CONVEYOR OF YEAR-ROUND FRESH CABBAGE PRODUCTION AND CONSUMPTION IN EASTERN SIBERIA

Abstract

By the researches conducted was established that, to provide the population of Eastern Siberia with fresh cabbage all year round in a balanced manner, it can be grown in plastic film-covered structures, owing to that it is ready for harvesting in May to June, or about 2 months earlier than in the open ground. It has been found that early cabbage, grown in plastic film heated greenhouses, is ready for harvesting since the second ten-day period of May; in plastic film greenhouses without heating since the first ten-day period of June; in film-covered hotbeds since the second ten-day period of June, or earlier than in the open ground by 39, 22 and 10 days, respectively. The optimum date for transplanting cabbage seedlings to plastic film heated greenhouses is the first ten-day period of April; to plastic film greenhouses without heating and film-covered hotbeds are the second and the third ten-day periods of April. The biochemical analyses carried out showed that the chemical composition and food value of cabbage heads did not worsen because of early planting dates, as compared with the later ones. A delay in transplanting seedlings becomes a cause of reduction in yields, receipts from sales of products, and crop profitability.