00549naa#a2200181#i#450# EN\\bibl\101689 20250828100924.4 2588-0209 20180625b2018####ek#y0engy0150####ca RU ASSESSMENT OF OPTIMUM SOIL FEATURES AND PLANT FOOD COMPOUND DEFICIENCY USING THE METHODS BASED ON FEEDBACK PRINCIPLES Journal article Moscow Electronic science 2018 0 с. Journal article local Savich V Borisov B Gukalov V mshj.ru