糖醇和壳寡糖螯合钙肥对番茄生长发育的影响

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中图分类号：S641；S14 文献标志码：A DOI编码：10.3969/j.issn.1006—6500.2025.05.010

Effects of Sugar Alcohols and Oligochitosan Chelated Calcium Fertilizer on Tomato Growth and Development

LIU Zhiqiang （DalianAcademyofAgricultural Sciences，Dalian，Liaoning116O36，China）

Abstract：Tisstudyimedtoclarifteefectivenesofsugaralohlandchitososacharideascaliumfertiraddiivesintomato production.Weinvestigatedtheimpactoftheseadditivesontomatogrowth，quality，andnutrientabsorption，usingclearwaterand calciumnitrateasontrols.Theresultsdicatedthatsugaralcoolandchitoligosacchardeehancetegowthqualityndutrit contentoftomatoshenusedashelatingagentsforcalciumfertilizer.Specifically，chitoligosacchardedmonstratedteossignificant effect.Tomato plants treated with chitooligosaccharidechelated calcium showed a 11.69% increase in growth and a 2.64% increase compared to those treated with sugar alcohol. Single-plant production rised by 12.22% and 5.82% ，respectively. Leaf chlorophyll content increased by 16.09% and 6.79% ，respectively.Fruit soluble sugar and vitamin C content rised by 11.97% and 3.45% ，respectively，while titratable acid content decreased by 4.24% .The absorption of calcium in tomato shoots and fruit increased by 7.97% and 5.04% ，respectively，and fruit incidence of disease decreased by 7.27% . Additionally，the absorption of nitrogen， phosphorus，and potassium in the aboveground parts of tomatoes increased by 6.30% ， 6.99% ，and 2.71% ，respectively.In conclusion， bothsugaraloholandchitososacharidecnseeasfectivecalciumfertilizeraditivestopromotetheabsorptionandutilizationof calcium nutrition in tomatoes，with chitooligosaccharide showing the best application effect.

Key Words：sugar alcohols; oligochitosan; chelated calcium fertilizer;tomato; grow; nutrients uptake

钙作为植物生长的必需矿质元素，对植物细胞伸长、根系生长、细胞膜和细胞壁结构的稳定性具有重要作用[1-2]。（剩余6785字）