Posted: 14/07/2017 at 18:43
... For the benefit of all growers. As soon as a plant produces top growth of four to six leaves, check the PH of the soil, if a nitrogen lack is here, try a sprnkling of sulphate of amonia around the plant. I est my case.
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For the benefit of those who are not 'scientifically qualified' a PH test will not reveal a lack of nitrogen ... you need kit specific to nitrogen testing (also for potassium, potash etc) ... there are kits and equipment at a wide range of prices, from the cheap and cheerful on Amazon to equipment for the professional costing hundreds of pounds .