江苏建湖县耕地地力调查与分析评价
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摘要
为了全面地掌握建湖县土壤地力状况,合理利用土地资源,充分发挥其增产潜力,确保农业的可持续发展,建湖县于2007—2018年承担了农业农村部测土配方施肥资金补贴项目,开展全县的耕地地力调查与评价工作,基本摸清了全县土壤肥力现状及动态变化情况。通过在主要土壤类型上设点,开展耕地质量长期定位监测、施肥情况调查、土壤采样及检测土壤养分,对建湖县的耕地地力养分现状做出了评价,提出了区域肥料施用主体配方,并应用测土配方施肥数据汇总软件和县域耕地资源管理信息系统软件,对测土配方施肥数据、第2次土壤普查空间数据和属性数据进行数字化管理。利用县域耕地资源管理信息系统,编制数字化土壤养分分布图、耕地地力等级图及中低产田类型分布图等,构建了测土配方施肥专家系统和施肥查询系统。
During the period of 2007—2018,Jianhu County,Jiangsu Province,carried out the subsidy project of soil testing and formulated fertilization funded by Ministry of Agriculture and Rural Affairs of the People's Republic of China.This project aimed to comprehensively investigate and assess soil fertility status of the cultivated land in Jianhu county,to appropriately utilize land resources,to fully exert their potential for improving production,and to ensure the sustainable development of agriculture.The implementation of this project involved the survey and evaluation of farmland productivity in the whole county,which identified the soil fertility status and dynamics there.The implementation process consisted of the following steps:selecting the sites representing main soil types,conducting long-term monitoring of the quality of cultivated land at the selected sites,investigating fertilization status,soil sampling and testing of soil nutrients,evaluating soil nutrient status of the arable land in Jianhu County,putting forward regional main fertilizer application formulas,and using relevant softwares to digitally manage the data of soil testing and formulated fertilization and the results of the second general survey of soil spatial data and property data.We also employed the county cultivated land resources management information system to create the digital maps of soil nutrient distribution,farmland productivity levels,and distribution of middle-and low-yielding field types etc.;and established an expert system of soil testing and formulated fertilization,as well as a fertilization query system.
During the period of 2007—2018,Jianhu County,Jiangsu Province,carried out the subsidy project of soil testing and formulated fertilization funded by Ministry of Agriculture and Rural Affairs of the People's Republic of China.This project aimed to comprehensively investigate and assess soil fertility status of the cultivated land in Jianhu county,to appropriately utilize land resources,to fully exert their potential for improving production,and to ensure the sustainable development of agriculture.The implementation of this project involved the survey and evaluation of farmland productivity in the whole county,which identified the soil fertility status and dynamics there.The implementation process consisted of the following steps:selecting the sites representing main soil types,conducting long-term monitoring of the quality of cultivated land at the selected sites,investigating fertilization status,soil sampling and testing of soil nutrients,evaluating soil nutrient status of the arable land in Jianhu County,putting forward regional main fertilizer application formulas,and using relevant softwares to digitally manage the data of soil testing and formulated fertilization and the results of the second general survey of soil spatial data and property data.We also employed the county cultivated land resources management information system to create the digital maps of soil nutrient distribution,farmland productivity levels,and distribution of middle-and low-yielding field types etc.;and established an expert system of soil testing and formulated fertilization,as well as a fertilization query system.
引文
[1]王龙俊,郭文善.图说农谚[M].南京:江苏凤凰科学技术出版社,2016(12):54-74.
[2]颜兵,王绪奎,吴昌智,等.建湖耕地[M].南京:江苏凤凰科学技术出版社,2019(7):106-118.
[2]颜兵,王绪奎,吴昌智,等.建湖耕地[M].南京:江苏凤凰科学技术出版社,2019(7):106-118.
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