主要功能

實(shí)時非破壞測量植物葉片多酚和葉綠素含量、葉片表層類黃酮和花青素含量；

可通過多酚的測定評估植物氮的狀態(tài)。

測量參數(shù)

Chl：葉綠素指數(shù)

Flav：類黃酮指數(shù)

NBI：氮平衡指數(shù) Chl/Flav 比值

Anth：花青素指數(shù)

應(yīng)用領(lǐng)域

植物生理生態(tài)

觀賞園藝

果樹學(xué)

食品科學(xué)

植物病理

逆境生理

藥用植物

植物營養(yǎng)

遙感

茶學(xué)

主要技術(shù)參數(shù)

測量光源：5 個 LED : 1 個紫外光，1 個綠光，1 個紅光和 2 個近紅外光（NIR）

檢測器：硅光二極管

用戶界面：LCD 液晶屏，蜂鳴器

位置精度：＜2.5 m

選購指南

儀器配置：

主機(jī)一整套，已包含 GPS。

應(yīng)用案例

植物氮肥監(jiān)測 全新氮肥指標(biāo)-氮平衡指數(shù)NBI

氮平衡指數(shù)（NBI: Nitrogen Balance Index）是葉綠素（SFR）和類黃酮（FLAV）的比值：當(dāng)未發(fā)生氮肥脅迫時，植物生長健康，合成葉綠素較多，產(chǎn)生的多酚（類黃酮）較少；當(dāng)發(fā)生氮肥脅迫時，植物營養(yǎng)不平衡，產(chǎn)生的多酚（類黃酮）較多，生成葉綠素較少。傳統(tǒng)方法通過葉綠素判斷氮肥狀況，當(dāng)葉片葉綠素含量下降時（葉片變黃），說明植物缺失氮肥，在實(shí)際應(yīng)用中，該方法有一定的延遲效應(yīng)，葉綠素下降時幾天甚至十幾天前氮肥缺失的表現(xiàn)，即使此刻施肥，也會影響作物的終產(chǎn)量。而通過測量NBI值來評估氮肥狀況時，避免傳統(tǒng)方法中的延遲效應(yīng)，葉綠素和多酚（類黃酮）稍有變化，即可檢測出植物的氮肥狀況，及時快速進(jìn)行氮肥管理。

產(chǎn)地：法國 Force-A

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