摘要
为了探究综合土壤改良剂对水稻育秧棚盐碱土改良效果,通过田间小区试验,在等量石膏、菌渣及硫酸铝基础上设置不同腐殖酸用量处理,与未改良前的土壤容重、孔隙度、pH、电导率、盐基离子进行比较分析。结果表明,施用改良剂S5使土壤的容重从1.31g·cm^(-3)降低到1.21g·cm^(-3);孔隙度增加到67.50%,电导率由0.360mS·cm^(-1)下降到0.260mS·cm^(-1);pH由9.42下降到8.41,由碱性变成微碱性;全盐量由1.741g·kg^(-1)下降到0.849g·kg^(-1),且差异显著。可见,改良剂S5对水稻育秧棚盐碱土改良效果较好,可以达到生产应用要求。
In order to explore the effect of comprehensive soil amendments on the improvement of saline-alkali soil in rice seedling shed,through field experiments,different dosages of humic acid were set on the basis of equal amounts of gypsum and fungus residue-based aluminum sulfate,which were comparable to the soil bulk density before improvement,the porosity,pH,conductivity,and base ions were compared and analyzed.The results showed that the application of improver S5reduced the soil bulk density from 1.31g·cm-3 to1.21g·cm-3.The porosity increased to 67.50%and the electrical conductivity decreased from 0.36mS·cm-1to 0.260mS·cm-1.And the pH decreased from 9.42to 8.41,changed from alkaline to slightly alkaline,the total salt content significantly reduced from 1.741g·kg-1 to 0.849g·kg-1.The amendment S5had a better effect on the improvement of saline-alkali soil in rice seedling sheds,which can meet the requirements of production and application.
作者
孙兴荣
李杰
卞景阳
刘琳帅
邵凯
刘凯
来永才
SUN Xing-rong;LI Jie;BIAN Jing-yang;LIU Lin-shuail;SHAO Kail;LIU Kai;LAI Yong-cai(Daqing Branch,Heilongjiang Academy of Agricultural Sciences.Daqing 163319,China;Northeast Branch of National Center of Technology Innovation for Saline Allkali Tolerant Rice,Harbin 150086,China;Heilongjiang Academy of Agricultural Sciences,Harbin 150086,China)
出处
《黑龙江农业科学》
2022年第8期42-46,共5页
Heilongjiang Agricultural Sciences
基金
黑龙江省农业科学院科技攻关项目(2021YYYF043)
黑龙江省省属科研院所科研业务费项目“国家耐盐碱水稻技术创新中心东北中心建设”(CZKYF2020A001)
大庆市指导性科技计划项目(zd-2021-98)
黑龙江省农业科学院“农业科技创新跨越工程”专项(HNK2019CX02)
黑龙江省农业科学院高效、绿色现代农业示范项目(TGY-2020-27)。
关键词
改良剂
水稻
育秧棚
盐碱土
amendment
rice
seedling raising shed
saline-alkali soil