scholarly journals Variations of physical and chemical parameters in hypertrophic pond within pig slurry application

2008 ◽  
Vol 56 (2) ◽  
pp. 95-100
Author(s):  
Radovan Kopp ◽  
Jan Mareš ◽  
Andrea Ziková ◽  
Tomáš Vítek
Keyword(s):  
Agricultural Land ◽  
Pig Slurry ◽  
Hydrochemical Parameters ◽  
Underground Waters ◽  
Pond Ecosystem ◽  
Intensively Managed ◽  
Correct Application ◽  
Physical And Chemical ◽  
The Impact

During the years 2001 and 2002 we conducted hydrochemical monitoring of intensively managed pond to evaluate the impact of high pig slurry doses on eutrophication. Pig slurry application was carried out in colder period of the year (February–April) via tube system with sludge pump from nearby piggery. Our results showed that pig slurry application do not permanently affect the water quality of Jarohněvický pond. When the correct application is made slurry is effectively utilized by biomass for the growth, which prevents surface and underground waters to be polluted as in the case of incorrect application on agricultural land.Critical point of this technology in terms of water management is the way of pig slurry application and the exact dose. Even extremely high slurry doses (16.1 kg . m−2 in 2001 and 15.6 kg . m−2 in 2002) used in Jarohněvický pond did not negatively affected pond ecosystem. Only higher amount of organisms that increased natural fish production was recorded. It is necessary to implement this ameliorative intervention in colder period of the year considering higher hazard of variations in decisive hydrochemical parameters at higher water temperature.

scholarly journals Testing the Impact of Waste from Anaerobic Digestion (Enriched with an Organic Component) on the Quality of Agricultural Land

2017 ◽  
Vol 63 (4) ◽  
pp. 33-38
Author(s):  
Jana Kodymová ◽  
Miroslav Kyncl ◽  
Hana Švehláková ◽  
Magdaléna Bártková
Keyword(s):  
Anaerobic Digestion ◽  
Field Trial ◽  
Laboratory Tests ◽  
Agricultural Land ◽  
Mineral Fertilizer ◽  
Organic Component ◽  
Carbon And Nitrogen ◽  
Macro And Micronutrients ◽  
The Impact

Abstract Waste from anaerobic digestion is considered as a mineral fertilizer and it is usually applied to agricultural land. The aim of our attempt was to enrich this waste from anaerobic digestion (digestate) with an organic component (in our case represented by haylage). For this purpose, we made different mixtures of digestate and haylage in different weight ratios. In the field trial, the effect of these mixtures on the soil, under standard agricultural conditions, was monitored. Selected accessible nutrients (P, K, Mg, Mn, Ca) and the amount of carbon and nitrogen in the soil were monitored. The results of the laboratory tests confirmed that the areas where the sowing and digestate mixtures were applied showed greater amounts of macro- and micronutrients in plant-accessible forms than the surface fertilized only with digestate or areas fertilized only with standard fertilizers.

scholarly journals THE IMPACT OF BRICK KILN OPERATION TO THE DEGRADATION OF TOPSOIL QUALITY OF AGRICULTURAL LAND

2015 ◽  
Vol 37 (3) ◽  
Author(s):  
Md. Sirajul Islam ◽  
Shamim Al Mamun ◽  
Muliadi Muliadi ◽  
Sohel Rana ◽  
Tanmoy Roy Tusher ◽  
...  
Keyword(s):  
Agricultural Land ◽  
Brick Kiln ◽  
The Impact

scholarly journals Assessing the Impact of land-use types on the groundwater quality: a case study of Mid River Njoro Catchment, Kenya

2020 ◽  
Vol 9 (4) ◽  
Author(s):  
Halake Guyo Rendilicha ◽  
Patrick Home ◽  
James M. Raude ◽  
Charles M. M’Erimba ◽  
Stellamaris Muthoka
Keyword(s):  
Land Use ◽  
Groundwater Quality ◽  
Forest Cover ◽  
Agricultural Land ◽  
Settlement Area ◽  
Mixed Area ◽  
Land Use Types ◽  
The Mean ◽  
The Impact

