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The experience of implementation of GIS and web technologies for regional agriculture of the Krasnoyarsk territory is considered. The experimental agricultural enterprise “Minino”, located near the city of Krasnoyarsk, was chosen as a pilot project. For this agricultural enterprise, the comprehensive digital model using geographic information systems, remote sensing and web mapping data processing techniques and software is created. A geospatial database, which contains relevant and archival information about agricultural fields, varieties, crops, soil, particle size distribution, soil-forming rocks, terrain features, has been developed. A series of technological digital maps and cartograms have been created in which information on crop rotations and cultivated crops is concentrated. Archives of available multispectral satellite data of high spatial resolution on the considered territory are analyzed. As a result, a multi-layer electronic map of the agricultural enterprise was created, which contains all available information and can be used for modeling and forecasting crop yields, agricultural planning. The developed methods and software and technological solutions can become a methodological basis for a new generation of information and analytical systems and technologies to support management decisions in the agricultural sector.

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The presence of statistical relationships between productivity and soil properties allows one to assess soil fertility on a mathematical and statistical basis. To do this, it is necessary to substantiate a set of estimated soil properties and mathematically describe their cumulative effect on the yield. Known traditional methods of establishing relationships between soil properties and yield are time-consuming and expensive. It is practically impossible to cover large cultivated areas with these studies. Such work can be effectively performed using the means and methods of remote sensing, using imagery from satellites and unmanned aerial vehicles, which are equipped with multispectral cameras. Modern technologies provide the ability to survey a large area of the territory, uniform rules for recording the spectral characteristics of vegetation, determining the associated vegetation indices.

On the dark grey forest soils of the taiga zone of the Yenisei Siberia, the structure of the weed component of agrophytocenoses of perennial grasses is dominated by perennial segetal and segetal-ruderal weed species, the proportion of which is 60-70%. Using Magnum herbicides in timothy grass Kazachinskaya 2 and Lontrel-300 in the crops of meadow fescue grass Kazachinskaya 182 allowed for reducing the contamination of fields with perennial weeds from medium to weak. Herbicides reduce 94% the weight of weeds from 1 ha while increasing the biomass of timothy grass by 30%. Against the background of fertilizers, the weight of weeds decreased by 85.3%, and the importance of timothy grass increased by 118%. Mineral fertilizers increase the yield of timothy seeds for three years of use from 3.64 c / ha to 5.31-8.62 c / ha and oatmeal seeds - from 3.22 c/ ha to 4.97-6.91 c /ha. The complete collection of grass seeds was obtained on variants N60P60K60 with the leading share of the influence of nitrogen fertilizers, the introduction of which increased the yield of timothy seeds by 125% and fescue by 87%. The introduction of potash fertilizers caused an increase in the output of timothy grass of the 2 and 3 g. p. by 160 and 190%, respectively, and fescue of the 2 g. p. by 160%. The sowing qualities of seeds characterized by germination energy, germination and weight of 1000 seeds of timothy increased under the influence of phosphorus and potash fertilizers.