会议专题

Study on Relationship between Tobacco Canopy Spectra and LAI

N nutrition is one of the most important limitation factors for crop growth and yield. Precise and timely monitoring and detection of crop N nutrient conditions is necessary for improving the efficiency of N nutrition using and crop management, reducing environmental pollution caused by over nitrogen fertilizer application. In this paper the canopy reflectance spectra during the whole growth period on tobacco field plots treated with different nitrogen levels were periodically and continually measured. LAI of tobacco of several important growth periods was meanwhile measured. The results showed that tobacco canopy spectral reflectance of different growing periods changed regularly with the increase of nitrogen fertilizer application. The canopy spectral reflectance increased in 710~1000 nm, while decreased in 460~680 nm. There was high correlations between NDVI and LAI. The research supply theoretical foundation for tobacco N management.

Tobacco spectra LAI

Hongbo Qiao Weng Mei Yafei Yang Wang Yong Jishuai Zhang Yu Hua

College of information and management science, Henan agricultural university, P. R. China Sanmenxia Branch of Henan Tobacco Company, Sanmenxia, P. R. China

国际会议

The 4th IFIP International on Computer and Computing Technologies in Agriculture and the 4th Symposium on Development of Rural Information(第四届国际计算机及计算机技术在农业中的应用研讨会暨第四届中国农业信息化发展论坛 CCTA 2010)

南昌

英文

650-657

2010-10-22(万方平台首次上网日期,不代表论文的发表时间)