Hard water and coconut cultivation, the pH from friend to enemy

[BeachBass]

I literally threw myself headlong on some technical documentation of the coconut , the reason for this is due to the fact that looking at my plants I noticed while adhering to the table blocked nutrients , such as cal May, iron and zinc. Thinking and consulting and breaking balls to anyone on the international forum came to the conclusion that my problems so if you want to call them are due to the hardness of my water source , which in coconut and with the use of booster 20-21 pk can lead to various problems which exceeded levels of phosphorus and potassium levels of zinc iron calcium and magnesium are altered , in fact according to the table of nutrients it is distorted , taking me to levels of Ec wrong by half a point . Now read that to combat water hardness and allow the use according to the table using nitric acid instead of phosphoric although it is in bloom , and as we know should be corrected with the nitric acid in the vegetative and with the phosphoric acid in bloom. You can enlighten me about it ? or simply have said stop (the plants ) to the nutrients ? or should I install a reverse osmosis filter to the tap ? The coconut DOES NOT LOVE AT ALL hard waters

pH from 5.8 to 6.2 in coconut

source water ph 7.4 24.4 ° F water hardness 0.49 mS / cm



weed vibes

 

[McKush]

Hi BeachBass, your post is a bit of a tough read but if you are looking for votes, then put one in the RO camp from me. I have hardwater, I know a bit about it from my fishkeeping interests so in my experience, hard water is not not really your friend in most cases (some fish require hardwater though butmost don't like it.) Strip it all away with RO and build it back up like you want the water to be would be my recommendation, don't take bad water and try to chemically fix it. Strip it mechanically then put it back together chemically.

My other comment is that hardwater is great at buffering PH but sucks in your hot tub too

 

[dansbuds]

Your right in the fact that coco does NOT like hard water !!! RO should help alot of your problems but i doubt it will fix all . nutrients play a big part in coco problems too . sounds like you have a good handle on the cation differences ..... what nutes are you using ???

with hard water you shouldn't need calmag at all & maybe a mag only in late flower . cuz by then especially in hard water calcium will have built up in the coco that any more could be hazerdous as your finding out . canna coco nutes are blended to use with tap water ..... if you decide not to go the RO route .... i'd suggest the canna line at half strength . i use it with RO & have to suppliment a calmag but at low levels .

 

[BeachBass]

i use atami lines, and i have some purples edges over the young leaves, i have a lock of something for pk sure

 

[coxnox]

Hi,

i'm using canna cogr nutes with ugro coir, and get the same problem, i did use only phosphoric acid to the wall grow, and untill i did switch for the bloom nutes i didn't have any problem but since i switched for the bloom nutes i get salt build up in the subatrate even if i drain at 50%...and the ph of the drain was going down(5.0 when i feed at 6.2).

I did contact canna about that and they suggest me to change the phospho acid for a nitric acid and since then i don't have any salt build up in the substrate, even with only 20% drain.
Now last week i did add PK additives (little dose) and since then i have a new salt build up...
i think that peoples that have very hard water(the hardess of the water you can't mesure with your ec meter...you can have low ec and hard water, and can have high ec and soft water...hardness of the water is the CaCO3 see here) should ber very carefull with PK additives specially in coco.

 

[WonderWoman]

My tap water ph is over 8 and i'm running canna coco a+b zym rhizo with canna's own feedtable and haven't had any problems so far. Healthy green looking plants.

 

[BeachBass]

In this cycle i have used only RO water with a little calmag aptus every week


and i have changed the nutes with canna coco and canna boost canna pk but with atazyme..


The rO water is perfect for coco

View image in gallery​

 

[McKush]

sweet! good on you BB

 

[einsteinlady]

nice nug!

 

[dansbuds]

Glad to see you got it worked out .

nice buds by the way !!!!!