KARAKTERISASI SIFAT FISIS TANAH SAWAH KECAMATAN RIMBA MELINTANG MENGGUNAKAN GELOMBANG ULTRASONIK

Abstract

The determination of the physical properties of paddy soil is reported in rice field Subdistrict of Rimba Melintang District of Rokan Hilir using an experimental method with a Sowan ( Sonic Wave Analyzer ). Samples are taken from the five villages of the location fields in the Subdistrict of Rimba Melintang i.e Mukti Jaya, Lenggadai Hilir, Lenggadai Hulu, Teluk Pulau Hulu and Teluk Pulau Hilir. The samples were made of cylindrical form with a length of 10 cm and a diameter of 7.4 cm. The results shows that samples with high elasticity are found in the village of Lenggadai Hilir which have elasticity of 49.89x107N/m2 with poisson ratio of 0.28, moisture content of 14.28% and pH 5.86. Whereas samples with low elasticity are found in the village of Mukti Jaya have elasticity of 25.87x107N/m2 with poisson ratio of 0.22, moisture content of 25.71% and pH 6.49. The results of this research also show that the samples of the rice field soil have a small elasticity and a small value of poisson ratio. It also has a high value of moisture content and pH. Whereas the samples of the soil rice field which have a high elasticity have a high of poisson ratio and both value of water content and pH are small. A small value of elasticity and the poisson ratio of the sample are found in a village Mukti Jaya describe that the better soil fertility levels are supported by a high value of moisture content and pH as well.