scholarly journals Technological Effectiveness of Chelated Micronutrient Fertilizers in Leaf Treatments Inducing Grapes Resistance to Biotic and Abiotic Stresses

2020 ◽  
Vol 21 ◽  
pp. 00033
Author(s):  
Eugeniya Yurchenko ◽  
Alexander Artamonov
Keyword(s):  
Agricultural Products ◽  
Total Water ◽  
Taman Peninsula ◽  
Biotic And Abiotic Stresses ◽  
Technological Effectiveness ◽  
The Stability ◽  
Positive Effect ◽  
Average Cluster ◽  
Biotic Environment ◽  
Adaptive Reactions

Fertilizers based on complexes of chelated trace elements are the most common and effective agricultural products for the induction of protective-compensatory and other adaptive reactions of plants. The influence of various leaf treatments technologies with chelated micronutrient fertilizers application on the stability of grapes is studied under increasing abiotic and biotic environment factors within the Taman Peninsula (Russia) considering the content of proline, photosynthetic pigments (chlorophylls and carotenoids), total water in the leaves, as well as the development of infectious drying of clusters and leaf spotting reduction due to the treatment. The new optimized scheme application on the chelated micronutrient fertilizers showed a predominantly positive effect on the grape plants adaptation to high-temperature drought and fungal diseases susceptibility, as well as essential increase of the average cluster weight and yield per hectare.

scholarly journals Inhibition or Facilitation? Contrasted Inter-Specific Interactions in Sphagnum under Laboratory and Field Conditions

Plants ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1554
Author(s):  
Chao Liu ◽  
Zhao-Jun Bu ◽  
Azim Mallik ◽  
Yong-Da Chen ◽  
Xue-Feng Hu ◽  
...  
Keyword(s):  
Field Experiment ◽  
Species Interactions ◽  
Laboratory Experiments ◽  
Resource Competition ◽  
Specific Interactions ◽  
Interaction Type ◽  
Negative Effects ◽  
Experiment Data ◽  
The Stability ◽  
Positive Effect

In a natural environment, plants usually interact with their neighbors predominantly through resource competition, allelopathy, and facilitation. The occurrence of the positive effect of allelopathy between peat mosses (Sphagnum L.) is rare, but it has been observed in a field experiment. It is unclear whether the stability of the water table level in peat induces positive vs. negative effects of allelopathy and how that is related to phenolic allelochemical production in Sphagnum. Based on field experiment data, we established a laboratory experiment with three neighborhood treatments to measure inter-specific interactions between Sphagnum angustifolium (Russ.) C. Jens and Sphagnum magellanicum Brid. We found that the two species were strongly suppressed by the allelopathic effects of each other. S. magellanicum allelopathically facilitated S. angustifolium in the field but inhibited it in the laboratory, and relative allelopathy intensity appeared to be positively related to the content of released phenolics. We conclude that the interaction type and intensity between plants are dependent on environmental conditions. The concentration of phenolics alone may not explain the type and relative intensity of allelopathy. Carefully designed combined field and laboratory experiments are necessary to reveal the mechanism of species interactions in natural communities.

SHELL MATERIAL'S PERFORMANCE OF THE MICROCAPSULE FOR ELECTROLYTIC CO-DEPOSITION

2010 ◽  
Vol 24 (15n16) ◽  
pp. 3124-3130 ◽  
Author(s):  
HUI CONG LIU ◽  
XIU QING XU ◽  
WEI PING LI ◽  
YAN HONG GUO ◽  
LI-QUN ZHU
Keyword(s):  
Composite Coating ◽  
Methyl Cellulose ◽  
Water Vapor Permeability ◽  
Core Material ◽  
Vapor Permeability ◽  
Shell Material ◽  
The Core ◽  
Surface Performance ◽  
The Stability ◽  
Positive Effect

The shell material of microcapsules has an important effect on the electrolytic co-deposition behavior, the release of core material and the surface performance of composite coating. This paper discussed the tensile property and the stability of three shell materials including polyvinyl alcohol (PVA), gelatin and methyl cellulose (MC). It is found that these three shell materials have good mechanical strength and flexibility which are favorable to electrolytic co-deposition and stability of microcapsules in composite coating and that MC has well permeability and porosity which has a positive effect on the release of the core material in composite coating. Moreover, the study of the thermal properties and water vapor permeability of the three shell materials showed that their permeability improved with increase of temperature and humidity. In addition, the composite copper coating containing microcapsules with PVA, gelatin or MC as shell material was prepared respectively.

