EFFECT OF IRRIGATION REGIMES ON GREEN MASS PRODUCTIVITY OF MAIZE VARIETIES

This article presents the results of research on the effect of irrigation methods on the yield of green mass of maize varieties "Uzbekistan-601 ESV", "Karasuv-350 AMV" and "Uzbekistan-300 MV" grown as main and repeated crops in the conditions of moderately saline, meadow-alluvial soils of the Republic of Karakalpakstan. According to the results of the research, in the conditions of moderately saline, meadow-alluvial soils of the southern Aral Sea region of the Republic of Karakalpakstan, the variety of maize "Uzbekistan-300 MV" was grown with a soil moisture of 70-70-60% before irrigation, in the main crop in the 1-2-0 irrigation system, repeated crop as 0-1-0 system irrigation was found to be acceptable. Then, the highest green mass was 93,9 c/ha in the average 3 years (after grain harvesting) when grown as a main crop, and 36,0 c/ha in repeated crop.

Keywords: meadow-alluvial soils, irrigation methods, maize varieties, main crop, repeated crop, green mass, productivity