Optimum rate of nitrogen fertilization for drip-irrigated wheat under semi-arid conditions
| Autor: | Hussein M. Ragheb, Saudi A. Rekaby, Sabry A. Hegab, Mamdouh A. Eissa |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Irrigation Physiology Crop yield Randomized block design 04 agricultural and veterinary sciences Drip irrigation 01 natural sciences Human fertilization Agronomy 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Water-use efficiency Agronomy and Crop Science Plant nutrition Water use 010606 plant biology & botany Mathematics |
| Zdroj: | Journal of Plant Nutrition. 41:1414-1424 |
| ISSN: | 1532-4087 0190-4167 |
| DOI: | 10.1080/01904167.2018.1454956 |
| Popis: | Limited water availability in arid and semi-arid wheat production systems increases the need of applying efficient drip irrigation systems. However, there is little information available about the optimum level of nitrogen (N) fertilization for drip-irrigated wheat. A two-years field study in the semi-arid region of Upper Egypt was carried out in a randomized complete block design to investigate the response of drip-irrigated wheat to three levels of N fertilization (N120 = 120, N180 = 180, and N240 = 240 kg ha−1). N240 increased the uptake of N, P, and K by 66.3, 48.6, and 43.5%, respectively, as compared to N120. The application of N240 increased the grain yield by 28.4 and 40.4% and water use efficiency by 27.6 and 41.8% the first and second season, respectively, as compared to N120. Based on the obtained results, it is recommended to fertilize drip-irrigated wheat by 240 kg ha−1. |
| Databáze: | OpenAIRE |
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