Physico-chemical and agrochemical indicators of typical chernozem and isohumisol under various tillage and fertiliser systems

The relevance of examining the physico-chemical and agrochemical indicators soils lies in fact that these properties determine level quality agricultural crops, thus affecting food security country as a whole. In this regard, purpose study is to establish longterm impact different soil tillage fertilisation technologies on profile distribution physicochemical typical chernozem isohumisol soils. Under conventional (CTu), plant nutrients were evenly distributed within upper layer chernozem, with highest values observed 10-40 cm depth range. conservation tillage, addition straw at rate 1.2 t/ha+N12+N78P68K68, content available hydrolyzable nitrogen, mobile phosphorus, exchangeable potassium was 0-20 layer: 192.30±22.44 192.51±22 mg/kg; 63.57±5.762 62.07±0.312 527.14±36.204 465.27±5.844 mg/kg for shallow (RTu) deep (DRTu) respectively. total 0-100 under DRTu followed by CTu. Chinese isohumisol, higher accumulation NH4 + -N NO3 0-10 range no-till management, while 20-40 range, plowing resulted greater nutrients. phosphorus did not notably change depth. application fertilisers, reaction value medium increased all treatments chernozem. calcium magnesium considerably fertilised inputs. findings indicate feasibility using crop residues nitrogen compensation cover conjunction mineral fertilizers, maintain fertility conditions limited manure utilisation