Design, Development, and Performance Evaluation of a Fertigation Device for Distributing Solid Fertilizer
| Autor: | Li Hong, Xia Huameng, Chen Chao, Zhang Zhiyang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Fertigation
lcsh:Hydraulic engineering 0208 environmental biotechnology Geography Planning and Development 02 engineering and technology Pressure differential 010501 environmental sciences Aquatic Science engineering.material 01 natural sciences Biochemistry fertilization uniformity lcsh:Water supply for domestic and industrial purposes fertilizer-feeding component lcsh:TC1-978 Process engineering Operating cost 0105 earth and related environmental sciences Water Science and Technology Mathematics lcsh:TD201-500 business.industry 020801 environmental engineering Volumetric flow rate pressure differential tank engineering fertilization equipment Fertilizer business |
| Zdroj: | Water, Vol 12, Iss 2621, p 2621 (2020) Water Volume 12 Issue 9 |
| ISSN: | 2073-4441 |
| Popis: | Solid fertilizers, which have a low operating cost, are widely applied in Chinese crop fields. In order to distribute solid fertilizer through fertigation, an innovative device with a simple structure was designed, which can feed, dissolve, and distribute fertilizer simultaneously. The parameters of the outlet pipe and fertilizer-feeding component were designed, and a preliminary equation for calculating the fertilizer-feeding flowrate was established. Then experiments were conducted to optimize the established equation. Obtained results showed that the deviation between the measured and the calculated feeding flowrate through the optimized equation was about 5%. This ensured that the fertilizer-feeding flowrate can be adjusted accurately. Experiments were also conducted to explore the effect of the working parameters on the fertilization uniformity of the designed device. It was found that as the fertilization time and inlet water flowrate increases, the fertilization uniformity increases but fertilizer concentration decreases. Based on the obtained results, it is concluded that the designed fertigation device outperforms the conventional pressure differential tank that is normally applied to distribute solid fertilizers. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|