00542naa#a2200181#i#450# EN\\bibl\10580 20260311192057.3 2073-0462 20151225b2015####ek#y0engy0150####ca RUS RU DYNAMICS OF NUTRITION ELEMENTS, DEPENDING ON THE CALCULATED DOSES OF MINERAL FERTILIZERS Journal article Kazan Kazan state agrarian University 2015 3 с. Journal article local Samarkin Aleksey Shashkarov Leonid zh-szf.ru