Analysis of income and factors determining the adoption of integrated rice-fish farming system in Seyegen Districts Sleman Regency, Yogyakarta, Indonesia

Integreted rice-fish farming is a potential alternative farming to increase farmers' income in overcoming increasingly competitive land use. Rice-fish farming has been applied in Margoluwih Village, Seyegan District, Sleman Regency, Yogyakarta [Indonesia] Province for a few years. This study aims to analyze the use of inputs and production costs in rice-fish (minapadi) farming compared to monoculture rice farming, to estimate the income of rice-fish farming and monoculture rice farming, and to identify factors that influence farmers' decision in adopting the integrated rice-fish farming. The study was conducted at Margoluwih Village, Sayegan District, Sleman Regency, Yogyakarta in March 2017. A total of 50 farmers were surveyed, comprising of 25 rice-fish farmers and 25 monoculture rice farmers. The methods used to achieve these objectives are descriptive analysis, income analysis, and logistic regression analysis. The results show that rice-fish farming requires inputs such as fish seeds, fish feed, prebiotics, and molasses of sugarcane while monoculture farming does not require such inputs, but monoculture farming uses pesticides and herbicides to overcome pest attacks and applies more chemical fertilizers than rice-fish farming. The labor time devoted to ricefish farming is also higher than in monoculture farming. The total cost of rice-fish farming per hectare in one production season is Rp 63.47 million, while the total cost of monoculture rice farming amounted to Rp 17.55 million. However, rice-fish farming significantly earn more income compared to monoculture farming with an average value of Rp 28.45 and Rp 3.19 million per hectare in one growing season, respectively. Income is believed to be the main factor in determining the adoption, while social factors that influence farmer's decision to adopt rice-fish farming are age of farmer and experience of rice cultivation.