山东农业科学2024，Vol.56Issue(3)：86-91,6.DOI:10.14083/j.issn.1001-4942.2024.03.011
不同施镁水平对红壤土花生光合特性、干物质积累和产量的影响
Effects of Different Magnesium Application Amounts on Photosynthetic Characteristics,Dry Matter Accumulation and Yield of Peanut in Red Soil
摘要
Abstract
In order to study the influences of magnesium(Mg)to peanut growth and yield in red soil,the pot experiment was conducted with Huayu 25 as test variety by setting five Mg levels(Mg0:0 g/kg;Mg1:0.1 g/kg;Mg2:0.2 g/kg;Mg3:0.3 g/kg;Mg4:0.4 g/kg).The chlorophyll content,photosynthetic characteristics,Mg content,dry matter accumulation and pod yield at maturity stage of peanut were analyzed.The results showed that the growth and yield of peanut were obviously affected by the application of Mg fertiliz-er in a certain range during the whole growth period.The chlorophyll content reached the maximum under Mg2 treatment at flowering and peg forming stage,pod setting stage and maturity stage.At flowering and peg form-ing stage,the net photosynthetic rate,intercellular carbon dioxide concentration and stomatal conductance un-der Mg2 treatment were significantly higher than those of the other treatments.At pod setting stage and maturity stage,compared to Mg0 treatment,the dry matter accumulation under Mg2 treatment increased by 16.4% and 18.9% ,respectively,and the yield and full pod number per plant increased by 15.2% and 66.5% at maturity stage.Increasing Mg application amount to 0.3～0.4 g/kg(Mg3 and Mg4)made a significant negative effect on peanut growth.Comprehensively considering all the characters,the suitable Mg fertilizer application amount for Huayu 25 peanut in red soil was 0.2 g/kg in the experiment conditions.关键词
花生/镁肥/红壤土/叶绿素含量/光合特性/干物质积累/产量Key words
Peanut/Magnesium fertilizer/Red soil/Chlorophyll content/Photosynthetic characteristics/Dry matter accumulation/Yield分类
农业科技引用本文复制引用
高华鑫,王建国,张佳蕾,万书波..不同施镁水平对红壤土花生光合特性、干物质积累和产量的影响[J].山东农业科学,2024,56(3):86-91,6.基金项目
山东省自然科学基金青年基金项目(ZR2021QC162) （ZR2021QC162）
山东省农业科学院农业科技创新工程项目(CXGC2023F13) （CXGC2023F13）
