Performance of several varieties of maize and upland rice in the intercropping system in Northern Gorontalo

Abstract

This study aims to: 1) knowing the performance of several varieties of maize and upland rice on the application of monoculture and intercropping system cultivation technology, and 2) Financially analyzing maize and upland rice farming with monoculture and intercropping systems in dry land agroecosystems in Gorontalo Province. This assessment activity was carried out with a participatory approach involving 15 cooperative farmers on 12 ha of land in Durian Village, Gentuma Raya District, North Gorontalo Regency on dry climate dry land agroecosystem with a wavy topography in 2018. Maize varieties planted were Nasa 29, Bima 2, Bima 20, HJ 21, JH 27, Bisi 18, NK 22, and Pioneer 35. The varieties of upland rice planted were Situ Bagendit, Inpago 8, Inpago 11, Inpari 42, Ponelo, and Towuti. The results of the study showed that the average productivity of maize with a monoculture system (5.13 t / ha) was higher than the average productivity of maize with an intercropping system (3.61 t / ha). In the monoculture system, maize varieties with the highest productivity was JH 27 (6.4 t / ha). In the intercropping system, maize varieties of the Indonesian Agency for Agricultural Research and Development (IAARD) of BIMA 2 achieved the highest productivity at 4.83 t / ha. The average productivity of upland rice with a monoculture system (4.46 t / ha) was higher than the average productivity of upland rice with an intercropping system (2.17 t / ha). In the monoculture system, the highest productivity was Inpago 11 variety (5.67 t / ha). Whereas in the intercropping system, the highest productivity was the Ponelo variety (3.95 t / ha). Based on farming financial analysis, efficient farming systems were successively from highest to low, namely upland rice monoculture, maize intercropping systems with upland rice, and maize monoculture.