Announcements

Job offersmore »



Tweeting Growers

Top 5 - yesterday

Top 5 - last week

Top 5 - last month

Exchange ratesmore »




How much acid is needed to reduce water alkalinity?

To limit the upward climb of your growing medium's pH, acid may need to be injected into your water to reduce excess alkalinity. Water alkalinity is a measure of the carbonates and bicarbonates in the water and acts just like limestone in the growing medium.

The higher the alkalinity, the more “limestone” that is applied at each irrigation and the faster the pH of your growing medium increases. So, at what point is it necessary to inject acid into a water source to reduce alkalinity?

Why is the growing medium's pH rising?
As plants uptake fertilizer, the roots release acids (hydrogen ions) and bases (hydroxyl ions) to maintain a neutral charge within the plant's roots. This is why fertilizers are labelled with a potential acidity or basicity that predicts how the plant will react with the fertilizer.

When the plant cannot generate enough acid from fertilizer uptake to neutralize the water alkalinity in the growing medium, this causes the growing medium's pH to climb. Therefore, acid injection is needed to neutralize excess water alkalinity or “limestone” in the water.

Read more at the PRO-MIX website

Publication date: 1/10/2017

 


 

Other news in this sector:

4/26/2018 "Vietnam needs organic fertilizers for clean agriculture"
4/25/2018 Nutritional monitoring in lettuce
4/12/2018 "‘Extreme bacteria’ could be game-changer for organic vegetable production"
4/12/2018 DCM Micro-Mix Minigran RHP approved
4/10/2018 Water and nutrients in fertigation in soil-grown vegetable crops
3/26/2018 Fertinnowa develops water book
3/19/2018 PHL-Australia project explores soil management to increase vegetable production
3/2/2018 Magnesium deficiency of hydroponic and container grown basil
2/23/2018 US: Four scientists join Inocucor Scientific Advisory Board
1/29/2018 Local raw material provides alternative to coconut products
1/25/2018 Portugal: Asfertglobal wins Green Project Award 2017
1/23/2018 PRO-MIX is launched in France
1/19/2018 US (NC): Yara opens new warehouse facility in Wilmington
1/18/2018 UK: Amendments to AHDB Nutrient Management Guide (RB209)
1/18/2018 US (CA): WISErg raises $19.2 million to build California plant
1/9/2018 Video: Why your controlled release fertilizer didn't work as expected
12/21/2017 Levity CropScience appoints American distributor
12/7/2017 Use of biostimulants to increase in the UK, says survey
12/6/2017 "UK fertiliser industry faces twin challenges of being in the EU and leaving it"
12/5/2017 Chinese growers show interest in Italian expertise in biostimulants