Effects of Liming and Fertilization on the Dehydrogenase and Catalase Activities

doi:10.37358/rc.19.10.3464

Abstract

In this paper we provide new data about the soil enzyme activity as a biological process, which is an indicator for impacts of factorial combinations of lime and fertilizers applications. Five plots divided into fifteen subplots were sampled for determination of the enzymatic indicators of soil quality, based on the actual and potential dehydrogenase and catalase activities. The research revealed that limed soil samples, in comparison with unlimed ones, resulted in significantly higher soil enzymatic activities (p<0.05) in the upper (0-20 cm), while in the deeper (20-40 cm) layer, only catalase activity was significantly higher (at least at p<0.02). Mineral fertilization, in comparison with its farmyard manuring, led to an insignificant increase in each of the three enzymatic activities determined, excepting catalase activity which was significantly higher (0.05>p>0.02) in the 0-20 cm layer. Based on the absolute values of the enzymatic activities, the enzymatic indicators of soil quality (EISQ) were calculated. The mineral NPK-fertilization and low dose of lime in the 0-20 cm layer, and mineral NP-fertilization and low dose of lime in the 20-40 cm layer proved to be the best variants of fertilization. The enzymatic indicators of soil quality in these variants reached the highest values: EISQ=0.821 and EISQ=0.889, respectively, indicating the presence of high enzymatic activities. It should be emphasized that a balanced application of lime, mineral fertilizers and farmyard manure leads to the formation of favorable conditions for the development of microorganisms, growth of plants and for an intense and lasting enzymatic activity. Keywords: catalase, dehydrogenase, soil, fertilizers, lime

Highlights

Effects of Liming and Fertilization on the Degydrogenase and Catalase ActivitiesALINA DORA SAMUEL1, SIMONA BUNGAU2, ILONA KATALIN FODOR2*, DELIA MIRELA TIT2*, CRISTIAN FELIX BLIDAR1, ANA TEODORA DAVID3, CARMEN ELENA MELINTE (FRUNZULICA)4,5 1University of Oradea, Faculty of Sciences, 1 Universitatii Str., 410087, Oradea, Romania 2University of Oradea, Faculty of Medicine and Pharmacy, 29 Nicolae Jiga Str., 410028, Oradea, Romania 3Agricultural Research and Development Station, 7 Baia Mare Str., Livada, Bihor, Romania 4 Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd., 060474, Bucharest, Romania 5 Politehnica University of Bucharest, Faculty of Applied Chemistry and Materials Science, Analytical Chemistr y and Environmental Engineering Department, 1-7 Gh
In this paper we provide new data about the soil enzyme activity as a biological process, which is an indicator for impacts of factorial combinations of lime and fertilizers applications
These findings, like those registered in all variants of fertilization, prove the role played by the application of lime, fertilizers and farmyard manure in soil, in the creation of the enzymatic potential in soil

Summary

Effects of Liming and Fertilization on the Degydrogenase and Catalase Activities

ALINA DORA SAMUEL1, SIMONA BUNGAU2, ILONA KATALIN FODOR2*, DELIA MIRELA TIT2*, CRISTIAN FELIX BLIDAR1, ANA TEODORA DAVID3, CARMEN ELENA MELINTE (FRUNZULICA)4,5 1University of Oradea, Faculty of Sciences, 1 Universitatii Str., 410087, Oradea, Romania 2University of Oradea, Faculty of Medicine and Pharmacy, 29 Nicolae Jiga Str., 410028, Oradea, Romania 3Agricultural Research and Development Station, 7 Baia Mare Str., Livada, Bihor, Romania 4 Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd., 060474, Bucharest, Romania 5 Politehnica University of Bucharest, Faculty of Applied Chemistry and Materials Science, Analytical Chemistr y and Environmental Engineering Department, 1-7 Gh. In this paper we provide new data about the soil enzyme activity as a biological process, which is an indicator for impacts of factorial combinations of lime and fertilizers applications. It should be emphasized that a balanced application of lime, mineral fertilizers and farmyard manure leads to the formation of favorable conditions for the development of microorganisms, growth of plants and for an intense and lasting enzymatic activity. Among agricultural practices, ploughing, crop rotation, liming, manuring and fertilization have beneficial, harmful or neutral effects on the trinity formed by plants, soil organisms (microbes and fauna) and soil. Little work has been done to develop methods or technologies that use soil enzymatic activity data as inputs into soil fertility management decisions [19]. We continued to research ways that relate soil enzyme activities to management practices in a preluvosoil submitted to a complex experiment at the Agricultural Research and Development Station in Livada (Satu Mare county)

Experimental part Materials and methods

DIFFERENT AMENDMENTS

Findings

Conclusions