| dc.description.abstract | DONY ROMANOSA : The Study of Physical And Chemical Properties of Soil
Ultisol The Rubber Land has Resulted In Some Type of Vegetation that Grows In
PTPN III Sarang Giting, supervised by SUMONO and ACHWIL PUTRA MUNIR
Physical and chemical soil characteritics are important factors for the
growth of rubber plant. This research was aimed to study physical and chemical
soil characteritics of the rubber plant with vegetations of harupat spikes, grass,
taro and no vegetation in PTP. Nusantara III Sarang Giting. The observed
parameters were soil texture, porosity, water content of field capasity, soil
permeability, total Nitrogen, available Phospate, and land Potassium exchange.
The results showed that the soil type was ultisol, with sandy loam texture and pH of
4,55-4,69 (acid). The vegetation soil had porosity of 55,42-56,36 % at a depth of 5
cm and 54,86-55,14 % at a depth of 25 cm. The water content of field capacity was
ranged from 37,9-49,9 % at a depth of 5 cm and 35,1-47,5 % at a depth of 25 cm.
Permeability was ranged from 3,40-4,72 cm/h. Total N was 0,07-0,11 %. P
available was ranged from 15,10-17,70 ppm. K exchange of land was ranged from
0,57-0,76 me/100g. The soil with no vegetation had porosity of 55,42 % at a depth
of 5 cm and 54,86 % at a depth of 25 cm. The water content of field capacity was
42,8 % at a depth of 5 cm and 42,2 % at a depth of 25 cm. Permeability was 4,72
cm/h. Total N was 0,10 %. P available was 17,12 ppm. K exchange of land was
0,67 me/100g. | en_US |
