The main indicators of soil fertility based on the results an agrochemical survey agricultural lands in Chernivtsi region XI round (2016–2020) are given. It was established that acidity solution is dominated by close to neutral (31.8%) and (36.5%). weighted average indicator saline pH 5.8, which corresponds a reaction solution. According level humus provision, soils with content prevail (66.7%)...

Silicon (Si) is a macroelement in plants. The biological effects and mitigation mechanisms of silicon under environmental stress have become hot topics. The main objectives of this study were to elucidate the roles of Si in alleviating the effects on the phenotype, micromorphology and anatomy of the leaves of rice seedlings under acid rain stress. The results indicated that the combined or sing...

Stoichiometric homeostasis of element composition is one of the central concepts of ecological stoichiometry. We analyzed concentrations of macroelements (C, N, P, Ca, K, Mg, S), microelements (Cu, Fe, Mn, Mo, Ni, Zn) and beneficial elements (Na, Se, Si) in submerged macrophytes, water and sediments across 20 Yunnan plateau lakes. We predicted that tissue element composition in submerged macrop...

We explored two methods for obtaining aqueous extracts: boiling and soaking of Baltic seaweeds (EB and ES, resp.). Algal extracts were characterized in terms of polyphenols, micro- and macroelements, lipids content, and antibacterial properties. The utilitarian properties were examined in the germination tests on Lepidium sativum for three extract dilutions (0.5, 2.5, and 10%). It was found tha...

In the seismic performance assessment of reinforced concrete (RC) frames, a reliable estimation capacity unreinforced masonry (URM) infill walls is utmost importance to ensure structural safety conditions. With particular attention out-of-plane (OoP) URM after in-plane (IP) damage, issue defining analytical prediction models for an ongoing study. this paper, empirical equations are proposed eva...

In this study, the plants of maize (Zea mays L.cv.ksc700) were grown in Hoagland solution containing 1, 3 and 5 mM KH2PO4 or K2HPO4 under controlled conditions. At similar levels of mono and diphosphate, plants supplied with monophosphate have produced higher content of dry matter and characterized with higher total chlorophyll content and longer and well proliferated root system than those tre...

Seismic assessments of historical masonry buildings are affected by several sources epistemic uncertainty. These mainly the material and modelling parameters displacement capacity elements. Additional uncertainty lie in non-linear connections, such as wall-to-wall floor-to-wall connections. Latin Hypercube Sampling was performed to create 400 sets 11 parameters. The proposed approach is applied...

This paper aims to develop numerical approximations of the Keller–Segel equations that mimic at discrete level lower bounds and energy law continuous problem. We solve these for two unknowns: organism (or cell) density, which is a positive variable, chemoattractant non-negative variable. propose algorithms, combine stabilized finite element method semi-implicit time integration. The stabilizati...