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For the first time the authors have revealed a cultural species Betula raddeana Trautv. of the genus Betula L. (Betulaceae Dumort.), for the flora of the Nakhchivan AR collected 02.12.2018 in the city of Nakhchivan. New locations of Betula pendula Roth. were also revealed Ordubad district – Paragachay, Agdara, between the villages of Mazra and Urmys, in the vicinity of the settlements of Bilav, Paraga and Bilav-Tivi 1600–2600 m above sea level. The birch species are of national economic and medical importance.

The article contains data from studies conducted in 2015–2016 in the North-Еastern part of Kazakhstan. In the experiments the effect of various doses of non-traditional fertilizer together with mineral fertilizer on the yield of sunflower was investigated. Various doses and ratios of mineral fertilizers have been applied, which can affect the yield of sunflower. As a source material, varieties of sunflower of Russian breeding Zarya and a hybrid of Fortimi USA breeding and non-traditional fertilizers – zeolite are taken. In order to determine the effect on the fertility of soils, the agrochemical characteristics of soils in land areas and the content of mobile forms of nutrients were studied. The main agrochemical characteristics and content of mobile forms of nutrients for soil of land plots are investigated in the article.