RDE Abstract of Completed Research
Soil Fertility Improvement / Liming
- Liming of Angeles loamy sand
planted to different HYVs of sugarcane (2003)
- Oscar Quilloy and
Benjamin Manlapaz
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- Varying rates of lime were applied in Angeles
loamy sand and different sugarcane high yielding varieties were
planted to determine the effects of liming on sugarcane yields
and soil pH.
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- Growth and yield parameters of sugarcane
did not significantly differ among the rates of lime application
in the plant and first ratoon canes. Significant differences
on plant height, tiller count and yields were observed in the
second ratoon.
-
- Yield parameters among the different test
varieties varied significantly in the plant cane and the succeeding
ratoon crops. Sugar rendement was comparable among the rates
of lime but Phil 8715 had the lowest Lkg/TC. Cane tonnage at
the 6 tons/ha liming rate was higher in all crop classes. Phil
8715 produced higher tonnage in the plant cane and second ratoon
while Phil 90-0345 produced higher TC/ha in the first ratoon.
The highest sugar yield in all crop classes was obtained at 6
tons/ha rate of liming.
-
- Soil analysis taken after harvest showed
that applying 2 to 6 tons/ha of agricultural lime improved soil
pH.
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- Lime requirement of acidic
soil. (2001)
- Oscar Quilloy and
Benjamin Manlapaz
-
- Six (6) tons/ha of lime incorporated in acidic
Guadalupe clayloam in Batangas improved the growth of Phil 8715
and increased the cane and sugar yields. Applying 4 tons/ha of
lime gave higher cane tonnage yield in the ratoon crop. Application
rates from 2 to 6 tons/ha did not increase the sucrose content
and sugar yield of Phil 8715 in the succeeding ratoon. The sugar
yield of Phil 7544 in acidic Angeles sandyloam in Pampanga applied
with 6 tons/ha of lime was significantly increased.
