Browsing by Author "Kuscu I."

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Changing of soil properties and urease–catalase enzyme activity depending on plant type and shading
(2019-03-01) Kuscu I.
Changes in urease and catalase enzyme activities were investigated in the soils of plants grown under different shade conditions to reveal how the shade conditions and sapling species affect the urease and catalase enzyme activities in the soil. In this study, four different plant species were grown under five different shade conditions during one vegetation period, and soil analyses were performed to investigate the change in urease and catalase enzyme activities. As a result, it was determined that, of the soil characteristics considered, urease, EC, lime, OM, P, and K differed significantly according to the plant species, while catalase, urease, EC, and OM differed significantly according to the amount of light. In addition, it was found that soil characteristics showed different levels of variation depending on the light in the areas where different plant species were grown. The amount of light was linearly correlated with EC and with OM, while catalase and urease were in a linear relationship with each other. EC was statistically significantly correlated with all the characteristics except urease; this relationship was negative with light, P, and K. The strongest relationship was between lime (CaOH) and OM.
Changing of soil properties and urease-catalase enzyme activity depending on plant type and shading.
(2019-02-22T00:00:00Z) Kuscu, Inci Sevinc Kravkaz; Kuscu, ISK
Changes in urease and catalase enzyme activities were investigated in the soils of plants grown under different shade conditions to reveal how the shade conditions and sapling species affect the urease and catalase enzyme activities in the soil. In this study, four different plant species were grown under five different shade conditions during one vegetation period, and soil analyses were performed to investigate the change in urease and catalase enzyme activities. As a result, it was determined that, of the soil characteristics considered, urease, EC, lime, OM, P, and K differed significantly according to the plant species, while catalase, urease, EC, and OM differed significantly according to the amount of light. In addition, it was found that soil characteristics showed different levels of variation depending on the light in the areas where different plant species were grown. The amount of light was linearly correlated with EC and with OM, while catalase and urease were in a linear relationship with each other. EC was statistically significantly correlated with all the characteristics except urease; this relationship was negative with light, P, and K. The strongest relationship was between lime (CaOH) and OM.
Relationship between enzyme activity (Urease-catalase) and nutrient element in soil use
(2018-01-01) Kuscu I.; Cetin M.; Yigit N.; Savaci G.; Sevik H.
This study determined the relationship of urease and catalase enzyme activity and nutrient elements related to the use of soil. We identitified urease and catalase enzymes and calcium (Ca), magnesium (Mg), iron (Fe), zinc (Zn), copper (Cu), and manganese (Mn) as nutrient elements, and total nitrogen (N), phosphorus (P) useful for plants, and exchangeable potassium (K) were identified in soils used for different purposes (agriculture, forest, and pasture), and the relationships between urease and catalase enzymes and these nutrient elements were revealed. Soil samples were taken from 60 points as 2 aspects x3 areas x2 depths x5 recurrences and the analyses were conducted on each sample with 3 recurrences. Duncan’s test was carried out and the results were evaluated. The strongest relationships are identified between Mg and Fe (0.854), and Mg and Mn (0.867). The results of the study indicate that the depth factor has an effect only on catalase enzyme activity and Zn, soil use has an effect only on catalase enzyme activity and urease enzyme activity and Ca and Zn among micronutrient elements, and the aspect factor has an effect on all nutrient elements other than Zn - in contrast to other factors.