一、 用途：

原CCM-200plus便攜式葉綠素儀升級(jí)版，內(nèi)嵌GPS模塊，可以即時(shí)測(cè)量植物葉片的葉綠素相對(duì)含量或“綠色程度”，從而可以了解植物真實(shí)的硝基需求量并且?guī)椭私馔寥老趸娜狈Τ潭然蚴欠襁^多地施加了氮肥，廣泛應(yīng)用于氮肥管理，除草劑應(yīng)用，研究葉衰老，環(huán)境脅迫等研究。營(yíng)養(yǎng)缺乏，環(huán)境脅迫，某些除草劑以及生長(zhǎng)（遮光）過程中光照環(huán)境的差異都可能導(dǎo)致葉綠素含量發(fā)生變化。 葉綠素含量可用于管理營(yíng)養(yǎng)優(yōu)化計(jì)劃，既可提高作物產(chǎn)量又有助于保護(hù)環(huán)境。除草劑損害的測(cè)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(shí)對(duì)作物健康的影響降低。

測(cè)定葉綠素含量的實(shí)驗(yàn)室方法既費(fèi)時(shí)又對(duì)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(jì)中進(jìn)行分析。 一次只能測(cè)量一次樣品，從而無法監(jiān)測(cè)整個(gè)生長(zhǎng)周期中葉綠素含量的趨勢(shì)。 CCM-200通過自動(dòng)平均計(jì)算相對(duì)葉綠素含量，提供無損快速測(cè)量。 它減少了耗時(shí)且昂貴的化學(xué)測(cè)試的需要。CCM-200plus兼顧葉綠素透過率和葉片厚度。

三、應(yīng)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(guó)佛羅里達(dá)州環(huán)境保護(hù)局和圣約翰斯河水管理區(qū)的研究人員使用CCM-200plus葉綠素含量?jī)x對(duì)藻華進(jìn)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(xiàn):

氮管理---玉米:

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

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氮管理---水稻

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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

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氮管理---楓樹

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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

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