Soft Rock Phosphate -- Request a quote from Fertilizer Brokerage today!

Soft Rock Phosphate

Online Quote Request Form for Soft Rock PhosphateSoft Rock Phosphate is an important phosphate source that is actually a byproduct from the old time hard rock mining. In order to increase the purity of the higher analysis of the hard rock, the soft rock was a clay impurity which was washed and then it was sent in this water through to a settling pond. So then it filled this settling pond up and so these are huge huge settling ponds and the surface dries out and the soft rock is skimmed off the top of the settling pond and then it can either be processed or sold as is.

Hard rock phosphate, in contrast, is mined just as it is and is a tri calcium phosphate, sometimes is has a little carbon. But it is extremely insoluble in the soil. It requires a hyperactive bacterial system and a tremendous amount of soil acidity in order to derive much benefit. Soft rock, on the other hand, is quite a bit more available. A lot of times we'll see availability showing up on the soil test within 1-2 years, even the first year if a soil's got some acidity.

There are a tremendous amount of trace minerals in soft rock phosphate and there's a certain electromagnetic energy or field with soft rock phosphate so that it's extremely sticky. If you get it wet, you can feel how sticky it is. This electromagnetism helps to hold calcium up in the root zone. So it's a real critical part of building the soil so that you can hold the calcium.

Soft rock is also a pretty good supplier of silicon, it has a decent amount of boron in it, and then a whole bunch of other trace minerals, about 60 trace minerals all together. And we find it to be an absolute critical ingredient in building soil phosphorus levels for organics. And any time the goal is quality, soft rock phosphate should be part of what is used to build and maintain soil phosphate levels.

We supply this from two sources. One source is from Idaho, and this is not a processed product so it's pretty much just skimmed off the settling pond and put into bulk hopper bottoms or tote bags. And we sell it by the semi load, so either a 25-ton semi load in bulk (or 22 tons), and if we can get a flatbed, 24 tons in tote bags. The tote bags are not standardized in their weights, but overall the semi load will be 22-24 tons.

We also sell a Florida soft rock phosphate. This has been granulated so that it makes it a little easier to work with. The granulated form can be used in a fertilizer spreader, but it is dusty, it's not a perfect pellet and it will coat the beater blades on the back of a spreader, so even though it is granulated you still eventually have to go back and clean those blades as you're spreading soft rock phosphate. Otherwise it just builds up and coats the blades.

The advantage of the granular, of course, is that it can be spread with a fertilizer spreader. The Idaho source needs to be spread with a lime spreader and even in that situation sometimes the soft rock will still bridge in the spreader and someone's going to have to knock down those bridges so you can get it to spread. It is a little cumbersome product. Another way it could be done is the powdered product that could be added to a liquid manure and then mixed in with the manure and then spread out as liquid as part of the manure, which is very good way to do that.

Soft rock phosphate, again, will hold the calcium, and that's really key if you want to build available calcium and also to build a soil that is capable of producing nutrient dense foods. So it's kind of a foundation point.

Soft rock phosphate is not recommended automatically, you need a soil test to determine if you need phosphates. Many soils, especially those with composted manure have excessive phosphates. And consequently soft rock phosphate is not recommended on those soils. So make sure that the soil is tested beforehand.

The Idaho soft rock has 8% carbon content, that gives it a nice chocolate brown color. The Florida source has less carbon but has a little higher analysis of phosphorus and calcium. So they're both good products, we like them equally. They both fit into a good biological program to grow quality.

Organic Soft Rock Phosphate Powder from Idaho

Download Analysis (PDF)

Organic Granular Soft Rock Phosphate from Florida

Download Analysis (PDF)

Download MSDS (PDF)

Sign Up

Receive alerts on availability of
products & price changes.

Updates

1/17/17

GOOD NEWS--Florida Soft Rock Phosphate (Calphos)

Our source for the Florida soft rock phosphate (Calphos) has had a lot of difficulties keeping up with the demand this past year due to weather, but they have informed me that at the moment they can process orders with very little lead time.

They are not so sure they can promise the same come Springtime, so if you were thinking of ordering some of that wonderful Florida soft rock from Calphos, please let me know & I will get you a delivered price. Just let me know how much you need & whether bulk or bag, powder or granular. Please include a zip code to where you would like it delivered and whether you need an end dump or hopper bottom trailer load.

Regards,

Gary

1/11/17

LIQUID FISH DISCOUNT 15% UNTIL JANUARY 31st, 2017!

Just wanted to remind all those interested in using Liquid Fish for Spring application that there is a discount of 15% on all DRAMM liquid fish products which expires on January 31st, 2017.

There is still time to place an order for this product but remember it must ship by the 31st for the discount to apply.

Read more ...