Assessment of the Possibilities of Using Cross-Linked Polyacrylamide (Agro Hydrogel) and Preparations with Biostimulation in Building the Quality Potential of Newly Planted Apple Trees

Abstract

The research was carried out in a commercial apple orchard in southeastern Poland. The aim of the research was to evaluate the effect of fertilizer with biostimulation and humic acids with algae extracts and agrogel on the reception and growth of newly planted maiden apple trees of the ‘Gala Must’ variety. One-year-old budwoods were planted annually on the site where fruit trees had grown for 20 years. For the purpose of the experiment, old trees were grubbed up every year in autumn. The experiment assessed the growth and quality of apple trees in the fall of the first year after planting them permanently using a biostimulator in the form of fertilizer and agrogel. On the basis of 3-year studies, it was shown that the application of the assessed preparations had a positive effect on the quality parameters of the trees. The experiment showed the positive effect of the preparation with biostimulation on the best growth and quality parameters every year, which was confirmed by the multidimensional cluster analysis. The fact that the use of agrogel significantly modified the height of the evaluated apple trees in the second year of the study, when lower amounts of rainfall were recorded, is particularly noteworthy.

Hydrogel Improved Growth and Productive Performance of Mango Trees under Semi-Arid Condition

“…Hydrogel application was in coincidence with the cell expansion stage, which continued for a longer period compared to the control. The present result is confirmed by the previous work of Kaplan [ 23 ], who found that the application of hydrogel at a moderate concentration gave maximum growth parameters using a level of 500 g∙plant −1 apple ‘Gala Must’ variety. These results concur with those of Awad et al [ 24 ] in the apple seedling and those of Cavalcante et al [ 25 ] in passion fruit.…”

“…This result is related to the improvement of soil water and nutrient absorption by adding hydrogel. The nutrients taken by hydrogels from the soil are released by plants through an exchange relationship when they need nutrients for growth [ 1 , 23 ]. This action leads to improving the growth-boosting effect of hydrogel application.…”

Health—Promoting Properties of Highbush Blueberries Depending on Type of Fertilization

“…As reported by DeBoer [19], polyphenols in plants not only have a health-promoting effect on the human body but also perform important defined functions in plant organisms. Many authors have reported that the use of programs based on seaweed extracts increases the biological performance of plants, has an anti-stress effect on plants, and strengthens the defined functions of plant organisms [28,45,46]. In a research paper by Sylvia et al [47], the authors evaluated the effects of seaweed extracts on the antioxidant activity and polyphenol content of fruit, and found a program containing a combination of several biostimulants to be the most effective.…”

Polyacrylamide hydrogels prepared by varying water content during polymerization: Material characterization, reswelling ability, and aging resistance

“…For example, see the reviews on the techniques of hydrogel polymerization (synthesis parameters, various cross-linking methods), [2] hydrogel microarchitecture (solvent casting/particle leaching, freeze-drying, gas foaming, or electrospinning), [3] and hydrogel nanofibers (synthesis, properties, and applications). [4] Polyacrylamide (PAAm) hydrogels can be used in many different areas ranging from oil recovery, [5][6][7] over medicine or landscape cultivation, [8][9][10][11] to waste water treatment. [12][13][14] Although acrylamide monomer (AAm) is neurotoxic, the PAAm polymer is non-toxic [15,16] and PAAm hydrogels are therefore widely used especially in medicine.…”