农学学报2024，Vol.14Issue(2)：36-41,6.
汉中市土壤有效锌的含量分布及影响因素分析
Distribution of Soil Available Zinc Content and Influencing Factors in Hanzhong City
摘要
Abstract
The aim was to solve the problem of the improper fertilization measures in agricultural production in Hanzhong City,which led to the imbalance of the supply capacity of soil trace elements in some places,and restricted the increase of rice,corn and other grain crops.In this study,6142 soil samples were collected from 11 counties and districts in Hanzhong.The content and distribution of available zinc in soil were analyzed by DTPA extraction atomic absorption spectrophotometer.The results showed that the available zinc content of soil in Hanzhong City was mainly distributed between 0.51-1.0 mg/kg and 1.01-1.5 mg/kg,accounting for 34.80%and 30.80%of the total amount.Soil samples with available zinc content less than 1.5 mg/kg accounted for 78.3%of the total amount,that is,78.3%of the available zinc content of soil in Hanzhong was below the middle level,and 47.4%of the available zinc content of soil was at a low and very low level.The average effective zinc content in the soil of rice and corn producing areas was 1.11 mg/kg,with 1.15 mg/kg in rice cultivation areas and 1.07 mg/kg in corn cultivation areas.The effective zinc content in the soil of rice cultivation areas was higher than that of corn cultivation areas,slightly higher than the average value.The content of available zinc in soil was negatively correlated with soil pH,soil organic matter and available phosphorus.To sum up,available zinc in cultivated soil in Hanzhong could generally meet the needs of crop growth,but in some zinc deficient areas,it was recommended to strengthen the application of zinc fertilizer and manure to reduce the impact of zinc deficiency in soil on crops.关键词
土壤有效锌/含量分布/影响因素/汉中市/水稻/玉米Key words
soil available zinc/content distribution/influencing factors/Hanzhong/rice/corn分类
农业科技引用本文复制引用
高鹏,余正军,杨小敏,王涛,李丹妮..汉中市土壤有效锌的含量分布及影响因素分析[J].农学学报,2024,14(2):36-41,6.基金项目
陕西省重点研发计划项目"汉中盆地稻油轮作减肥减药与丰产优质关键技术研究及示范"(2023-ZDLNY-55). （2023-ZDLNY-55）
