Emissions of Methane and Nitrous Oxide from Rainfed Rice Field Treated with Different Rice Planting Systems and Nematicide Applications at Central Java, Indonesia - Wihardjaka, Anicetus; Researcher at Indonesian Agricultural Environment Research Institute (IAERI) Jl. Jakenan-Jaken Km 5, Jakenan Pati 59182 Central Java, Indonesia (UNIVERSITY OF LAMPUNG, 2016)