19 March 2013 Research on the degradation of tropical arable land soil: Part II. The distribution of soil nutrients in eastern part of Hainan Island
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Proceedings Volume 8762, PIAGENG 2013: Intelligent Information, Control, and Communication Technology for Agricultural Engineering; 87620J (2013) https://doi.org/10.1117/12.2019696
Event: Third International Conference on Photonics and Image in Agriculture Engineering (PIAGENG 2013), 2013, Sanya, China
Abstract
Research on the temporal and spatial distribution of soil nutrients in tropical arable land is very important to promote the tropical sustainable agriculture development. Take the Eastern part of Hainan as research area, applying GIS spatial analysis technique, analyzing the temporal and spatial variation of soil N, P and K contents in arable land. The results indicate that the contents of soil N, P and K were 0.28%, 0.20% and 1.75% respectively in 2005. The concentrations of total N and P in arable land soil increased significantly from 1980s to 2005. The variances in contents of soil nutrients were closely related to the application of chemical fertilizers in recent years, and the uneven distribution of soil nutrient contents was a reflection of fertilizer application in research area. Fertilization can be planned based on the distribution of soil nutrients and the spatial analysis techniques, so as to sustain balance of soil nutrients contents.
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Dengfeng Wang, Dengfeng Wang, Zhiyuan Wei, Zhiyuan Wei, Zhiping Qi, Zhiping Qi, } "Research on the degradation of tropical arable land soil: Part II. The distribution of soil nutrients in eastern part of Hainan Island", Proc. SPIE 8762, PIAGENG 2013: Intelligent Information, Control, and Communication Technology for Agricultural Engineering, 87620J (19 March 2013); doi: 10.1117/12.2019696; https://doi.org/10.1117/12.2019696
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