The influence of mineral fertilizers and growth regulators on formation of the symbiotic apparatus of field pea varietieS in the conditions of Western Forest-Steppe of Ukraine
Формування симбіотичного апарату гороху посівного залежно від удобрення мінеральними добривами та регуляторів росту в умовах Лісостепу Західного

M. I. Bahmat, STATE AGRARIAN AND ENGINEERING UNIVERSITY IN PODILIA, D. P. Plahtiy, K. S. Nebaba, STATE AGRARIAN AND ENGINEERING UNIVERSITY IN PODILIA, STATE AGRARIAN AND ENGINEERING UNIVERSITY IN PODILIA
2020 PLANT AND SOIL SCIENCE  
The article presents the main results reached in our study of the influence of mineral fertilizers and growth regulators on formation of the symbiotic apparatus of field pea varieties of the conditions of Western Forest-Steppe. Experimental part of the research was carried out during 2016-2018 in the experimental field of the Training and Production Center "Podilya" at the State Agrarian and Engineering University in Podilya. The field experiment was laid down in the research ten-digit crop
more » ... ten-digit crop rotation. Soil of the experimental field was the typical black earth, characterized as deep, low-humus, and heavy gravel on forest-like loams. The research was set under the optimal conditions for the formation of nodulation apparatus on the roots of the following pea varieties: Gotovsky, Chekbek and Fargus. During the growth stage BBSN 60-69, with application of N30P30K45 fertilizer combined with Vimpel growth regulator, was recorded both the highest general number of nodules per plant, and the highest number of active nodules. With the same combination of mineral fertilizer and growth regulator, the Gotovsky variety demonstrated the rates of 43,2 nodules per plant, including 19,1 active nodules per plant; the Checkback variety demonstrated the rates of 52.2 nodules per plant, including 23.4 active nodules per plant; the Fargus variety demonstrated 41.6 nodules, 16.2 active nodules per plant, respectively.
doi:10.31548/agr2020.03.033 fatcat:kp2tf4q5gbcbrfgzqo6txmzdlq