scholarly journals Mineral fertilisation as a factor determining selected sorption properties of soil against the activityof phosphatases

2013 ◽  
Vol 59 (No. 10) ◽  
pp. 439-445 ◽  
Author(s):  
J. Lemanowicz
Keyword(s):  
Acid Phosphatase ◽  
Exchange Capacity ◽  
Sorption Properties ◽  
Chemical Degradation ◽  
Available Phosphorus ◽  
Phosphorus And Potassium ◽  
Alkaline And Acid Phosphatase ◽  
Nitrogen Rates ◽  
Properties Of Soil ◽  
Hydrolytic Acidity

The paper presents the contents of phosphorus and potassium available in soil, soil sorption properties against the activity of alkaline and acid phosphatase. The fertilisation applied involved P, K, Mg, Ca and S: (P K Mg Ca S), (K Mg Ca S), (P Mg Ca S), (P K Ca S), (P K Mg S), (P K Mg Ca) as well as nitrogen fertilisation at the following rates: 0, 50, 100, 150, 200, 250 kg N/ha. The application of high nitrogen rates with no liming applied resulted in an unfavourable increase in hydrolytic acidity and a decrease in the total bases, cation exchange capacity as well as the sorption complex saturation with bases. According to the criteria provided in PN-R-04023, the soil investigated can be classified as the 3<sup>rd</sup> class with an average available phosphorus (P<sub>E-R</sub>). The analysis of Luvisol salinity demonstrated that the unbalanced mineral fertilisation applied did not trigger any chemical degradation. Significant values of the coefficients of correlation were recorded between the activity of alkaline and acid phosphatase and the parameters investigated (hydrolytic acidity, total exchangeable, base stauration, P<sub>E-R</sub>). The calculated enzymatic index of soil pH (AlP/AcP) ranged from 0.11 to 0.72.

scholarly journals Adsorption of Copper in Soil and its Dependence on Physical and Chemical Properties

2018 ◽  
Vol 66 (1) ◽  
pp. 219-224 ◽  
Author(s):  
Vítězslav Vlček ◽  
Miroslav Pohanka
Keyword(s):  
Soil Properties ◽  
Solid Phase ◽  
Chemical Properties ◽  
Total Content ◽  
Exchange Capacity ◽  
Soil Reaction ◽  
Available Phosphorus ◽  
Copper Adsorption ◽  
Phosphorus And Potassium ◽  
Physical And Chemical

Soil samples (n = 11) were collected in the chernozem areas of the Czech Republic (the Central Europe) from the topsoil and used as representative samples. All sampling areas have been used for agricultural purposes (arable soil) and they were selected as typical representatives of agricultural soil. These samples represented the soil with same genesis (to reduction differencies between soil types) but with different soil properties (physical and chemical). Complete chemical and physical analyses were made for confirmation of copper adsorption on solid phase: we analysed the particle size distribution, content of oxidizable carbon (Cox), the cation exchange capacity (CEC), supply of exchange calcium, magnesium, sodium, phosphorus and potassium, soil reaction and the total supply of Fe, Al, Mn, Ca, Mg, K, P and N. The strongest simple correlation between analysed soil properties and copper concentration had content of available magnesium (r = 0.44) and available phosphorus (r = −0.51). In the case of multiple correlations (i. e. collective influence of multiple soil properties) had the strongest influence combination of clay, soil reaction, total content of phosphorus, available magnesium and available phosphorus. The main influence of phosphorus and magnesium is evident. We suppose that copper and phosphorus enter into specific complex. Influence of these five soil properties can explain 92.7 % (r = 0.927) changes in the content of copper changes in the experiment.

scholarly journals Effect of feather compost on soil chemical indicators in CCN-51 cocoa plantation (Theobroma cacao L.)

