The principal possibility to cultivate radish in open ground in autumn is tested. Hydrothermal nanosilica applied as topdressing have been used to increase plant adaptability to low positive temperature. Small-scale trials were carried out in the Moscow region in 2017. Marketable radish yield of 1.2 kg/m2 (‘Mercado’) or 2.5 kg/m2 (‘Carmen’) is obtained.

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