EFFECT OF LIME APPLICATION ON SOIL PROPERTIES AND SOYBEAN YIELD ON TIDAL LAND
Abstract: The problems of
soybean cultivation on tidal land are low in soil fertility, aluminum (Al)
toxicity and poor availability of macro nutrients. Soil acidity and Al toxicity
are often fixed by liming. The research aimed to determine the calculation
method of lime requirement and its application method for soybean on tidal
land. The research was conducted on tidal land in South Kalimantan, Indonesia.
Treatment consisted of two factors and arranged in randomize complete block
design, replicated three times. The first factor was the method of lime rate
calculation: (1) no liming,(2) liming based on10% of Al saturation, (3) liming
based on 20% of Al saturation, (4) liming based on 30% of Al saturation, (5)
liming based on 0.5 x exchangeable Al, and (6) liming based on 1 x exchangeable
Al. The second factor was the method of application: (1) surface,and (2) mixed
within 20 cm soil depth. The results showed that liming by mixing dolomite with
soil within 20 cm depth resulted in 8% higher plant height compared to that applied
on the soil surface. The highest yield
was obtained when liming at rate equivalent to 10% of Al saturation was mixed
with soil within 20 cm depth.
Author: Andy Wijanarko,
Abdullah Taufiq
Journal Code: jppertaniangg160016