2020 ◽  
Vol 15 (1) ◽  
pp. 25-34
Author(s):  
Nelino Florida-Rofner ◽  
José Dolores Levano-Crisóstomo ◽  
Santos Jacobo-Salinas
Keyword(s):  
Organic Matter ◽  
Soil Quality ◽  
Block Design ◽  
Exchange Capacity ◽  
Available Phosphorus ◽  
Chemical Indicators ◽  
Phosphorus And Potassium ◽  
The Town ◽  
Cocoa Plantation

Introduction. Organic management of cocoa accounts for 60% of production in Peru and large amounts of compost prepared with different inputs are used, in order to improve the quality of the soil and cocoa yields. Objective. Evaluated the effect of the application of chicken feather compost on the main soil chemical indicators in a cocoa plantation CCN-51 un the Town of Nuevo Progreso, province of Padre Abad in the Ucayali-Peru region was evaluated. Materials and methods. A randomized complete block design was used, with four treatments and four repetitions where: FC1 was an absolute witness, FC2 feather compost at a rate of 2,000 kg. ha-1, FC3 feather compost at a rate of 4,000 kg. ha-1 and FC4 feather compost at a rate of 6 000 kg. ha-1. The main chemical indicators of soil quality were evaluated: hydrogen potential (pH), organic matter (OM), total nitrogen (N), available phosphorus (P), potassium (K+), calcium (Ca2+), magnesium (Mg2+) , aluminum (Al3+), available cadmium (Cd2+), changeable acids (AC) and cation exchange capacity (CEC). Results. The results showed a decrease in exchangeable aluminum and changeable acidity and increases in organic matter, nitrogen, phosphorus, and potassium, depending on the proportion of compost applied, these indicators presented significant differences (p <0.05); The pH, calcium and cadmium available did not show significant differences (p <0.05). Conclusion. Feather compost (FC) significantly improved the levels of OM, N, P and K+, indicators that define soil quality and reduce aluminum levels, the latter of utmost importance in acidic soils.

scholarly journals Co-Composting of Khat-Derived Biochar with Municipal Solid Waste: A Sustainable Practice of Waste Management

2020 ◽  
Vol 12 (24) ◽  
pp. 10668
Author(s):  
Zewdu Abebe Tessfaw ◽  
Abebe Beyene ◽  
Amsalu Nebiyu ◽  
Krzysztof Pikoń ◽  
Marcin Landrat
Keyword(s):  
Organic Matter ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Exchange Capacity ◽  
Available Phosphorus ◽  
Optimum Ratio ◽  
Calcium Magnesium ◽  
Phosphorus And Potassium ◽  
Organic Matter Loss

Biochar is a way to improve the performance of the composting process and the quality of compost. This study was aimed to investigate the optimum ratio of khat straw (Catha edulis) biochar and organic municipal solid waste mixtures to improve the quality of the resulting co-composts. Khat-derived biochar during pyrolysis at 350 °C was added to organic municipal solid waste mix and four co-composting treatments were prepared with the compositions (% w/w): control compost (no biochar) and 5%, 15%, and 25% co-composted biochar in three replicates. The total organic carbon, organic matter, total nitrogen, available phosphorus, and potassium values ranged as 16.76–21.45%, 30.77–40.26%, 0.97–1.68%, 0.58–0.76%, and 12.72–15.29%, respectively. The results confirmed that 5% and 15% co-composted khat biochars had significantly reduced (p < 0.05) organic matter loss and increased the contents of cation exchange capacity, pH, phosphorous, potassium, calcium, magnesium, and zinc compared to the control compost, while some heavy metals (Fe, Cu, and Mn) and EC values in co-composted biochars are lower than the control compost. Khat-derived biochar could be added to municipal organic waste mix at 5–15% (w/w) in order to get better quality of compost, which can be used as biofertilizer.

scholarly journals Enzymatic activity of the Kuyavia Mollic Gleysols (Poland) against their chemical properties  

2013 ◽  
Vol 59 (No. 8) ◽  
pp. 359-365 ◽  
Author(s):  
M. Krzyżaniak ◽  
J. Lemanowicz
Keyword(s):  
Acid Phosphatase ◽  
Organic Compounds ◽  
Soil Salinity ◽  
Chemical Properties ◽  
Available Phosphorus ◽  
Environment Monitoring ◽  
Soil Environment ◽  
Factors Affecting ◽  
Alkaline And Acid Phosphatase ◽  
Carbon Of Organic Compounds

