Comparison of simulated crop yield patterns for site-specific management

被引:20
作者
VanUffelen, CGR [1 ]
Verhagen, J [1 ]
Bouma, J [1 ]
机构
[1] AGR UNIV WAGENINGEN,DEPT SOIL SCI & GEOL,NL-6700 AA WAGENINGEN,NETHERLANDS
关键词
D O I
10.1016/S0308-521X(96)00083-2
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Site-specific management (SSM) aims to maximise crop production and make efficient use of agrochemicals. This is achieved by varying farm management practices with consideration of local variability. Maps displaying relevant soil variability are needed to guide these sire-specific practices. As it takes years to collect field and leaching data to produce maps, use of simulation models is recommended to produce yield and leaching patterns. Based on 65 well-documented locations on a 2.2 ha field, simulations of potato growth were made for 7 years, assuming a water-limited production situation. From these point simulations crop development patterns are derived using kriging techniques, For site-specific management we Meed to determine areas with relatively uniform behaviour in different years. A pattern-comparison technique, based on taxonomic distances between patterns among the 7 years, was modified and used to determine a prototype pattern. This prototype pattern is considered to be the basis for a SSM map. (C) 1997 Published by Elsevier Science Ltd.
引用
收藏
页码:207 / 222
页数:16
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