Abstract
Cultivation of maize applying integrated crop management approach (ICM) is an attempt to obtain higher productivity and better income for farmers, through an optimum production efficiency. Research was conducted to study the feasibility of the recommended maize production technology by verifying its selected components on the rainfed area. The components included: plant population, planting method, and rates of fertilizers. The research was conducted in Pangkep and Barru on rainfed areas, involving farmers’ groups as participants, each site from May to September 2012, and July to October 2012, respectively. Results indicated that the optimum rate of N fertilizer on the rainfed was 202.5-225 kg N/ha to increase farmer’s income. Plant population of 66,666 plants/ha was considered optimum on plant spacing of 75 cm x 20 cm or paired rows of (100-50) cm x 20 cm, each giving yield and benefit of relatively similar. Hybrid varieties evaluation indicated that Bima-3 Bantimurung produced higher yield than did Bisi-2, the highest yield was 12.07 t/ha with the benefit of Rp 22,457,625/ha. The MBCR in Pangkep was 8.31 and in Barru was 7.50. The cost of production per kg of grain of Bima-3 Bantimurung was lower, at Rp 640-750/kg. Integration technology components comprise of fertilizers, planting method, and superior variety is recommended for an efficient and profitable maize farming on the rainfed areas.
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