ARIS TOHARISMAN, MUHAMAD MULYADI and ABDUL RASJID
Indonesian Sugar Research Institute
atoharis@yahoo.com
Indonesian Sugar Research Institute
atoharis@yahoo.com
ABSTRACT
SILICON (Si) is an important beneficial element for sugarcane and is absorbed by sugarcane,
more than any other mineral nutrient.
Si is known to promote sugarcane yield, enhance resistance to biotic and abiotic
stresses, improve leaf and stalk erectness, and increase P availability.
A new Si fertiliser namely SiPlusHS was formulated from sugar mill boiler ash,
furnace slag, rock phosphate, zeolite, oxalic acid and humic substance.
It formed granules of 3–5 mm in diameter and contained 8–10% soluble Si, 10–12%
soluble phosphate and 3–5% humic substance.
The effectiveness of this fertiliser was tested under field conditions on irrigated and
non-irrigated sugarcane areas, covering areas of 1 and 2 ha, respectively.
The fertiliser was applied at the rate of 0, 250 and 500 kg/ha. Results showed that
application of 250 kg/ha SiPlusHS could increase cane yield from 2 to 52% and sugar yield
by as much as 15–58%.
There were no significant differences between applications of 250 kg/ha and
500 kg/ha SiPlusHS. In some areas, SiPlusHS could significantly decrease stem borer attacks.
Recently, this new silicon fertiliser has been tested on about 1000 ha in various
regions in Indonesia.
more than any other mineral nutrient.
Si is known to promote sugarcane yield, enhance resistance to biotic and abiotic
stresses, improve leaf and stalk erectness, and increase P availability.
A new Si fertiliser namely SiPlusHS was formulated from sugar mill boiler ash,
furnace slag, rock phosphate, zeolite, oxalic acid and humic substance.
It formed granules of 3–5 mm in diameter and contained 8–10% soluble Si, 10–12%
soluble phosphate and 3–5% humic substance.
The effectiveness of this fertiliser was tested under field conditions on irrigated and
non-irrigated sugarcane areas, covering areas of 1 and 2 ha, respectively.
The fertiliser was applied at the rate of 0, 250 and 500 kg/ha. Results showed that
application of 250 kg/ha SiPlusHS could increase cane yield from 2 to 52% and sugar yield
by as much as 15–58%.
There were no significant differences between applications of 250 kg/ha and
500 kg/ha SiPlusHS. In some areas, SiPlusHS could significantly decrease stem borer attacks.
Recently, this new silicon fertiliser has been tested on about 1000 ha in various
regions in Indonesia.
KEYWORDS: Silicon Fertiliser, Boiler Ash, Furnace Slag,
Humic Substance, Sugarcane Productivity.
Humic Substance, Sugarcane Productivity.
Proc. Int. Soc. Sugar Cane Technol., Vol. 27, 2010
No comments:
Post a Comment