菌藻肥与脱硫石膏复配对盐碱土壤质量及高丹草产量的影响  

The effect of fungal fertilizer and desulfurization gypsum combined application on the quality of saline-alkali soil and the yield of pacesetter

作　　者：刘霞[1] 张欢 胡宇 王丽萍[1] 乔天 LIU Xia;ZHANG Huan;HU Yu;WANG Li-ping;QIAO Tian(College of Water Conservation and Civil Engineering,Inner Mongolia Agricultural University,Hohhot Inner Mongolia 010018)

机构地区：[1]内蒙古农业大学水利与土木建筑工程学院,内蒙古呼和浩特010018

出　　处：《中国土壤与肥料》2024年第10期127-135,共9页Soil and Fertilizer Sciences in China

基　　金：内蒙古自治区科技计划(财政资金2021GG0369);国家自然科学基金项目(52369009);内蒙古自然科学基金(2023MS05024,YLXKZX-NND052)。

摘　　要：为探讨菌藻肥与脱硫石膏复配对盐碱地土壤的改良效果,在内蒙古黄河南岸灌区开展田间试验,探究空白对照(CK),光合细菌和小球藻7∶3比例、脱硫石膏22.5 t/hm^(2)(FM1),光合细菌和小球藻3∶7比例、脱硫石膏22.5 t/hm^(2)(FM2)和脱硫石膏22.5 t/hm^(2)(F)处理对高丹草生育期土壤水、盐、肥及产量的影响。结果表明:施用改良剂的处理较CK显著降低了土壤含盐量,增加了土壤有机质和速效养分。与CK相比,FM2处理使0~40 cm土壤含盐量降低20.58%;有机质、碱解氮、有效磷、速效钾含量分别增加19.22%、25.60%、27.29%、19.26%;高丹草产量随菌藻混合液中小球藻比例的增加而增加,FM2较CK处理提高21.05%。土壤质量指数值FM2处理改良效果最佳,说明施加以3∶7比例混合的光合细菌和小球藻微生物肥料与脱硫石膏配施能降低盐碱障碍,增加土壤肥力,促进植株生长,从而达到增产的目的。In order to explore the improvement effect of fungal fertilizer and desulfurization gypsum combined application on saline-alkali soil,field experiments were carried out in the irrigation area on the south bank of the Yellow River in Inner Mongolia.The effects of blank control(CK),7∶3 ratio of photosynthetic bacteria and chlorella,22.5 t/hm^(2) of desulfurization gypsum(FM1),3∶7 ratio of photosynthetic bacteria and chlorella,22.5 t/hm^(2) of desulfurization gypsum(FM2)and desulfurization gypsum 22.5 t/hm^(2)(F)on soil water,salt,fertility and yield of pacesetter during the growth period were investigated.The results showed that,compared with CK,the treatment with amendment significantly reduced the soil salt content and increased the soil organic matter and available nutrients.Compared with CK,FM2 treatment reduced the salt content of 0-40 cm soil by 20.58%.The contents of organic matter,available nitrogen,available phosphorus and available potassium increased by 19.22%,25.60%,27.20%and 19.26%,respectively.The yield of pacesetter increased with the increase of the proportion of chlorella in the mixture,and FM2 treatment increased by 21.05%compared with CK treatment.The soil mass index of FM2 treatment had the best improvement effect,indicating that the combined application of photosynthetic bacteria and chlorella microbial fertilizer mixed with desulfurization gypsum in a ratio of 3∶7 could reduce the saline-alkali barrier,increase soil fertility,and promote plant growth,so as to achieve the purpose of increasing yield.

关 键 词：小球藻 光合细菌 烟气脱硫石膏 盐碱地改良 

分 类 号：S156.4[农业科学—土壤学] S544.9[农业科学—农业基础科学]