Method for determining plant fertilization amount by detecting fertilization solution and ec value in soil
A fertilization amount and soil technology, applied in fertilization methods, fertilization devices, applications, etc., can solve problems such as large errors and lack of technical parameters of root soil EC value, so as to improve utilization efficiency, reduce field management time, and reduce soil and environmental pollution
Active Publication Date: 2017-05-03
SHENYANG YUANDA INTELLIGENT AGRI
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Problems solved by technology
Its shortcoming is that it lacks the technical parameter of root soil EC value, and the error in the data calculation process is relatively large.
Method used
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Embodiment 1
[0031] In this embodiment, corn is planted in the same soil medium, the fertilization solution and the corn root are respectively inserted into the EC sensor, and other auxiliary sensors are placed at the corresponding positions. Within a certain range of temperature, tension and pH, the EC value in the fertilization solution and the soil is used as the calculated fertilization amount. The index can achieve the purpose of direct dialogue with the amount of fertilizer applied to the root system. In a period of time, a conventional intelligent drip irrigation system sensor is used to record a set of data at an interval of 600 seconds, and the number of sensor records is n. The controller of the intelligent drip irrigation system sums the values detected immediately and converts them through a proportional constant. The difference is the total amount of fertilizer applied by each dripper during that time period. In the range of a certain temperature (18-28°C), tension 0.00-0.85...
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The invention relates to the field of precise irrigation to determine the amount of fertilization, in particular to a method for determining the amount of fertilization of plants by detecting the EC value of fertilization solution and soil. The method obtains the EC value of the fertilization solution and the soil in real time by using the EC sensor, converts the EC value into the corresponding fertilizer amount by using the respective proportional constants, and determines the fertilization amount by the difference between the two data. The present invention uses two EC sensors, and with the assistance of temperature, tension, and pH sensors, performs real-time signal feedback on the fertilization solution and soil EC values, and finally calculates the amount of fertilization through proportional constant conversion, and then can give a reasonable Fertilization program. The invention is beneficial to the intelligent drip irrigation system to accurately control the amount of fertilization, greatly improve the utilization efficiency of fertilizer and water, and improve the yield and quality of crops.
Description
technical field [0001] The invention relates to the field of precise irrigation to determine the amount of fertilization, in particular to a method for determining the amount of fertilization of plants by detecting the EC value of fertilization solution and soil. Background technique [0002] The realization of precision irrigation and fertigation technology by accurately determining the amount of fertilizer applied began with the introduction of drip irrigation technology from Mexico in 1974. On the basis of introducing and assimilating foreign advanced technology, many domestic scientific research institutes and enterprises have carried out relevant experimental research and obtained a lot of results and experience, but most of the research focuses on academic aspects and seldom applies to the field. [0003] The Chinese invention patent application (publication number CN103918528A) provides an intelligent control method and device for precise irrigation and fertilization....
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IPC IPC(8): A01C21/00
Inventor 李振才宋宇实张玉光池海
Owner SHENYANG YUANDA INTELLIGENT AGRI