(1) the upper margin appears neat with a "gilded" look, and necrotic tissue is generally absent. The upper leaves of Zhou Ranbian are small, and the blade portion near the growing point looks like a "parachute" due to tightness. This condition is often caused by excessive fertilization, leading to high soil solution concentration and salt accumulation in the leaves.
( 2 ) Ammonia damage: When roots are removed, they may appear rusted and the root tips become blunt. The edges or veins of the leaves remain green for a while before drying out, with a clear boundary between healthy and affected areas. If uncomposted chicken manure is applied before planting, it can release large amounts of ammonia gas in a closed greenhouse, which can cause ammonia toxicity to the seedlings.
( 3 ) When the main root is over-fertilized, the core leaves may show signs of rot at their edges. Prevention includes using properly decomposed chicken manure, avoiding excessive fertilizer application, and keeping the fertilizer away from the roots to prevent direct contact.
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Understanding these symptoms and causes is crucial for effective crop management. Proper fertilization practices and careful handling of organic materials like chicken manure can significantly reduce the risk of plant damage. It's important to monitor the health of your plants regularly and adjust your care techniques accordingly. By maintaining a balanced approach to nutrition and environmental conditions, you can ensure healthier growth and better yields. Always make sure to follow best practices when applying fertilizers and composts, and consider consulting agricultural experts if you're unsure about the right methods for your specific crops. Taking these steps can help prevent common issues and promote a more sustainable and productive farming environment.
Analog ORP Sensor
Analog Orp sensors and analog Orp electrodes are important and critical sensing components for measuring Orp data.Selecting the correct ORP Sensor/electrode is crucial to obtaining the best measurement results.
ORP, also known as oxidation-reduction potential, represents the oxidation-reduction ability of water, and the unit is mV. When the ORP sensor reads a negative number, this means that the substance being measured is a reducing agent, and when the reading is positive, it means that it is measuring an oxidizing agent. The reading of ORP will reflect the degree of pollution or disinfection of water, and it is an important indicator of water quality. Although it cannot independently reflect the quality of water, it can reflect the ecological environment of water bodies in combination with other water quality indicators.
If the ORP value is low, it indicates that the content of reducing substances or organic pollutants in the wastewater treatment system is high, the concentration of dissolved oxygen is low, and the reducing environment is dominant.
If the ORP value is high, it indicates that the concentration of organic pollutants in the wastewater is low, the concentration of dissolved oxygen or oxidizing substances is high, and the oxidation environment is dominant.
Daruifuno's analog ORP sensor has two types of flat platinum and circular platinum, and the measurement range is also different. Customers can choose according to their needs.The analog ORP Electrode is a double salt bridge design with Ag/Cl reference electrode. We also have glass material and plastic shell packaging models.
Analog ORP electrodes cannot transmit signals by themselves and need to be equipped with a transmitter. Our online pH ORP controllers can be connected to analog ORP sensors to achieve more display, control and output functions. We can also customize BNC connectors.
The main applications of ORP sensors include: chlorine and disinfection, cooling towers, swimming pools, water treatment, poultry processing, pulp bleaching, etc.
Analog Orp Sensor
Suzhou Delfino Environmental Technology Co., Ltd. , https://www.daruifuno.com