| 摘要: |
| 【 目的】探究基施和追施丛枝菌根真菌（arbuscular mycorrhizal fungi，AMF）在不同土壤条件下对玉米 生长及叶绿素荧光特性的影响，明确适宜的施用时期及配套的 AMF 菌剂组合，为AMF在不同土壤条件下助力玉米 增产稳质提供理论依据。【 方法】采用三因素盆栽试验设计，包括施用时期（基施（J）和追施（Z））、土壤类型（基质（C）、 沙土（S）和盐碱土（Y））、菌剂组合（根内根孢囊霉（R）、摩西斗管囊霉（F）、根内根孢囊霉+摩西斗管囊霉（H）），以不施 用AMF（K）为对照，系统研究基施和追施 AMF 在不同土壤条件下的施用效果。【 结果】在不同土壤条件下，AMF菌 肥施用效果表现为根内根孢囊霉+摩西斗管囊霉>摩西斗管囊霉>根内根孢囊霉，且在追施条件下对玉米生长的促 进效果最为显著。在基质中ZCH处理玉米的总根长、株高、生物量、SPAD值和光合性能指数（PIabs）分别较ZCK显著增加11.84%，14.25%，13.80%，16.10%和19.65%；在沙土中，ZSH处理玉米的总根长、株高、生物量、SPAD值和PIabs分别较ZSK显著增加10.81%，13.81%，15.76%，15.13%和16.46%；在盐碱土中，ZYH处理玉米的总根长、株 高、生物量、SPAD值和PIabs分别较ZYK显著增加12.36%，8.43%，15.43%，19.34%和17.15%。【 结论】追施根内根孢囊霉+摩西斗管囊霉能够显著提高根系侵染率并优化根系构型，从而增强根系对水分和养分的吸收能力，促进玉米地上部生物量的积累，在此基础上进一步提升叶片的光合性能。 |
| 关键词: 玉米栽培 丛枝菌根真菌 施用时期 土壤类型 光合特性 |
| DOI：10. 13207/j. jnwafu. 2026. 07. 009 |
| 分类号: |
| 基金项目:鄂尔多斯市重点研发计划项目（YF20232310）；西部之光项目“丛枝菌根真菌对甘草促生作用机制解析研究” |
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| Effects of basal and topdressing application of arbuscular mycorrhizal fungi on maize growth and photosynthetic characteristics |
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ZHANG Peng1, CUI Ying2, JI Minjia2, XIE Min1, LIU Xueping2, FAN Li3, CAO Fuzhong2
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1.Agricultural College，Inner Mongolia Agricultural University，Huhhot，Inner Mongolia 010019，China;2.Erdos Agricultural and Animal Husbandry Technology Extension Center，Erdos，Inner Mongolia 017200，China;3.College of Horticulture and Plant Protection，Inner Mongolia Agricultural University，Huhhot，Inner Mongolia 010091，China
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| Abstract: |
| 【 Objective】This study aims to investigate the effects of basal and topdressing applications of arbuscular mycorrhizal fungi（AMF） on maize growth and chlorophyll fluorescence characteristics under different soil conditions，to identify the optimal application timing and suitable AMF fungal combinations. The findings can provide a theoretical basis for using AMF to enhance maize yield and quality under various soil conditions.【Method】A three-factor design was adopted for pot experiment，including application timing（basal application （J） and topdressing（ Z）），soil type（s substrate（ C），sandy soil（ S），and saline-alkali soil（ Y）），and AMF fungal combinations（Rhizopus intraradices（ R），Funneliformis mosseae（ F），and Rhizopus intraradices+Funneliformis mosseae（ H））. The effects of basal and topdressing AMF application under different soil conditions were systematically studied with no AMF（K） application as control.【Result】Under different soil conditions，the promoting effects of AMF biofertilizers on maize followed the order：Rhizoglomus intraradices+Funneliformis mosseae>Funneliformis mosseae>Rhizoglomus intraradices，with the most pronounced growth-promoting
effects observed under topdressing treatments. In substrate soil，the ZCH treatment significantly increased the to?tal root length，plant height，biomass，SPAD value，and PIabs by 11.84%，14.25%，13.80%，16.10%，and 19.65%，respectively，compared with ZCK. In sandy soil，the ZSH treatment increased these indicators by 10.81%，13.81%，15.76%，15.13%，and 16.46%，respectively，compared with ZSK. In saline-alkali soil，the ZYH treatment increased these indicators by 12.36%，8.43%，15.43%，19.34%，and 17.15%，respectively，compared with ZYK.【Conclusion】Topdressing treatment with Rhizopus intraradices+Funneliformis mosseae significantly enhanced AMF root colonization and optimized root architecture，thereby improving the efficiency of water and nutrient uptake，which in turn promoted aboveground biomass accumulation. On this basis，the pho?tosynthetic performance of maize leaves was further improved. |
| Key words: maize cultivation arbuscular mycorrhizal fung（i AMF） application timing soil types photosyn‑ thetic characteristics |
