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Title: COMPARATIVE ANALYSIS OF THE YIELD MAP OBTAINED FROM THE JOHN DEERE COMBINE AND THE ASF-INDEX DISTRIBUTION MAP
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COMPARATIVE ANALYSIS OF THE YIELD MAP OBTAINED FROM THE JOHN DEERE COMBINE AND THE ASF-INDEX DISTRIBUTION MAP
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1314-2704
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English
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20
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2.2
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Two independent sources of information on intra-field heterogeneity of crop productivity were investigated. Field verification of both sources of information was carried out. The first source is a map of stable intra-field heterogeneity of soil fertility. This source is obtained by analyzing large satellite data for decades (1984 - 2020). The second source is a crop yield map for a particular year. The map was obtained according to the results of yield measurements from the sensors of the John Deere combine. A map of stable intra-field heterogeneity of soil fertility was created in 2017. The corn yield map was obtained in 2018. Field measurements of yield were carried out in 2017 and 2018. Field measurements showed that in zones of reduced fertility of stable intra-field heterogeneity map the yield of winter wheat and corn is lower than in zones of increased fertility. Thus, the information content of the map is confirmed. Field measurements of the yield of corn confirmed the correct calibration of the sensors of the combine. The map of stable intra-field heterogeneity of soil fertility and the map of corn productivity were intersected. The resulting graphs showed that the average yield according to the combine data has a high correlation with the fertility zones. The distribution of yields within the zones is almost normal distribution.
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conference
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20th International Multidisciplinary Scientific GeoConference SGEM 2020
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20th International Multidisciplinary Scientific GeoConference SGEM 2020, 18 - 24 August, 2020
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; C
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191-198
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18 - 24 August, 2020
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website
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cdrom
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7062
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precision farming; intra-field heterogeneity of soil fertility; big remote sensing data; yield maps
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