FIELD: agriculture.
SUBSTANCE: invention relates to the field of agriculture, in particular to rice growing. Method comprises autumn peeling of precursor culture stems at depth of 0.06–0.10 m, application of preset doses of phosphorus, potassium to autumn plowing and up to 40–60 % of calculated dose of nitrogen, under-winter ploughing of soil, spring cover harrowing of soil, presowing cultivation of soil at depth of 0.06–0.08 m, treatment of seeds with biopreparation, continuous sowing of culture at depth of 0.06–0.08 m with heating of said layer to 12–14 °C, post-sowing soil packing and application of soil herbicide, care for culture during vegetation period, containing irrigation with maintenance of required level of soil moisture, introduction of herbicides, biopreparations and crop removal. Under-winter ploughing of soil is carried out at different depths with alternation by years – in the first year at depth of 0.20–0.24 m with formation rotation at the same depth, and in the second year at a depth below the plow foot by 0.08–0.10 m and formation rotation by 0.20–0.24 m. Irrigation is carried out periodically by method of low-volume surface sprinkling with placement of sprinkler stands at height of 0.8–1.0 m from day surface and 25–35 % crossing of rain torches with maintenance of differentiated water regime of soil at moisture content of 70–80–70 % of minimum moisture-holding capacity (MMHC) in layer 0.4 and 0.6 m. At the same time from soil till tillage beginning soil moisture content is maintained at least of 70 % MMHC in layer of 0.4 m, in tillering, tubing, brooming and milk ripening the preliminarily soil moisture content is increased to 80 % MMHC. At that, in tillering phase in layer 0.4 m, and from tubing phase in layer of 0.6 m, in phase from wax to complete ripeness of grain, pre-limb moisture in layer of 0.6 m is reduced to 70 % of MMHC, wherein value of total water consumption of culture determined by formula E=618⋅Y+2,580, where E is total water consumption, m3/ha; Y – planned crop capacity, t/ha.
EFFECT: method ensures increase of rice yield capacity on irrigated lands of the Volga-Don interfluve.
1 cl, 1 tbl
