Feeding with water-soluble fertilizers increases the mini tubers yield

The purpose of the study is to study the effect of root and non-root top dressing with water-soluble fertilizers on the productivity and quality of potato microplants grown in an enclosed environment. The research was carried out in 2023-2024 in the summer greenhouses of the Kostroma Research Agricultural Institute Branch of Russian Potato Research Center. The material for the study was improved potato plants of the Ariel variety. The initial plants were used in vitro to initiate the experiment. The plants were planted in 5-liter vessels. The pots were filled with Agrobalt grade C soil based on peat with a moisture content of 65% and an acidity pH of salt extract of 5.6-6.0. The factors studied are chelated water–soluble fertilizers Aquarin 13, 13-41-13+ME, Aquarin 15, 3-11-38+ME, water-soluble fertilizer Monokalium phosphate, with a content of P2O5- 50% and K2O – 33%. The treatment of plants with water-soluble fertilizers led to an increase in plant height according to the experimental variants from 13.7% to 23.6% relative to the control. A different combination of water-soluble fertilizers contributed to an increase in the yield of standard mini-tubers per square meter in all experimental variants compared with the control by a significant amount of 12.3-19.0 pcs. In the Aquarin 13 + Aquarin 15 + Monokalium Phosphate variant, the largest increase in tubers was obtained in the amount of 19 pcs/. When using water–soluble fertilizers, the yield of standard mini-tubers with a diameter of 28-50 mm increases by 0.76 - 1.12 kg/m2 compared to the control. The greatest significant increase (41.3%) was obtained in the variant with Aquarins and Monokalium Phosphate. Experimental studies show that the use of various combinations of water-soluble fertilizers contributed to an increase in the total yield of the number of mini-tubers by 0.9-1.7 leaves per plant (or 19.2-35.3%) compared with the control. The combined use of water-soluble fertilizers Aquarin 13, Aquarin 15 with Monokalium phosphate increases the number of tubers of large and medium fractions, while reducing the number of tubers of small fractions. At the same time, the average weight of mini tubers increases relative to other option.

картофель, Ариэль, микрорастения, водорастворимые удобрения, мини-клубни