THE EFFECTS OF ORGANIC FERTILIZERS AS A FRACTION SUBSTITUTE TO CHEMICAL FERTILIZERS ON RICE YIELD AND QUALITY, GREENHOUSE GAS EMISSIONS, AND MICROBIAL DIVERSITY IN SOIL
文献类型： 外文期刊
作者： Hao, Bing 1 ; Zhang, Man 1 ; Min, Hongzhi 1 ; Shao, Qingqin 1 ; Qiao, Cece 1 ; Liu, Jikai 1 ; Li, Xinwei 1 ; Mur, Luis alejandro jose 3 ; Fei, Wang jian 4 ; Ren, Lantian 1 ; Wang, Shimei 2 ;
作者机构： 1.Anhui Sci & Technol Univ, Anhui Engn Res Ctr Smart Crop Planting & Proc Tech, Chuzhou 233100, Peoples R China
2.Anhui Acad Agr Sci, Rice Res Inst, Hefei 230041, Peoples R China
3.Aberystwyth Univ, Dept Life Sci, Penglais Campus, Aberystwyth SY23 2DA, Wales
4.Anhui Sci & Technol Univ, Coll Resource & Environm, Anhui Prov Agr Waste Fertilizer Utilizat & Cultiva, Chuzhou 233100, Peoples R China
关键词： Rice; Greenhouse gas emissions; Microorganisms; Rice quality
期刊名称：PAKISTAN JOURNAL OF BOTANY （ 影响因子：0.9； 五年影响因子：1.0 ）
ISSN： 0556-3321
年卷期： 2025 年 57 卷 4 期
页码：
收录情况： SCI
摘要： With the implementation of China's zero-growth policy for chemical fertilizer application, increasing attention has been directed toward exploring organic fertilizers as partial substitutes for chemical fertilizers. This study investigated rice cultivation under four fertilization regimes: conventional chemical fertilization (CK) and organic fertilizer substitution at 10% (T1), 20% (T2), and 30% (T3) of total chemical fertilizer equivalents. Key findings include: (1) Comparised with CK, the T1, T2, and T3 treatments increased rice yields by 6.22%, 9.06%, and 4.68%, respectively. Organic fertilizer substitution significantly improved grain quality through reduced chalkiness (8.78%-19.49%), decreased amylose content (9.56%12.95%), and increased protein levels (10.06%-17.29%), collectively enhancing palatability. (2) Seasonal greenhouse gas (GHG) emission patterns showed treatment-independent consistency, but cumulative emissions varied with substitution ratios. Notably, T2 and T3 achieved 10.84% and 25.92% reductions in GHG intensity (GHGI) respectively compared to CK, Dominant phyla across treatments included Proteobacteria (8.85%-10.51%), Acidobacteria (10.16%-33.82%), Bacteroidetes (10.82%-71.38%), Chloroflexi (17.05%-22.70%), and Patescibacteria (212.15%-308.41%), The precise mechanisms underlying these microbial-mediated emission processes require further investigation. These findings demonstrate that 20% organic substitution (T2) optimally balances yield enhancement (9.06%) with environmental sustainability (11.00%), providing an effective strategy for green agricultural development in rice production systems.
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