Abstract
Studies on the influence of polymer hydrogels from different manufacturers on the morphometric parameters of microalgae cells of Chlorella vulgaris, Eustigmatos magnus and Scotiellopsis sp. and the possibility of their joint use in sowing seeds of Triticum aestivum and Secale cereale in barren substrates are presented. The optimal effects of a particular algae crop in combination with a particular hydrogel and their dependence on the soil type with a joint effect on the seeds of cereal crops were revealed. The germination ability analysis of higher plants seeds of two studied species showed the effectiveness of “BSPU” hydrogel with E. magnus culture liquid when sown on sand. Indicators of the length of sprouts and roots of cereals seeds allowed us to build a number of effective effects of microalgae: E. magnus > S. sp. > Ch. vulgaris. The results of the study revealed the individuality of the crop in combination: substrate/hydrogel/microalgae, which must be taken into account for the possibility of their effective joint use in reclamation processes.
Highlights
The intensification of agriculture poses challenges to agriculture related to the need to increase the potential and fertility of the soil
For E. magnus, similar distortions were revealed in three experimental samples on the 7th day
By analyzing the results obtained on the germination of Triticum aestivum and Secale cereal seeds, it is possible to identify the optimal effect of a particular algae crop in combination with a particular hydrogel and their dependence on the type of soil
Summary
The intensification of agriculture poses challenges to agriculture related to the need to increase the potential and fertility of the soil. Such negative processes as soil depletion by biogenic composition, erosion, and destructuring remain one of the most urgent problems nowadays. The development and implementation of a set of measures to reduce the negative qualities of soils in agriculture contribute to the growth of agricultural productivity [1, 2]. Hydrophilic acrylic polymers (PAA) are widely used in various fields of the national economy as super absorbents. The introduction of PAA-based preparations into the soil of arid regions has an evident positive effect on the growth and survival of plants [4]. Hydrophilic polymers can change soil characteristics due to their ability to adsorb a large amount of water, by 400 or more times exceeding its own weight [4]
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