Advancing Eco Agriculture, Product Science

[Shcrews]

just got some biomin calcium, wondering what rates are people using for foliar application?

 

[jidoka]

What % Ca is it?

 

[Shcrews]

What % Ca is it?

i think the label said 5%

 

[Lightweight]

just got some biomin calcium, wondering what rates are people using for foliar application?

I was spraying everyday for awhile and I was using 1 ml. per gallon. When I was spraying once a week I used 7 ml. per gallon. So basically the idea for me was a total of 7 ml. over the course of the week and I'd just divvy it up equally depending on how many times I was going to spray and it was working great IMO.

 

[Lightweight]

Double post

 

[jidoka]

You could go up to 15 grams per gallon. It is just as good to use gypsum in the irrigation though until around flower. At that point the spray is effective

 

[slownickel]

I was spraying everyday for awhile and I was using 1 ml. per gallon. If I was only going to spray twice I'd use 3.5 ml. When I was spraying once a week I used 7 ml. per gallon. So basically the idea for me was a total of 7 ml. for each gallon over the course of the week. I'd just divvy it up equally depending on how many times I was going to spray and it was working great IMO.

Concentrations are everything when spraying Ca. Small quantities will do almost nothing. Imagine you should have 50,000 to 70,000 ppms in the leaves. The smaller the concentration (and it is very small) the less result you will have.

 

[calisun]

I've got the baicor calcium 5% and am doing a foliar spray this evening and am thinking of using 35mil per gallon. Slow have you found that a good rate with the baicor Ca? I was going to add some kelp to the mix also. Any compatibility problems?
In the past I used Cal 25 (calcium chloride) and follow it up the next day with powder fish protein nitrogen and have had good results. Hoping for even better using the baicor calcium instead of the Cal25.

 

[plantingplants]

I'm going to try 2 oz/gal accelerate foliar on half my hoop, and am figuring out how much to water with, too. Will post photos.

jidoka, what's your method of EC measurement? I found a graph that shows the difference between measurements. 2:1 di water:soil comes out much lower than SME (like soil labs use), for example.

 

[slownickel]

I've got the baicor calcium 5% and am doing a foliar spray this evening and am thinking of using 35mil per gallon. Slow have you found that a good rate with the baicor Ca? I was going to add some kelp to the mix also. Any compatibility problems?
In the past I used Cal 25 (calcium chloride) and follow it up the next day with powder fish protein nitrogen and have had good results. Hoping for even better using the baicor calcium instead of the Cal25.

We use as labelled. 1 oz/gal should not be a compatibility problem, depending on the kelp, should be ok.

Calcium chloride works well. How much were you using of it?

 

[calisun]

We use as labelled. 1 oz/gal should not be a compatibility problem, depending on the kelp, should be ok.

Calcium chloride works well. How much were you using of it?

1 tsp per gallon. The calcium25 comes as flakes.

 

[jidoka]

https://customhydronutrients.com/soil-test-direct-soil-ec-tester-hi98331-p-889.html?cPath=8_24

 

[reppin2c]

I can tell ya Ca25 doesn't bump Ca sap. I just tested my buddies spot and he's been doing Ca25 for a month. Had him double the holoCa. 1:10 Ca:K is acceptable in my book.

On a side note the soil that has the 80% Ca doesn't perform without the microbes. However the 65% Ca soil with all the other elements has that 6.4 PH and it shows.

 

[redlaser]

Hey! Howzit guys? Things are going pretty well over here. I burned a few plants because I accidentally made a soap spray stronger than I meant to. Fortunately I only sprayed 5 plants with it and they're recovering nicely. I'm happy with this run so far especially considering it's the first run in this old pineapple dirt. Here's a couple pics:

View attachment 417553

I think this one is about 5.5-6' tall and about as wide.
View attachment 417554

This plant I was hoping to get some opinions on. All the fan leaves off of one branch started going yellow. It seemed like it started in the middle and worked it's way up and then worked it's way down and now the yellowing is spreading to the rest of the plant. I thought maybe it was a iron deficiency, but my iron levels should be in range. I also figured it could be a borer beetle or something like that, but I couldn't find any damage along the stem or branches that would suggest that. So now I'm guessing it's a root pest of some kind. Does anybody else has an idea? Here's a progression of pics:

This was probable 4 days ago
View attachment 417555

I think I took this pic yesterday. The yellowing got worse.
View attachment 417556

Here's what the top leaves looked like a few days ago.
View attachment 417557

And some lower leaves from a couple days ago.
View attachment 417558

This was the other side of the plant a couple days ago. The yellowing has spread to it also as of today.
View attachment 417559

And the top leaves today on the side of the plant that was still green, but is now getting progressively yellow
View attachment 417560

I'm assuming this plant is a lost cause, but it would be cool to get some ideas if you guys have any so I hopefully I can stop it from happening to any other plants.

The yellowing of that plant, especially in whole sections or a side is most likely an injured or rotten root system or stalk. It could be animal or some mechanical damage, but insect damage/borers seems a lot more uncommon. It's usually something common.

I would not water that plant until the healthier parts wilt, if that is possible. It's water needs are easily cut in half or less in that condition

 

[slownickel]

I can tell ya Ca25 doesn't bump Ca sap. I just tested my buddies spot and he's been doing Ca25 for a month. Had him double the holoCa. 1:10 Ca:K is acceptable in my book.

On a side note the soil that has the 80% Ca doesn't perform without the microbes. However the 65% Ca soil with all the other elements has that 6.4 PH and it shows.

Microbes are essential regardless of % Ca.

What pH did you get to at 80% Ca? That may have a lot to do with it. A bunch of guys are at 6.4 - 6.6 and getting 85%+ Ca. More details please!

 

[jidoka]

K is the sap meter pH driver when using high Ca. You gotta take that leap of faith and really lower it to benefit from the Ca

I have never seen CaCl raise sap Ca

 

[jidoka]

But when you do really lower K you can also really lower no3 w/o fucking up the pH. And when you do that nothing but good follows

 

[reppin2c]

SN- What pH did you get to at 80% Ca? 6.2 on bottom and 6.1 on top.

Got a picture of 1 of the plants this morning with the top folded over like it was a sunflower. Tracking like a beast

Edit in 2 days he's gonna spray holoCa @6oz/gal

And I think most of that 80% soil Ca is carbonate, in the form of oyster shell. That doesn't really count.

I walked past a plant said "what's this one? Its in my soil huh? I'll bet ya it's pretty close?" Sap PH 6.4 and I haven't tested my full term yet. Fucking juniper midge makes any task unbearable.

 

[plantingplants]

Anyon using the ion meters to test soil?? No3 manual says you can test nitrate if you use 1:5 soil:water ratio. Testing soil no3 in the field? Fuck yea!

Thanks jidoka. Here is that chart:

 

[plantingplants]

So I tried out my K meter today. Two bottom leaves read 2100 and 2600, but two top leaves tested low, like 300 ppm. What's up with that?? You think it's sampling error? The only thing I noticed is that I got much less sap from the top leaves.