Abstract
Rainfed lowland has great potential to produce rice in South Sumatra Province. Rice cultivation in such marginal lowland needs technological innovation for sustainable use. This study aimed to analyze the crop performance and farming feasibility of a New Superior Variety (VUB) in rainfed rice cultivation. The study was carried out on 2019/2020 in Tugu Jaya Village, Lempuing District, OKI Regency. It was implemented in a demonstration plot of rice cultivation covering 2 hectares, using Inpari 30 and 43 varieties. The plant spacing was in accordance with 2:1 “jajar legowo” planting system. This was compared to the tile planting system outside the demonstration plot using IR 42 variety, which was planted by the local farmers. The results of observations of plants’ performance one day before harvest showed that the tallest plant was IR 42 (109.1 cm), the most tillers were from Inpari 43 (19.7 tillers), the longest panicle was of IR 42 (25.1 cm) and the highest harvested crop grain production was from Inpari 30 (6.8 tonnes/ha). In terms of business feasibility, judging from the resulting production and financial indicators, all three varieties were suitable for planting in rainfed lowland. Furthermore, of the three varieties, Inpari 30 on MH 2019/2020 was the most feasible, with a break-even price (BEPr) of Rp. 3,983 per kg; break-even production (BEP) of 1,568 kg per hectare; revenue cost ratio (R/C) of 2.39 and Marginal Benefit-Cost Ratio (MBCR) of 6.96.
Highlights
Agriculture has become more efficient globally, competition for natural resources has intensified in recent decades, mainly due to population growth, industrial development, urbanization and climate change
Two VUBs, Inpari 30 and Inpari 43, were used and were compared with IR 42, the variety commonly grown by farmers
At thirty days after planting, the tallest was Inpari 30 with 79.2 cm and the highest number of tillers was from Inpari 43 with 19.7 tillers
Summary
Agriculture has become more efficient globally, competition for natural resources has intensified in recent decades, mainly due to population growth, industrial development, urbanization and climate change. Soil degradation and water scarcity are some of the most visible manifestations of this competition (FAO, 2017). Degradation of agricultural land has an impact of local people’s livelihoods quality and the health of ecosystems. Soil degradation is an obstacle to achieving food security. Much of the additional land available is not suitable for agriculture. The use of this land for agriculture results in high ecological, social and economic costs (FAO, 2014)
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