长期施用有机肥
long-term application of organic fertilizer
有机质质量
Quality of soil organic matter
Quality of organic matter
沉积有机质
sedimentary organic matter
发荧光的有机质
organic matter with fluorescence
分期配施有机肥
combined application of organic and inorganic fertilizer by stages
分散有机质
disseminated organic matter
dispersed organic matter
腐熟有机质
decomposed organic matter