Use of a mathematic modeling methods while evaluating fertilizer systems and optimization of table carrot mineral feeding | Применение методов математического моделирования при оценки систем удобрения и оптимизации минерального питания моркови столовой
2012
Stepuro, M.F., National Academy of Sciences, Minsk (Belarus). Institute for Vegetable Growing
In the conditions of the Republic of Belarus there were presented results of nonlinear regression analysis of experimental data, there were built models of a pair dependence of yielding capacity of carrot (Daucus carota) on the dose of nitrogen, phosphate and potash fertilizers. The studied dependence was very precisely described by the equations of a parabola of the second degree. By resolving these equations there were defined optimal doses of nitrogen, phosphate and potash fertilizers. In the obtained doses there was obtained maximum yield of carrot varieties cultivated on so-podzolic soil with irrigation and without applying it. Research results showed that the presented mathematical models could effectively describe the dependence of yielding capacity of carrot on dose and combinations of different fertilizers under or without irrigation conditions on two types of sod-podzolic soils. The developed models could be used for the forecasting the efficiency of mineral fertilizers in course of calculation of the optimal fertilizer systems in the specialized crop rotations.
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