METHOD TO GROW LETTUCE Russian patent published in 2012 - IPC A01G1/00 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture and crop sector. The method includes autumn main and spring presowing treatment of soil, presowing treatment of seeds, sowing high-quality seeds, taking care of crops and harvesting. Presowing treatment of seeds is carried out by a protective-stimulating complex (PSC) prepared by extraction of components from a flax boon first by 50% ethanol solution for 1 hour, the produced solution is filtered, and the boon is treated repeatedly by 0.1 M solution of potassium hydroxide for 1 hour with further neutralisation of sulphuric acid solution to the neutral reaction of the medium. Produced filtrates are combined at the ratio of 1:1 by volume, adding the solution of 3-phenyl-2-propen-1-ol in 50% ethanol in the amount of 1% by weight. At the same time concentration of a PSC reactant makes 20-30 g/l at the norm of consumption of 3-5 l/t of seeds. Crops are taken care of by means of treatment of plants with the protective-stimulating complex in the phase of 3-4 real leaves with reactant concentration making 50-150 g/l at the norm of the working fluid of 300-400 l/ha.

EFFECT: method makes it possible to increase lettuce capacity with improved quality of green mass.

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