Abstract
In 2017, Indonesian Legumes and Tuber Crops Research Institute (Iletri) introduced a package of soybean cultivation technology in rainfed area with non-acidic soil in Maros, South Sulawesi named Biodetas which was able to produce the yield of 2.1-3.2 t/ha. In 2018, Biodetas was developed to East Lampung, Lampung which has specific rainfed area with acidic soil. Therefore, the technology has been modified by the addition of dolomite and named as “specific Biodetas”. To finding out the results of “specific Biodetas” application in improving soybean productivity and farmers’ income, there are three treatments involved: P1 = Doing tillage and planting with manual dibbling tool, P2 = Doing tillage and planting with simple planting tool, and P3 = No tillage and planting with simple planting tool. P2 and P3 were specific Biodetas adjusting to the existing farmers’ cultivation. The yield of specific Biodetas were 1.362-1.727 t/ha. P3 produced the highest yield and the highest total benefit of IDR 6,670,500/ha. The specific Biodetas adjusting to the existing farmers’ cultivation could provide additional benefit of IDR 640,000 for P2 and IDR 3,706,000 for P3. MBCR values of P2 and P3 were 3.64 and 4.92, respectively, reflected that the technologies were feasible to be applied.
Highlights
The low national soybean production in meeting domestic market demand requires various efforts to minimize the gap between national production and import
The technological feasibility for changing the specific Biodetas introduced by Indonesian Legumes and Tuber Crops Research Institute (Iletri) to the specific Biodetas adjusting to the existing farmers' soybean cultivation measured by gains and losses method and partial analysis of technological changing feasibility employing marginal benefit cost ratio (MBCR) approach with the following equation [14]: MMMMBBBBBBBBMMMM
The soybean yield of the specific Biodetas package in acidic soil of Lampung was lower than the recommended Biodetas package in non-acidic soil of South Sulawesi
Summary
The low national soybean production in meeting domestic market demand requires various efforts to minimize the gap between national production and import. The main problems of crops planting in rainfed areas are limited water availability [4] and low farmers' interest to cultivate soybean due to the profit is lower than other food crops' profit [5]. Most of acidic dry lands in Lampung have characteristics of poor macro and micro biotic nutrient as well as high Al saturation level They require high dosage of organic and chemical fertilizers for high soybean yield [10]. Some studies related to the application of soybean cultivation technology components in acidic dry land of Lampung have been carried out. The paper is written to find out the results of the introduction and application of soybean cultivation technology package of Biodetas in specific rainfed area with acidic soil of Lampung Province in improving soybean productivity and farmers’ income
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