Variation of elementary chemical composition at a culture of chemichally fertilized potato in an area belonging to TCE 3 Brazi, Girov, Neamt county

Abstract

The elementary composition of plants varies in relation to several factors, but fertilization is a restrictive and limiting factor. The study has in view this aspect and highlights the impact of fertilizer doses, but also their chemical composition, on elementary chemical composition, on a potato culture produced in climatic and soil conditions in Neamt county. A fond fertilization with 375 kg / ha with NPK and an additional fertilization in vegetation with a formula of 16-20+18-46+Kristalon, achieves an accumulation in haulm of 0.43; 0.56 and 3.76% N, P, K in d. s. (ensuring medium to normal), and in tubers an accumulation of 1.04; 0.59 and 1.80% NPK in d.s.(ensuring normal to very good). Corroborated with soil fertility status as well as with other eco-pedo-climatic factors, these results are recorded in a register of the favorability of culture in the context of this scheme of fertilization.