扬州大学学报（农业与生命科学版）2025，Vol.46Issue(1)：132-140,9.DOI:10.16872/j.cnki.1671-4652.2025.01.015
滴灌施氮联合生物炭对设施辣椒光合特性和产量的影响
Effects of drip nitrogen fertigation combined with biochar on photosynthetic characteristics and yield of facility pepper
摘要
Abstract
In order to clarify the effects of drip nitrogen fertigation combined with biochar on the photosynthetic charac-teristics and yield of facility pepper.A two-factor randomized block design was used to study the effects of water and ni-trogen management treatments[furrow nitrogen fertigation(NF),drip nitrogen fertigation(ND)]and biochar treatments[no biochar addition(B0),biochar addition(B1)]on yield,growth and photosynthetic characteristics of pepper by facility field experiment.The results showed that compared with NFB0,NFB1,NDB0 and NDB1 increased dry matter accumulation rate of pepper during each growth period,resulted in increased yield,and NDB1 increased the most(41.65％).Mean-while,NFB1,ND B0 and NDB1 increased leaf area per plant,leaf SPAD,net photosynthetic rate,stomatal conductance,maximum photochemical efficiency and actual photochemical efficiency at the full fruit stage of pepper,and reduced inter-cellular carbon dioxide concentration,resulted in improved plant photosynthetic characteristics,and the improvement effect of NDB1 was the best.Pepper yield was significantly negatively correlated with leaf intercellular carbon dioxide con-centration,and significantly positively correlated with the other indexes mentioned above.In conclusion,drip nitrogen fertigation combined with biochar improved plant photosynthetic characteristics to promote pepper growth,resulted in in-creased yield,and the improvement effect of drip nitrogen fertigation combined with biochar was greater than that of solo drip nitrogen fertigation and biochar addition.关键词
辣椒/滴灌施氮/生物炭/光合特性/产量Key words
pepper/drip nitrogen fertigation/biochar/photosynthetic characteristics/yield分类
农业科技引用本文复制引用
胡晨曦,杨剑婷,张杰,祁建波,缪宏,陈学好,陈以博,张永泰,张永吉..滴灌施氮联合生物炭对设施辣椒光合特性和产量的影响[J].扬州大学学报（农业与生命科学版）,2025,46(1):132-140,9.基金项目
江苏省重点研发计划项目(BE2021330) （BE2021330）
江苏蔬菜产业技术体系建设专项[JATS(2023)246] （2023）
江苏里下河地区农业科学研究所科研发展专项[SJ(22)111] （22）
