scholarly journals Agrochemical condition and nutrition balance of newly irrigated light gray soils of Uzbekistan

2021 ◽  
Vol 244 ◽  
pp. 02037
Author(s):  
Jakhongir Kuziev ◽  
Sherali Mansurov ◽  
Murod Karimov ◽  
Aslbek Kholikulov
Keyword(s):  
Winter Wheat ◽  
Low Income ◽  
Geographical Location ◽  
Fine Sand ◽  
Geological Structure ◽  
Climatic Conditions ◽  
Nutrition Balance ◽  
Low Income Groups ◽  
Total Potassium ◽  
Natural Means

This paper notes the geographical location, soil and climatic conditions, geomorphological and geological structure of Jizzakh province, as well as the agrochemical status of newly irrigated light gray soils formed in Arnasay district of the province, nutrients and their balance in the autumn glaciers. According to the results of chemical analysis, it was found that the mechanical composition of the studied soils consists of light sandy and loamy soils, in which fine sand particles (0.5-0.05%) predominate. The study showed that in the driving layers of newly irrigated light gray soils, humus was present at 0.823-0.936%, total nitrogen at 0.059-0.084%, total phosphorus at 0.096-0.135%, and total potassium at 1.05-1.36%, humus and mobile nutrients. It was noted that they belong to very low and low-income groups according to their level. The amount of mineral and local fertilizers applied to winter wheat, the residues of winter wheat and the amount of crop and stem (straw) grown in relation to the amounts that fall into the soil by natural means is high (N-15.1 kg/ha, P-3, 6 kg/ha, K-34.4 kg/ha).

scholarly journals Compatibility of ‘soil-variety-fertilizer’ to fertilizer norms and dynamics of food elements

2021 ◽  
Vol 244 ◽  
pp. 02038
Author(s):  
Jakhongir Kuziev ◽  
Alisher Matyakubov ◽  
Shavkat Jumaev ◽  
Sobirjon Nizamov
Keyword(s):  
Field Experiments ◽  
Geographical Location ◽  
Climatic Conditions ◽  
Dust Particles ◽  
Exchangeable Potassium ◽  
Agrochemical Properties ◽  
Nutrient Environment ◽  
Total Potassium ◽  
Nitrogen Phosphorus ◽  
Irrigated Soils

This article notes the geographical location and soil-climatic conditions of Kashkadarya province in Uzbekistan, as well as the mechanical composition, agrochemical properties and dynamics of nutrients in the soil of field experiments conducted in the conditions of typical irrigated gray soils in Shakhrisabz district. In total, 36% of the irrigated soils of the Kashkadarya basin are typical gray soils, and the genetic layers of the soils of the studied area are medium sandy, with large dust particles predominating in the mechanical fraction and create nutritional regimens. In the driving layers of the studied soils, humus 1.094%, total nitrogen 0.080%, total phosphorus 0.168%, total potassium 1.07%, mobile nitrogen, phosphorus and exchangeable potassium belong to low and moderately supplied groups. It is also possible to fully demonstrate the potential of cotton by creating a scientifically based nutrient environment for the promising variety “Porlok-4”.

Planetary gentrification and urban (re)development

2019 ◽  
Vol 61 (1) ◽  
pp. 5-13 ◽  
Author(s):  
Loretta Lees
Keyword(s):  
Low Income ◽  
Policy Making ◽  
Large Scale ◽  
Urban Redevelopment ◽  
Urban Transformation ◽  
Small Scale ◽  
Income Groups ◽  
Low Income Groups

Abstract Gentrification is no-longer, if it ever was, a small scale process of urban transformation. Gentrification globally is more often practised as large scale urban redevelopment. It is state-led or state-induced. The results are clear – the displacement and disenfranchisement of low income groups in favour of wealthier in-movers. So, why has gentrification come to dominate policy making worldwide and what can be done about it?

scholarly journals Mosquito Vector Production across Socio-Economic Divides in Baton Rouge, Louisiana

2021 ◽  
Vol 18 (4) ◽  
pp. 1420
Author(s):  
Rebeca de Jesús Crespo ◽  
Madison Harrison ◽  
Rachel Rogers ◽  
Randy Vaeth
Keyword(s):  
Low Income ◽  
Baton Rouge ◽  
Habitat Preferences ◽  
Abundant Species ◽  
Mosquito Larvae ◽  
Mosquito Vector ◽  
Mosquito Vectors ◽  
Low Income Groups ◽  
Socio Economic Factors