The research results have shown that the enzyme pH index (0.49&ndash;0.83) confirmed the neutral or alkaline nature of the soils. Neither the changes in the content of available phosphorus nor in the activity of dehydrogenases, catalase, alkaline and acid phosphatase in soil were due to the factors triggering soil salinity; they were a result of the naturally high content of carbon of organic compounds, which was statistically verified with the analysis of correlation between the parameters. There were recorded highly significant values of the coefficients of correlation between the content of available phosphorus in soil and the activity of alkaline (r = 0.96; P &lt; 0.05) and acid phosphatase (r = 0.91; P &lt; 0.05) as well as dehydrogenase (r = 0.90; P &lt; 0.05). To sum up, one can state that Mollic Gleysols in Inowrocław are the soils undergoing seasonal salinity; however, a high content of ions responsible for salinity is balanced with a high content of organic carbon, humus, phosphorus and calcium directly affecting the fertility of the soils analyzed. The activity of the enzymes depended on the natural content of carbon of organic compounds and not on the factors affecting the soil salinity, which points to the potential of such tests for soil environment monitoring.

scholarly journals Effect of manure, clay, charcoal, zeolite, and calcium oxide on some properties of soil contaminated with cobalt

2017 ◽  
Vol 68 (3) ◽  
pp. 149-154 ◽  
Author(s):  
Milena Kosiorek ◽  
Mirosław Wyszkowski
Keyword(s):  
Soil Contamination ◽  
Soil Properties ◽  
Calcium Oxide ◽  
Soil Ph ◽  
Cation Exchange Capacity ◽  
Exchange Capacity ◽  
Base Saturation ◽  
Exchangeable Bases ◽  
Properties Of Soil ◽  
Hydrolytic Acidity

Abstract The study has been undertaken in order to determine the influence of different substances (manure, clay, charcoal, zeolite and calcium oxide) on soil pH, hydrolytic acidity, total exchangeable bases, cation exchange capacity, the base saturation of soil contaminated with cobalt (0, 20, 40, 80, 160, 320 mg·kg−1 of soil). The analysed properties of soil proved to be dependent on the cobalt contamination and the kind of substances. In the series without substances soil contamination with the highest doses of cobalt raised the soil’s hydrolytic acidity but depressed its pH, total exchangeable bases and base saturation. Among the substances applied to soil in order to neutralize the effect of contamination with cobalt, calcium oxide had the strongest influence on the soil’s properties. In the series with calcium oxide application the hydrolytic acidity was decreased and other soil properties were increased. Manure addition to soil had positive but weaker effect on analysed soil properties.

scholarly journals Suitability of leached soils of Western Serbia for potato growing

2021 ◽  
Vol 26 (52) ◽  
pp. 179-182
Author(s):  
Marijana Dugalić ◽  
Goran Dugalić ◽  
Ljiljana Bošković-Rakočević ◽  
Zoran Dinić ◽  
Anita Todorović
Keyword(s):  
Soil Amendment ◽  
Soil Types ◽  
Available Phosphorus ◽  
Soil Profiles ◽  
Agrochemical Properties ◽  
Biological Potential ◽  
Phosphorus And Potassium ◽  
Set Up ◽  
High Yields ◽  
Hydrolytic Acidity

Potato can be grown on a large number of soil types. In order to determine the suitability of leached soils for potato growing in Western Serbia, a trial was set up with the aim of observing agrophysical and agrochemical properties of this type of soil in the region of the Radočelo mountain massif in 2020. Three soil profiles were opened. Results pointed out that leached soils of Western Serbia are suitable for potato growing according to their agrophysical properties, but unfavourable as regards some agrochemical parameters (a low content of available phosphorus, high values of active, exchangeable, and hydrolytic acidity). Nevertheless, it is possible to achieve high yields that approach the biological potential of potato using appropriate soil amendment practices (timely application of proper amounts of the complex NPK fertiliser with increased phosphorus and potassium levels, basal liming of the soil along with manuring, and use of physiologically neutral nitrogen fertilisers).