Coating of Particles in Spouted Bed: Flow Regime and Stability

2010 ◽  
Vol 660-661 ◽  
pp. 573-579
Author(s):  
J.L. Vieira Neto ◽  
J.E. Borges ◽  
Claudio Roberto Duarte ◽  
Marcos A.S. Barrozo
Keyword(s):  
Power Spectrum ◽  
Pressure Fluctuations ◽  
Flow Regimes ◽  
Main Flow ◽  
Agricultural Products ◽  
Soybean Seeds ◽  
Spouted Bed ◽  
Cyclical Motion ◽  
The Stability ◽  
The Many

The coating and encapsulating of particles presents many applications in the chemical, pharmaceutical, food and agricultural products industries. Among the many applications of seeds coating, the enlargement of small seeds is included in order to facilitate the planting, the addition of herbicides, fungicides, fertilizers, micronutrients and inoculation. The spouted bed has often been used in studies related to the coating of particles, due to the cyclical motion of the material, which promotes a fast axial mixture of particles and an excellent gas-particle contact. In this work, the coating of soybean seeds with inoculum and micronutrients in spouted bed has been studied. The different flow regimes were investigated using the pressure fluctuations and power spectrum. The results of the present work showed that it was possible to identify the main flow regimes and to analyze the influence of the coating in the stability of those regimes.

scholarly journals EFFECT OF WEATHERED SURFACE CRUST LAYER ON STABILITY OF MUAR TRIAL EMBANKMENT

2015 ◽  
Vol 76 (2) ◽  
Author(s):  
Ali Sobhanmanesh ◽  
Ramli Nazir ◽  
Nader SaadatkhaH
Keyword(s):  
Deformation Behavior ◽  
Three Dimension ◽  
Crust Layer ◽  
Staged Construction ◽  
Weathered Crust ◽  
Dimension 2 ◽  
Embankment Height ◽  
The Stability ◽  
Positive Effect ◽  
Surface Crust

his paper attempts to evaluate the effect of surface crust layer on the stability and deformation behavior of embankment. A full-scale case history trial embankment constructed on Muar flat in the valley of the Muar River in Malaysia was modeled and analyzed. The Muar trial embankment was simulated in two- and three-dimension (2-D and 3-D) utilizing finite element programs PLAXIS 2-D AND PLAXIS 3-D FOUNDATION, using staged-construction procedure. Sensitivity analysis was performed by varying the thickness of weathered crust layer beneath the embankment fill, i.e., three models of embankment with no surface crust, 1 m surface crust and 2 m surface crust layer. Predictions were made for the vertical and the horizontal displacements of the embankment. Factor of safety for each meter increase in the embankment height was defined until the failure is reached. It is concluded that the bearing capacity of the ground and the deformation behavior of the embankment were sensitive to the thickness of the weathered crust layer. The surface crust layer has a positive effect on the stability of the embankment and consequently reduces the settlement and increases the failure height of the embankment fill up to 37%.

scholarly journals Перспективы применения гуминового комплекса на виноградниках Крыма

2019 ◽  
pp. 122-127
Author(s):  
Magometsaigit Beibulatov ◽  
Nadezhda Tikhomirova ◽  
Natalia Urdenko ◽  
Roman Buival ◽  
Yana Radionovskaya
Keyword(s):  
Positive Impact ◽  
Cabernet Sauvignon ◽  
Wine Grapes ◽  
Total Sugars ◽  
Table Grapes ◽  
New Generation ◽  
The Impact ◽  
Positive Effect ◽  
Average Cluster

