2024 Volume 34 Issue S Pages 33-37
Irrigation is essential for agricultural production. However, salinization induced by irrigation is a serious problem in dry land. Indo-Gangetic plains (IGP) is one of the remarkable areas where this kind of salinization. In this area, Border irrigation (BI) is a widely used, but high salinized water and sloppy irrigation management has caused severe salinization. Therefore, water-saving is necessary for decrease salt input to farmland. Permanent skip furrow irrigation (PSFI) is an easy and low-cost water-saving method. PSFI obtain water-saving effect by irrigate every other furrow. The objective of this study is to investigate the effects of Every furrow irrigation (EFI) and PSFI on the soil moisture and salinity with lysimeter (2*2 m) experiment. Pearl millet and Mustard were cultivated in the lysimeter from 2018 to 2021, BI (Control), EFI, and PSFI were applied in Mustard cultivation. The amount of irrigation water in one time was, 50, 45 and 23 mm respectively. The results showed that average water contents of EFI and PSFI decreased by 20 and 30% respectively compared with BI. On the other hand, average soil EC1:2 of EFI increased 19% compared with BI, whereas no difference was observed between PSFI and BI. The yield of Pearl millet tended to decrease by 4-24% using EFI and PSFI compared to BI. In contrast, the yield of Mustard tended to increase 26-64% in 2019 and 2020. EFI achieve 10% water-saving, but it may adversely affect crops productivity due to higher salt accumulation compare with BI.
