关键词: 稻田, 甲烷排放, 控制, 农业技术

Abstract: In this paper we have summarized the mea-sures for the control of methane emissions from paddy fieldand reduction of methane emissions by agricultural tech-niques. The result shows: (1)among the four different kinds of biogas manure applied as basic manure ,methane emission fluxes in three treatments were reduced by 24 -62%,whichwas 11-56% less than the treatment with chemical fertilizer applied only.Owing to one of the biogas manures (i .e. horse blogas manure )was insufficiently composted ,the decrease in methane emission was not significant (2) The alternation ofnitrogen fertilizer such as using ammonium nitrate and ammo-nium sulfate to replace urea as top application,the methane e-mission fluxes was decredxed by 26%and 46%.separately .(3)The intermittent wet-dry irrigation technique from rice tillering stage to early jointing stage can decrease significantly Tnethane emission flux without any effect on rice yield.( 4)Se-mi- arid cultivation technique can obviously inhibite the emis-sion of mehtane in paddy field.

Key words: paddy field, methane reduction, control, agricultural technique