ANALISIS LAJU PENCUCIAN TANAH SALIN DENGAN MENGGUNAKAN DRAINASE BAWAH PERMUKAAN
ABSTRACT: Leaching process
with subsurface drainage is needed to solve the salinity problem. This research
was conducted to determine the leaching rate of saline soil by contaminants
flow in the soil experiments, and determine the accuracy of ILRI’s formula
(1994) that used in the calculation. Data was collected in some experiments,
the experimental of soil physical properties, salt contamination, and soil
leaching. The experiments showed the different leaching time to reduce
concentration to the desired level, 0.07, 0.13, and 0.08 days, respectively for
the percolation rate 1035.73, 1614.12, and 1888.52 mm/day. It is influenced by
concentration of dissolved salts (Ct), rate of percolation (q), water storage
in field capacity (Wfc), and permeability (K). However there is has a
differentation between an experiment and calculating result, so for this
condition needs a development of formula that issued by ILRI (1994) with adding
a correction coefficient for Wfc value, 0.076, 0.078, and 0.042 for experiments
1, 2, and 3, so the calculation results may approach by the real condition.
Penulis: Nibras Nasyirah, Dedi
Kusnadi Kalsim, Satyanto Krido Saptomo
Kode Jurnal: jppertaniandd150365