The Effect of nitrogen Fertilization and Potassium Humate on Growth and Nitrogen Utilization Efficiencies of Soft Wheat (Sham 10) under the Costal Conditions
Abstract
A filed experiment was conducted using a complete randomized block design at Jableh-Bustan saleh in 2018-2019. The aim was to investigate the effect of increasing rates of nitrogen fertilizer (N: 0, 100, 200, 300 and 400 kg N/h-1) and humate (H: 0, 2.5, 5, and 10 kg H/h-1), and their interactions growth and nitrogen utilization efficiencies by soft wheat (cv. Sham 10). The role of humate in efficiency of N application was also investigated.
Nitrogen utilization efficiency (NUE) and recovery efficiency (RE) were decreased from (122.2% and 282.3%) at N application rate (100 kg N/h-1) to (84.9% and 119.5%) with 400 kg N/h-1, respectively. The decrease in partial factor productivity (PFP) was to a lesser extend from (60.6) at 100 kg N/h-1 to (44.4) with N application rate of 200 Kg/h-1. Thereafter, PFP values decreased slowly to reach a (25.9) with treatment 400 kg N/h-1.
Application of potassium humate significantly affected NUE, RE, and PFP, in which treatments receiving both N and HA application had greater values that those receiving N application alone. Application of 2.5 kg H/h-1 to 100-400 kg N/h-1 led to increased RE values from (282.3, 229, 180, and 119.5 %) to (403.1, 304.5, 242.1, and 140.2 %). PFP values were also increased from (60.6, 44.4, 35.5, and 25.9) to (81.3, 51.8, 45.4, 29.2), respectively.
Increasing N application rate led to significantly increased protein content of grain and percent N translocation to gain (NHI). Both variables were also increased even greater when N application rate (100-400 kg/h-1) was combined with the application of humate. Application of 5 kg H/h-1 increased grain protein (%) by about (16.9, 34.4, 12.13, and 1.87 %), respectively.
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series
Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series . The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal for Research and Scientific Studies - Biological Sciences Series Publisher
journal uses a CC BY-NC-SA license which mean
You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
- The licensor cannot revoke these freedoms as long as you follow the license terms.
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.