STATUS UNSUR-UNSUR BASA (Ca2+ , Mg2+, K+, and Na+) DI LAHAN KERING MADURA
Abstrak: Objective of this
research was to examine the content of
base cations (Ca2+ , Mg2+, K+, and Na+) in soil of dry land in Madura.
The methode applied was survei research in four regencys. At every location 8
to 9 composite soil samples from 0 to 20 cm depth were taken. These samples
were then air dried and sieved to pass 2mm diameter for analysis of the cation content by means
of flamefotometer for K+, and Na+ and
tetration method for Ca2+ and Mg2+. Data were then analyzed based on the
standart content of cations in soil
from Pusat Penelitian Tanah (1993).
Result showed that base saturation was high to very high class meaning the soil
was rich in base cations, however the Ca/Mg/K ration was not ideal. Exchangeable Ca was low to very high;
exchangeble Mg was low to high. While exchangable monovalent cations were evry
low to low. The low exchangable K was diadvantage as this cation was needed by
plant in great number. Therefore, the main consideration in plant production
was to keep the K concentration at certain level that was high enough to
fullfill the plant need through fertilizer input. While low exchangable Na was
advantages as this cation could create problem to disturb the physiology
process in the plant and to reduce soil agregation when its concentration in
soil was high.
Penulis: Slamet Supriyadi
Kode Jurnal: jppertaniandd090067
