Actual plant uptake of nutrients may vary between 5-10% of total applied fertilizers. only one researcher reported his success in replacing soil fertilization with trunk injection of grape and mango (Shaban, 2009). however, his research was carried out on one year old mango seedlings and 2-3 years old grape trees.
Do you think that this technique will be enough to supply all plant needs as it grows older? and what is the suitable EC and pH of the injected nutrient solution?
I have found many commercial companies dealing with injecting micronutrients and systematic pesticides but not macro nutrients.
looking forward for your opinions and sharing your experience.
Please have a look at this useful ResearchGate link and PDF attachment.
https://www.researchgate.net/publication/277668220_Advances_in_Citrus_Nutrition
check this links the articles maybe help you
http://joa.isa-arbor.com/request.asp?JournalID=1&ArticleID=2467&Type=2.
Chapter Advances in Citrus Nutrition
I do not think that the injection of fertilizer in the trunk of the tree will replace the soil additive to fertilizer, but it can be complementary to it, and depends on the degree of efficiency of the process on the type of crop and the nature of the trunk of the tree. In Iraq, for example, has recently spread the phenomenon of injecting pesticides in date palm trunks to combat Batrachedra Spp. The results were very efficient, giving an optimistic effect on the results of adding fertilizer to the tree trunks.
Yes, this has worked in some species, but the response of plants may vary depending on the species, the type of bark, the age of the plant, etc.
To my knowledge, this technique was successful in young trees but no published data on old grown ones. it will very interesting to carry out research on this point. I believe it involves many factors in addition to the composition of the nutrient solution.
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