Fertilizer
For plants, sulphur (S) is essential for growth and development. Many forms of S exist in plants. These include: sulphate, the main source of S extracted from soil; amino acids important to plant health; and, other compounds needed for plant defence.
There is increasing interest in Canada and globally in improving nutrient management in floricultural operations. Typically, this involves the constant delivery of lower levels of nutrients during the crop cycle, resulting in the production of plants with quality acceptable to both growers and consumers.
Greenhouse owners are always looking for new ways to increase yields quickly, as well as their return on investment. But soil probiotics and microbial fertilizers are not new.
January 2017 – “The fact is that if we don’t learn how to recycle nutrients and water, we are doomed. We will start dying off from hunger. This is just one approach to prolong our existence on this planet.”
October 2016 – Silicon (Si) is the second most abundant element in the Earth’s crust next to oxygen . It is a major component of plant tissue. It is found in varying concentrations in virtually all living tissue, plants, animals and humans.
Sept. 2015 – This year, I have seen so many issues with calcium deficiency in bedding plants and vegetables that I decided to write about it in some detail.
According to fertilizer specialists Rob Rennie and Patrick Heffer,1 the industry has been facing a number of critical challenges, namely:
April 1, 2014, Southampton, U.K. – In the first study of its kind, research undertaken at the University of Southampton has cast significant doubt over the use of biochar to alleviate climate change.


My writing on the subject of nutritional deficiencies this month has been triggered by an e-mail I received from an experienced pepper grower.
Yes, it’s a new year, but will you be growing the same crops this year as you did in 2013?
There have been several articles in Greenhouse Canada over the past few years about “biochar” (October 2009, March 2012, etc).
I have known that many growers are afraid of calculations about fertilizer rates in parts per million.
Concerns over nutrient solutions leaching into local water sources could cost greenhouse producers dearly.
March 26, 2012, Houston, TX — Gardeners and professional growers who make their own charcoal soil additives, or biochar, should take care to heat their charcoal to at least 450 degrees Celsius to ensure that water and nutrients get to their plants, according to a new study by Rice University scientists.


As you sow, so shall you reap: this is an old adage but always very appropriate for the growers.
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