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Web URL(s): | https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj1999.6361724x Last checked: 03/01/2024 Access conditions: Item is within a limited-access website https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj1999.6361724x Last checked: 03/01/2024 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Solie, J. B.;
Raun, W. R.;
Stone, M. L. |
Author Affiliation: | Solie and Stone: Department of Biosystems and Agricultural Engineering, Oklahoma State University, Stillwater, OK; Raun: Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, OK |
Title: | Submeter spatial variability of selected soil and bermudagrass production variables |
Section: | Soil fertility and plant nutrition Other records with the "Soil fertility and plant nutrition" Section
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Source: | Soil Science Society of America Journal. Vol. 63, No. 6, November/December 1999, p. 1724-1733. |
Publishing Information: | Madison, WI: Soil Science Society of America |
# of Pages: | 10 |
Keywords: | TIC Keywords: Soil testing; Fertilization rates; Cynodon dactylon; Nitrogen; Phosphorus; Potassium; Carbon; Soil pH; Measurement; Biomass; Mathematical equations; Variable-rate application; Soil moisture sensors
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Abstract/Contents: | "The optimal resolution at which soil and plant variables should be sensed and treated is not well defined. This study was conducted to determine the semivariance range where soil test and plant variables were related, and to estimate the minimum spatial scale at which variable rate applications of nutrients should be made. Soil and plant analyses were performed in 490 0.3- by 0.3-m plots from bermudagrass (Cynodon dactylon L.) sod at two locations. Eight soil cores (0-15 cm deep) were collected and composited from each 0.3- by 0.3-m plot. Semivariance analysis was used to estimate the range over which samples of the five soil variables (total N, extractable P, and K, organic C, and pH) and two plant variables (forage total N and biomass) were related. Semivariance statistics including the nugget, sill, correlation range, and intergral scale were calculated. Correlation ranges were between 1.9 and 11.4m with corresponding integral scales between 0.5 and 2.1m. At one location, P exhibited nested sills with multiple ranges. Results indicate that the fundamental field-element dimensions (the area over which variable rate fertilizer applicators should sense and apply materials) is likely to be 1.0 by 1.0m or smaller. To describe the variability encountered in these experiments, soil and plant measurements should be made at the meter or submeter level." |
Language: | English |
References: | 23 |
Note: | Figures Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Solie, J. B., W. R. Raun, and M. L. Stone. 1999. Submeter spatial variability of selected soil and bermudagrass production variables. Soil Sci. Soc. Am. J. 63(6):p. 1724-1733. |
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| Web URL(s): https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj1999.6361724x Last checked: 03/01/2024 Access conditions: Item is within a limited-access website https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj1999.6361724x Last checked: 03/01/2024 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: S 590 .S65 |
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