V.N. Sarykin, V.A. Dammer
Center of Agrochemical Service «Altaiskiy», Nauchny gorodok, 33, Barnaul, 656910, Russian Federation
Summary. The article presents the results of long-term monitoring of soil fertility of Altai Krai, carried out by the agrochemical service for fifty years. Weighted average humus content of 5 completed cycles of the survey is in the range of 4.6-4.7%. In the dynamics an annual growth of areas of acid soils is registered since 1965 to 2014. In the first cycle of the survey, they were 8.3%; in the fifth cycle they occupied 20.8%. Without liming 242,800 ha of arable lands (4.1%) with pH less than 5.0 are unsuitable for crop cultivation. The largest quantity of acid soils located in the foothills of the Altai (Prisalairskaya and Bijsko-Chumyshskaya zones). Throughout the period of the survey the dynamics of the content of mobile phosphorus varied wave-like. The minimal values of this index were registered in 1972-1986 (137 mg/kg), the maximal ones–in 1987-2001 (148 mg/kg). The weighted average content of exchangeable potassium in the soil of the region has hardly changed during the research and was equal to 207-222 mg/kg. The soils of the region are characterized by the stable content of microelements, nonhazardous concentrations of heavy metals and calm radiological background that allows producing of environmentally friendly crop production.
Keywords: fertility, humus, phosphorus, potassium, trace minerals, soil acidity.
Author Details: V.N. Saprykin, director (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); V.A. Dammer, head of divison.
For citation: Saprykin V.N., Dammer V.A. Dynamics of Fertility of Arable Soils of Altai Krai. Dostizheniya nauki i tekhniki APK. 2015. V.29. No11. Pp. 8-10 (In Russ.)