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Nitrogen management for Mid-Atlantic hard red winter wheat production


, : Nitrogen management for Mid-Atlantic hard red winter wheat production. Agronomy Journal 97(1): 257-264

Although soft red winter wheat (SRWW) (Triticum aestivum L.) is the predominant class in the Mid-Atlantic, there is a recently established program for producers to grow hard red winter wheat (HRWW). This program offers a base price plus premiums for HRWW meeting quality (test weight and protein content) standards. This study's objectives were to evaluate the effect of N management strategies on HRWW yield and protein content and to determine the economic return using those strategies. Two HRWW cultivars used by producers in this HRWW program were produced at two locations in Maryland in a split plot arrangement of N treatments within a randomized complete block experimental design. Main plots (2002) were a factorial arrangement of those cultivars and four fall and Feekes growth stage (GS) 2/3 N treatments. Split plots (2002) were eight N timing and rate combinations at GS 5/6, GS 8, and/or GS 10.1. Main plots (2003) were a factorial arrangement of the cultivars and fall N supplied by either ammonium sulfate (AS) or urea-ammonium nitrate (UAN) and GS 2/3 N treatments. Split plots (2003) were GS 5/6, GS 8, and 10.1 N timing and rate combinations. Wheat yield was significantly improved with GS 8 and/or 10.1 N applications both years. Protein content responded to GS 8 and 10.1 N applications in 2002; however, the response in 2003 was dependent on location and N amount at GS 5/6. Within the price and premium structure, best return was observed for split applications of N; 50 or 68 kg ha(-1) at GS 2/3 followed at GS 5/6 with 50 or 68 kg N ha(-1). No fall N benefit was observed.

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Other references

Heaf, Frederick R.G., 1926: Sedimentation rate in pulmonary tuberculosis. Tubercle 8(3): 97-102

Good B.J., 1985: A method for controlling the within root carbon dioxide concentration. A method is presented for the control of carbon dioxide concentrations within the roots of Fraxinus pennsylvanica Marsh. The results indicated a linear fit of the root CO2 concentrations to the CO2 levels of the treatment gases: y = 1.1x + 105 (r...

Coumel, C.; Ripault, P.; L.B.zec, J.M.; Duval, B.; Molinier, H.; Vallart, J., 1970: Double location in the maxilla of Richter's syndrome. Revue de Stomatologie et de Chirurgie Maxillo-Faciale 71(7): 613-624

Lee Wen, Hsiang, 1962: Some trilobites from the Middle Cambrian of Western Honan. Descriptions of the specimens found include 2 spp. from the Changhsia formation, Proasaphiscus affluens and Taitzuia magna; 2 spp. from the Hsuchuan formation, ENGFENGIA (Alokistocaridae) with type T. Latilimbata and Metagraulos abrota.

Kowalewski J.; Kuduk I.; Pytko H.; Szczepanski L.; Zaprawa R., 1982: Nitro blue tetrazolium reduction test in peripheral blood and articular exudate granulocytes in patients with rheumatoid arthritis. In 35 patients with various grades of activity of rheumatoid arthritis the NBT [Nitro Blue Tetrazolium] reduction test was done using granulocytes from the peripheral blood and articular exudates. The proportion of NBT-reducing granulocytes was sl...

Musser, G., 2010: A large lump of coal. Scientific American 302(1): 26-26

Takahashi, M., 1968: Examination for radiologists in the United States. Rinsho Hoshasen. Clinical Radiography 13(3): 229-237

Borchers E.A.; Taylor R.T., 1988: Inheritance of fruit bitterness in a cross of cucurbita mixta x cucurbita pepo. A cross of 'Green Striped Cushaw' pumpkin (Cucurbita mixta) X 'Goldbar' hybrid summer squash (C. pepo), neither of which have bitter fruit, produced an F1 having extremely bitter fruit. Inheritance data suggest that fruit bitte...

Calvin D.D.; Welch S.M.; Poston F.L., 1988: Evaluation of a management model for second generation european corn borer lepidoptera pyralidae for use in kansas usa. A European corn borer (ECB), Ostrinia nubilalis (Hubner), decision model developed from published literature was evaluated. Model strengths and weaknesses were determined using sensitivity analysis and field validation data. Correspondence between...

Dunworth J.N.; Evans J.M.; Charles J.B.; Knapp C.F., 1990: Cardiovascular responses to the prelaunch position followed by 20 hrs of 6 degree head down bedrest plus lasix. Aviation Space & Environmental Medicine 61(5): 496