南京林业大学学报（自然科学版）2024，Vol.48Issue(3)：81-89,9.DOI:10.12302/j.issn.1000-2006.202204006
不同载体菌肥对紫穗槐生长和光合特性及土壤养分的影响
Effects of different carrier bacterial fertilizers on growth,photosynthetic characteristics and soil nutrients of Amorpha fruticosa
摘要
Abstract
[Objective]This study explored the effects of Serratia marcescens N1.14,X-45 bacterial fertilizer inoculated with different carrier substrates on the growth,photosynthetic characteristics,soil pH and available nutrients of Amorpha fruticosa.Based on this,bacterial fertilizer carriers that can effectively replace rare resource peat were determined in order to provide a theoretical basis for the development of microbial fertilizers.[Method]Taking A.fruticosa seedlings as the object,the peat bacterial fertilizer(T0,CK),straw bacterial fertilizer(T1),wheat bran bacterial fertilizer(T2),straw and wheat bran as carrier bacterial fertilizer(volume ratio=1∶1,T3),straw wheat bran and cotton seed hull as carrier bacterial fertilizer(volume ratio=1∶1∶1,T4),and straw wheat bran and soybean cake as carrier bacterial fertilizer(volume ratio=1∶1∶1,T5)were applied.Through comparative analysis,the effects of the application of different carrier bacterial fertilizer on the growth characteristics,photosynthetic characteristics and soil nutrients of A.fruticosa were explored,and treatment groups that can replace peat bacterial fertilizer were selected.[Result]Compared with CK,there were three key findings.First,the growth statuses of T2,T3,T4,and T5 were significantly improved,especially T3.Second,the photosynthetic characteristic parameters of Amorpha fruticosa leaves under T1,T3,T4,and T5 improved to varying degrees.Among the gas exchange parameters,T5 had the most significant improvement effect,and T3 had the most obvious improvement effect on chlorophyll content.At the same time,the improvement effect of compound carrier bacterial fertilizer was better than that of single bacterial fertilizer.Third,the soil nutrient content of A.fruticosa under T3,T4,and T5 treatments increased.[Conclusion]The straw,wheat bran and soybean cake as carrier bacterial fertilizers can promote the growth and development of A.fruticosa,improve photosynthetic characteristics,optimize the soil nutrient environment,improve soil fertility,and effectively replace peat carrier bacterial fertilizer.关键词
微生物菌肥/紫穗槐/生长特性/光合特性/土壤养分Key words
microbial fertilizer/Amorpha fruticosa/growth characteristics/photosynthetic characteristics/soil nutrient分类
农业科技引用本文复制引用
杨皓,刘超,庄家尧,张树同,张文韬,毛国豪..不同载体菌肥对紫穗槐生长和光合特性及土壤养分的影响[J].南京林业大学学报（自然科学版）,2024,48(3):81-89,9.基金项目
国家重点研发计划(2017YFC0505500) （2017YFC0505500）
江苏省教育厅资助项目(2019JSJG247) （2019JSJG247）
江苏高校优势学科建设工程资助项目(PAPD). （PAPD）
