Abstract
The biomass-based soils are used in the ecological agriculture, being already proposed in sustainable organic production systems with reduced costs for assuring the good cropping productivity, and also high quality of the crops. For the elimination of the synthetic inorganic fertilizers’ utilization on soil, the use of certain types of residual biomass in mixture with the reference soil was proposed as they have a positive impact on the adsorption and absorption of nutrients and water for the nutrition of plants. The aim of this paper is to present four mixtures of reference soil and residual biomass, considered as biosoil used as support for development of wheat seeds. These biosoils were characterized in terms of real density, actual and potential pH, content of total organic carbon, humus, exchangeable calcium, total and available nitrogen and phosphorus, and the trends of grain seeds germination and plants growth were registered in association with the evolution of soil pH for a period greater than a month. The results encourage the use of these biosoils (mixtures of soil with residual biomass) as support for plants cropping.
Highlights
The long-term cultivation of crops perrenials or annuals - causes intensive depletion of soil nutrients, and treatment with pesticides and fungicides against diseases and pests leads to the accumulation of heavy metals and other persistent organic pollutants (Vita et al, 2018; Compobenedetto et al, 2021)
The aim of this paper is to present four mixtures of reference soil and residual biomass, considered as biosoil used as support for development of wheat seeds
The addition of residual biomass to the control/reference soil influences the development of plants in all experimental tests and permits the continuing study of these biosoils for possible applications in the ecological/ organic agriculture organized at large and intense practice scale
Summary
The long-term cultivation of crops perrenials or annuals - causes intensive depletion of soil nutrients, and treatment with pesticides and fungicides against diseases and pests leads to the accumulation of heavy metals and other persistent organic pollutants (Vita et al, 2018; Compobenedetto et al, 2021). 1 "Gheorghe Asachi" Technical University of Iasi, "Cristofor Simionescu" Faculty of Chemical Engineering and Environmental Protection, Department of Chemical Engineering 73, Prof.Dr docent D. Mangeron Blvd, Iasi, Romania 2 "Gheorghe Asachi"Technical University of Iasi, "Cristofor Simionescu" Faculty of Chemical Engineering and Environmental Protection, Department of Environmental Engineering and Management 73, Prof.Dr docent D. Mangeron Blvd, Iasi, Romania 3 "Gheorghe Asachi"Technical University of Iasi, "Cristofor Simionescu" Faculty of Chemical Engineering and Environmental Protection, Department of Organical, Biochemical and Food Engineering 73, Prof.Dr docent D. The lack of microelements in the soil, such as B, Mn, Zn, Mo, Fe, disrupts a number of metabolic processes (photosynthesis, activity of redox enzymes, carbohydrate metabolism etc.), which causes a decrease in plant productivity and product quality (Zahir et al, 2003; Tandzi and Mutengwa, 2020)
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