Triple super phosphate application on irrigated lowland rice in alluvial soil in South Sulawesi
1992
Momuat, E.O. | Fadhly, A.F. | Rauf, M. | Djamaluddin | Subandi (Balai Penelitian Tanaman Pangan, Maros (Indonesia))
The experiments using several triple super phosphate (TSP) rates on alluvial irrigated lowland in South Sulawesi were conducted to evaluate the response of rice crop to TSP application, so that recommendation of rational TSP rate application could be made. Five rates of TSP application : 0, 50, 100, 150, and 200 kg/ha, were replicated three times, using randomized complete block design, plot size of each treatment was 10 x 8 m. The experiments were located at 6 location in 5 districts, namely : Sereang and Otting village in Sidrap district, Allepolea village in Maros district, Panrannuangku village in Takalar district, Majelling village in Bulukumba district, and at Pantoluang village in Luwu district. The field experiments were conducted during 1989/90. The result of the experiments showed that P content of soil at 0-15 cm layer from 5 locations were in medium to very high category by Olsen method, i.e. 13.52 up to 45.33 ppm, but in Allepolea village was in low category i.e. 9.11 ppm. Using several TSP rates at Sereang, Otting, Panrannuangku, Majelling and Pantoulang application of TSP up to 200 kg/ha did not increase rice yield significantly, however at Allepolea village application of 200 kg TSP/ha increased the rice yield 1.67 t/ha, from 3.39 to 5.06 t/ha. Based on soil analysis and rice yield obtained, irrigated lowland rice in alluvial soil of South Sulawesi did not respond to TSP application.
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