Hand-held soil nutrient nondestructive measurement system based on near infrared spectrum

Abstract

The invention discloses a hand-held soil nutrient quick nondestructive measurement system. The system comprises a microprocessor, a liquid crystal display, a light source, a near infrared spectrum module, a keyboard, a data memory, a power supply and a Y-type optical fiber, wherein, the microprocessor is connected with the near infrared spectrum through a RS232 serial interface circuit; the power supply supplies electricity for the microprocessor, the liquid crystal display, the light source, the near infrared spectrum module, the keyboard and the data memory respectively; the tail end of the Y-type optical fiber is a spectrum acquisition probe, while the other two ends are connected with the light source and the near infrared spectrum module respectively. The system can measure the most main nutrient information of the soil, including nitrogent content, phosphorus content, kalium content and organic matter content. carrying out spectrum acquisition and processing through the near infrared spectrum module and the microprocessor, the system makes up the defect that the traditional large near infrared spectrometer can only be used indoors, and is not suitable for carrying in the field; and the whole device is less than 1kg in weight, is convenient for carrying, and can meet the requirement of quickly measuring the soil nutrient in the field.

Description

technical field [0001] The invention relates to a hand-held rapid and nondestructive measurement system for soil nutrient, which belongs to the field of agriculture and biological engineering. Background technique [0002] Soil nutrients are essential nutrients provided by the soil for plant growth. Mastering the distribution of nutrients in farmland soil is of great significance for guiding agricultural production. [0003] Digital agriculture is an important direction for the application of high technology in the field of agriculture and bioengineering, and it is also an important symbol of agricultural modernization. Mastering the nutrient information of farmland soil is one of the important and basic parts in digital agriculture. At present, the manual soil testing method traditionally adopted in our country is time-consuming and labor-intensive, and it is difficult to directly and quickly measure it in the field, which is no longer suitable for the requirements of agri...

AI Technical Summary

Problems solved by technology

However, this method also needs to collect soil samples back to the laboratory for detection, and cannot achieve rapid detection in the field.

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