Yüzeyaltı damla sulama yöntemi ile sulanan kuru fasulyede farklı su uygulamalarının değerlendirilmesi
Özet
This study was aimed to determine the effects of different water applications on water productivity (WP), irrigation water productivity (WPirg), the economic productivity of water (EWP), yield, quality parameters, and technological values in dry beans by using a subsurface drip irrigation system. The research was carried out at the Sugar Institute in 2018 and 2019 years. The experiment was set up in a randomized block design with 3 replications. In irrigation applications, reference crop evapotranspiration was calculated using the FAO Penman - Monteith equation and converted to bean crop evapotranspiration (ETc) by correcting it with the crop coefficient. The cumulative ETc values did not exceed 20% (±5) of the available water capacity at 60 cm soil depth and different levels of cumulative ETc were applied as irrigation water. In the research, irrigation treatments were formed as S100: 100% ETc, S75: 75% ETc, S50: 50% ETc and S25: 25% ETc. The effect of different irrigation level applications on bean yield-quality and technological values in the subsurface drip irrigation system was found statistically significant (p<0.05). According to the years, irrigation water amounts were varied between 94 - 314 mm in 2019 and 96 - 307 mm in 2018. Actual evapotranspiration (ETa) was calculated as 367 - 496 mm in 2018 and 306 - 447 mm in 2019. According to irrigation levels, the average dry bean yields in 2018 and 2019 were found as 151, 142, 115, and 95 kg da-1, respectively. The yield response factor (ky) value was found as 1.16. According to irrigation treatments, two-years avarage WP values were determined as 0.33, 0.34, 0.32 and 0.29 kg m-3, WPirg 0.49, 0.60 0.69 and 1.00 kg m-3, EWP 0.7, 0.7 0.1 and -0.98 TL m-3 respectively.