The stability of metal chelates
When you get introduced to hydroponics and nutrient solution chemistry, one of the first concepts that you learn is chelation. A chelate is a molecule formed by a metallic ion…
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Six things to look for in a Hydroponic sensor data logging system
Data is key. It will help you obtain high yields and improve with each additional crop cycle. Having sensor measurements not only allows you to diagnose your crop at any…
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Nutrient availability and pH: Are those charts really accurate?
When growing plants, either in soil or hydroponically, we are interested in giving them the best possible conditions for nutrient absorption. If you have ever searched for information about plant…
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Understanding Calcium deficiency issues in plants
Calcium is one of the most difficult elements to properly supply to plants as its absorption is tightly linked to both chemical and environmental factors. It is very easy for…
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Disinfection of nutrient solutions in recirculating hydroponic systems
Plant growing systems that recirculate nutrients are more efficient in terms of fertilizer and water usage than their run-to-waste counter-parts. However, the constant recirculation of the nutrient solution creates a…
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Five common mistakes people make when formulating hydroponic nutrients
It is not very difficult to create a basic DIY hydroponic formulation; the raw salts are available at a very low cost, and the target concentrations for the different nutrients…
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Using VH400 sensors to build an automated irrigation setup
I have written several posts in the past about the measurement of water content in media, I have covered some very low cost and easy to use sensors that can…
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Practical aspects of carbon dioxide enrichment in hydroponics
Carbon is one of the most important nutrients a plant consumes as it the largest component of a plant’s dry weight. Plants get this carbon mostly from the atmosphere –…
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The cricket IoT board: A great way to create simple low-power remote sensing stations for hydroponics
When you monitor variables in a hydroponic plant where more than a few plants exist, it becomes important to be able to deploy a wide array of sensors quickly and…
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Can you grow large flowering plants like tomatoes using the Kratky method? (passive hydroponics)
I have previously shared some tips on how to grow successfully with the Kratky method in my blog before (1). This growing system, which was developed in the early 2000s,…
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