I hope Monserrat has no problem with me posting this, if he does I will gladly take out the parts from his book.
I was reading Pons Book and I saw what they are putting on in several areas in Spain. I prefer Organic Fertilizers just as a personal choice and would like to be able to use similar formulas with readily available organic fertilizers for me. I was hoping for some input on what I had worked out, it may need some tweaking but I am feeling pretty good about it right now.
One thing is that he recommends is that you put manure in the field every year to maintain healthy soil, microbes and structure etc.
This is what they need in Mallorca, at his farm so it may not be what I need, and he states that foliage and soil analysis is needed to be sure. That being said it is a starting point for me.
According to what I have read with organics, blood meal typically needs 4-8 weeks to release N, bone meal needs 8-12 weeks and kelp can take anywhere from 2-6 weeks (i am not sure about this one). Since I believe I need more potassium with a heavier load of fruit, as I do for cucumbers, tomatoes and peppers, I am opting to try adding Potassium Chloride or Sulfate instead of the kelp meal. I have included different recipes as when I broke it down what they are doing in Mallorca, they are having trees 4 x 4 metres. In the pot of course is different so I will have to make adjustments over the course of time I am sure. Since either source of Potassium is fairly quick release I am also thinking to not put it in a dry mix and instead use smaller quantities and use it with the weekly fish fertilizer so I can get a more controlled application of potassium, although I will have to test it out and see how it works. For ones in the pots I will have to add mychroaziae sp. to make sure the materials can be broken down and re inoculated my in ground trees every other year or maybe never depending on how they look.
I am also thinking to only do one application of Lime a year and instead let the gypsum take its place as it is a faster acting calcium which I believe I also need as some varieties are getting black spots all over the fruit and leaves are showing deficiencies. I am hoping to send off some leaves for analysis and see if they fall in the ranges of what Pons recommends and what they found in Valencia, with these results I can better adjust my fertilizer and also see how effective my formula works. I did put in the full amount per year of a 2 x 2 metre tree and then broke that down into 3 seperate applications, the first month may change but not much else I don't think.
All comments/suggestions are welcome and encouraged please.
3 parts ammonia nitrate 34-0-0
25 parts calcium triple Calcium super phosphate 0-45-0
5 parts potassium chloride 0-0-60
Manure 25-30 t/ha 0.048 t/tree
48 KG per tree total
Ammonina Nitrate 150 kg /ha 0.24 KG/tree
Tripple super phosphate 800 kg /ha1.28 KG/tree
Potassium Sulfate 250 kg /ha0.40 KG/tree
1.92 KG per tree total
625 trees/hectare
Ammonina Nitrate 150 kg /ha 0.12 KG/tree
Tripple super phosphate 800 kg /ha0.64 KG/tree
Potassium Sulfate 250 kg /ha0.20 KG/tree
2 m x 2m 0.96 KG per tree total
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3 times a year, March, May, July
blood meal 12-0-0
bone meal 2-12-0
kelp meal 1-0-3
weekly foliar feed cal mag plus
weekly feed of fish fertilizer + Potassium chloride or sulfate.
Once a month add epsom salts 1 tbps per gallon with fish.
add 1 tbps per gallon Gypsum with dry feed
Blood Meal 0.552 KG/tree
Bone Meal4.800 KG/tree
Kelp Meal8.000 KG/tree
13.352 KG per tree total
625 trees/hectare
4 m x 4 m
Blood Meal 0.28 KG/tree
Bone Meal2.40 KG/tree
Kelp Meal4.00 KG/tree
2 m x 2m 6.68 KG per tree total
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Divide by 3 applications
Blood Meal 0.093 KG/tree
Bone Meal0.800 KG/tree
Kelp Meal1.333 KG/tree
2 m x 2m 2.226 KG per tree per application
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Blood Meal 0.28 KG/tree
Bone Meal2.40 KG/tree
potassium Sulfate0.20 KG/tree
2 m x 2m 2.88 KG per tree total
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Blood Meal 0.093 KG/tree
Bone Meal0.800 KG/tree
potassium Sulfate0.067 KG/tree
2 m x 2m 2.88 KG per tree per application