华南农业大学学报2026，Vol.47Issue(2)：252-263,12.DOI:10.7671/j.issn.1001-411X.202510028
头季施肥模式与播种量互作对再生香稻产量及品质的影响
Effects of the interaction between fertilization regime and seeding rate in main season on yield and quality of ratoon aromatic rice
摘要
Abstract
[Objective]The interaction between main-season fertilization regimes and seeding rates was studied for its effects on yield formation,dry matter accumulation,and grain quality of ratoon aromatic rice aiming to provide an optimized cultivation strategy for high yield and good quality of ratoon aromatic rice.[Method]A two-year(2023-2024)field experiment was conducted using the aromatic rice cultivar'Meixiangzhan 2'.A split-plot design was adopted,with fertilization regime as the main plot.There were five main-season fertilization treatments:CK(unfertilized control),F1(compound fertilizer alone),F2(compound fertilizer plus organic fertilizer),F3(special fertilizer for aromatic rice alone),and F4(special fertilizer plus organic fertilizer).The seeding rate was the subplot,with two levels including conventional seeding rate(D)and high seeding rate(G).Indices including yield,grain quality,dry matter accumulation,and photosynthetic characteristics of the ratoon aromatic rice were measured and analyzed.[Result]The interaction between main-season fertilization regime and seeding rate significantly affected the annual yield and quality of ratoon aromatic rice.The F3G(special fertilizer for aromatic rice with high seeding rate)treatment performed the best,with annual yields of 9.60 and 9.89 t/hm2 in the two years,respectively;The F4G(special fertilizer plus organic fertilizer with high seeding rate)treatment ranked second.The yield increase was primarily attributed to the increased effective panicle numbers in both the main and ratoon seasons.The appropriate main-season fertilization regimes under high seeding rate(F3G and F4G)also significantly enhanced dry matter accumulation capacity during the middle and late stages of the main season(P<0.05).Moreover,the dry matter weight at the main season heading stage was significantly positively correlated with the ratoon season yield(P<0.01).In addition,processing quality exhibited significant inter-annual variation.In 2024,the F4G treatment significantly increased the milled rice rate in the main season(P<0.05),while under the high seeding rates in the ratoon season,the milled rice rate decreased in some treatments.[Conclusion]Adopting a cultivation model with a high seeding rate combined with main-season application of special fertilizer for aromatic rice or special fertilizer plus organic fertilizer can effectively optimize biomass accumulation,promote dry matter production and allocation,and is a feasible strategy for achieving synergistic improvement in annual yield and quality of ratoon aromatic rice.关键词
香稻/产量/再生稻/品质/干物质/光合作用Key words
Aromatic rice/Yield/Ratoon rice/Quality/Dry matter/Photosynthesis分类
农业科技引用本文复制引用
彭洁梅,潘圣刚,莫钊文,李福康,王润波,陈薪羽,黄冠皓,陈浩明,田华,王在满,杨文武..头季施肥模式与播种量互作对再生香稻产量及品质的影响[J].华南农业大学学报,2026,47(2):252-263,12.基金项目
国家重点研发计划(2024YFD2300500) （2024YFD2300500）
广东省再生稻试点种植试验推广项目(2025-2026年度) （2025-2026年度）
以农产品为单元的广东省现代农业产业技术创新团队建设项目"水稻产业技术体系"(2024CXTD05) （2024CXTD05）
广东省科学技术厅农村科技特派员助力"百千万工程"重点派驻任务(KTP20240257) （KTP20240257）
国家水稻产业技术体系(CARS-01) （CARS-01）
