Open AccessScience-based regimes of corn irrigation for grain in the reclaimed lands of Rostov region
Author(s) -
Irina Vladimirovna Gurina,
Nikolay V. Mikheev,
A. I. Shcherenko
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/341/1/012108
Subject(s) - irrigation , environmental science , water balance , dry season , growing season , precipitation , water consumption , moisture , agronomy , hydrology (agriculture) , geography , water resource management , biology , geology , geotechnical engineering , cartography , meteorology
The purpose of the studies conducted in 2013-2015 was to develop scientifically grounded regimes of corn irrigation for grain during sprinkler irrigation with the use of wide-capacity sprinklers. Field research was carried out at the pilot site in Svetlagorskoye, Bagaevsky District, Rostov Region. As a result, it was established that during the dry growing season (at HTC = 0.59) to maintain the specified thresholds of soil moisture 7 growing season irrigations by irrigation rates from 240 to 500 m 3 /ha were carried out. The irrigation rate was 3040 m 3 /ha. At HTC = 0.50, 6 vegetative waterings were carried out according to the norms from 300 to 500 m3/ha. The irrigation rate was 2400 m 3 /ha. At HTC = 0.58 8 vegetation irrigation with irrigation rates from 350 to 450 m 3 /ha was carried out, irrigation rate was 3400 m 3 /ha. B our studies also determined the total water consumption by the water balance method. The analysis of the total water consumption structure allowed establishing that the main share in the structure (up to 70%) was the irrigation rate, then precipitation and productive moisture reserves used by plants.