What is EC?
Electrical conductivity or “EC” is a measure of the focus of “total salt” in a nutrient solution (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 answer 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 received’t contribute to the EC of the answer as a end result 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 determined by the crop and variety grown, the physiological stage of plant improvement and the prevailing environmental conditions inside and outdoors the greenhouse.
Why is it necessary to watch EC?
The EC of the nutrient resolution affects the expansion and development of the plant. In the winter, larger EC is used because it limits water uptake. As a outcome, the cells within the plant don’t elongate or “grow” too much. They stay smaller and have thicker, stronger cell partitions. The crops then look darker, shorter and have smaller leaves. In this case, the plant puts relatively extra vitality into the formation of flowers and fruits (a production reaction). If the EC is too low underneath poor mild conditions (i.e. winter), the plant will produce an extreme amount of leaf growth and too little fruit progress, and will subsequently be over-nourished.
Conversely, excessive EC beneath excessive gentle conditions (summer) will prohibit water uptake too much and thus restrict the plant’s capacity to cool itself via transpiration. As a result, the crop might be careworn.
EC also affects yield and fruit high quality. In common, larger EC in the root zone environment results in decrease yields and smaller fruit dimension. This is as a end result of the cells within the fruit take up much less water, resulting in decrease contemporary weight. However, larger EC results in better fruit flavor. Therefore, a compromise have to be made between fruit quality, yield, and the dietary and reproductive development of the crop.
Therefore, it is essential to keep the right EC within the root zone surroundings (measured because the distinction between slab EC and drip EC.) The value of EC varies for every crop sort and time of year.
Monitoring EC within the slab
Monitoring EC in plates is a vital component of weekly vitamin monitoring and must be carried out daily. For a significant and correct evaluation, sampling should be performed in a quantity of consultant plates. Sampling is easy by merely pushing a syringe into the plate and withdrawing a small amount of nutrient solution (100 ml), which is then placed into the cup of the EC meter for direct studying. The EC values are calculated and plotted on a graph so that developments can be extra simply recognized.
Tips for accurate EC measurements with transportable meters
Calibrate the EC meter periodically utilizing a regular solution.
Check the battery status, low battery in transportable EC meters is usually the trigger of errors.
Take measurements on the same time each day in order that outcomes could be interpreted extra easily.
Store the meter in a cool, dry place.
Read more:
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 focus of “total salt” in a nutrient solution (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 carried out at 20oC.
The greater the concentration of “total salt” in the substrate, the upper the EC. Inorganic fertilizer ions corresponding to N, P, K, Ca, Mg, etc. are examples. Urea is an natural molecule and will not contribute to the EC of the answer 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 optimum plant progress is dependent upon the crop and variety grown, the physiological stage of plant improvement and the prevailing environmental situations inside and outdoors the greenhouse.
Why is it necessary to watch EC?
The EC of the nutrient answer impacts the growth and growth of the plant. In the winter, greater EC is used as a end result of it limits water uptake. As a result, the cells in the plant do not elongate or “grow” too much. They keep smaller and have thicker, stronger cell walls. The vegetation then look darker, shorter and have smaller leaves. In ไดอะแฟรม , the plant places comparatively extra energy into the formation of flowers and fruits (a manufacturing reaction). If the EC is too low beneath poor mild situations (i.e. winter), the plant will produce an extreme amount of leaf growth and too little fruit growth, and can subsequently be over-nourished.
Conversely, high EC under excessive light circumstances (summer) will restrict water uptake too much and thus restrict the plant’s capacity to cool itself through transpiration. As a outcome, the crop will be confused.
EC additionally affects yield and fruit quality. In general, greater EC within the root zone setting results in lower yields and smaller fruit measurement. This is as a end result of the cells in the fruit absorb less water, leading to decrease fresh weight. However, เกจวัดแรงดัน leads to better fruit taste. Therefore, a compromise must be made between fruit high quality, yield, and the dietary and reproductive growth of the crop.
Therefore, it is essential to maintain the right EC within the root zone setting (measured because the distinction between slab EC and drip EC.) The worth of EC varies for each crop type and time of 12 months.
Monitoring EC in the slab
Monitoring EC in plates is an important element of weekly diet monitoring and must be carried out daily. For a significant and correct evaluation, sampling must be carried out in multiple consultant plates. Sampling is easy by merely pushing a syringe into the plate and withdrawing a small amount of nutrient resolution (100 ml), which is then placed into the cup of the EC meter for direct reading. The EC values are calculated and plotted on a graph so that tendencies may be extra easily recognized.
Tips for accurate EC measurements with transportable meters
Calibrate the EC meter periodically using a regular resolution.
Check the battery status, low battery in transportable EC meters is commonly the cause of errors.
Take measurements at the same time each day so that results can be interpreted more 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?