Plants evaporate considerably less in winter than in summer, therefore the need for water is lower. Without adjustment of the substrate, there will be an increased risk of root problems. The choice for a more airy substrate in winter is therefore crucial, especially with short term cultures during which growing-power is important, the knowledge centre for substrates RHP advises.
Many factors in the root environment influence the functioning and growth of roots. The availability of oxygen and water, the temperature, the penetration resistance, pH and for example EC play a role. Less evaporation of water increases the risk of a lack of oxygen in a substrate. And in this way root problems in the culture increase. To avoid these problems, the knowledge centre for substrates RHP advises to use a more airy substrate in winter than in summer.
Another reason to choose for a more airy substrate in winter, is the difference in uptake of nutrients in summer and in winter. This already differs per crop, but also per season. Crops usually take up more nutrients and less water in winter than in summer. To realise an optimal root environment for a certain culture, substrate type, watering and composition of the nutrient solution have to be adjusted to each other.
RHP certified substrates guarantee an optimal start of the culture. The RHP quality mark guarantees that the substrate meets the right quality requirements for water and air content, pH and for example EC. It also guarantees that the substrate is pure and clean and that it can be used without risks for the culture. The RHP quality mark guarantees the quality of growing media in the chain, from raw materials production until processing and delivery at the company of the user. Since1963 RHP has been the European knowledge centre for substrates (growing media).
For more information:
RHP
Galgeweg 38
2691 MG 's-Gravenzande
The Netherlands
T +31 (0)174 62 03 60
F +31 (0)174 64 04 13
E info@rhp.nl
www.rhp.nl
Announcements
Job Offers
- Packing Supervisor
- Head Grower Greenhouse Canada
- Post Entry Quarantine Facility Manager
- Economic Policy Officer Agri-Tech Kentucky
- Licensing Manager North America
- Junior Sales Executive
- Fruit Breeder/Trait Discovery Scientist
- General Manager
- Regional Sales Manager – DACH Region
- Country Manager – Italy
"Tweeting Growers"
Top 5 -yesterday
Top 5 -last week
Top 5 -last month
Receive the daily newsletter in your email for free | Click here
Other news in this sector:
- 2023-01-31 Flower Sustainability Initiative gears up for more transparency and accountability
- 2023-01-30 Mimicking autumn in a lily greenhouse
- 2023-01-27 "Cutting-edge nanobubble technology sustainably increases violet production"
- 2023-01-18 "Better root development through air root pruning"
- 2023-01-18 Unraveling large and polyploidy genome of the Crucifer Orychophragmus violaceus in China, a potential oil crop
- 2023-01-17 Argentina: Ornamental meadow plants in the Institute of Floriculture
- 2023-01-16 Vietnam: Unusual rains affect flower production for Tet holiday
- 2023-01-13 US (MO): Missouri Extension reports results of lavender study
- 2023-01-12 A new Miconia (Melastomataceae) from Cusuco National Park, Honduras
- 2023-01-12 Water balance and hydrangea
- 2023-01-10 Illegal orchid trade threatens Nepal’s special orchids
- 2023-01-04 An efficient in vitro callogenesis from various explants of Passiflora vitifolia kunth: An important medicinal and ornamental plant
- 2023-01-04 Tulips growing well in AP's Chintapalli - first in south India
- 2022-12-23 Voltiris raises CHF 1.4M pre-seed investment round to help greenhouses save energy
- 2022-12-23 "This technology works well for all perishables but particularly on commodities such as lettuce, cut flowers"
- 2022-12-23 How aquaponics and fruit trees can be a good match
- 2022-12-23 Savor an unusual farm-to-fork experience in the Caribbean
- 2022-12-23 The most popular houseplants of the last 100 years from the better homes & gardens archives
- 2022-12-21 The man who was ‘by far the most significant breeder of rhododendrons of the 20th century’
- 2022-12-21 A blooming new business: two young entrepreneurs open Floral Room in Ohio City
