A new mathematical model for detecting the contents of chlorophyll, nitrogen and water of plants at the same time was established. Combined with the theory of spectroscopy, a portable meter for detecting the contents of chlorophyll, nitrogen and water in crop leaves was developed, which could avoid the error caused by different measuring time and different measuring location on the leaves when the three measuring parameters were accomplished by different instruments. The measurement result could give a better suggestion to precision fertilization and irrigation. The developed meter was composed of NIR (near infrared) LED (light emitting diode), interference filter, photodetector and microprocessor system.
参考文献
相似文献
引证文献
引用本文
韩书庆,于渤,孙明,黄文江,刘良云,孙刚.便携式叶绿素、氮素、水分一体化测定仪设计[J].农业机械学报,2009,40(Z1):256-259. a Portable Meter for Detecting Chlorophyll, Nitrogen and Water Contents of Plants[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(Z1):256-259.