- Lead Grower - Stevensburg (VA) USA
- Assistant Crop Manager - Tasmania
- Post-Harvest Quality Manager - Europe
- Farm Operator - Kearny (NJ) USA
- Cultivation Manager - MI, USA
- Export Sales Manager (Europe Division)
- Africa Fruit Export Sales Manager
- Grower (TX)
- Young Plant Program Manager (WA)
- Plant Pathologist - Kearny (NJ) USA
Top 5 -yesterday
- Wholesum expanding its greenhouse acreage by fall 2021
- "New tabletop growing system requires much lower capital investment"
- "We are working to realize a stable presence in the United States"
- "Trianum successfully controls Fusarium in lettuce"
- AppHarvest completes deal with Rabo AgriFinance to fuel expansion
Top 5 -last week
Top 5 -last month
- South Africa: How an innovative smaller supplier helped to keep tomatoes on Shoprite shelves
- Hydroponic pepper farm expands in India
- Scientists discover how to alter colour and ripening rates of tomatoes
- 6 common greenhouse pests and how to manage them
- "We store CO2 from the outside air to make plants grow faster"
"pH should stand for plant health"
The pH measures the acidity or alkalinity of a liquid solution; in this case, the nutrient solution. If the solution is acidic, it has a lower pH and lots of hydrogen ions (H+) floating around. In a basic solution, there are lots of hydroxyl ions (OH-) floating around. Acid or base just describes which ion has a higher concentration in the solution. Water, which is considered neutral with a pH of 7.0, has equal amounts of hydrogen and hydroxyl ions. As far as plant health is concerned, these ions control what nutrients are still dissolved in the solution and which nutrients plant roots can absorb. Take a look at the chart below:
These are the essential nutrients; every one of these ions is required by plants in order for them to grow. They are absorbed in varying amounts depending on availability and the crop being grown. The chart visually expresses how pH affects the availability of each ion in the nutrient solution. The blue region is the ideal pH range for a hydroponic nutrient solution, but some fluctuations in pH are expected and not really a big deal so long as it is monitored and corrected on a regular basis. For most common greenhouse crops like tomatoes and lettuce, keep the pH just below 6.0 which is ideal to maximize uptake of every nutrient. Allowing the pH to fluctuate too high or low can result in some ions precipitating out of solution and becoming unavailable to the crop. For example, at a pH of 7.5, manganese, boron, and phosphorous are virtually unavailable to the crops which will lead to deficiencies if left unchecked.
From this point forward, pH will be an acronym for “plant Health.” This is one of the most important aspects of growing plants and cannot be overlooked without expecting an unhealthy crop and poor marketability. Since hydroponic growing systems often involve plant roots coming in contact with the nutrient solution regularly, if not constantly, the potential of hydrogen must be corrected to the appropriate range to maintain optimum “pH.” If we want to be healthy by maximizing our intake of nutrient-rich foods, we must make sure crops are rich in nutrients by maximizing their uptake.
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Other news in this sector:
- 2021-06-16 Study on using fish waste for aquaponic growth system
- 2021-06-09 Study on new generation of coated fertilizers to reduce leaching of mineral nutrients and N2O emissions
- 2021-06-03 Bluestim launched in UK to help plants cope with stress
- 2021-05-28 Improving traditional fertilizers to supportsoil-friendly farming
- 2021-05-20 Financial benefits of sourcing minerals from food waste
- 2021-05-13 US (TX): DFW Airport is turning passengers’ food into fertilizer to achieve carbon neutrality
- 2021-05-06 Study on differences in pollination efficiency among three bee species in blueberry greenhouse
- 2021-05-03 Study on uses of urban waste digestates on stimulation of hydroponically grown tomato
- 2021-05-03 Drinking liquid chlorophyll new internet trend
- 2021-04-27 Making fertilizers based on water and air
- 2021-04-20 Study on the effect of sewage sludge on a zucchini plantation
- 2021-04-02 Tree-fungus supplement could reduce fertilizer use in tomato crops
- 2021-03-15 Matching water soluble fertilizer to water quality
- 2021-03-11 Study on effect of biostimulants on yield and quality of cherry tomatoes
- 2021-03-08 Study on how fulvid acid brings positive effect on plant growth
- 2021-02-26 "Lower chemical use and higher productivity and Brix with vermicompost"
- 2021-02-17 VitalFluid's reactor feeds greenhouse crops literally at lightning speed
- 2021-02-09 Study on using digestate as fertilizer for tomato cultivation
- 2021-02-08 Kenyan entrepreneurs innovate with fertilizer made from mango and avocado
- 2021-01-29 Fermenting food waste to improve crop growth