The study assessed the impact of land-use types on the groundwater quality of the mid River Njoro catchment, Kenya. Groundwater samples were collected from eight boreholes between the period of October 2017 to February 2018 and analyzed for pH, temperature, electrical conductivity, dissolved oxygen, nitrate, ammonium, and total phosphorus. These parameters were used to calculate the Groundwater Quality Index (GQI) value of the study area. The concentration maps (“primary maps I”) were constructed using Kriging interpolation of ArcGIS software from the seven groundwater quality parameters. The “primary maps I” were standardized with the KEBS and WHO standards to the “primary maps II” for ease of integration into a GIS environment. The “primary maps II” were then rated and weighted using a polynomial function to generate “rank maps” before calculating the GQI using spatial analyst tools of ArcGIS software. The land use map was prepared from a high-resolution Google earth satellite imagery of 2015. The mean GQI values for the different land use polygons were calculated and compared using GIS techniques. The GQI ranged from 68.38 to 70.92, indicating a high groundwater quality of mid River Njoro catchment. The major land-use types identified include settlement area, forest cover, agricultural land and mixed area. The agricultural land dominated the study area, followed by settlement area, forest cover and finally mixed area. The mean GQI value in each land use type varied minimally and this could be because of the diffuse nature of the land use types of the study area. Settlement area had low GQI, followed by agricultural land, mixed area and the forest cover had the highest mean GQI value, which corresponds to good quality of groundwater. Even though the variation is insignificant in this particular study, it somehow indicates the adverse effects of different land use on the quality of groundwater.

scholarly journals Organik Tavukçulukta İçme Suyu Özellikleri, Beslemedeki Önemi ve Su Kalitesini Artırmaya Yönelik Uygulamalar

2013 ◽  
Vol 1 (1) ◽  
pp. 12 ◽  
Author(s):  
Hasan Eleroğlu ◽  
Arda Yıldırım ◽  
Ahmet Şekeroğlu
Keyword(s):  
Water Quality ◽  
Water Sources ◽  
Organic Production ◽  
Poultry Production ◽  
Water Contaminants ◽  
Quality Of Water ◽  
Quality Of Products ◽  
Physical And Chemical ◽  
The Impact

The source of water, the content and quality is very important used in every stage of poultry production. The birds must have continuous access and supply of quality water without any antibiotic and bacteriological residues. Sensory, physiochemical properties and chemical composition must be taken into consideration while assessing water quality. The quality of water used in the production of conventional or organic poultry has impacts on the poultry health, quality of products and human health. The impact of water quality is higher on the functionality of water in live organism and the consumption amount varies depending on many factors. A source of water which is used in organic production is also important with their characteristics. Different water sources may be used for animal consumption, such as springs, shallow wells, deep and artesian wells, lakes and creeks. Organic farms should regularly submit water samples to a laboratory for testing of water quality against the possibility of contamination of water sources. Water contaminants could create equipment problems and restrict the amount of water available for consumption therefore affects the quality of products. There are many aspects to the broad problems of water quality and different physical and chemical applications used to ensure sustainability of water quality for human and animal use. In this review, it will be focused on the quality of the water to be used in the organic poultry production and quality enhancing physical and chemical applications.

scholarly journals REHABILITATION AGRICULTURE AREA COVERED BY SINABUNG VOLCANIC ASH

2015 ◽  
Vol 2 (3) ◽  
pp. 220-227
Author(s):  
Agustoni Tarigan
Keyword(s):  
Volcanic Ash ◽  
Agricultural Land ◽  
Soil Conditions ◽  
Medium Thickness ◽  
Mountain Area ◽  
Short Time ◽  
Physical And Chemical ◽  
Normal Processing

The eruption of Mount Sinabung consistently and material issued increasingly large volume has caused plant and agricultural land damaged. Agricultural land damage was caused by the material issued mountain area is 10.945,24 ha. The role of technology and the results of research that has been done to agricultural lands caused the eruption of Mount Sinabung to be recommendations for the improvement of agricultural land. Efforts to improve the aspects of physical and chemical land are conservation, rehabilitation land of sand and the increase in the quality of the land. The thickness of volcanic ash after an eruption of covering agricultural land can be divided into 4 classes, namely: thin (the thickness < 2 cm), medium (thickness 2- 5 cm and thick (> 5 cm). Efforts for the recovery and rehabilitation land on each cluster based on the thickness of the dungeon ashes were normal processing with a hoe or plow, fertilizing with of organic matter and to the lava, dungeon needs to be done the conservation and land rehabilitation by an annual plant / the forest. The rehabilitation of agricultural land that badly damaged by eruption material may not be restored in a short time because of soil conditions which are acid, rocky and sandy. Thus the programs carried out by gradually and different treatment in accordance with their condition agricultural land.

scholarly journals The Fluctuation of Water Quality of Ci Lutung flow areas in Majalengka and Sumedang.

