture). The soil of the experimental plot was ordinary heavy loamy blackearth (chernozem) on loess-like loam, with 3.2% of humus, 18.5-20.0 mg of P2O5, 342-360 mg of K2O per kg of soil. The value of the hydrothermal coefficient in the years of research ranged from 0.27 to 0.66, which characterized the insufficient moisture supply of the vegetation period. The purpose of the current work was to study the effect of biological products and bioorganic fertilizer “Nagro” on the productivity of the mid-ripening hybrid ‘Zernogradsky 354 MB'. The applied bio products had a significant effect on the safety of plants for harvesting, which was at the level of 86.6-87.9% and indicators of the yield structure, where there was a significant improvement in comparison with the control variant on 7.2-26.2 g of a cob weight, 6.0-19.75 g of kernel weight per cob, 19.2-32.3 g of 1000-kernel weight. The productivity increase due to the use of bio products ranged in 0.18-0.56 t/ha. The most energetically efficient variants of the trial were the use of the bioorganic fertilizer “Nagro” and the biological product “Flavobacterin”, where the minimum values of the energy intensity of the product were 4.55 GJ/ha (“Nagro”) and the maximum energy efficiency coefficient was 2.39 GJ/ha (“Flavobacterin”). When using the bioorganic fertilizer “Nagro”, there was the largest net income of 20 343 rubles/ha, with the smallest production cost of 3487 rubles/ha and the highest profitability level of 158%.

Sign in / Sign up

Export Citation Format

Share Document