Overview |
Crop Production |
Crop Pattern |
Crop Yield |
Irrigation |
Soil Management | Precision Farming |
Relevant Products |
Relevant Links
Interactive online mapping with XML for agriculture information system at district level Macronutrient elements These are required in bulk quantities for healthy growth of plants, Nitrogen: It is integral component of many compounds, including chlorophyll and enzymes, essential for plant growth processes. Nitrogen can acidify the soil as it is oxidized. Phosphorous: Phosphorous is essential for plant growth and involved in most significant energy transformation. The amount of Phosphorous in the available form at one time is very low. Potassium: It is an activator of enzymes responsible for energy metabolism, starch synthesis, nitrate reduction and sugar degradation. Potassium exerts balancing effect on the elements Nitrogen and Phosphorous. Micronutrient elements Seventeen elements are known to be essential for plant growth, of which eight are required for very small quantities called micronutrients or trace elements. These are Iron, Manganese, Zinc, Copper, Boron, Molybdenum, Cobalt and Chlorine. Zinc: It plays a role in protein synthesis, in the formation of growth hormones and in the reproductive process of certain plants. It promotes seed maturation and production. Iron: It is found in several peraoxidises, and ferredoxine which participates in oxidation / reduction reactions (Nitrate and Sulphate reduction). It is also important in chlorophyll formation. Methodology GIS integrates spatial and other kinds of information within a single system. It offers a consistent framework for analysing geographical data. By putting maps and other kinds of spatial information into digital forms, GIS allows us to manipulate and display geographical knowledge in new and more objective ways. Spatial data consist of digital representations of discrete (spatial) objects. The contents of a map can be captured in a database by turning map features into data base objects.  Fig 4: Tools for Agriculture Information The introduction of ArcView GIS Version 3.0 offers a very powerful tool to global agriculturists. ArcView GIS Version 3.0 lets the user combine vector and raster data for analysis, which makes it an excellent front-end tool in site-specific agriculture and agricultural research. The field desktop GIS sites can be considered as a frame that contains data related to the research fields. Preparing ArcView project for Publishing on the web The AxioMap (Applications of XML for Interactive Online MAPping) runs with ArcView extension, it is suggested to work on ArcView 3.0 or later on any platform, since ArcView extensions are platform-independent. It has been tested the extension on ArcView 3.1 running under Windows 95/98/NT. AxioMap utilises new vector graphics technology that is just being implemented in Internet viewing software; maps created in this manner must be viewed in Internet Explorer version 5 and above, with the VML (Vector Markup Language) option installed (it installs by default). Before converting the ArcView themes to XML, it is necessary to make sure all attribute data need to be displayed are joined to the feature table. An additional column in feature table is the column with object names (labels) to be added. In AxioMap viewer, when a mouse pointer placed over any object, the content of this field is displayed. It is recommend that a column with object names (labels) in feature tables for each of the themes that are converted for the Web. A new AxioMap map is started after making a new directory where all newly created map files will be stored. AxioMap will be converting each map layer into individual XML files, by selecting conversion scripts from the AxioMap pull-down menu. The conversion results are not ‘written in stone’ – the changes of certain parameters in any XML file after the conversion are possible.  Fig 5: |