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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Timing irrigations with moisture sensors in hydroponics
After discussing the different types of off-the-shelf sensors for measuring moisture in hydroponics (1,2,3), we are now going to explore the practical use of these sensors to time irrigations within…
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The Chirp Sensor: A plug-and-play solution to moisture monitoring in hydroponics
If you want high yields in hydroponics, then you need to monitor moisture quite closely. Watering plants when they need it – and not on a timer – is critical…
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Five tips to succeed when doing Kratky hydroponics
Passive hydroponic growing has become very popular during the past 10 years as it has a very low starting cost and uses no electricity. However, growing without active nutrient circulation,…
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Practical use of ion selective electrodes in hydroponics
The achievement of adequate ion concentrations in nutrient solutions, media and plant tissue is key to success in hydroponics. It is therefore important to measure them, so that proper values…
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Inner leaf tipburn in hydroponic lettuce
The most common problem I get contacted for by hydroponic lettuce growers is the appearance of inner leaf tipburn within their plants. During the past 10 years I have consulted…
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The effect of Seaweed/Kelp extracts in plants
Few bio-stimulants are more popularly used than seaweed/kelp extracts. These are used by many growers to increase plant quality and yields, in particular, extracts from the Ascophyllum nodosum species are…
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Characterizing hydroponic stock nutrient solutions
I’ve written several articles in the past about how to characterize concentrated hydroponic nutrient solutions using simple yet highly accurate small scale methods. I have now released a video showing…
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