2018 ◽  
Vol 73 ◽  
pp. 04013
Author(s):  
Deddy Caesar Agusto ◽  
Eko Kusratmoko
Keyword(s):  
Water Quality ◽  
Point Source ◽  
Agricultural Land ◽  
Quality Data ◽  
Water Quality Data ◽  
Water Quality Indicators ◽  
Quality Of Water ◽  
The Moment ◽  
The Impact

The river is the main source of water in Indonesia, which at the moment, this quality tends to get worse and is no longer worth consuming for various needs. The cause of the pollution is the entry of pollutants both point source (industrial waste) and non-point source (residential and agricultural land). Rainfall can be a non-point source pollutant agent from a watershed to a water body. The impact of rainfall on increasing concentrations of pollutants is very significant, especially the high intensity rainfall that falls after the long dry season. In this study, water quality data is obtained from river outlets located in Damkamun taken every 30 minutes during the rainfall event so that fluctuation in water quality can be seen. Water quality indicators studied in this research are TDS, DHLNitrate, Phosphate and Ph. The author, in analyzing, using rainfall Himawari 8 which is obtained every 10 minutes. The result shows that rainfall is directly related to the water flow and the fluctuation of the discharge affects the water quality. From the calculations, the chemical quality of water is also influenced by the use of land in the watershed. Nitrate value increases when the occurrence of rain occurs in land use while phosphate experiences a high value during the event.

RELATIONSHIP BETWEEN LAND TENURE AND SOIL PRODUCTIVITY

1986 ◽  
Vol 66 (2) ◽  
pp. 357-366 ◽  
Author(s):  
W. VAN VUUREN ◽  
P. YSSELSTEIN
Keyword(s):  
Land Tenure ◽  
Soil Conservation ◽  
Management Practices ◽  
Agricultural Land ◽  
Soil Productivity ◽  
Corn Yield ◽  
Contractual Obligations ◽  
The Impact

Renting of agricultural land is gaining in importance in Canada. The impact of rental on soil conservation and on long-term soil productivity was examined in central southwestern Ontario. Prevailing leasing contracts were short-term, with a minimum of contractual obligations on both parties. A difference in soil management practices was found between owner-operated land and rented land. Both recurrent and nonrecurrent practices upgrading the soil were carried out to a lesser extent on rented than on owner-operated land, while the quality of the rented land was in fact lower and in greater need of ameliorative practices. This resulted in a difference in grain corn yield; the lower yield being obtained from rented land. Key words: Land tenure, tenancy, rental contract, soil conservation, soil productivity, soil quality

Kinetics and Mechanism of Ecochemical Processes

2020 ◽  
pp. 109-136
Author(s):  
Sergey Olegovich Travin
Keyword(s):  
Mathematical Modeling ◽  
Numerical Experiment ◽  
Food Chain ◽  
Exponential Growth ◽  
Natural Waters ◽  
Stationary States ◽  
The Cost ◽  
Physical And Chemical ◽  
The Impact

Significant efforts of mankind and huge funds were spent to study the mechanisms of environmental processes. Recent decades have been marked by exponential growth of computer power and the accompanying decrease in the cost of computing. With regard to the mathematical modeling of physical and chemical processes that determine the quality of natural waters, atmosphere, and soil, this has led to the development of an extensive approach based on an increase in the number of components and reactions between them taken into consideration. In this chapter, the authors describe features of ecochemical systems and discuss the moments that complicates their prediction. Using the method of numerical experiment, they investigate the behavior of periodic systems with multiple stationary states. One conclusion is that the actual manifestation cannot be used to determine at what stage the impact occurred and to what stage of the food chain it relates. Another conclusion is that systems involving multiple stationary states are prone to bifurcations and chaotic jumps from one limit cycle to another.

Impact of Insufficient Cleaning on the Quality of Molybdenum Layer Applied by Thermal Spraying

2013 ◽  
Vol 801 ◽  
pp. 35-40
Author(s):  
Marián Bujna ◽  
Miroslav Prístavka ◽  
Pavol Kaplík
Keyword(s):  
Erosion Resistance ◽  
Thermal Spraying ◽  
Chemical Properties ◽  
Poor Quality ◽  
Physical And Chemical Properties ◽  
High Degree ◽  
Physical And Chemical ◽  
The Impact ◽  
And Chemical Properties

Thermal spraying influences several physical and chemical properties of the coating surface. The most important of them are hardness, density, porosity, corrosion resistance and adhesion. This technology of surface treatment of material is often used for its high degree of hardness. Hardness and erosion resistance are the parameters that need to be achieved particularly in working conditions where there is excessive component wear. In this paper, we deal with the impact of purifying on the quality of molybdenum layer. Insufficient cleaning may result in a poor quality of the sprayed layer. Our aim is to measure and analyse the quality of molybdenum layer thickness applied by thermal spraying after insufficient cleaning.

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