Evaluation of soil quality of irrigated and rainfed rice fields In Maginti District, West Muna Regency

Darwis Suleman, Syamsu Alam, La Ode Rustam, Agus Setiawan — Thu, 12 Feb 2026 00:00:00 +0900

The decrease of soil quality as a result of anthropogenic activities is one of the challenges in achieving the sustainable plant productivity. Therefore, the analysis of physical, chemical and biological characters of soil needs to be carried out periodically in order to assess the changes in soil quality. Hence, several physical and chemical attributes of soil have been evaluated to determine soil quality of irrigated and rainfed rice fields as well as providing management directives to improve the soils in Maginti District, West Muna Regency. This study was performed in the form of a survey in which sample points were determined purposively for 2 types of land use, namely irrigated and rainfed rice fields. Six soil sample were collected from irrigated paddy fields, meanwhile in rainfed rice fields 3 soil samples were taken and each sample point consisted of 4 subsamples and then composited, so that 9 composite samples were obtained. The variables observed included: soil texture, pH, organic C, and total N, as well as P and available K. The results revealed that several chemical properties of irrigated soil were higher than in rainfed rice fields, such as soil pH (6.3), organic C (0.99%), total N (0.27%), and available P (40.54 kg ha-1), while available K was low (72.2 kg ha-1). The soil quality index of irrigated and rainfed rice fields was 0.56 (medium) and 0.36 (low), respectively, with the main limiting factor being the low organic C levels, especially in rainfed rice fields. Therefore, to improve soil quality, it is highly recommended to combine inorganic and organic fertilizers to maintain sustainable soil fertility.

Feasibility Analysis of Argopuro Robusta Coffee Farming

Thu, 12 Feb 2026 06:16:20 +0900

Coffee is one of Indonesia’s leading export commodities with high economic value in the global market. Coffee production continues to increase annually, including in Jember Regency, where coffee is predominantly cultivated under smallholder farming systems that rely on inherited land management practices. Coffee cultivation has become a long-standing cultural tradition among plantation farmers in several areas of Jember Regency. This study employed a quantitative descriptive method using income analysis, Revenue–Cost (R/C) ratio, and Benefit–Cost (B/C) ratio as indicators of farming feasibility. Assessing farm feasibility is essential to identify the prospects for sustainable coffee cultivation in the future. The research sample was selected using purposive sampling. The results show that the average total revenue of coffee farming reached IDR 67,860,023 per hectare per year, with production costs amounting to IDR 8,528,131 per hectare per year. Consequently, the net income of coffee farmers was IDR 59,331,892 per hectare per year, with an R/C ratio of 7.9 and a B/C ratio of 6.9. These findings indicate that Argopuro coffee farming in Jember Regency is economically feasible and provides significant profits, thereby supporting its sustainability as a smallholder agricultural enterprise.

AGRICOLA

Evaluation of soil quality of irrigated and rainfed rice fields In Maginti District, West Muna Regency

Feasibility Analysis of Argopuro Robusta Coffee Farming