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Substrate handling influences air porosity of substrates
There are many factors that influence the air porosity of a substrate, such as how the substrate is handled and the depth of the container. But other factors, such as the time of year and temperature of the substrate solution influence the amount of air/oxygen plant roots need.
It is best to use a growing medium that offers the ideal air porosity for your watering technique as well as the requirements of the crop.
When using a bale breaker to fluff compressed substrate, it is necessary to minimize the time of mixing, add enough water to have the ideal water content for transplant or sowing and use the machine with slow turning ribbons or paddles.
The excessive fluffing or mixing destroys peat fibers and aggregates creating fine particles, which reduces air porosity and drainage and the medium dries out slowly.
Read more at PRO-MIX (Jose Chen Lopez)
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Other news in this sector:
- 2022-06-17 Studies on the effect of bio-inoculants and gibberellic acid on vegetative growth of African marigold
- 2022-06-13 Estonia: Supply chain challenges aside, demand for peat is skyrocketing
- 2022-06-13 Dutch scale-up presents new lineup of growing substrates
- 2022-06-09 "Jiffy coco growing media matches South Africa's diverse crop range"
- 2022-05-11 Smithers-Oasis Launches OASIS TerraBrick floral media
- 2022-05-10 Sustainable alternatives require authoritative proof, not marketing jargon
- 2022-04-22 "Many retailers no longer want to have any peat on the shelf in the long term"
- 2022-04-14 New grower guide for Ellepots by A.M.A.
- 2022-04-06 Diverting spent greenhouse growing media away from landfill into sustainable solutions
- 2022-04-05 Major research effort to save future of European peatlands
- 2022-04-01 The International Peatland Society speaks on Ukraine
- 2022-04-01 Tesco set to go peat-free on UK-grown bedding plants
- 2022-03-29 North American coir demand keeps on growing
- 2022-03-28 Anthura opts for a more sustainable substrate
- 2022-03-18 "It's essential to reconsider how we extract peat"
- 2022-03-09 "Alternatives to peat available, but none can replace peat on their own"
- 2022-03-08 Irish politician calls on government to reassess rejection of peat
- 2022-03-04 UK: Government urged to take faster measures against peat use
- 2022-03-02 UK: Research reveals impact of horticulture peat use on climate
- 2022-03-02 The use of peat in substrates