В статье представлены результаты двухлетних исследований по изучению влияния внекорневых подкормок гуминовым препаратом нового поколения GSN-2004 HUMILIFEтм (ОСН-2004) на урожай и качество винограда столового сорта Мускат янтарный и технического сорта Каберне-Совиньон в условиях Южного берега Крыма. По результатам исследований 2017-2018 гг. установлено, что внекорневые подкормки изучаемым препаратом разработанной нормой 4 л/га, способствуют увеличению урожайности винограда сорта Мускат янтарный в среднем на 23,9%, при этом повышение урожайности составляет 2,7 т/га. Урожайность винограда сорта Каберне-Совиньон увеличивается на 26,5%, при этом повышение урожайности составляет 2,2 т/га. Подтверждено положительное влияние внекорневых подкормок на показатели качества винограда сорта Мускат янтарный, которое выразилось в увеличении средней массы грозди у изучаемого сорта на 40,3%, увеличении массовой концентрации сахаров в соке ягод на 5,4% и увеличении значений глюкоацидометрического показателя (ГАП) на 15,6%. Положительное влияние внекорневых подкормок на показатели качества винограда сорта Каберне-Совиньон выразилось в увеличении средней массы грозди на 23,0% и увеличении массовой концентрации сахаров в соке ягод на 7,1%.The paper summarizes findings of a two-year study on the impact of foliar fertilizing with a new generation humic preparation GSN-2004 HUMILIFEтм (ОСН-2004) on the harvest and quality of ‘Muscat Yantarniy’ table grapes and ‘Cabernet Sauvignon’ wine grapes in the conditions of the southern coast of Crimea. The data of the 2017-2018 study established that foliar dressing with the preparation under study in the ratio of 4 l/ha increases the harvest of ‘Muscat Yantarniy’ grapes on average by 23.9%, or by 2 t/ha. The yield of ‘Cabernet Sauvignon’ grapes was increased by 26.5%, thus increasing the harvest by 2.2 t/ha. The positive impact of foliar dressing on quality indicators of ‘Muscat Yantarniy’ grapes was confirmed. Thus, the average cluster weight increased by 40.3%, total sugars in the berry juice increased by 5.4 %, and gluco-acidometric index increased by 158.06 %. The study confirmed the positive effect of foliar dressing on quality characteristics of ‘Cabernet Sauvignon’ grapes, as demonstrated by a 23% increase in the average cluster weight and a 7.1 % increase in the total sugars in the berry juice.

scholarly journals Improving efficiency and lowering operating costs of evaporative cooling

2021 ◽  
Vol 338 ◽  
pp. 01027
Author(s):  
Jan Taler ◽  
Bartosz Jagieła ◽  
Magdalena Jaremkiewicz
Keyword(s):  
Electricity Consumption ◽  
Open Circuit ◽  
Dew Point ◽  
Operating Costs ◽  
Water Evaporation ◽  
Total Water ◽  
Point Temperature ◽  
Dew Point Temperature ◽  
Adiabatic Cooling ◽  
Positive Effect

Cooling towers, or so-called evaporation towers, use the natural effect of water evaporation to dissipate heat in industrial and comfort installations. Water, until it changes its state of aggregation, from liquid to gas, consumes energy (2.257 kJ/kg). By consuming this energy, it lowers the air temperature to the wet-bulb temperature, thanks to which the medium can be cooled below the ambient temperature. Evaporative solutions are characterized by continuous water evaporation (approx. 1.5% of the total water flow) and low electricity consumption (high EER). Evaporative (adiabatic) cooling also has a positive effect on the reduction of electricity consumption of cooled machines. Lowering the relative humidity (RH) by approx. 2% lowers the wet-bulb temperature by approx. 0.5°C, which increases the efficiency of the tower, operating in an open circuit, expressed in kW, by approx. 5%, while reducing water consumption and treatment costs. The use of the M-Cycle (Maisotsenko cycle) to lower the temperature of the wet thermometer to the dew point temperature will reduce operating costs and increase the efficiency of cooled machines.

