Nitrogen Management for Teff Hay Production

Kansas Agricultural Experiment Station Research Reports, May 2016

Fertilization of teff with the ESN source of nitrogen (N) at the higher rates, 100 and 125 lb N/a resulted in increased seasonal forage production. The primary increase occurred in the second of three cuttings.

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Nitrogen Management for Teff Hay Production

Kansas Agricultural Experiment Station Research Reports D. H. Min 0 1 J. L. Moyer 0 1 0 Kansas State University , USA 1 Min , D. H. and Moyer, J. L. (2016) "Nitrogen Management for Teff Hay Production," Kansas Agricultural , USA Follow this and additional works at: https://newprairiepress.org/kaesrr Part of the Agronomy and Crop Sciences Commons Recommended Citation - This report is brought to you for free and open access by New Prairie Press. It has been accepted for inclusion in Kansas Agricultural Experiment Station Research Reports by an authorized administrator of New Prairie Press. Copyright January 2016 Kansas State University Agricultural Experiment Station and Cooperative Extension Service. Contents of this publication may be freely reproduced for educational purposes. All other rights reserved. Brand names appearing in this publication are for product identification purposes only. No endorsement is intended, nor is criticism implied of similar products not mentioned. K-State Research and Extension is an equal opportunity provider and employer. Creative Commons License This work is licensed under a Creative Commons Attribution 4.0 License. This forage crops is available in Kansas Agricultural Experiment Station Research Reports: https://newprairiepress.org/kaesrr/vol2/iss3/8 Nitrogen Management for Teff Hay Production Summary Fertilization of teff with the ESN source of nitrogen (N) at the higher rates, 100 and 125 lb N/a resulted in increased seasonal forage production. The primary increase oc‑ curred in the second of three cuttings. Introduction Teff [Eragrostis tef (Zucc.) Trotter] is a warm‑season annual grass that can fill a short‑ term summer void with high‑quality forage. However, little is known about the needs or responses of teff to different N levels, or how it would respond during its season of growth to different sources of N, such as ESN (Environmentally Smart Nitrogen®). Experimental Procedures The plot area at the Mound Valley Unit, Southeast Agricultural Research Center was seeded with 6.5 lb of pure, live seed/a of ‘Tiffany’ teff by hand broadcasting. Individual plot size was 30 by 5 ft. Nitrogen (N) treatments were rates and sources, arranged in a 5 by 2 factorial, plus a check, with four replications in randomized complete blocks. Rates were 25, 50, 75, 100, and 125 lb of N; sources were urea (46% N) and ESN (44% N). Plots were fertil‑ ized on June 10, just after seeding, then harrowed lightly. Plots were harvested on July 14, August 17, and October 6, 2015. Harvest was con‑ ducted with a Carter 3‑ft flail cutter at a height of 3 in. The remainder of the area was clipped at each harvest to the same height. A forage subsample was taken from each plot for moisture determination and analysis of forage N and fiber content. Results and Discussion Forage yields responded to N fertilizer treatments in cut 2, and for total seasonal yield (Table 1). In both cases, only ESN at the higher rates increased yield above the check (0 N) plots. There was an overall tendency (P < 0.10) for ESN treatments to yield more than urea in cut 3. No significant N rate by N source interaction was found in any of the harvests. Urea 1.07 0.74 0.59 2.33 ESN 1.04 0.84 0.67 2.52 LSD (0.05) NS NS NS2 NS3 1Single degree of‑freedom contrast shows zero N yielded less than (P < 0.05) treatments that received 125 N. 2Pr > F = 0.075. 3Pr > F = 0.107. Means, N Rate 25 50 75 100 125 LSD (0.05) Means, N Source 0.91 1.05 1.08 1.09 1.12 NS 0.66 0.73 0.81 0.86 0.90 NS 0.60 0.59 0.62 0.64 0.72 NS 2.14 2.21 2.49 2.57 2.72 0.38 (...truncated)


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D. H. Min, J. L. Moyer. Nitrogen Management for Teff Hay Production, Kansas Agricultural Experiment Station Research Reports, 2016, Volume 2, Issue 3,