We investigated the role of socio-economic factors in the proliferation of mosquito vectors in two adjacent but socio-economically contrasting neighborhoods in Baton Rouge, LA, USA. We surveyed mosquito larvae habitat, mosquito larvae, and adult mosquitoes during the summer of 2020. We also evaluated the number of requests for mosquito abatement services in the years preceding the study for each area. While we did not find differences in terms of the most abundant species, Culex quinquefasicatus (F1,30 = 0.329, p = 0.57), we did find a higher abundance of mosquito habitats, particularly discarded tires, as well as larvae (z = 13.83, p < 0.001) and adults (F1,30 = 4.207, p = 0.049) of the species Aedes albopictus in the low-income neighborhood. In contrast, mosquito abatement requests were significantly higher in the high socio-economic neighborhood (z = −8.561, p < 0.001). This study shows how factors such as adjudicated properties, discarded tires and pest abatement requests can influence the abundance of mosquito vectors, disproportionately affecting low-income groups. This study also highlights how Aedes spp. may be better indicators than Culex spp. of socio-economic differences between nearby neighborhoods, due to their short flight range and habitat preferences, and this should be considered in future studies attempting to detect such disparities in the future.

scholarly journals The Perspective of Croatian Old Apple Cultivars in Extensive Farming for the Production of Functional Foods

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 708
Author(s):  
Boris Duralija ◽  
Predrag Putnik ◽  
Dora Brdar ◽  
Anica Bebek Markovinović ◽  
Sandra Zavadlav ◽  
...  
Keyword(s):  
Functional Foods ◽  
Geographical Location ◽  
Nutritional Composition ◽  
Climatic Conditions ◽  
Biologically Active ◽  
Biological Potential ◽  
Apple Cultivars ◽  
The Republic ◽  
Processed Form ◽  
Extensive Farming

The Republic of Croatia has a long tradition of fruit growing due to its geographical location, climatic conditions, and high quality of fruit crops, especially apple fruits. Apples can be used for the formulation of functional foods either in processed form (e.g., juice), or as a by-product (e.g., apple pomace). However, there is a growing demand for functional foods derived from ancient and traditional plant sources as they are recognized as a very valuable source of health-promoting bioactive ingredients. Similarly, old apple cultivars (Malus domestica Borkh.) are characterized by good morphological and pomological properties, less need for chemicals during cultivation and the higher share of biologically active compounds (BACs) with better sensory acceptability compared to commercial cultivars. However, their nutritional and biological potential is underestimated, as is their ability to be processed into functional food. The importance in preserving old apple cultivars can also be seen in their significance for improving the nutritional composition of other apple cultivars through innovative cultivation strategies, and therefore old local apple cultivars could be of great importance in future breeding programs.

scholarly journals Spatial Accessibility to Local Public Services in an Unequal Place: An Analysis from Patterns of Residential Segregation in the Metropolitan Area of Santiago, Chile

2021 ◽  
Vol 13 (2) ◽  
pp. 442
Author(s):  
Yasna Cortés
Keyword(s):  
Residential Segregation ◽  
Metropolitan Area ◽  
Low Income ◽  
Public Services ◽  
Housing Prices ◽  
Spatial Association ◽  
Spatial Accessibility ◽  
Urban Systems ◽  
Local Public Services ◽  
Low Income Groups

The study of the relationship between the provision of local public services and residential segregation is critical when it might be the social manifestation of spatial income inequality. This paper analyzes how the spatial accessibility to local public services is distributed equitably among different social and economic groups in the Metropolitan Area of Santiago (MR), Chile. To accomplish this objective, I use accessibility measures to local public services such as transportation, public education, healthcare, kindergartens, parks, fire and police stations, cultural infrastructure, and information about housing prices and exempted housing units from local taxes by block, as well as quantile regressions and bivariate Local Indicators of Spatial Association (LISA). The main results confirm the accessibility to local public services is unequally distributed among residents. However, it affects more low-income groups who are suffering from significant deficits in the provision of local public services. In this scenario, poor residents face a double disadvantage due to their social exclusion from urban systems and their limited access to essential services such as education, healthcare, or transportation. In particular, I found that social residential segregation might be reinforced by insufficient access to local infrastructure that the most impoverished population should assume.

