| dc.description.abstract | Saturated soil culture (SSC) is a cultivation technology mantaining water depth constanly to make soil layer in the saturated condition. This paper resumes of two experiments to evaluate the effect of water depth and bed width, and leaching time and varieties of soybean cultivated under SSC on tidal swamp. The research was conducted at Banyu Urip, Banyuasin, South Sumatra from April to August 2010. In the first experiment, water depth in the furrow irrigation as main-plot consisted of 10 and 20 cm under soil surface (USS) and bed widths as sub-plot consisted of 2, 4, 6 and 8 m. The results showed that the highest grain yield was obtained on 20 cm USS water depth and bed width 2 m (4.15 ton/ha), it was significantly different from those at bed width 4 m (2.59 ton/ha), 6 m (1.84 ton/ha) and 8 m (1.74 ton/ha). The grain yield on water depth 10 cm USS and bed width 2 m obtained was 3.43 ton/ha, it was significantly different from those at bed width 4 m (2.46 ton/ha), 6 m (1.75 ton/ha) and 8 m (1.68 ton/ha). In the second experiment, leaching time as main-plot consisted of without leaching, every 2, 4 and 6 weeks, and soybean variety as sub-plot consisted of Tanggamus, Slamet, Willis and Anjasmoro. The results showed that interaction between leaching time and varieties did not significally affect grain yield, varieties responded leaching time differently. The highest grain yield was obtained by Anjasmoro variety with leaching time every 2 weeks (4.06 ton/ha) but it was not significally different from those with leaching time every 4 weeks (3.99 ton/ha) and every 6 weeks (3.93 ton/ha). From these experiments, water depth 20 cm USS and bed width 2 m may be recommended for SSC soybean cultivation on tidal swamp, and presumably, leacing time every six weeks will gain more effective economically and technically. | en |
