Portable multiway crop leaf nitrogen nutrient index nondestructive monitoring device

A technology of leaf nitrogen and nutrient indicators, applied in real-time monitoring devices, portable and non-destructive fields, to achieve the effect of ensuring reliability and stability, high monitoring accuracy, and convenient field monitoring

Inactive Publication Date: 2007-08-22
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to overcome the defects of existing monitoring devices, and develop a portable multi-channel non-destructive monitoring device for nitrogen nutrition in

Method used

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  • Portable multiway crop leaf nitrogen nutrient index nondestructive monitoring device
  • Portable multiway crop leaf nitrogen nutrient index nondestructive monitoring device
  • Portable multiway crop leaf nitrogen nutrient index nondestructive monitoring device

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Experimental program
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Embodiment Construction

[0036] (1) field application and operation of the device of the present invention

[0037] 1. Field assembly

[0038] First, connect and fix the main unit 11 with the adjustable telescopic support rod 10 of the bracket through the joint, and then connect the spectral signal acquisition assembly 9 with the angle adjuster 21 on the bracket through the joint; connect the spectral signal acquisition assembly 9 with the signal connection line and the signal line access port 13 on the host computer 11; adjust the length of the adjustable telescopic support rod 10 according to the height of field crops and monitoring requirements to meet the monitoring field of view, that is, the size requirements of the detection area 12; adjust according to the operator's operation needs For the angle of the angle adjuster 21 , place the randomly equipped level ruler on the top surface of the spectral signal acquisition assembly 9 , and adjust the level with the spirit level 14 on the main body she...

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Abstract

The invention relates to a lossless testing device for nitrogen nutritive index of crop leaves based on canopy reflection spectrum. It belongs to technology field of crop production, which is specially used in online detecting and precious fertilizing guidance of crop field production. It is mainly composed of bracket, spectrum signal collection and host computer. Spectrum signal collection adopts design of 4 waveband and 8 channels. Hardware system is composed of analog signals conditioning module, A/D transfer module, chip module, memory module, display module, keyboard module, communication module and power management module. Software system is programmed by C51 chip language. Detection of nitrogen content, nitrogen accumulation and leaf area index of canopy not only ensures high detecting precision, but also provides three data indexes of different facets to analyze nitrogen nutritive level of crop, which guarantees reliability and stability of detecting results. It can be applied in field operation, online lossless detecting, field online manage and guidance for agricultural production personnel.

Description

1. Technical field [0001] The invention relates to a portable nondestructive and real-time monitoring device for nitrogen nutrition indicators of crop (rice and wheat) leaves, belongs to the technical field of crop production, and is specially used for real-time monitoring and precise fertilization management of crop field production. 2. Background technology [0002] The non-destructive monitoring of crop nitrogen nutrition indicators is one of the important technical supports of precision agriculture. Its purpose is to grasp the growth status of crops in real time, release monitoring diagnosis and forecast in time, guide the quantitative management and precise input of nitrogen fertilizer, and predict the yield and total yield of crops. It provides important basis and reference. [0003] Nitrogen is the most important element among the six macroelements necessary for crop growth, and is an essential element for the composition of chloroplasts and proteins in crops. The la...

Claims

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Application Information

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IPC IPC(8): G01N21/27G01N33/00G06F17/00
Inventor 曹卫星徐志刚朱艳焦学磊田永超姚霞戴廷波
Owner NANJING AGRICULTURAL UNIVERSITY
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