Statistical analysis of soil water content differences after biochar application andits repeated application during 2020 growing season

Abstract

Soil water content is an important factor influencing crop yield quantity and quality. Extreme meteorological events are more frequent in our geographical conditions in last years and they affect soil water storage. Biochar is an organic material and one of its properties is soil water holding for a longer time. This is one of great benefits during non-precipitation days. Our study is focused on soil water content changes with biochar amendment in comparison to soil without biochar. In addition, we analyzed biochar repeated application as well. It means addition another biochar dose into the soil where the biochar had been applied previously. Our results confirmed positive effect of biochar application and repeated application on soil water content. The soil water regime with biochar repeated application was the most stable in 2020 in comparison to other variants of experiment.

Study on hydrophysical and chemical parameters of Polish and Slovak soils modified with zeolitic additives

“…This was due to the fact that the additive particles filled the space between the soil particles and as a result, the water was filtered lower than unmodified soil (Bilardi et al, 2020). Also other authors observed impact of soil amendments (biochar) on K values in different soil (Toková et al, 2023;Vitková et al, 2019;Brockhoff et al, 2010;Uzoma et al, 2011). In the case of Slovak Silty clay soil, the opposite effect was observed.…”

Study of the saturated hydraulic conductivity by falling–head method for different soil types amended with different biochar fraction size

“…Coarse biochar particles increased intraporosity and fine biochar particles decreased hydraulic conductivity due to reduced macropores. Conversely, in loamy soils, biochar tends to reduce soil bulk density (Toková et al, 2020), increase soil porosity (Vitková et al, 2019), improve soil texture (Sun and Lu, 2014;Walters and White, 2018), and consequently increase K (Esmaeelnejad et al, 2017) and soil water content (Vitková et al, 2021). According to previous studies of the effect of biochar on fine textured clay soils, its positive effect is not clearly demonstrable (Castellini et al, 2015).…”