Influence of Film Hole Diameter on Soil Water and Nitrogen Transport and Distribution Characteristic under Facilities Conditions

Abstract:

Through the facilities imitating experiment of film hole irrigation with nitric acid potassium solution under different film hole diameter, the content of soil water and nitric nitrogen was determined and analyzed in the different time after irrigation. The result shows: the content of soil water and nitric nitrogen under different film hole diameter reduced with time and achieved the maximum at the center while it is reverse away from film hole; soil water content decreased with the increase of film hole diameter at the same position while the nitric nitrogen content was opposite. The influence of the increase of film hole diameter on soil water and nitric nitrogen distribution is harm for plant to absorb water and nitric nitrogen, so it will be better to reduce the film hole diameter in the agriculture production. The result provided the proof for the sustainable development of facilities agriculture and evaluating the effect of nitrogen on environment.

• Periodical: Advanced Materials Research (Volumes 538-541)
• Pages: 141-145
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.538-541.141
• Online since: June 2012
• Authors: Hai Xia Wu, Dong Juan Cheng, Li Jia Wang, Liu Liang
• Keywords: Facilities, Film Hole Diameter, Film Hole Irrigation, Soil Water and Nitric Nitrogen, Transport and Distribution

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