I am a bit of a sucker for food supplements: cod liver oil and raw cider vinegar are must-haves for me, but what about the plant equivalents? Many are used commercially, which helps to validate their efficacy in my eyes.
Growers do not whack on products that are expensive both in man hours and material costs if there are no tangible benefits. Yet, if you are an amateur, it is not always easy to identify whether or not tonics make a difference.
Alex Stevenson works for Dejex Supplies Ltd of Spalding. Dejex supplies a huge range of herbicides, fertilisers and more to thousands of commercial growers as well as a few ordinary gardeners like me. Alex specialises in the horticulture sector and is a...
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