An integrated approach to site-specific management zone delineation
Dividing fields into a few relatively homogeneous management zones (MZs) is a practical and cost-effective approach to precision agriculture. There are three basic approaches to MZ delineation using soil and/or landscape properties, yield information, and both sources of information. The objective o...
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| Format: | Article |
| Language: | English |
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Higher Education Press
2018-11-01
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| Series: | Frontiers of Agricultural Science and Engineering |
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| Online Access: | http://academic.hep.com.cn/fase/fileup/2095-7505/PDF/22472/1526621265711-677641955.pdf |
| _version_ | 1818555226359070720 |
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| author | Yuxin MIAO, David J. MULLA, Pierre C. ROBERT |
| author_facet | Yuxin MIAO, David J. MULLA, Pierre C. ROBERT |
| author_sort | Yuxin MIAO, David J. MULLA, Pierre C. ROBERT |
| collection | DOAJ |
| description | Dividing fields into a few relatively homogeneous management zones (MZs) is a practical and cost-effective approach to precision agriculture. There are three basic approaches to MZ delineation using soil and/or landscape properties, yield information, and both sources of information. The objective of this study is to propose an integrated approach to delineating site-specific MZ using relative elevation, organic matter, slope, electrical conductivity, yield spatial trend map, and yield temporal stability map (ROSE-YSTTS) and evaluate it against two other approaches using only soil and landscape information (ROSE) or clustering multiple year yield maps (CMYYM). The study was carried out on two no-till corn-soybean rotation fields in eastern Illinois, USA. Two years of nitrogen (N) rate experiments were conducted in Field B to evaluate the delineated MZs for site-specific N management. It was found that in general the ROSE approach was least effective in accounting for crop yield variability (8.0%–9.8%), while the CMYYM approach was least effective in accounting for soil and landscape (8.9%–38.1%), and soil nutrient and pH variability (9.4%–14.5%). The integrated ROSE-YSTTS approach was reasonably effective in accounting for the three sources of variability (38.6%–48.9%, 16.1%–17.3% and 13.2%–18.7% for soil and landscape, nutrient and pH, and yield variability, respectively), being either the best or second best approach. It was also found that the ROSE-YSTTS approach was effective in defining zones with high, medium and low economically optimum N rates. It is concluded that the integrated ROSE-YSTTS approach combining soil, landscape and yield spatial-temporal variability information can overcome the weaknesses of approaches using only soil, landscape or yield information, and is more robust for MZ delineation. It also has the potential for site-specific N management for improved economic returns. More studies are needed to further evaluate their appropriateness for precision N and crop management. |
| first_indexed | 2024-12-12T09:50:31Z |
| format | Article |
| id | doaj.art-b88d8365e4cd4cb293728fbecc1bd863 |
| institution | Directory Open Access Journal |
| issn | 2095-7505 |
| language | English |
| last_indexed | 2024-12-12T09:50:31Z |
| publishDate | 2018-11-01 |
| publisher | Higher Education Press |
| record_format | Article |
| series | Frontiers of Agricultural Science and Engineering |
| spelling | doaj.art-b88d8365e4cd4cb293728fbecc1bd8632022-12-22T00:28:17ZengHigher Education PressFrontiers of Agricultural Science and Engineering2095-75052018-11-015443244110.15302/J-FASE-2018230An integrated approach to site-specific management zone delineationYuxin MIAO, David J. MULLA, Pierre C. ROBERT0Precision Agriculture Center, Department of Soil, Water and Climate, University of Minnesota, St. Paul, MN 55108, USADividing fields into a few relatively homogeneous management zones (MZs) is a practical and cost-effective approach to precision agriculture. There are three basic approaches to MZ delineation using soil and/or landscape properties, yield information, and both sources of information. The objective of this study is to propose an integrated approach to delineating site-specific MZ using relative elevation, organic matter, slope, electrical conductivity, yield spatial trend map, and yield temporal stability map (ROSE-YSTTS) and evaluate it against two other approaches using only soil and landscape information (ROSE) or clustering multiple year yield maps (CMYYM). The study was carried out on two no-till corn-soybean rotation fields in eastern Illinois, USA. Two years of nitrogen (N) rate experiments were conducted in Field B to evaluate the delineated MZs for site-specific N management. It was found that in general the ROSE approach was least effective in accounting for crop yield variability (8.0%–9.8%), while the CMYYM approach was least effective in accounting for soil and landscape (8.9%–38.1%), and soil nutrient and pH variability (9.4%–14.5%). The integrated ROSE-YSTTS approach was reasonably effective in accounting for the three sources of variability (38.6%–48.9%, 16.1%–17.3% and 13.2%–18.7% for soil and landscape, nutrient and pH, and yield variability, respectively), being either the best or second best approach. It was also found that the ROSE-YSTTS approach was effective in defining zones with high, medium and low economically optimum N rates. It is concluded that the integrated ROSE-YSTTS approach combining soil, landscape and yield spatial-temporal variability information can overcome the weaknesses of approaches using only soil, landscape or yield information, and is more robust for MZ delineation. It also has the potential for site-specific N management for improved economic returns. More studies are needed to further evaluate their appropriateness for precision N and crop management.http://academic.hep.com.cn/fase/fileup/2095-7505/PDF/22472/1526621265711-677641955.pdfeconomically optimum nitrogen rate|fuzzy cluster analysis|precision nitrogen management|site-specific management|soil landscape property|yield map |
| spellingShingle | Yuxin MIAO, David J. MULLA, Pierre C. ROBERT An integrated approach to site-specific management zone delineation Frontiers of Agricultural Science and Engineering economically optimum nitrogen rate|fuzzy cluster analysis|precision nitrogen management|site-specific management|soil landscape property|yield map |
| title | An integrated approach to site-specific management zone delineation |
| title_full | An integrated approach to site-specific management zone delineation |
| title_fullStr | An integrated approach to site-specific management zone delineation |
| title_full_unstemmed | An integrated approach to site-specific management zone delineation |
| title_short | An integrated approach to site-specific management zone delineation |
| title_sort | integrated approach to site specific management zone delineation |
| topic | economically optimum nitrogen rate|fuzzy cluster analysis|precision nitrogen management|site-specific management|soil landscape property|yield map |
| url | http://academic.hep.com.cn/fase/fileup/2095-7505/PDF/22472/1526621265711-677641955.pdf |
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