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2018, N 4 (34) |
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COMPUTER SCIENCE, COMPUTER FACILITIES AND MANAGEMENT
(IN AGRICULTURE)
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Tingayev A., Davydov A. |
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Modeling of stocks of a humus in the soil at irrigation by piggery effluent |
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For assessment of influence of irrigation by piggery effluent drains on accumulation not of gumifitsirovanny organic substance of piggery effluent drains and stocks of a humus in the soil it is necessary to use mathematical modeling. The mathematical model which reflects dynamics of a stock of a humus due to hymification of organic substance of piggery effluent drains and the vegetable remains has been developed and also considers losses of a humus. The adequacy of model was checked on the data obtained as a result of waterings of a svinostokama of pig factory farm Antipinsky in a meadow and steppe zone of Togulsky district of Altai Krai. Piggery effluent drains average degree of a mineralization with concentration of the dissolved substances of 4006 mg/l, reaction subacidic рН 6,6, and the maintenance of NPK 744, 532, 843 of mg/l. The irrigational coefficient on Steblera 6,1 shows that drains are quite suitable for irrigation. At irrigation by piggery effluent drains occurs accumulation of NPK and increase in content of organic substance in the soil.
The mathematical model has shown an approximation accuracy appreciation. The error of approximation makes 6%. The software has been developed for the forecast of irrigation by piggery effluent drains. The forecast of irrigation by piggery effluent drains annually within 20 years at norm of drains of 300 m3/hectare has shown increase in a stock of a humus by 1,21 times from 146,858 t/hectare to 177,87 t/hectare, and the content not of gumifitsirovanny organic substance in the soil within seven years will increase to 1,19 t/hectare, then contents is stabilized. The made forecast for 20 years at irrigation by piggery effluent drains at norm of 300 m3/hectare has shown insignificant accumulation not of gumifitsirovanny organic substance of piggery effluent drains in the soil.
Keywords: G. ZAVODOUKOVSK, WASTE WATER, PURIFICATION CONSERVATION, ENVIRONMENTAL PROTECTION, WATER-RECEIVER OF WASTEWATER, RIVER UK |