Evaluating of soil sulfur forms changes under different fertilizing systems during long-term field experiments

Abstract

The aim of this work was to evaluate the changes of different soil sulfur forms during long-term field experiments supplied with sewage sludge (SS), farmyard manure (FYM) or mineral fertilizers. The experiment was established at three different sites with the crop rotation of potatoes, wheat and barley. Fertilizing system was based on the same nitrogen dose per the whole crop rotation. Soil samples from the beginning of the experiment (1996) and at the end of each crop rotation were analysed after all three crops harvest. Similar tendencies of changes in water extractable (S w ), adsorbed (S ads ), 1 mol/L HCl estimated (S HCL ) sulfur and their sum of (∑S) related to the fertilizing systems were observed among all studied sites. A decreasing tendency of ∑S in soil was observed during the experiment (except for the year 2005). The biggest decrease was always visible compared to control treatment. Mineral fertilizers (S added with superphosphate) appeared to be the best source of S HCL . Application of SS increased the S w content in soil samples after potatoes harvest, whereas a decreasing tendency among the following crops was visible. Contents of other S forms (S w at control, FYM and mineral fertilizers included) were usually balanced during the crop rotation.

Depth wise distribution of available nutrients of soils of Langate block of district Kupwara of Kashmir valley

“…The type of clay mineral, soil pH, presence of hydrous oxides in soil, soil depth and soil organic matter and sulphur mineralization and immobilization determine the availability of sulphur in soil. The results are in agreement with Kulhanek et al (2016) [15] and Bier and Singh (2018) [4] .…”

Sulphur status in agricultural soils determined using the Mehlich 3 method

“…The authors reported a decrease for all studied S fractions for the control and FYM. Changes of different soil sulphur forms under different fertilizing systems (Kulhánek et al 2016) also showed that the biggest decrease was in the control treatment. From the results of both publications mentioned in this paragraph it is clear that the results estimated using the Mehlich 3 method follow the results of commonly used analytical methods used mainly for estimating of mineral S in soil.…”

Using Waste Sulfur from Biogas Production in Combination with Nitrogen Fertilization of Maize (Zea mays L.) by Foliar Application

“…According to results of Engardt et al [ 11 ], sulfur deposition in Europe will decrease until, at least, 2050. For example, in the Czech Republic, atmospheric sulfur deposition is about 5 kg/ha per year [ 12 ], so there is a shortage of sulfur in the soil, as it has been presented by many authors [ 13 , 14 , 15 , 16 , 17 , 18 ]. According to Zbíral et al [ 19 ], a statistically highly significant decrease in the soil S content caused by reduction of SO 2 emissions in the long-term field experiments in Czech Republic from 33 mg/kg in 1981 to 8 mg/kg in 2017.…”