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Determination method for miscanthus-plant-leaf dry matter

A technology of plant leaves and measurement methods, which is applied to measurement devices, material analysis by optical means, instruments, etc., can solve the problems of crops being destructive, time-consuming, difficult to popularize in a large area, etc. simple effect

Inactive Publication Date: 2016-11-16
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is not only time-consuming, laborious, and poor in real-time performance, but also destructive to crops, and it is difficult to popularize it in a large area in production practice.

Method used

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  • Determination method for miscanthus-plant-leaf dry matter
  • Determination method for miscanthus-plant-leaf dry matter
  • Determination method for miscanthus-plant-leaf dry matter

Examples

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Embodiment 1

[0034] Embodiment 1, a kind of assay method of miscanthus leaf dry matter, carries out following steps successively:

[0035] 1), collecting the leaves of Miscanth to be tested;

[0036] 2) Scan Miscanthus leaves in the near-infrared spectral band of 400nm-2500nm to obtain the reflected light spectrum at the following 23 characteristic wavelengths: 486nm, 554nm, 624nm, 676nm, 694nm, 714nm, 772nm, 912nm, 958nm , 1098nm, 1322nm, 1392nm, 1432nm, 1520nm, 1642nm, 1870nm, 1900nm, 2038nm, 2122nm, 2214nm, 2274nm, 2316nm and 2404nm;

[0037] 3), the above-mentioned step 2) obtained data is substituted into the following dry matter content calculation formula, thereby obtain the dry matter content of the Miscanthus plant leaf to be measured;

[0038] Y 干物重 =47.319473-4.052λ 486 -709λ 554+ 6.251λ 624 -14.251λ 676 +9.659λ 694 -14.988λ 714 +36.145λ 772 +28.185λ 912 -18.528λ 958 -2.62λ 1098 -62.589λ 1322 -38.958λ 1392 +33.745λ 1432 -28.239λ 1520 -38.184λ 1642 -45.284λ 1870...

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Abstract

The invention discloses a method for measuring the dry matter of Miscanthus leaves, which comprises the following steps in sequence: 1) collecting the Miscanths leaves to be measured; Internal scanning, thereby obtaining the reflected light spectrum at the following 23 characteristic wavelengths; 3), the data obtained in the above step 2) is substituted into the dry matter content calculation formula, thereby obtaining the dry matter content of the Miscanthus leaves to be measured. By adopting the invention, the dry matter content of the Miscanth plant leaf can be detected rapidly without damage, so as to speed up the measurement speed and reduce the measurement cost.

Description

technical field [0001] The invention relates to a method for measuring dry matter of miscanthus plant leaves. Background technique [0002] Miscanthus has been listed as an important biomass energy crop in the world. Its leaves are the main photosynthetic organ. The leaves mainly include carbohydrates, proteins, lipids and various mineral elements. The accumulation of dry matter is the key to the net photosynthesis of miscanthus. An important symbol that directly affects the biomass of miscanthus. The method of measuring the dry weight of leaves is mainly to obtain the fresh weight of the crop, and then measure the dry weight after drying. This method is not only time-consuming, laborious, and poor in real-time performance, but also destructive to crops, and it is difficult to popularize it in a large area in production practice. In recent years, near-infrared spectroscopy has been widely used in the determination of plant physiology and ecology. This study uses plant nea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/359
CPCG01N21/359
Inventor 金晓丽陈晓玲石春海
Owner ZHEJIANG UNIV
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