Watermelon Response to Soluable and Slow Release Nitrogen Fertilizers
| dc.contributor.author | Doerge, Thomas A. | |
| dc.contributor.author | Pier, Jerome | |
| dc.contributor.author | McCreary, Ted | |
| dc.contributor.editor | Oebker, Norman F. | en_US |
| dc.date.accessioned | 2012-03-06T22:10:24Z | |
| dc.date.available | 2012-03-06T22:10:24Z | |
| dc.date.issued | 1992-12 | |
| dc.identifier.uri | http://hdl.handle.net/10150/214499 | |
| dc.description.abstract | A field experiment with subsurface drip irrigated watermelon was conducted on a Casa Grande s.l. soil at the Maricopa Agricultural Center in 1992 to evaluate the field performance of two slow release nitrogen (SRN) fertilizers in comparison to a conventional soluble N source, urea, ammonium- nitrate (UAN-32). Single, preplant applications of 0, 100 and 200 lbs N/acre supplied from methylene urea (Nutralenes) or 100, 150 and 3(X) lbs N/acre from a methylene urea-ammonium sulfate mixture (MUAS) were evaluated in comparison to treatments of UAN-32 containing from 52 to 445 lbs N/acre made in five split applications. Yield response to N rates above 100 lbs/acre were similar for all three N sources, indicating that a single, preplant application of a suitable SRN material at an adequate rate could provide N efficiently over the entire growing season. The highest numerical yield (49.3 tons/acre) was obtained with a N rate of 150 lbs N/acre from the MUAS material. Monitoring of petiole nitrate levels throughout the season indicated that N release from the MUAS was more rapid and more complete than from the methylene-urea product. At suboptimal N rates, i.e. < 150 lbs N/acre, split applications of UAN-32 appeared to be somewhat more efficient than the slow-release products. | |
| dc.language.iso | en_US | en_US |
| dc.publisher | College of Agriculture, University of Arizona (Tucson, AZ) | en_US |
| dc.relation.ispartofseries | Series P-93 | en_US |
| dc.relation.ispartofseries | 370093 | en_US |
| dc.subject | Agriculture -- Arizona | en_US |
| dc.subject | Vegetables -- Arizona | en_US |
| dc.subject | Watermelon -- Arizona | en_US |
| dc.title | Watermelon Response to Soluable and Slow Release Nitrogen Fertilizers | en_US |
| dc.type | text | |
| dc.type | Article | |
| dc.identifier.journal | Vegetable Report | en_US |
| refterms.dateFOA | 2018-04-24T17:28:40Z | |
| html.description.abstract | A field experiment with subsurface drip irrigated watermelon was conducted on a Casa Grande s.l. soil at the Maricopa Agricultural Center in 1992 to evaluate the field performance of two slow release nitrogen (SRN) fertilizers in comparison to a conventional soluble N source, urea, ammonium- nitrate (UAN-32). Single, preplant applications of 0, 100 and 200 lbs N/acre supplied from methylene urea (Nutralenes) or 100, 150 and 3(X) lbs N/acre from a methylene urea-ammonium sulfate mixture (MUAS) were evaluated in comparison to treatments of UAN-32 containing from 52 to 445 lbs N/acre made in five split applications. Yield response to N rates above 100 lbs/acre were similar for all three N sources, indicating that a single, preplant application of a suitable SRN material at an adequate rate could provide N efficiently over the entire growing season. The highest numerical yield (49.3 tons/acre) was obtained with a N rate of 150 lbs N/acre from the MUAS material. Monitoring of petiole nitrate levels throughout the season indicated that N release from the MUAS was more rapid and more complete than from the methylene-urea product. At suboptimal N rates, i.e. < 150 lbs N/acre, split applications of UAN-32 appeared to be somewhat more efficient than the slow-release products. |
