- Production Manager
- Assistant Professor - Controlled Environments Entomologist
- Technical Development Specialist | Horticulture | France
- Director of Business Development | Middle East | Agtech
- Farm/Production Manager; Berlin (m/w/d)
- Trader Asian Market
- Avocado Growing Manager - Kenya
- Operations Accountant
- Sales Manager for Nordic countries (H/F)
- Senior Breeder
Top 5 -yesterday
- What is the status of tomato brown rugose fruit virus in Europe?
- “Our ToBRFV-resistant variety has been preferred by our producers in wide areas since 2020"
- 2022 Year Overview: 10 stories on greenhouse expansion
- "Greek producers, who also purchase their plants from Spanish nurseries, have reported the same quality issue in strawberry plants as Spanish producers"
- New horticultural lighting technical requirements launched
Top 5 -last week
Top 5 -last month
- Zambia: "We produce 5,000 units of lettuce per week, per tunnel, year-round"
- UK growers stop planting and put nurseries on sale amidst energy crisis and labor shortage
- "You can't grow on water without lights"
- "High-tech farmer AppHarvest is running out of money"
- German family company switches from tomato cultivation to hydroponic lettuce
Combining shading products; how and why?
Combining shading products provides the opportunity to shade according to light intensity over the course of a year. Crops coming out of a dark winter period are often exposed to strong solar radiation in February. Usually this is still too early to apply a product such as ReduSol because it removes too much light on cloudy days.
A few years ago we did some trials with a combination of ReduHeat and ReduSol during a shading season. ReduHeat was applied to the greenhouse roof in February and provided the crops with the initial protection against the bright sun yet it still allowed sufficient light to enter the greenhouse. A few months later a thin layer of ReduSol was applied over the ReduHeat to protect the crop during the warm sunny summer days.
ReduHeat has the positive characteristic that it allows the majority of the PAR light to enter while reflecting heat radiation (IR). The application of a thin layer of ReduSol over the ReduHeat doesn’t alter this property, but it does lower the entire shading ability of ReduHeat (see graph). The sun (UV light) and rain gradually wear away the thin layer of ReduSol but they have little effect on the ReduHeat coating underneath. As a result a layer of protection still remains for any warms days that follow in the late summer months of August and September.
This strategy is very effective for plants. As summer approaches, the plants receive more and more protection and still enough light during the season to develop. Another advantage is that there is less need to use artificial lighting on cloudy spring days because enough light enters the greenhouse.
It is possible to combine all the ReduSystems coatings made by Mardenkro, with ReduSol always as the second layer (first ReduSol and then another coating on top is of little use). All products are removed at once with the same cleaning agent, ReduClean. In addition, we advise growers not to combine products from different manufacturers because this interferes with their removal.
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Other news in this sector:
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