脱硫石膏对盐碱地油葵生长及产量的影响

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中图分类号 S565.5;S156.4 文献标识码A文章编号 0517-6611（2025）18-0052-03doi：10.3969/j.issn.0517-6611.2025.18.013

Effect of Desulfurized Gypsum on the Growth and Yield of Oil Sunflower in Saline-alkali Soil

LIU Yu-long12，TIANHai-ming³，ANG Hong-binetal（1.ScholofGeograpyandTourism，Shaaxi NormalUniversiy，Xi’an， Shaanxi710119；ZoshgEvirotalholgevelopentCo，d.，i'nai；.SaniEort tionIndustryGoupCo，td.，Xi'anaai4;4.SniGeologandneralResourcs9OEviroentalGeologyCodi an，Shaanxi 710600）

AbstractInordertosudythfetofesulpuriedgypsumontegrowthandyieldofoilsunflowerinsalie-alkalisoil，fieldepints wereconductedontecultivationofoilsunflowerinsaliealkalilandusingdiferengradientsofesulpuriedgyps.Fvetreattsere set up，namely ： CK（ 0Vhm2 desulfurized gypsum），A treatment （ 5.5Vhm2 desulfurized gypsum），B treatment （ desulfurized gypsum），C treatment （ 16.5t/hm2 desulfurized gypsum），D treatment （ 22.0t/hm2 desulfurized gypsum）.The results showed that desulphurized gypsumhdabeterimprovementectosoilsalizationndtreaentCadthebestimprovementfect，itteHvaluedeasingby 0.45（5.23%） and the total salt content decreasing by 6.17g/kg （ 43.91% ） compared with CK.Desulphurized gypsum had a significant impact on the growth and yield of oil sunflower，with the highest seedling emergence rate of 94.29% in treatment C and the highest plant height in treatment B during the growth period.The yield of oil sunflower was in the order of B>A>C>D>CK. The yield increasing effect of oil sunflower in treatment B was the best，up to 88.54% .The growth indicators and yield of oil sunflower showed a pattern of first increasing and then decreasing with the increase of desulfurized gypsum application rate.

Key WordsSaline-alkali soil; Desulphurized gypsum;Oil sunflower; Growth; Yield

据联合国教育、科学及文化组织（UNESCO）和联合国粮食及农业组织（FAO）不完全统计，全世界盐碱地面积约9.55×108hm2 ，占可耕作土地的 10% ，土壤盐碱化已成为世界关注的环境问题之一[]。（剩余7163字）