Computer specified fertilizer application for agricultural fields

A computer and computer program technology, applied in the field of farmland fixed-point fertilization, to achieve the effect of reducing the amount of farmland fertilization, reducing crop production costs, and reducing negative impacts

Inactive Publication Date: 2004-06-16
CARGILL INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the output of a single farmland has variables in this respect, the inventor has noticed that all the variable fertilization systems in the prior art use a single target yield to measure a farmland

Method used

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  • Computer specified fertilizer application for agricultural fields
  • Computer specified fertilizer application for agricultural fields
  • Computer specified fertilizer application for agricultural fields

Examples

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Embodiment Construction

[0026] As shown in FIG. 1, a conventional computer system 100 has at least one processor component 102 responsible for executing computer program instructions, a memory component 104 for storing programs and data, and a human—the user—interactive with the programs running on the system 100. A user interface device 106, and an output device 110 such as a printer or a display. These and other components are connected by one or more buses 108 to interact with each other. Memory component 104 typically includes volatile random access memory (RAM), nonvolatile read only memory (ROM), and one or more disk drives for storing data and programs.

[0027]Resident in memory 104 is the software program of the present invention. As is conventional, the software program includes executable program instructions 112 for processing various image files 114 and database 116 associated with one or more fields. According to one embodiment of the present invention, the image file 114 may include ...

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Abstract

A map of site-specific amounts of a soil nutrient, to be applied in fertilizer to an agricultural field is created using a map of site-specific amounts of the soil nutrient needed to produce the maximum possible yield at the particular site. Subtracted from the site-specific amounts of nutrient needed are site-specific amounts of the nutrient currently existing in the field, thus producing the map of site-specific nutrient amounts to be added. The nutrient amounts may be added to the soil using the map and conventional variable-rate fertilizer application methods. In one embodiment, the amounts of the soil nutrient needed to produce the maximum possible yield at each site is created using a map of site-specific measures of biomass produced by the field in a past growing season or seasons, which in turn is created from a remotely sensed biomass image.

Description

technical field [0001] The present invention relates to a method / process of fixed-point fertilization in farmland, in particular to a method / process capable of maintaining the maximum possible output of farmland and minimizing the amount of fertilization. Background of the invention [0002] Fertilizers provide nutrients to the soil needed to produce various crops. The most common nutrients in soil are nitrogen, phosphorus, and potassium. Additionally, depending on the soil, some crops also require micronutrients such as zinc (Zn) and iron (Fe). Fertilizers cost money, of course, but in the past, the risk of lower yields from under-fertilizing generally outweighed the dollar bill from over-fertilizing. Because the production of nitrogen fertilizer usually requires the use of natural gas, and the instability of natural gas price will make the price of nitrogen fertilizer rise unpredictably. In addition, excessive fertilization will have a potential negative impact on the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B49/06A01B79/00A01C21/00
CPCY10S111/903A01B79/005A01C21/007Y10S111/90A01B49/06Y02P60/21
Inventor C·弗雷斯H·苏J·哈隆T·A·林格伦
Owner CARGILL INC
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