Abstract
Ameliorant, one of innovative technology, is actually able to accelerate the weathering of rice straw and grass. Other than that, it can also improve soil structure and increase soil pH. This study aims to analyze the added value of using innovative technology in reducing rice yield gaps in tidal land. It involved the Banjar Harum I and Banjar Sari Farmer Groups in Pinang Banjar Village, Sungai Lilin District, Musi Banyuasin, South Sumatra during the dry season of 2020 in an area of 45 ha. The ameliorant used was 5 liter/ha of bio-decomposer and 1 t/ha lime (dolomite). The results showed that the application of bio-decomposer and dolomite produced 3,617 and 3,283 kg/ha Harvested Dry Grain (HDG) respectively of the farmer groups as compared to 1,700 kg/ha of local farmers using no ameliorant. The added value of the innovative technology use is IDR 9,126,000 and IDR 7,408,440/ha, with MBCR of 2.15 and 1.25, respectively. In the wet season of 2020, the use of bio-decomposers and dolomite can reduce yield gaps by 17.74 and 14.38%, respectively, with the potential productivity of Inpari 42.
Highlights
More than half of the world's population consumes rice as a staple food [1;2]
The development of tidal swamp land is a strategic step taken by the government considering its enormous potential, but it has not been utilized optimally
Tidal swamp area has a significant contribution to food production since, of the 774,502 ha of rice fields in South Sumatra, 273,919 ha is tidal swamp land, which ranks second after non-tidal rice fields
Summary
More than half of the world's population consumes rice as a staple food [1;2]. The increasing of rice production will not be sufficient if only rely on irrigation land, new land clearing on suboptimal land will be required. The development of tidal swamp land is a strategic step taken by the government considering its enormous potential, but it has not been utilized optimally. Reclamation of tidal swamp land is carried out to produce food, especially rice by utilizing its potential optimally, improving water management, and revitalizing existing infrastructure [3]. Tidal swamp area has a significant contribution to food production since, of the 774,502 ha of rice fields in South Sumatra, 273,919 ha is tidal swamp land, which ranks second after non-tidal rice fields
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