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

Abstract

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 rd class with an average available phosphorus (P E-R ). 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 E-R ). The calculated enzymatic index of soil pH (AlP/AcP) ranged from 0.11 to 0.72.

Changes in the Activity of Phosphatase and the Content of Phosphorus in Salt-Affected Soils Grassland Habitat Natura 2000

“…In most cases the values exceed 0.50 (site 2 and sites from 8 to 16) ( Table 2), which in the case of the soil analysed was confirmed with the potentiometer method of pH in CaCl 2 measurement, which is connected with the fact that phosphomonoesterases are the enzymes which are one of the most sensitive indicator of change of soil pH (Dick et al 2000, Krzyżaniak andLemanowicz 2013).…”

“…Available phosphorus is only a very small fraction of total P in the terrestrial ecosystems (less than 6%). Many researchers have reported that the fractions and dynamics of P in soil also depend upon various soil characteristics such as pH (Liang et al 2010;Lemanowicz 2013), organic matter concentrations (Xiao et al 2012;Lemanowicz and Bartkowiak 2013).…”

The content of carbon, nitrogen, phosphorus and sulphur in soil against the activity of selected hydrolases as affected by crop rotation and fertilisation

“…The lowest values of the enzymatic index of pH were recorded in the soil from treatments where the plants were fertilised with nitrogen at the rate of N 2 as well as in the soil sampled in 2012 -four years after the FYM application (Fig. ) The enzymatic indicator of the pH level can be used as an alternative method to determine soil pH as well as the changes in it (Lemanowicz, 2013). In the soil from the experiment in Grabów there was shown a positive correlation between the content of the nutrients of organic matter of soil and the activity of the hydrolases.…”

“…Ammonium nitrate is an acid fertiliser; hence such an effect on both phosphatases. Such conditions enhance activity of acid phosphatase which dominates in acid soils (Dick et al, 2000;Dodor, Tabatabai, 2003;Lemanowicz, 2013).…”

Changes in phosphorus content, phosphatase activity and some physicochemical and microbiological parameters of soil within the range of impact of illegal dumping sites in Bydgoszcz (Poland)

“…The type and the amount of the waste deposited, containing particularly heavy metals, flame retardants, chlorofluorocarbons, polycyclic aromatic hydrocarbons, polybrominated diphenyl ethers and dioxin-like compounds, permeate into the soil and, consequently, have a great influence on the number of microorganisms, qualitative selection and the products of metabolism they secrete (Fraczek and Ropek 2011;Pradhan and Kumar 2014). Dumping sites are also a source of phosphorus (P), the basic nutrient for plants besides carbon (C) and nitrogen (N) (Lemanowicz 2013). Phosphorus circulation is connected both with the soil origin and land development (Parent et al 2014).…”