Nitrogen and phosphorus fertilization for efficient corn production in Virginia
| dc.contributor.author | Martz, Marvin E. | en |
| dc.contributor.department | Crop and Soil Environmental Sciences | en |
| dc.date.accessioned | 2022-05-24T17:21:36Z | en |
| dc.date.available | 2022-05-24T17:21:36Z | en |
| dc.date.issued | 1995 | en |
| dc.description.abstract | Traditional com fertilization methods of broadcasting N fertilizer, and applying P fertilizer to soils testing high to very high in plant-available P, can be inefficent. Experiments were conducted at several locations in Virginia to evaluate if band applications of N fertilizer are more efficient than surface broadcast applications, to determine optimum starter-band and sidedress N rates for com grown in Virginia, to evaluate possible indicators of optimum starter-band and sidedress N rates, and to determine if there is any response to P fertilizer application to com grown on soils testing high to very high in plant-available P. Starter-band N rates of 11, 34, 56, and 78 kg ha⁻¹, and a treatment of 67 kg ha⁻¹ broadcast plus 11 kg ha⁻¹ in a starter-band, were applied in combination with sidedress-N rates of 0, 67, 134, and 202 kg ha⁻¹. In the phosphorus experiment, starter-band rates of 0, 22, 45, and 67 kg P₂O₅ ha⁻¹ were applied. Band application of N increased com plant tissue N content at most locations compared to broadcast application. Fifty-six kg ha⁻¹ was determined to be an economically viable starter-band N rate for com grown in Virginia. Optimum sidedress N rates were determined to be site- and season-dependent and no indicators of optimum starter-band N rates or sidedress N rates were observed. On soils testing high to very high in plant-available P, grain yield did not respond to additions of P fertilizer. | en |
| dc.description.degree | M.S. | en |
| dc.format.extent | xii, 163 leaves | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.uri | http://hdl.handle.net/10919/110186 | en |
| dc.language.iso | en | en |
| dc.publisher | Virginia Polytechnic Institute and State University | en |
| dc.relation.isformatof | OCLC# 34353578 | en |
| dc.rights | In Copyright | en |
| dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
| dc.subject.lcc | LD5655.V855 1995.M379 | en |
| dc.title | Nitrogen and phosphorus fertilization for efficient corn production in Virginia | en |
| dc.type | Thesis | en |
| dc.type.dcmitype | Text | en |
| thesis.degree.discipline | Crop and Soil Environmental Sciences | en |
| thesis.degree.grantor | Virginia Polytechnic Institute and State University | en |
| thesis.degree.level | masters | en |
| thesis.degree.name | M.S. | en |
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