| dc.contributor.author | Savala, C.E. |
| dc.contributor.author | Crozier, C.R. |
| dc.contributor.author | Smyth, T.J. |
| dc.date.accessioned | 2019-12-04T10:57:50Z |
| dc.date.available | 2019-12-04T10:57:50Z |
| dc.date.issued | 2016-03-04 |
| dc.identifier.citation | Savala, C.E., Crozier, C.R. & Smyth, T.J. (2016). Poultry manure nitrogen availability influences winter wheat yield and yield components. Agronomy Journal, 108(2), 864-872. |
| dc.identifier.issn | 0002-1962 |
| dc.identifier.uri | https://hdl.handle.net/20.500.12478/851 |
| dc.description | Published online: February 5, 2016 |
| dc.description.abstract | Standard poultry manure use recommendations in North Carolina consider waste analysis but not differences among manure types, cropping seasons, or application timing. This study evaluated poultry manure source, N rate strategy, and application time effects on soft red winter wheat (Triticum aestivum L.) tiller density, yield components, grain yield, and N availability coefficients. Coefficients included fertilizer N equivalence based on grain yield and plant-available N based on aboveground plant N content. Four field experiments used broiler litter (BL) and composted layer manure (CLM), two rates (67 and 134 kg total-N ha−1), and three different application times (incorporated in October preplant, Feekes’ 3 in December/January, or Feekes’ 4 in February). Dual-source treatments received 67 kg N ha−1 of manure plus 67 kg N ha−1 as urea ammonium nitrate (UAN) solution at Feekes’ 5. Fertilizer-N (UAN) rate treatments (0, 39, 78, 117, and 156 kg N ha−1) were also included. Yields responded to N inputs but were lowest when BL and CLM were applied at 67 kg N ha−1 either preplant or at Feekes’ 3. Grain yield and N availability were greater with CLM than with BL (3.0 vs. 2.8 t ha−1 grain and 58 vs. 52 kg ha−1 N uptake, respectively). Availability coefficients ranged from 12 to 32%, lower than the standard assumed values of 50 to 60%. The feasible poultry manure application window includes preplant until Feekes’ 4, but fertilizing winter wheat crops solely with poultry manure may supply less N than intended. |
| dc.format.extent | 864-872 |
| dc.language.iso | en |
| dc.subject | Cropping |
| dc.subject | Agriculture |
| dc.subject | Poultry |
| dc.subject | Manures |
| dc.title | Poultry manure nitrogen availability influences winter wheat yield and yield components |
| dc.type | Journal Article |
| dc.description.version | Peer Review |
| cg.contributor.crp | Wheat |
| cg.contributor.affiliation | International Institute of Tropical Agriculture |
| cg.contributor.affiliation | North Carolina State University |
| cg.coverage.region | North America |
| cg.coverage.country | United States |
| cg.isijournal | ISI Journal |
| cg.authorship.types | CGIAR and advanced research institute |
| cg.iitasubject | Farming Systems |
| cg.journal | Agronomy Journal |
| cg.howpublished | Formally Published |
| cg.accessibilitystatus | Open Access |
| local.dspaceid | 75002 |
| cg.targetaudience | Scientists |
| cg.identifier.doi | https://dx.doi.org/10.2134/agronj2015.0355 |
