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标题：Mitigation of greenhouse gases and rice yields through the addition of urea coated biochar and biocompost in rainfed field
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作者：E Yulianingsih ; Indratin
期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2020
卷号：575
期号：1
DOI：10.1088/1755-1315/575/1/012083
语种：English
出版社：IOP Publishing
摘要：Rice is a strategic commodity, economic, and even political. Rice, as an economic commodity, can be seen from its ability to move the economy through the growth of fertilizer companies (organic and inorganic), seeds, pesticides, and agricultural tools and machinery. The research was carried out in the form of a demonstration in upland in Sidomukti Village, Jaken Subdistrict, Pati Regency, Central Java Province. The study was conducted in the dry season (DS) in 2018, using Ciherang rice varieties with Walik Jerami season in upland. The research consisted of 3 treatments, which were Introductory Technology 1 (T1) in the form of urea coated biochar (UCB), Introductory Technology 2 (T2) in the form of biocompost with balanced fertilization and farmer's technique (T0). This results in rice ecosystems by means of farmers' assistance produced higher fluxes than UCB and biocompost settings. Cumulative CH4 flux in the highest plot of farmer's technique compared to UCB and biocompost, farmer's technique produced 1,765.32 mgCH4m−2, biocompost produced 692.04 mgCH4m−2 while the UCB produced 471.67 mgCH4m−2 at the end of observation. Rice ecosystem with UCB produced N2O flux higher than biocompost and farmer's technique. And treatment UCB emitted CH4 226.13 kg ha-1season-1, GWP 5.42 tCO2e ha-1season-1, and has the lowest emission index value compared to the other treatments is 1.45.