Development and application of a variable rate fertilizer applicator for precision agriculture

Zhang Shuhui; Ma Chenglin; Wu Caicong; Du Qiaoling; Han Yunxia; Zhao Xingming

Volume 19 Issue 1

Jan. 2003

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Abstract

Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE) > 2003 > 19(1): 129-131.

Zhang Shuhui, Ma Chenglin, Wu Caicong, Du Qiaoling, Han Yunxia, Zhao Xingming. Development and application of a variable rate fertilizer applicator for precision agriculture[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2003, 19(1): 129-131.

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Development and application of a variable rate fertilizer applicator for precision agriculture

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Received Date: June 20, 2002
Revised Date: December 08, 2002
Published Date: January 30, 2003

Graphical Abstract

Abstract

Abstract

In this paper, a prototype of a variable rate fertilizer applicator for precision agriculture was constructed. The applicator is based on DGPS satellite positioning principle. It combines GPS, GIS and DDG together to make fertilization decisions and to output the application rate of fertilization into an IC card. When the applicator works in the field, the position data received by GPS, which is equipped on the applicator, stimulates the fertilization decision command in the IC card. The command then controls the rotational velocity of the fertilizer shaft through a single chip computer to realize the variable rate fertilization. Experiment results in the field show that the fertilizer applicator is competent for variable rate fertilization for precision agriculture.
- precision agriculture,
- variable rate fertilizer applicator,
- GPS,
- GIS

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