A method of predicting seed yield Alfalfa cultivation in irrigated agriculture

摘要

method u043fu0440u043eu0433u043du043eu0437u0438u0440u043eu0432u0430u043du0438u00a0 yields u0441u0435u043cu00a0u043d alfalfa in cultivation in u043eu0440u043eu0448u0430u0435u043cu043eu043c farming, including deep plowing with the introduction of phosphorous and potassium fertilizer and soil herbicides, spring the harrowing, sowing culture u0448u0438u0440u043eu043au043eu0440u00a0u0434u043du044bu043c method and irrigation in phase u0431u0443u0442u043eu043du0438u0437u0430u0446u0438u0438 with disposable cleansing one soil to 90 - 100% the lowest received to a depth of up to 1.3 - 1.5 m, with norm 1360 - 1500 m3 / ha.after u0446u0432u0435u0442u0435u043du0438u00a0 in soil layer of 0 to 55 cm lower humidity to 50 - 55%, in the layer 51 to 100 cm - 70 - 75% in the layer 101 - 150 cm to 75 - 80%, the lowest moisture holding capacity, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0, definition the temperature of the soil in the last decade u043bu00a0u044eu0442 u0441u0440u0435u0434u043du0435u0441u0443u0442u043eu0447u043du0443u044e u0430u043fu0440u0435u043bu00a0 and early u043cu0430u00a0, and projected yield in the second year of life u0443u0441u0442u0430u043du0430u0432u043bu0438u0432 u0441u0435u043cu00a0u043d plant u0430u044eu0442 of u0432u044bu0440u0430u0436u0435u043du0438u00a0:;y = k1xt + (k2A + k3d + k4P) / gs,;where y is the u043fu0440u043eu0433u043du043eu0437u0438u0440u0443u0435u043cu0430u00a0 yields in the second year of life u0441u0435u043cu00a0u043d alfalfa plants, kg / ha.;xt - u0441u0440u0435u0434u043du00a0u00a0 soil temperature in the last decade u0430u043fu0440u0435u043bu00a0 - the first decade u043cu0430u00a0 with;;and rate of seeding u0441u0435u043cu00a0u043d, g / ha.;d - the number of the u0434.u0432 fertilizer formulas, kg. / ha.;r - u043fu043eu043bu0438u0432u043du0430u00a0 rule during the period of vegetation, m3 / ha.;k1 is the factor takes into account the prospects of each semen quality of alfalfa in the formation and accumulation of grain mass, kg / (u0441u0433u0430);;k2 is the factor which u0432u043bu0438u00a0u043du0438u0435 temperature on formation of root system of plants in the first year of life, kg / (thousand hectares);;k3 rate, taking into account the reserves of mineral u043fu0438u0442u0430u043du0438u00a0 from predecessor in u043au043eu0440u043du0435u043eu0431u0438u0442u0430u0435u043cu043eu043c layer kg / (u0434.u0432.u043au0433u0433u0430);;k4 rate, a portion of the natural precipitation in the u0443u0440u043eu0436u0430u00a0 grain kg / (u043cu043cu0433u0430);;gs u0433u0438u0434u0440u043eu0442u0435u0445u043du0438u0447u0435u0441u043au0438u0439 factor according to the amount of u0442.u0433.u0441u0435u043bu00a0u043du0438u043du043eu0432u0430 erratic rainfall patterns and temperatures above + 10u0441 in period of life from the beginning until the u043fu0440u0435u043au0440u0430u0449u0435 seed plant u043du0438u00a0 vegetations.