In this paper, aiming at the problems of insufficient soil nutrients and high salt content in Wudi core demonstration area of Bohai Granary, a monitoring and management system of water, fertilizer and salt in saline-a...In this paper, aiming at the problems of insufficient soil nutrients and high salt content in Wudi core demonstration area of Bohai Granary, a monitoring and management system of water, fertilizer and salt in saline-alkaline farmland based on WebGIS was established in order to monitor and control water, fertilizer and salt. Based on the Windows.NET platform, using B/S mode of operation architecture and Visual Studio 2010 as the software development environment, the related components in ArcGIS Engine were invoked by ArcGIS API for Silverlirht, and the WEB system was developed by C# and XMAL language. Based on the principle of water, fertilizer and salt balance, a monitoring model and a regulation model for water, salt and nutrients were established. Intelligent analysis and application of farmland soil data were realized, and a precision agriculture system with data query, early warning diagnosis, monitoring and control of water, fertilizer and salt was formed. And the "water and salt homologue, water supply due to demand, adequate and multiple" irrigation scheme and the salt and alkali reduction scheme of "synergistic conditioning of agents and nutrients" and a nutrient regulation plan for "stabilizing nitrogen, increasing phosphorus, supplementing potassium at the discretion" and "quick-acting combining slow release" were put forward. Compared with the period without monitoring and control of water and salt, the effect of water saving and fertilizer saving was improved, and the yield of wheat and maize was also significantly increased. It provided guidance for local users to increase crop production and income, and greatly improved the utilization of resources and grain production.展开更多
基金supported by the Independent Innovation and Achievement Transformation Special Project of Shandong Province (Grant Nos. 2014ZZCX07106, 2014ZZCX07402)
文摘In this paper, aiming at the problems of insufficient soil nutrients and high salt content in Wudi core demonstration area of Bohai Granary, a monitoring and management system of water, fertilizer and salt in saline-alkaline farmland based on WebGIS was established in order to monitor and control water, fertilizer and salt. Based on the Windows.NET platform, using B/S mode of operation architecture and Visual Studio 2010 as the software development environment, the related components in ArcGIS Engine were invoked by ArcGIS API for Silverlirht, and the WEB system was developed by C# and XMAL language. Based on the principle of water, fertilizer and salt balance, a monitoring model and a regulation model for water, salt and nutrients were established. Intelligent analysis and application of farmland soil data were realized, and a precision agriculture system with data query, early warning diagnosis, monitoring and control of water, fertilizer and salt was formed. And the "water and salt homologue, water supply due to demand, adequate and multiple" irrigation scheme and the salt and alkali reduction scheme of "synergistic conditioning of agents and nutrients" and a nutrient regulation plan for "stabilizing nitrogen, increasing phosphorus, supplementing potassium at the discretion" and "quick-acting combining slow release" were put forward. Compared with the period without monitoring and control of water and salt, the effect of water saving and fertilizer saving was improved, and the yield of wheat and maize was also significantly increased. It provided guidance for local users to increase crop production and income, and greatly improved the utilization of resources and grain production.
