What is EC?

Electrical conductivity or “EC” is a measure of the concentration of “total salt” in a nutrient answer (drip, plate or drain).
It is expressed as milliSiemens per linear centimeter (mS/cm) or microSiemens per linear centimeter (mS/cm), where 1mS = 1000µS. The conductivity of a given resolution varies with temperature, so most nutrient answer analyses are performed at 20oC.
The greater the concentration of “total salt” within the substrate, the higher the EC. Inorganic fertilizer ions similar to N, P, K, Ca, Mg, and so forth. are examples. Urea is an organic molecule and will not contribute to the EC of the solution as a end result of it does not conduct electricity like calcium (Ca) ions or nitrates. Nitrogen (NO3-N) ions can.
Ec in crops

The EC required for optimal plant development is dependent upon the crop and selection grown, the physiological stage of plant improvement and the prevailing environmental circumstances inside and outside the greenhouse.
Why is it important to observe EC?

The EC of the nutrient solution affects the growth and development of the plant. In the winter, greater EC is used as a result of it limits water uptake. As a end result, the cells in the plant don’t elongate or “grow” too much. They keep smaller and have thicker, stronger cell partitions. The plants then look darker, shorter and have smaller leaves. In this case, the plant places comparatively extra energy into the formation of flowers and fruits (a manufacturing reaction). If the EC is merely too low underneath poor gentle circumstances (i.e. winter), the plant will produce too much leaf development and too little fruit progress, and can due to this fact be over-nourished.
Conversely, excessive EC under excessive gentle conditions (summer) will limit water uptake too much and thus restrict the plant’s capability to cool itself through transpiration. As a result, the crop shall be stressed.
EC also impacts yield and fruit high quality. In common, greater EC in the root zone environment leads to lower yields and smaller fruit size. This is because the cells within the fruit take up much less water, leading to lower fresh weight. However, higher EC results in higher fruit taste. Therefore, a compromise should be made between fruit quality, yield, and the dietary and reproductive improvement of the crop.
Therefore, it could be very important maintain the correct EC within the root zone setting (measured as the difference between slab EC and drip EC.) The value of EC varies for every crop kind and time of year.
Monitoring EC in the slab

Monitoring EC in plates is a vital part of weekly diet monitoring and ought to be carried out day by day. For a significant and accurate assessment, sampling must be performed in multiple consultant plates. digital pressure gauge is simple by merely pushing a syringe into the plate and withdrawing a small quantity of nutrient resolution (100 ml), which is then positioned into the cup of the EC meter for direct reading. The EC values are calculated and plotted on a graph in order that developments may be extra easily recognized.
Tips for accurate EC measurements with moveable meters

Calibrate the EC meter periodically using a standard answer.
Check the battery standing, low battery in transportable EC meters is often the trigger of errors.
Take measurements on the similar time every day so that outcomes can be interpreted extra simply.
Store the meter in a cool, dry place.
Read extra:
Conductivity: How to convert mS/cm to uS/cm

Difference between conductivity(EC) and TDS

What is residual chlorine?

What is turbidity?
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What is EC?

Electrical conductivity or “EC” is a measure of the concentration of “total salt” in a nutrient resolution (drip, plate or drain).
It is expressed as milliSiemens per linear centimeter (mS/cm) or microSiemens per linear centimeter (mS/cm), where 1mS = 1000µS. The conductivity of a given answer varies with temperature, so most nutrient resolution analyses are performed at 20oC.
The greater the focus of “total salt” within the substrate, the upper the EC. Inorganic fertilizer ions corresponding to N, P, K, Ca, Mg, etc. are examples. Urea is an organic molecule and will not contribute to the EC of the answer as a outcome of it doesn’t conduct electrical energy like calcium (Ca) ions or nitrates. Nitrogen (NO3-N) ions can.
Ec in crops

The EC required for optimum plant growth is dependent upon the crop and variety grown, the physiological stage of plant development and the prevailing environmental situations inside and outdoors the greenhouse.
Why is it important to observe EC?

The EC of the nutrient solution affects the growth and growth of the plant. In the winter, larger EC is used as a outcome of it limits water uptake. As a end result, the cells in the plant do not elongate or “grow” too much. They stay smaller and have thicker, stronger cell partitions. The vegetation then look darker, shorter and have smaller leaves. In this case, the plant puts comparatively more power into the formation of flowers and fruits (a manufacturing reaction). If the EC is simply too low beneath poor mild situations (i.e. winter), the plant will produce too much leaf progress and too little fruit growth, and will due to this fact be over-nourished.
Conversely, high EC beneath excessive gentle circumstances (summer) will prohibit water uptake too much and thus limit the plant’s ability to chill itself through transpiration. As a result, the crop shall be careworn.
EC also affects yield and fruit quality. In general, greater EC in the root zone environment leads to decrease yields and smaller fruit dimension. This is because the cells within the fruit take up less water, resulting in lower contemporary weight. However, larger EC leads to better fruit flavor. Therefore, ไดอะแฟรม ซีล must be made between fruit high quality, yield, and the nutritional and reproductive development of the crop.
Therefore, it is essential to maintain the right EC within the root zone surroundings (measured as the difference between slab EC and drip EC.) The worth of EC varies for each crop kind and time of 12 months.
Monitoring EC within the slab

Monitoring EC in plates is an important part of weekly diet monitoring and must be carried out daily. For a meaningful and correct evaluation, sampling must be carried out in multiple consultant plates. Sampling is straightforward by simply pushing a syringe into the plate and withdrawing a small amount of nutrient solution (100 ml), which is then positioned into the cup of the EC meter for direct studying. The EC values are calculated and plotted on a graph so that tendencies could be extra simply recognized.
Tips for correct EC measurements with moveable meters

Calibrate the EC meter periodically using a normal answer.
Check the battery status, low battery in moveable EC meters is usually the cause of errors.
Take measurements on the same time every day so that results can be interpreted more simply.
Store the meter in a cool, dry place.
Read extra:
Conductivity: How to transform mS/cm to uS/cm

Difference between conductivity(EC) and TDS

What is residual chlorine?

What is turbidity?