Liu Yun-Long, Qian Hao-Yu, Zhang Xin, Zheng Cheng-Yan, Deng Ai-Xing, Jiang Yu, Zhang Wei-Jian
Institute of Crop Sciences, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China.
Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing 210095, China.
Ying Yong Sheng Tai Xue Bao. 2021 May;32(5):1761-1767. doi: 10.13287/j.1001-9332.202105.022.
To explore the effects of arbuscular mycorrhizal fungi (AMF) on the growth of legume crop, pot and field experiments with soybean were conducted. Treatments of inoculation (+AMF) and non-inoculation with AMF (-AMF) were set up for the pot experiment, and AMF mycelium non-limited and limited for the field experiment. Results of the pot experiment showed that inoculation with AMF significantly increased soybean aboveground biomass (16.5%) and root nodules number (131.4%), above-ground plant phosphorus and nitrogen concentrations and uptakes. In the field trial, the above-ground and root biomasses and root nodules number under AMF mycelium non-limited were significantly increased by 123.6%, 61.5%, and 212.5% compared with those under the limited condition, respectively. Plant phosphorus uptake, nitrogen concentration and uptake, and soil available nitrogen and phosphorus concentrations were significantly higher under AMF mycelium non-limited than the limited both in both shoot and root. Our findings provide theoretical reference for further understanding the relationship between legume crop and AMF, as well as the efficient utilization of phosphorus fertilizer.
为探究丛枝菌根真菌（AMF）对豆科作物生长的影响，开展了大豆盆栽试验和田间试验。盆栽试验设置了接种AMF（+AMF）和不接种AMF（-AMF）的处理，田间试验设置了AMF菌丝体无限制和有限制的处理。盆栽试验结果表明，接种AMF显著提高了大豆地上生物量（16.5%）和根瘤数（131.4%），以及地上部植株磷和氮的浓度与吸收量。在田间试验中，与菌丝体有限制条件相比，菌丝体无限制条件下的地上生物量、根生物量和根瘤数分别显著增加了123.6%、61.5%和212.5%。AMF菌丝体无限制条件下地上部和根部的植株磷吸收量、氮浓度和吸收量，以及土壤有效氮和磷浓度均显著高于有限制条件。我们的研究结果为进一步理解豆科作物与AMF之间的关系以及磷肥的高效利用提供了理论参考。