scholarly journals Complexity Analysis for Price Competition of Agricultural Products with Regional Brands

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Haolong Liu ◽  
Xin Su ◽  
Xiaohui Wang ◽  
Xiao Li
Keyword(s):  
Price Competition ◽  
Complexity Analysis ◽  
Delayed Feedback ◽  
Agricultural Products ◽  
Market Model ◽  
Price Adjustment ◽  
Price Expectation ◽  
Pricing System ◽  
Agricultural Business ◽  
The Stability

The disordered price competition among various agricultural business agents leads to chaos of agricultural products’ prices, which makes it difficult for customers to form stable price expectation and correct brand cognition, restricting the sales of agricultural products with regional brands. Based on the Salop circular market model with bounded rationality and delayed feedback, this paper discusses the complexity in price competition of agricultural products with regional brands. It is found that when the price adjustment speed of agricultural business agents exceeds the stability region, the pricing system of agricultural products with regional brands would appear the phenomenon of periodic bifurcation or chaos. The delayed feedback controlling mechanism of price adjustment could make the pricing system in the chaos state turn to the equilibrium state. Therefore, the price fluctuation of agricultural products with regional brands needs reasonable control from the industrial associations and government departments.

scholarly journals Impact of Covid-19 on banking business

2021 ◽  
Vol 18 (2) ◽  
pp. 79-90
Author(s):  
Marijana Joksimović ◽  
Jozefina Beke-Trivunac
Keyword(s):  
Credit Risk ◽  
World Health Organization ◽  
Banking System ◽  
World Health ◽  
Global Level ◽  
The World ◽  
Banking Business ◽  
The Stability ◽  
Health Organization ◽  
Positive Effect

The Covid-19 virus pandemic, declared in 2020 by the World Health Organization, has a very large impact on banking business around the world. The most significant problem is the growth of credit risk and the huge growth of demand for liquid assets. The crisis has also increased the risks associated with the digitalization of banking business and brought new risks posed by the work of employees from home. The timely reaction of regulatory authorities, at the global level, and the willingness of the monetary and fiscal authorities of all countries to cooperate have shown a very positive effect on the stability of the banking system.

Vegetation dynamics drive the evolution of soil aggregate stability during the first 14,000 years of soil development in the Swiss alps

2021 ◽  
Author(s):  
Konrad Greinwald ◽  
Tobias Gebauer ◽  
Ludwig Treuter ◽  
Victoria Kolodziej ◽  
Alessandra Musso ◽  
...  
Keyword(s):  
Vegetation Dynamics ◽  
Plant Cover ◽  
Aggregate Stability ◽  
Root Traits ◽  
Soil Aggregate ◽  
Swiss Alps ◽  
Soil Aggregate Stability ◽  
Alpine Regions ◽  
The Stability ◽  
Positive Effect

<p><strong>Aims:</strong></p><p>The stability of hillslopes is an essential ecosystem service, especially in alpine regions with soils prone to erosion. One key variable controlling hillslope stability is soil aggregate stability. However, there is comparatively little knowledge about how vegetation dynamics affect soil aggregate stability during landscape evolution.</p><p><strong>Methods:</strong></p><p>We quantified soil aggregate stability by determining the Aggregate Stability Coefficient (ASC), which was developed for stone-rich soils. To reveal how hillslope aging and corresponding changes in vegetation affect the evolution of ASC, we measured plant cover, diversity, and root traits along two chronosequences in the Swiss Alps.</p><p><strong>Results:</strong></p><p>We found a significant positive effect of vegetation cover and diversity on ASC that was mediated via root traits. These relationships, however, developed in a time-depended manner: At young terrain ages, above- and belowground vegetation characteristics had a stronger effect on aggregate stability than species diversity, whereas these relationships were weaker at older stages.</p><p><strong>Conclusions:</strong></p><p>Our findings highlight the importance of vegetation dynamics for the evolution of aggregate stability and enhance our understanding of processes linked to hillslope stabilization, which is a key priority to avoid further soil degradation and connected risks to human safety in alpine areas.</p>

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