一、 用途：

原CCM-200plus便攜式葉綠素儀升級版，內嵌GPS模塊，可以即時測量植物葉片的葉綠素相對含量或“綠色程度”，從而可以了解植物真實的硝基需求量并且幫助您了解土壤硝基的缺乏程度或是否過多地施加了氮肥，廣泛應用于氮肥管理，除草劑應用，研究葉衰老，環境脅迫等研究。營養缺乏，環境脅迫，某些除草劑以及生長（遮光）過程中光照環境的差異都可能導致葉綠素含量發生變化。 葉綠素含量可用于管理營養優化計劃，既可提高作物產量又有助于保護環境。除草劑損害的測試可以表明需要改變除草劑的選擇或施用方法。 為了保持良好的雜草控制，同時對作物健康的影響降低。

測定葉綠素含量的實驗室方法既費時又對樣品具有破壞性。 通常，必須將樣品分離，在溶劑中研磨，然后在分光光度計中進行分析。 一次只能測量一次樣品，從而無法監測整個生長周期中葉綠素含量的趨勢。 CCM-200通過自動平均計算相對葉綠素含量，提供無損快速測量。 它減少了耗時且昂貴的化學測試的需要。CCM-200plus兼顧葉綠素透過率和葉片厚度。

三、應用案例

Trent T., Hendrickson J., Harwell M.C.

(2017) A rapid, cost-effective screening

tool for measuring Chl-a in water

samples. Lake and Reservoir

Management, Pages 1-6, Published

online: 11 Jul 2017,

美國佛羅里達州環境保護局和圣約翰斯河水管理區的研究人員使用CCM-200plus葉綠素含量儀對藻華進行了定量。

“We believe this CCM provides a useful screening tool forrapid measurement of Chl-a concentrations in the lower St.Johns River and has the potential for being an algal bloom screening tool elsewhere. However, we emphasize that calibrations are required for applying our method in different water bodies.”

參考文獻:

氮管理---玉米:

Mashego S, Petja B.M., Moshi M.E. Mailula A.N., Shaker P., Lekalakala R.G. , Mushadu W.G., and Dikgwatlhe W.G. (2012) MAIZE GRAIN YIELD COMPARISON UNDER CONVENTIONAL AND SITE-SPECIFIC NITROGEN MANAGEMENT IN A DRYLAND FARMING SYSTEM BSc.

Agric; Current MSc. Agric Soil Science at the University of Limpopo Work at the Limpopo Dept. of Agriculture, Directorate: Research Services

TORRES-DORANTE L., R. PAREDES-MELESIO R., A. LINK A., and J. LAMMEL J. (2015) A methodology to develop algorithms that predict nitrogen fertilizer needs in maize based on chlorophyll measurements: a case study in Central Mexico. The Journal of Agricultural Science, Cambridge University Press, DOI: 

氮管理---水稻

Saberioon M.M., Soom M.A.M. (2014) A Review of Optical Methods for Assessing Nitrogen Contents during Rice Growth. American Society of Agricultural and Biological Engineer.

氮管理---土豆

Lazarevi? B., Poljak M., ?osi? T., Horvat T., Kara?ija T. (2014) Evaluation of Soil and Plant Nitrogen Tests in Potato (Solanum tuberosum L.) Production. Agriculturae Conspectus Scientificus,

Vol.79 O?ujak 2014. 

氮管理---葡萄園

D'Attilio D. (2014) Optimizing nitrogen fertilization practices under intensive vineyard cover cropping floor management systems. Virginia Tech,

氮管理---楓樹

Van den Berg A. K., Perkins D. (2004) Evaluation of a portable chlorophyll meter to estimate chlorophyll and nitrogen contents in sugar maple (Acer saccharum Marsh.) leaves, Forest Ecology and Management 200 (2004) 113–117

氮管理---梨

GHASEMI M., ARZANI K., YADOLLAHI A., GHASEMI S., KHORRAMI S.S. (2011) Estimate of Leaf Chlorophyll and Nitrogen Content in Asian Pear (Pyrus serotina Rehd.) by CCM-200. Available online at notulaebiologicae.roNotulae Scientia Biologicae Print ISSN 2067-3205; Electronic 2067-3264 Not Sci Biol, 2011, 3(1):91-94

鐵、硫

Christensen R. C., Hopkins B. G., Jolley V.D., Olson K. M., Haskell C. M.,  Chariton N. J. & Webb B. L. (2012) ELEMENTAL SULFUR IMPREGNATED WITH IRON AS A FERTILIZER SOURCE FOR KENTUCKY BLUEGRASS, Journal of Plant Nutrition DOI: 10.1080/01904167.2012.706684

鉬添加

Biscaro G.A.; Goulart Junior S.A.R.; Soratto R.P.; Freitas Júnior N.A.F.; Motomiya A.V.A.; Filho G.C.C. (2009) Molybdenum applied to seeds and side dressing nitrogen on irrigated common bean in cerrado soil. Ciência e Agrotecnologia Print version ISSN 1413-7054 Ciênc. agrotec. vol.33 no.5 Lavras Sept./Oct. 200 CIÊNCIAS AGRÁRIAS