Abstract: A fertilization amount information management device and the like are provided with which a manager of a farm field or the like can be free of cumbersome operation of drafting fertilization amount plans for entire farm fields and with which a dedicated fertilization amount plan tailored for an actual condition of each farm field can be drafted. A fertilization amount information management device 10 includes a display unit. Fertilization amount plan information 56 on each of farm field portions that are portions of a farm field is generated based on measured growth information 24 that is growth information on a measured plant and is displayed on the display unit 16. Corrected fertilization amount plan information 65 indicating correction needed for each of the farm field portions is able to be input based on the fertilization amount plan information for each farm field displayed on the display unit.

Abstract: A growth information management device and the like with which growth information acquired from a plurality of farm fields can be easily divided or processed in other like manners. A growth information management device 10 generates boundary information on farm field information based on measured growth information 24 that is plant growth information that has been measured, generates independent farm field information 53 sectionalized based on the boundary information, and converts the measured growth information corresponding to the independent farm field information into growth level information 45 that is information indicating a level of growth of a plant and displays the growth level information on a display unit 16.

Abstract: A fertilization map creating system includes a growth sensor, a GPS device, and a growth information accumulating part that stores data, a fertilization map being created based on growth data and position data stored in the growth information accumulating part, and the growth information accumulating part storing the position data and the growth data while a tractor drives in a field. The system further includes a growth condition calculation part that obtains a growth condition of previously set each area in the field based on the data stored in the memory; a fertilization amount calculation part that obtains an amount of fertilization of each area based on the growth condition of each area; and a map creating part that creates the fertilization map showing the amount of fertilization of each area obtained by the fertilization calculation part.

Abstract: A fertilization amount information management device and the like are provided with which a manager of a farm field or the like can be free of cumbersome operation of drafting fertilization amount plans for entire farm fields and with which a dedicated fertilization amount plan tailored for an actual condition of each farm field can be drafted. A fertilization amount information management device 10 includes a display unit. Fertilization amount plan information 56 on each of farm field portions that are portions of a farm field is generated based on measured growth information 24 that is growth information on a measured plant and is displayed on the display unit 16. Corrected fertilization amount plan information 65 indicating correction needed for each of the farm field portions is able to be input based on the fertilization amount plan information for each farm field displayed on the display unit.

Abstract: A growth information management device and the like with which growth information acquired from a plurality of farm fields can be easily divided or processed in other like manners. A growth information management device 10 generates boundary information on farm field information based on measured growth information 24 that is plant growth information that has been measured, generates independent farm field information 53 sectionalized based on the boundary information, and converts the measured growth information corresponding to the independent farm field information into growth level information 45 that is information indicating a level of growth of a plant and displays the growth level information on a display unit 16.