Changes in the Content of Soil Phosphorus after its Application into Chernozem and Haplic Luvisol and the Effect on Yields of Barley Biomass

Abstract

The pot experiment was established in vegetation hall in the year 2015. Spring barley, variety KWS Irina, was grown. Two different soils -chernozem from Brno (with a low phosphorus content and alkali soil reaction -7.37) and haplic luvisol from Jaroměřice nad Rokytnou (with a high phosphorus content and slightly acid soil reaction -6.01) were used for comparison. The rates of phosphorus in the form of triple superphosphate (45 % P2O5) were increased from 0.3 -0.6 -1.2 g per pot (5 kg of soil -Mitscherlich pots). Nitrogen was applied in the form of CAN (27 % N) at a rate of 1 g N per pot in all the treatments incl. the control. Using statistical analysis, significant differences were found between the two soil types both in terms of the postharvest soil P content and yields of aboveground biomass. The content of post-harvest soil phosphorus increased significantly with the applied rate (96 -141 -210 mg/kg in chernozem and 128 -179 -277 mg/kg in haplic luvisol). Dry matter yields of the aboveground biomass grown on chernozem were the lowest in the control treatment not fertilised with P (38.97 g per pot) and increased significantly with the P rate applied (46.02 -47.28 g per pot), although there were no significant differences among the fertilised treatments. On haplic luvisol phosphorus fertilisation was not seen at all, demonstrating that the weight of the biomass in all the treatments was balanced (48.12 -49.63 g per pot).

The effect of municipal sewage sludge on the content, use and mass ratios of some elements in spring barley biomass

“…The slight increase in the content of macroelements improved soil fertility, and in consequence increased the yields of spring barley grown in the experiment. A similar yield-forming effect due to the use of sewage sludge and mineral fertilization was observed also by other authors (Wei and Liu 2005, Fischer et al 2011, Gondek 2012, Lošák et al 2016. As a rule, using municipal sewage sludge increases the content of organic carbon, total nitrogen and available forms of P, K, Mg, which found confirmation in the studies by Moreno et al (2003) and Shaheen et al (2014).…”

Low phosphorus availability increases shoot boron concentration in canola and potato but not in wheat

“…Phosphorus (P) is an essential macronutrient for plant growth and development, and P deficiency significantly reduces plant biomass and crop yields (Chiou and Lin 2011, Wang et al 2015, Lošák et al 2016. A large proportion of global agricultural soils contain suboptimal available phosphorus for the growth of many plant species (Lynch 2011).…”

Effect of Municipal Sewage Sludge on Soil Chemical Properties and Chemical Composition of Spring Wheat

“…Under the influence of microorganisms, chemical compounds introduced to the soil with sewage sludge undergo complex processes: mineralization, sorption, immobilization, nitrification, denitrification, volatilization into the atmosphere, uptake by plants, and leaching into the soil profile [19,20,29]. The use of municipal sewage sludge in agriculture contributes to the improvement of soil chemical properties and to the increase in yield of cultivated plants [2,18].…”