Perubahan pH dan Salinitas Tanah Pasir dan Tanah Liat Setelah Penambahan Pembenah Tanah Dari Bahan Dasar Tumbuhan Akuatik

Abstract

Soil acidity and salinity have important roles in determining soil fertility and plant productivity. Addition of soil conditioner to increase soil fertility and plant productivity should consider its acidity and salinity. In developing aquatic plants for soil conditioner, analyzes of their acidity and salinity property is necessary. The aim of this study is to analyze the acidity and salinity property from differnt sources of aquatic plants, i.e: fresh water, brackish water and marine plants. All collected aquatic plants were dried and mashed into powder. The resulted powder were then added by water to test their acidity and salinity using pH meter and refractometer. Results indicated that, fresh water aquatic plants have lower pH, whichi i 5.2, whereas from brackish and marine water have similar pH, i.e: 7. Soil conditioner from fresh water plant is suitable for base soil, while from brackish and marine plants are suitable for normal soil. However, Study from their salinity indicated that, their high salinity of brackish water plants (16 ppt) and marine water plants (43 ppt) need pretreatment by washing and diluting with fresh water.