spad

美 [spæd] 　英 [spæd]

• 網(wǎng)絡(luò)陸路公共交通委員會；葉綠素含量；葉綠素相對含量

詞形變化

復(fù)數(shù)：spads  

英漢解釋

n.	1. a dangerous incident in railroad travel in which a train passes a red signal

例句

The size, angle spad and the brightness of the center of the synchrotron radiation light sources are very important to the users.

同步輻射光源的尺寸、散角和中心亮度是裝置的重要參數(shù)。

Water stress inhibits rice's absorption of nitrogen, thus rice's leaf SPAD value decreases.

水分脅迫抑制了水稻氮素的吸收，從而降低水稻葉片SPAD值。

The SPAD - 502 chlorophyll meter appears promising for rapid, on-farm analysis of crop nitrogen status.

葉綠素儀（SPAD-502）的出現(xiàn)使通過無損傷的田間速測對作物進(jìn)行氮營養(yǎng)診斷成為可能。

In addition, leaf SPAD values were parabolically related with protein and starch accumulation in grains.

葉片SPAD值與籽粒蛋白質(zhì)和淀粉積累量均呈二次拋物線關(guān)系。

Object: This paper was proposed to study using SPAD for cotton plant N nutrition diagnosis.

目的：本研究采用SPAD儀進(jìn)行棉花氮素營養(yǎng)診斷和氮肥推薦。

Effect of Nitrogen on SPAD and Photosynthesis Rate of Different Leaves of Winter Wheat at Grain Filling Stage

施氮對灌漿期冬小麥不同葉片SPAD值及光合速率的影響

The Relationships between SPAD Readings and the Contents of Chlorophyll and Nitrogen in Strawberry Leaves

草莓葉片葉綠素含量、含氮量與SPAD值間的關(guān)系

Primary Study on Application of SPAD Value to Estimate Chlorophyll and Nitrogen Content in Wheat Leaves

應(yīng)用SPAD值預(yù)測小麥葉片葉綠素和氮含量的初步研究

A Study on Relation between SPAD Value, Chlorophyll and Nitrogen Content in Cotton

SPAD值與棉花葉綠素和含氮量關(guān)系的研究

SPAD Value of Cotton Leaves on Main Stem and Nitrogen Diagnosis for Cotton Growth

棉花主莖葉SPAD值與氮素營養(yǎng)診斷研究