Pengaruh Dimensi Saluran Kemalir terbadap Perubahan Sifat Kimia Tanah dan Pertumbuhan Kedelai di Tanah Sulfat Masam

Abstract

The effect of d~yenendt imentions on field ditch to soil chemical changes under soybean planting at acid sulphate soil was being studied at wet season 2001. The experiment used split plot design with 3 replications. Inter field ditch spacing as a main plot consisted of 3, 6 and 9 m. Field ditch depth as a sub plot consisted of 20 and 40 cm. The result showed that space offield dicth 7.5 m and 20 cm of deprh could improve soil chemical (pH, Al-dd, Fe-4 Sod, N, P), increased growth and yield of soybean.