中国瓜菜2026，Vol.39Issue(4)：210-217,8.DOI:10.16861/j.cnki.zggc.2025.0437
铺底膜对土壤养分、莲藕光合特性和产量的影响
Effects of subsurface geomembrane mulching on soil nutrient,photosynthetic characterstics and yield of lotus rhizome
摘要
Abstract
Taking three cultivars of Nelumbo nucifera,Qintang lotus,Elian No.6 and Elian No.10 as materials,two ex-perimental treatments were set:Subsurface geomembrane mulch(M)and no subsurface geomembrane mulch(CK).Ef-fects of subsurface geomembrane mulching on soil nutrient dynamics,growth and photosynthetic parameters of lotus leaves,yield of rhizome were analyzed,in order to provide references for high-quality and high-efficiency cultivation of lotus.The results showed that during 60-150 days after transplanting(DAT),soil pH under M treatment was significantly higher than that under the corresponding CK for all three cultivars.At 180 DAT,soil pH of Elian No.6 under M treatment was significantly higher than that under CK.The content of soil organic matter,total nitrogen,alkali hydrolyzed nitrogen,total phosphorus,available phosphorus,total potassium and available potassium under M treatment were significantly higher than those under the corresponding CK at each sampling date for all three cultivars.At 120 DAT,petiole height and petiole thickness of Qintang lotus under M treatment were significantly higher than those under the corresponding CK.At 90 DAT,petiole height,leaf long radius and leaf short radius of Elian No.6 under M treatment were significantly higher than those under the corresponding CK.At 60 DAT,petiole height and petiole thickness of Elian No.10 under M treat-ment were significantly higher than those under the corresponding CK.At 60 DAT of Elian No.6 and 90 DAT of Qintang lotus,the net photosynthetic rate,stomatal conductance,intercellular CO2 concentration,and transpiration rate under M treatment were higher than those under the corresponding CK.Compared with CK,the rhizome yield under M treatment increased by 109.58%of Elian No.6,65.28%of Qintang lotus,and 42.84%of Elian No.10,respectively.In conclusion,subsurface geomenbrane mulching cultivation pattern of lotus can maintain soil nutrients,improve fertilizer use efficien-cy,promote leaf growth and photosynthetic capacity,and increase rhizome yield.It is a labor-saving and efficient cultiva-tion technique worthy of popularization.关键词
莲藕/铺底膜/土壤养分/光合特性/产量Key words
Lotus rhizome/Subsurface geomenbrane mulch/Soil nutrient/Photosynthetic characteristics/Yield分类
农业科技引用本文复制引用
王虹妍,欧阳秀,苏群,吴银环,高美萍,蒋慧萍..铺底膜对土壤养分、莲藕光合特性和产量的影响[J].中国瓜菜,2026,39(4):210-217,8.基金项目
广西科技计划项目(农业农村领域)(桂科农AA2512260015) （农业农村领域）
广西特色作物覃塘莲藕试验站(桂TS2022012) （桂TS2022012）
广西蔬菜产业科技先锋队(桂农科盟202605) （桂农科盟202605）
广西农业科学院科技发展基金项目(桂农科2024YP104,桂农科2026YT089,桂农科2026YT105) （桂农科2024YP104,桂农科2026YT089,桂农科2026YT105）
