Akademik Veri Yönetim Sistemi
FRESENIUS ENVIRONMENTAL BULLETIN, cilt.28, sa.5/2019, ss.3876-3885, 2019 (SCI-Expanded)
In this study, the amount of nitrate leached
from the soil and its effects on yield and quality of
cucumber plant grown under greenhouse conditions
were determined as a result of different fertigation
strategies which was formed by changing the application time of the mixture of fertilizer solution
during the irrigation cycle. For this purpose, five
different fertigation strategies were applied, i.e.
feeding of fertilizer solution during the whole irrigation period (F1), feeding of fertilizer solution
during the first half of irrigation period (F2), feeding of fertilizer solution during the second half of
irrigation period (F3), feeding of fertilizer solution
between 1/4'th and 3/4'th irrigation period (F4) and
injection of fertilizer solution immediately upon
start of irrigation (F5) The highest and least yield
was obtained in F1 (16.66 tons da-1) and F3 (15.05
tons da-1) fertigation strategies respectively. It was
determined that fertigation strategies did not affect
statistically the yield, fruit length, fruit diameter,
plant height and stem diameter. On the other hand,
it was found that the effect of fertigation strategies
on nitrate-nitrogen (NO3-N) leaching was statistically significant. The highest NO3-N leaching was
observed in F2 and the least in F4 fertigation strategy. It was concluded that the best fertigation strategy to prevent the pollution of groundwater by minimizing NO3-N leaching, the most appropriate strategy is F4, i.e. feeding of fertilizer solution between
1/4'th and 3/4'th irrigation period.