Nitrous oxide and carbon dioxide emissions from monoculture and rotational cropping of corn, soybean and winter wheat

2008 ◽  
Vol 88 (2) ◽  
pp. 163-174 ◽  
Author(s):  
C F Drury ◽  
X M Yang ◽  
W D Reynolds ◽  
N B McLaughlin
Keyword(s):  
Carbon Dioxide ◽  
Nitrous Oxide ◽  
Winter Wheat ◽  
Carbon Dioxide Emissions ◽  
Crop Residue ◽  
Agricultural Land ◽  
Application Rate ◽  
Climatic Conditions ◽  
Growing Seasons ◽  
Previous Crop

It is well established that nitrous oxide (N2O) and carbon dioxide (CO2) emissions from agricultural land are influenced by the type of crop grown, the form and amount of nitrogen (N) applied, and the soil and climatic conditions under which the crop is grown. Crop rotation adds another dimension that is often overlooked, however, as the crop residue being decomposed and supplying soluble carbon to soil biota is usually from a different crop than the crop that is currently growing. Hence, the objective of this study was to compare the influence of both the crop grown and the residues from the preceding crop on N2O and CO2 emissions from soil. In particular, N2O and CO2 emissions from monoculture cropping of corn, soybean and winter wheat were compared with 2 -yr and 3-yr crop rotations (corn-soybean or corn-soybean-winter wheat). Each phase of the rotation was measured each year. Averaged over three growing seasons (from April to October), annual N2O emissions were about 3.1 to 5.1 times greater in monoculture corn (2.62 kg N ha-1) compared with either monoculture soybean (0.84 kg N ha-1) or monoculture winter wheat (0.51 kg N ha-1). This was due in part to the higher inorganic N levels in the soil resulting from the higher N application rate with corn (170 kg N ha-1) than winter wheat (83 kg N ha-1) or soybean (no N applied). Further, the previous crop also influenced the extent of N2O emissions in the current crop year. When corn followed corn, the average N2O emissions (2.62 kg N ha-1) were about twice as high as when corn followed soybean (1.34 kg N ha-1) and about 60% greater than when corn followed winter wheat (1.64 kg N ha-1). Monoculture winter wheat had about 45% greater CO2 emissions than monoculture corn or 51% greater emissions than monoculture soybean. In the corn phase, CO2 emissions were greater when the previous crop was winter wheat (5.03 t C ha-1) than when it was soybean (4.20 t C ha-1) or corn (3.91 t C ha-1). Hence, N2O and CO2 emissions from agricultural fields are influenced by both the current crop and the previous crop, and this should be accounted for in both estimates and forecasts of the emissions of these important greenhouse gases. Key words: Denitrification, soil respiration, rotation, crop residue

Near-Drowning

1993 ◽  
Vol 14 (4) ◽  
pp. 148-151
Author(s):  
Debra H. Fiser
Keyword(s):  
United States ◽  
Low Income ◽  
The United States ◽  
Western United States ◽  
King County ◽  
Near Drowning ◽  
Time Period ◽  
States Data ◽  
Low Income Groups ◽  
Bodies Of Water

Definition Drowning is defined as death caused by submersion, whereas near-drowning connotes survival for some time period following submersion. The following remarks pertain to the near-drowning victim who presents for acute medical management. Epidemiology Because reporting of near-drowning incidents is incomplete, most of the available epidemiologic information focuses on drowning deaths, which number more than 6500 per year in the United States. Data from King County, Washington, however, suggest that near-drownings slightly out-number drownings. Drowning rates are highest for children under the age of 5 years and between the ages of 15 and 24 years. Males drown 4 times more frequently than females. African-Americans and low-income groups also are affected disproportionately, except for those drownings involving boats and residential swimming pools, which more often are owned by middle class groups. Drownings peak during the summer months and are most common in the southern and western United States and Alaska. Forty to 45% of all drownings occur while the victim is swimming and 12% to 29% are boat-related. Alcohol plays a substantial role in these deaths. Between one half and three quarters of all drownings occur in lakes, ponds, rivers, and the ocean. More than 40% of all submersions in these bodies of water involve older adolescents or young adults.

New Trends in Interaction of Developed and Developing Countries in Innovation Sphere

2012 ◽  
pp. 3-14
Author(s):  
A. Eroshkin ◽  
M. Petrov
Keyword(s):  
Developing Countries ◽  
International Relations ◽  
Low Income ◽  
Large Scale ◽  
Research Capacity ◽  
Transnational Corporations ◽  
Income Groups ◽  
Global Innovation ◽  
Low Income Groups ◽  
Adaptive Nature

The economic and innovative rise of the developing states stimulated a deep restructuring of the existing system of international relations in science and technology sphere. As the article points, one of the main manifestations of this trend can be seen in the transformation of global innovation strategies of transnational corporations. The world’s largest TNCs, mostly based in the industrial nations, have begun to transfer growing segments and parts of their R&D programs to the developing countries in order to take advantage of their increased research capacity. As a result, the nature of the projects being implemented there by the TNCs is changing. Historically, the TNCs’ local R&D activities were of adaptive nature. Namely, the stress was made on modification of the products and services offered by the TNCS globally to the specifics of local markets. Currently, a growing number of transnational corporations are implementing the large-scale programs in the developing countries aimed at designing new types of products, including those targeted at the low-income groups of consumers that make up the bulk of the population in developing countries.

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