Effects of farmyard manure and nitrogen fertilizers on mobility of phosphorus and sulphur in wheat and activity of selected hydrolases in soil

2014 ◽  
Vol 28 (1) ◽  
pp. 49-55 ◽  
Author(s):  
Joanna Lemanowicz ◽  
Anetta Siwik-Ziomek ◽  
Jan Koper
Keyword(s):  
Acid Phosphatase ◽  
Winter Wheat ◽  
Farmyard Manure ◽  
Mineral Nitrogen ◽  
Nitrogen Fertilizers ◽  
Available Phosphorus ◽  
Nitrogen Rate ◽  
Nitrogen Rates

Abstract The paper demonstrates the results of research on the mobility of phosphorus and sulphur in winter wheat fertilized with several rates (0, 20, 40, 60, 80 t ha-1) of farmyard manure and nitrogen (0, 40, 80, 120 kg N ha-1). The content of these nutrients was related to the activity of acid phosphatase and arylsulphatase in a Haplic Luvisol. The highest content of available phosphorus (91.58 mg P kg-1) was reported in the soil amended with farmyard manure at the rate of 60 t ha-1. The content of sulphates (VI) in the Haplic Luvisol was high and, on average, equal to 25.22 mg kg-1. The activity of acid phosphatase in the soil increased with increasing mineral nitrogen rates. The highest content of sulphates (VI) and the lowest activity of arylsulphatase were identified at the nitrogen rate of 40 kg N ha-1. The mobility of phosphorus in winter wheat was the highest when farmyard manure at the rate of 60 t ha-1 and mineral nitrogen at the rate of 120 kg N ha-1 were incorporated into the soil. The greatest translocation of sulphur was reported at the high farmyard manure rates (40, 60 and 80 t ha-1) and the nitrogen rate of 80 kg N ha-1.

scholarly journals Influence of Slope Gradient and Aspect on Soil Organic Carbon Content in the Region of Niš, Serbia

2021 ◽  
Vol 13 (15) ◽  
pp. 8332
Author(s):  
Snežana Jakšić ◽  
Jordana Ninkov ◽  
Stanko Milić ◽  
Jovica Vasin ◽  
Milorad Živanov ◽  
...  
Keyword(s):  
Land Use ◽  
Spatial Distribution ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Slope Aspect ◽  
Available Phosphorus ◽  
Organic Carbon Content ◽  
Slope Gradient ◽  
Phosphorus And Potassium ◽  
Uncultivated Land

Topography-induced microclimate differences determine the local spatial variation of soil characteristics as topographic factors may play the most essential role in changing the climatic pattern. The aim of this study was to investigate the spatial distribution of soil organic carbon (SOC) with respect to the slope gradient and aspect, and to quantify their influence on SOC within different land use/cover classes. The study area is the Region of Niš in Serbia, which is characterized by complex topography with large variability in the spatial distribution of SOC. Soil samples at 0–30 cm and 30–60 cm were collected from different slope gradients and aspects in each of the three land use/cover classes. The results showed that the slope aspect significantly influenced the spatial distribution of SOC in the forest and vineyard soils, where N- and NW-facing soils had the highest level of organic carbon in the topsoil. There were no similar patterns in the uncultivated land. No significant differences were found in the subsoil. Organic carbon content was higher in the topsoil, regardless of the slope of the terrain. The mean SOC content in forest land decreased with increasing slope, but the difference was not statistically significant. In vineyards and uncultivated land, the SOC content was not predominantly determined by the slope gradient. No significant variations across slope gradients were found for all observed soil properties, except for available phosphorus and potassium. A positive correlation was observed between SOC and total nitrogen, clay, silt, and available phosphorus and potassium, while a negative correlation with coarse sand was detected. The slope aspect in relation to different land use/cover classes could provide an important reference for land management strategies in light of sustainable development.

Alteration of adenoid tissue alkaline and acid phosphatase in children with secretory otitis media

2006 ◽  
Vol 70 (6) ◽  
pp. 1069-1076 ◽  
Author(s):  
Snezana Jesic ◽  
Ljuba Stojiljkovic ◽  
Zeljko Petrovic ◽  
Vladimir Djordjevic ◽  
Vladimir Nesic ◽  
...  
Keyword(s):  
Acid Phosphatase ◽  
Otitis Media ◽  
Secretory Otitis Media ◽  
Adenoid Tissue ◽  
Alkaline And Acid Phosphatase
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