METHOD FOR CULTIVATION OF PERENNIAL MEADOW GRASS, MAINLY BECKMAN'S GRASS, ON ESTUARIES OF CASPIAN PLAIN Russian patent published in 2009 - IPC A01B79/02 

FIELD: agriculture.

SUBSTANCE: in method on prepared and dyked section with area of 20-30 ha, main treatment of soil is carried out without bed turnover at the depth of 0.12-0.15 m for watering with flood water. Milling of the upper layer performed for depth of 0.08 - 0.12 m to obtain agronomically precious soil fractions. Surface of section is smoothened, preplant compaction is carried out. Seeds of Beckman's grass are sown to the depth of 0.5 cm with norm of (0.5-1.0)×10⁶ pieces of germinable seeds per ha. Soil is smoothed, next year N_30-45 is introduced in kg d.v./ha in frozen-thawed soil. Watering with flooding is done in April with norm of 2500-3500 m³/ha. Herbicides are introduced for sowing of plants, weed plants are mown at the height of 0.10-0.15 m. At the 3^rd year of plants life, mineral fertilisers are introduced into frozen-thawed soil, N_30-45P_40-60K_40-60 in kg d.v./ha. After layer drawoff, additionally nitrogen fertilisers are introduced with dose of 45-60 kg d.v./ha or in phase of tillering - shooting. Flooding with flood water of site is done with norm of 3500-4000 m³/ha, blossom clusters of Beckman's grass are mown in phase of waxy ripeness at the cut height of 0.08-0.10 m, and seeds of Beckman's grass are removed at maximum possible height of cut. Prior to flooding of dyked site with flood water at the 3^rd year of plant life, across crops they cut vertical slots with width of 8-12 mm at the depth of 0.18-0.22 m with pitch of 0.4-0.7 m.

EFFECT: method provides for increased seed productivity of Beckman's grass seeds for 32-44%.

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