天津农业科学2024，Vol.30Issue(12)：36-43,8.DOI:10.3969/j.issn.1006-6500.2024.12.007
天津稻作农田土壤理化特性及稻米品质分布特征
Distribution Characteristics of Soil Physical and Chemical Properties and Rice Quality in Rice Cropping Field of Tianjin
摘要
Abstract
In order to study the soil quality condition and its influence on rice quality in the Xiaozhan rice growing area of Tianjin,25 soil sites in Xiaozhan Town of Jinnan were investigated in this study to obtain the data of 7 indicators of fertility,11 indicators of salinity and alkalinity,16 indicators of trace elements and 4 indicators of rice quality.A comprehensive survey of nutrient content,trace elements content,salt content,salt ions composition and distribution characteristics of rice quality was conducted using statistical analysis and correlation analysis methods.The results showed that the total P,total K,available P and K in soil were relatively high.The contents of total and available B,Cu,Mn,S,Zn and Fe were abundant,while the contents of total Mo and available Se were defi-cient.The pH value of soil was fluctuated from 8.07 to 8.96,and the overall soil was alkaline.The total salt content of soil was 1.64 g·kg-1,and 60%of the soil was classified as mildly saline soil.And 64%of the soil were chloride-type saline soils with high levels of Na+and Cl-.The chalkiness,gel consistency,and the amylose content of rice in Xiaoshan Town of Jinnan were 1.27%,81.14 mm and 17.75%,meeting the standards of Grade 2 and above,indicating that the rice is of good quality.The results of correlation analysis showed that negative correlations between soil organic matter and Na+and SO42-,and positive correlations between organic matter and nutrients,available B,Cu,Mn,Mo,S,Zn were observed.The available B,Mn,Mo,S and Se of soil were positively correlated with K+,while negatively correlated with SO42-.The chalkiness,gel consistency,and the amylose of rice were positively correlated with soil available B,Zn,and Fe,and protein of rice was positively correlated with available Mo of the soil.In summary,the soil in Tianjin Xi-aozhan rice planting area has the characteristics of alkaline and mild salinization.And the content of soil nutrients and trace elements is relatively rich,and the quality of Xiaozhan rice is good.The results of this study can provide a theoretical basis for saline-alkaline soil amelioration and precise fertilization of crops in Xiaozhan rice planting areas.关键词
土壤质量/盐碱化/微量元素/稻米品质Key words
soil quality/salinization and alkalization/trace elements/rice quality分类
农业科技引用本文复制引用
杨婷婷,江胜国,邬立,郑爱军..天津稻作农田土壤理化特性及稻米品质分布特征[J].天津农业科学,2024,30(12):36-43,8.基金项目
天津市盐碱地调查项目(TGPC-2023-D-0441) （TGPC-2023-D-0441）
天津华北地质勘查局科研项目(HK2024-B03) （HK2024-B03）
