POTATO VARIETIES’ RESPONSE TO THE FORMATION OF BIOMETRIC INDICATORS BY THE TREATMENT OF CROP WITH GROWTH STIMULATORS AND MICROFERTILIZERS
DOI:
https://doi.org/10.32636/agroscience.2026-(5)-2-2Keywords:
potatoes, planting fraction size, nutrition, growth stimulant, microfertilizer, leaf surface, tuber, yield.Abstract
With the growing demand for early potatoes as a valuable, high-quality food product, as well as the limited area and variability of climatic conditions in the areas where its cultivation is concentrated, there is a need to improve agrotechnological approaches to its cultivation. The aim of the study was to determine the influence of the fertilization system and the size of the planting fraction on the development and adaptive properties of early-ripening potato varieties in the conditions of the southern part of the Western Forest-Steppe of Ukraine. The article presents the results of experimental studies of the influence of individual elements of the fertilization system and the size of planting tubers on the development of the vegetative mass of potato plants and the formation (tying) of tubers of early-ripening potato varieties. It was found that on the 60th day after planting, the highest biometric indicators, namely: stem density, its weight and plant height of the Spas and Slauta potato varieties, were noted in the variant with the application of mineral fertilizers in the recommended dose and additional cultivation with the growth stimulator Nova-Marin and foliar application of the microfertilizer Nova-Macro when planting with fractions of 28-40 and 40-60 mm. The largest number of tubers was formed by the Slauta potato variety when planting with seed material with a size of 40-60 mm and the application of the main nutrition and growth stimulator Nova-Marin.
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