Growing Media
March 12, 2015 – This e-GRO Alert includes information on the detrimental effects of substrate compaction from stacking or nesting containers on top of each other prior to planting.
As we move deeper into fall, the light levels will decrease rapidly, which poses many issues for plant and fruit quality, parameters which must be maintained in order to maximize production.
In the summer, adjustments to the start and stop times of irrigation and the use of stable EC settings are required.
Maintaining a good nutrient balance in the rootzone can help avoid many common fruit quality disorders, such as blossom end rot (BER), blotchy ripening and micro-cracking.
In his third of four articles for Greenhouse Canada, Grodan crop consultant and young plant specialist Hans van Herk provides an insight into the world of high-tech tomato propagation
I’ve talked about this topic before, but interest continues to grow.
Looking at key processes to ensure consistent saturation of plugs and blocks to ensure crop is off to a good start

Late July and August is the time when rooted cuttings start arriving in greenhouses.
Working with less drain per cent allows you to steer the crop with fewer inputs of water, fertilizer and energy

Here we are in the month of February and bedding plant and ornamental production greenhouses are buzzing with activity. Plugs are arriving and being transplanted.
Everyone is now focused on preparing for the new crop, and for a clean start it is essential that the greenhouse is disinfected properly.
As I write, severe droughts are hitting most of the continental U.S. As well, sadly, extreme temperatures are causing loss of human life.
The climate conditions in the fall provide a vegetative impulse to the crop.
A steerable substrate with a focused irrigation strategy, combined with recycling of the drain water, can significantly help reduce input costs as well as enable compliance to environmental emission laws without affecting yield and quality.
During the warmer summer months, greenhouse plants are transpiring the most and the crop can be stressed due to high light and 24-hour temperatures.
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