Jihua Wang
8 Papers
11 Citations
Jihua Wang is an academic researcher. The author has contributed to research in topics: Canopy & Leaf area index. The author has an hindex of 2, co-authored 8 publications.
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Papers
Variable-rate nitrogen application algorithm based on canopy reflected spectrum and its influence on wheat
Hongxia Liang,Chunjiang Zhao,Wenjiang Huang,Liangyun Liu,Jihua Wang,Youhua Ma +5 more
- 20 Jan 2005
TL;DR: In this paper, the relationship between vegetation index (OSAVI) and nitrogen content was used to determine the amount of nitrogen fertilizer recommended for variable rate management in precision agriculture. But, it didn't increase crop yield and grain protein content significantly and did not decrease the variety of 1000grain weight, compared to traditional rate application.
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Study on grain quality forecasting method and indicators by using hyperspectral data in wheat
Wenjiang Huang,Jihua Wang,Liangyun Liu,Zhijie Wang,Changwei Tan,Xiaoyu Song,Jingdi Wang +6 more
- 20 Jan 2005
TL;DR: In this paper, the influence of cultivars and environment factors on grain quality were studied, the effective factors were cultivars, irrigation, fertilization, et al. field experiments were conducted to examine the influence factors of cultivar, nitrogen application and irrigation on grain protein content, gluten content and grain hardness in th ree winter wheat cultivars under four levels of nitrogen and irrigation treatments.
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Patent
Stress state and quality diagnostic instrument
Jihua Wang,Liangyun Liu,Chunjiang Zhao,Wenjiang Huang,Wengang Zheng,Gang Sun +5 more
- 02 Nov 2005
TL;DR: In this article, an instrument for measuring the stress state and protein quality of the crop, which utilizes the reflecting rate of the three discrete wavelength points of crop canopy to estimate the indexes and is able to rapidly diagnose and monitor the growing state and evaluate the protein quality.
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Extracting canopy vertical distribution information by canopy-reflected spectrum in winter wheat
Jihua Wang,Chunjiang Zhao,Wenjiang Huang,Liangyun Liu,Zhijie Wang +4 more
- 20 Jan 2005
TL;DR: In this paper, more comprehensive parameters such as chlorophyll index (CI), projective CHIp, Nitrogen index (NI), and projective Nitrogen Index (NIp) have been developed to describe the dynamic growth information for foliage vertical layers by studying their vertical distribution characteristics along canopy and their spectral reflectance.
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Detection of clusters and outlying nodes in spatial networks
Jiaogen Zhou,Chunjiang Zhao,Jihua Wang,La Qi,Wenjiang Huang +4 more
- 31 Oct 2008
TL;DR: This paper proposed clustering algorithm and outlying node detection algorithm for spatial road network analysis, which demonstrated that two algorithms are very efficient and effective in achieving reliable and reasonable clusters.
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