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| DOI：10.13522/j.cnki.ggps.2017.0727 |
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| Effects of Different Water Sources and Irrigation Methods on Growth and Water-fertilizer Use Efficiency of Maize |
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DING Yanhong, QU Zhongyi, LI Changjian, SUN Guanfang, ZHANG Dongliang, FEN Zhihong
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1. College of Water Conservancy and Civil Engineering，Inner Mongolia Agricultural University， Hohhot 010018， China;2. College of Water Resources and Civil Engineering， China Agricultural University， Beijing 100083， China;3. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China;4. Institute of Water in Wulateqianqi Inner Mongolia, Bayannur 015000, China
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| Abstract: |
| 【Objective】 Water quality and irrigation methods affect plant growth, and the purpose of this paper is, by taking Hetao Irrigation District as an example, to examine water-fertilizer use efficiency as well as the growth of maize irrigated with different methods and waters.【Method】 We investigated two waters: groundwater and surface water diched from the Yellow River. The experiments included groundwater furrow irrigation (J), surface water furrow irrigation (H), and groundwater drip irrigation (D). During the experiments, we measured water and fertilizer use efficiency and the growth of the maize. 【Result】 Drip irrigation significantly improved fertilizer use efficiency and the yield of the maize. Compared with J and H, drip irrigation increased the corn yield by 8%~15% and 10%~15% (P＜0.05), and the water use efficiency by 36.7%~57.6% and 44.4%~66.7% (P＜0.05) respectively. The water use efficiency of J and H was essentially the same. The partial productivity of the nitrogen fertilizer under drip irrigation increased by 117%~131% and 120%~131% (P＜0.05) respectively compared to that under J and H. 【Conclusion】 Drip irrigation can improve water use efficiency, thereby the growth and yield of maize, and is thus the most efficient method for maize irrigation in this region. |
| Key words: irrigation area; irrigation methods; maize; water and fertilizer use efficiency |
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