Path Analysis of Factors Limiting Crop Yield in Rice Paddy and Upland Corn Fields
2005
Chung, S.O. (National Institute of Agricultural Engineering, Suwon, Republic of Korea), E-mail: [email protected] | Sudduth, K.A. (University of Missouri, Columbia, Missouri, USA) | Chang, Y.C. (Konkuk University, Chungju, Republic of Korea)
Knowledge of the relationship between crop yield and yield-limiting factors is essential for precision farming. However, developing this knowledge is not easy because these yield-limiting factors are interrelated and affect crop yield in different ways. In this study, data for grain yield and yield-limiting factors, including crop chlorophyll content, soil chemical properties, and topography were collected for a small (0.3 ha) rice paddy field in Korea and a large (36 ha) upland corn field in the USA, and relationships were investigated with path analysis.
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