1) leaf area mete
叶面积仪
1.
In order to measure leaf area rapidly,nondestructively and accurately,the hand-held leaf area meter that based on the ARM9 has been designed in this paper.
为了快速、精确、无损地测量叶面积,设计了一种基于ARM9的便携式叶面积仪。
2) leaf surface meter
叶面仪
3) specific leaf area
比叶面积
1.
Relation between specific leaf areas and leaf nutritent contents of plants growing on slopelands with different farming-abandoned periods in the Loess Plateau;
黄土高原不同退耕年限坡地植物比叶面积与养分含量的关系
2.
Photosynthesis in relation to leaf nitrogen,phosphorus and specific leaf area of seedlings and saplings in tropical montane rain forest of Hainan Island,South China;
海南岛热带山地雨林幼苗幼树光合与叶氮、叶磷及比叶面积的关系
3.
Concentrations of PAHs in leaves of six dominant species in the Pearl River Delta of South China were determined with gas chromatography and mass spectrometry(GC-MS),and synchronously leaf-lipid contents,leaf areas,specific leaf areas(SLA) were measured.
应用气相色谱-质谱联用方法测定了珠江三角洲地区6种主要树种叶片多环芳烃(PAHs)的含量,并对相应的叶脂含量、叶面积、比叶面积进行了测定,探讨了叶片PAHs含量特征和种间差异的影响因素。
4) leaf area
叶面积
1.
The leaf area index measurement of Drepanostachyum ludianense;
小蓬竹的叶面积指数测定
2.
Effects of fertilizing and sowing amounts on the increase of leaf area and the accumulation of dry matter of Elymus sibirlius L.cv.Duoye;
施肥量和播种量对当年播种的多叶老芒麦叶面积增长和干物质积累的影响
3.
Modeling of the leaf age and leaf area per plant in winter barley;
冬大麦叶龄与单株叶面积模拟的研究
5) leaf area
叶片面积
1.
Measurement of plant leaf area;
植物叶片面积的测定方法
2.
Research on measurement of realistic planting leaf area based on machine vision;
基于机器视觉的现实叶片面积测量方法的研究
3.
A new method for leaf area measurement based on the algorithm of image characteristic value was studied in this research.
应用扫描图像RGB三原色灰度值分离理论,根据植物叶片扫描图像像素点的分布特征,选用蓝色灰度值作为特征值,以扫描图像灰度中间值127作为叶面积图像与背景图像灰度值的判读指标,通过叶片像素点的分布比例计算叶片面积。
6) Flag leaf area
旗叶面积
补充资料：叶面肥料
分子式：
CAS号：
性质：直接喷施在植物叶片上供叶片直接吸收的肥料。其优点是：(1)供给养分的速度很快，能及时补救植物对某些养分的供应短缺；(2)养分利用率高，特别是微量养分；(3)可与农药一起喷施。缺点是：(1)肥效短暂；(2)氮磷钾主要养分若单靠叶面施肥，喷施量太大，多耗劳力；(3)喷施叶面肥料的作业受气候条件限制。所以叶面施肥只是土壤施肥的一种补充。配制叶面肥料要选择那些溶解度大、盐度数小的肥料盐或螯合物。
CAS号：
性质：直接喷施在植物叶片上供叶片直接吸收的肥料。其优点是：(1)供给养分的速度很快，能及时补救植物对某些养分的供应短缺；(2)养分利用率高，特别是微量养分；(3)可与农药一起喷施。缺点是：(1)肥效短暂；(2)氮磷钾主要养分若单靠叶面施肥，喷施量太大，多耗劳力；(3)喷施叶面肥料的作业受气候条件限制。所以叶面施肥只是土壤施肥的一种补充。配制叶面肥料要选择那些溶解度大、盐度数小的肥料盐或螯合物。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条