Development of farming systems in the Prienisey Siberia

The paper presents the results of research conducted to assess the development of farming systems in the Prienisei Siberia over a long period of time as a basis for identifying factors determining crop productivity, and as an information basis for forecasting crop yields by 2030. The work provides information covering more than two hundred years of land practice in the Prienisei Siberia. It was found that in all the periods of agricultural production, each of which corresponds to a certain farming system, the trend of yield change was positive. Each successive period was shorter than the previous one, with yields increasing significantly. The period of extensive technologies application in farming lasted more than 140 years. At this time, yields increased by 0.0018 t/ha per year. The period of use of the ordinal (low-intensity) farming system lasted approximately 50 years. The yields then increased by 0.0204 t/ha per year. During the period of intensification of the farming system, which took about 30 years, the yields increased by 0.0212 t/ha per year and reached about 2.1 t/ha by the end of the period. The period of formation of high-intensity farming system is the shortest, characterized by the highest productivity growth rates – 0.0639 t/ha per year. If this trend is maintained, the long-term average yield of 3.0–3.5 t/ha will be reached approximately by 2030. For each soil-climatic zone it is advisable to have its own, original farming system, developed taking into account soil-agrochemical properties, landscape and climatic peculiarities, characterized by more in-depth differentiation of individual working area. It should present digital technologies using modern electronic means of informatization, geoinformation systems, remote methods and means of technological processes control, aerial and space methods of agro-ecosystems diagnostics.

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