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| DOI: | 10.1016/j.agwat.2018.01.010 |
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| Web URL(s): | https://www.sciencedirect.com/science/article/pii/S0378377418300532
Last checked: 04/13/2018
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Tang, Pan;
Li, Hong;
Issaka, Zakaria;
Chen, Chao |
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| Author Affiliation: | Tang, Li, and Chen: Research Centre of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, Jiangsu, China; Issaka: Research Centre of Fluid Machinery Engineering and Technology, Jiangsu University, Zhanjiang, Jiangsu, China and Department of Agricultural Engineering, Tamale Technical University, Tamale, Ghana |
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| Title: | Effect of manifold layout and fertilizer solution concentration on fertilization and flushing times and uniformity of drip irrigation systems |
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| Source: | Agricultural Water Management. Vol. 200, March 1 2018, p. 71-79. |
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| Publishing Information: | [Amsterdam]: Elsevier Scientific Pub. |
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| # of Pages: | 9 |
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| Keywords: | TIC Keywords: Application methods; Application uniformity; Christiansen uniformity coefficient; Drip irrigation; Evaluations; Fertigation; Fertilizer injectors; Irrigation system design; Irrigation uniformity; Soluble concentrations; Water distribution
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| Abstract/Contents: | "Applying fertilizer through drip irrigation system is a very important method to save fertilizer and labour. Three manifold layouts (water supply in one end for transversal drip tapes (M1), water supply in both ends for transversal drip tapes (M2) and water supply in one end for longitudinal drip tapes (M3)) and four different fertilizer solution concentrations (50.00 gL-1 (C1), 66.67 gL-1 (C2), 100 gL-1 (C3) and 200 gL-1 (C4)) were selected to investigated the effect of the manifold and concentration on water fertigation uniformity. Results showed that the emitter at the extreme end of the manifold needed more time to clean the rudimental fertilizer in the drip tapes. The minimal flushing time increased from 8 to 13, 4 to 7 and 7 to 12 min with increasing the fertilizer concentration from C1 to C4 for M1, M2 and M3, respectively. The drip irrigation system needed more time for flushing to reduce the risk of emitter clogging when a higher fertilizer solution concentration was applied. In order of performance, M2 had the highest water and fertilizer uniformity, followed by M3 and lastly by M1. The fertilizer solution concentration had no significant effect on water distribution. However, it had a significant effect on fertilizer distribution. The mass of the applied fertilizer for the drip tapes close to the inlet increased with increasing fertilizer solution concentration from C1 to C4, which indicated that higher fertilizer solution concentration can result in lower fertilizer distribution uniformity. There was a significant effect of the manifold layout on water uniformity. The fertilizer concentration and the interaction between manifold layout and concentration had no significant effect on the water uniformity. Similarly, both the manifold layout and concentration had a significant effect on fertilizer uniformity. The interaction between manifold layout and concentration had a significant effect on the Christiansens uniformity (CU) and distribution uniformity (DU) for fertilizer, whilst, a significant effect on emission uniformity (EU) was not found. The manifold layout and fertilizer solution concentration should therefore be considered in the design and operation of fertigation system." |
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| Language: | English |
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| References: | 33 |
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| Note: | Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Tang, P., H. Li, Z. Issaka, and C. Chen. 2018. Effect of manifold layout and fertilizer solution concentration on fertilization and flushing times and uniformity of drip irrigation systems. Agric. Water Manage. 200:p. 71-79. |
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| DOI: 10.1016/j.agwat.2018.01.010 |
| Web URL(s):
https://www.sciencedirect.com/science/article/pii/S0378377418300532
Last checked: 04/13/2018
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b2205878a |
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