What is the difference between ag lime and hydrated lime

This is made by treating burnt lime with water, and is used mainly in mortar and concrete. It is more expensive than agricultural lime. Widely but often incorrectly used on the North Coast, particularly in horticulture, dolomite is a naturally occurring rock containing calcium carbonate and magnesium carbonate. It is good for acid soils where supplies of calcium and magnesium are low, but if used constantly may cause a nutrient imbalance, because the mix is two parts calcium to one part magnesium , whereas the soil ratio should be around It is sold in granulated form and its NV is — Use magnesite and burnt magnesite if your acid soil already has enough calcium.

Wet liming materials are sometimes available at low prices. Their usefulness is determined by the NV and water content. You need to consider the extra costs of handling, freight and spreading.

These dusts can be good value but you need to check the analysis before you buy. Shells of oysters and other shellfish are mainly calcium carbonate, but the shell tends to be contaminated with sand and organic material and is usually too coarse to be effective in soil. Gypsum is classified by the Fertilizer Act as a liming material, but is not considered one in farming as it does not reduce soil acidity. It is used mainly to improve the structure of sodic clay soils, and these are not common on the North Coast.

You can compare the value of different liming materials by checking NV and fineness against spread cost. I still supplement regularly with a balanced liquid fertilizer usually and various combinations of fish emulsions I use both and This soil will easily go an entire, long grow season with almost no structural failure soil collapse or soil that breaks down and begins to hold too much water and would likely be structurally sound for a second year, but I do not reuse container soils.

Came across your comments while searching for anything about lime. A neighbor of mine told me that he puts lime in his yard to combat fleas. Ever hear such a thing? Thanks, BC. Blossom end rot in container grown tomatoes is a common problem, and more likely linked to water fluctuation than an absence of calcium. Calcium deficiency is possible, though unlikely since most commercial potting soils have lime added and most water contains at least some calcium.

I would recommend using dolomite lime if you are mixing your own soil, since it contains magnesium as well. I've stopped using lime in my own soil since my water is loaded with calcium, magnesium and other minerals. Al's soil recipe would be a great choice for container tomatoes, since it would definitely help you avoid over-watering and water-logged plants.

I'll be mixing up a cu. You could not walk through the yard without the fleas and mosquitos destroying your feet and legs. When the high humidity of summer kicked in they infested the house and moved in underneath the house so my foggers that i had using for WEEKS did not work. At the end of my wits I went to a bug removal expert who casually pointed out lime repels insects.

I bought a 40 lb bag of Agricultural lime and crawled under the house and laced it completely with lime then moved on to the yard. Having hardwood floors I lightly dusted the inside of the house, then vacated it for a coulple days.

When I came back there were no more fleas, mosquitos, or red ants in the yard, not a flea to be found in the home and to my surprise dozens of cockroaches lying dead everywhere on the hardwood floors.

The Lime attacks their bodies orifices drying and burning them to death. It's a hard clean-up inside but it was worth it, and cutting the grass spreading it around and removed the white powder on the grass. I hope this helps someone! I found the pulverized dolomitic lime but can't find agricultural lime.. Is this commonly available anywhere?

I used lime that I bought at home depot and that is generally used for plaster? I think lime is all the same. I asked this question on a different thread but thoyght id try here since i havent got an answer Is organic epsoma garden lime ok to use in the mix?

All lime is not the same. And you need to really be careful when adding Dolomite lime and K-Mag bc it has too high of a Ca to Mg ratio and you will have way too much Mg if you use it as your only source of Ca.

Also, in ag lime "additional chemicals vary depending on the mineral source and may include calcium oxide , magnesium oxide and magnesium carbonate " Wikipedia links in green. Folks, many of the questions asked here are easily answered with much more reliable information if you do your own research on Google as some of these replies are providing incomplete or inaccurate information.

You have the internet and all the information it contains at your fingertips. Put it to use for some research and you will have information that you can be much more confident about and you did it essentially on your own. I would never consider wikipedia to be a wholly reliable reference for anything. It's not a bad place to start to gather some basic data from which to engage in real research or as one place states, to settle a bet with your roomate!

No flipping way!! That anyone would suggest that as a substitute for the practical, experiential and in some cases, scientific knowledge base demonstrated in many of the GW forums is ridiculous. For those of us who may not know for sure, and are willing to learn, what exactly is it in those Wiki articles that is 'wrong'?

Getting information from more than 1 source can be a very good thing. However, it also, at times, can cause confusion. Most information on Wikipedia is annotated. When it isn't, there is a notice posted on the page. Even reliable, reputable sources can be wrong, an earnest person or reference realizes that fact and adjusts their attitude accordingly.

I use Wiki often, and along with other sources, will continue. That said, if they are indeed wrong on something, it would sure be good to know. A: A list of U. A: W e are aware of one company that makes food grade lime: Mississippi Lime www. If you have a question concerning lime, please email us or contact us at ext.

What are the differences between quicklime and hydrated lime, high calcium lime, and dolomitic lime? Magnesian quicklime -- derived from limestone containing 5 to 35 percent magnesium carbonate. Dolomitic quicklime -- derived from limestone containing 35 to 46 percent magnesium carbonate.

Depending upon the type of quicklime used and the hydrating conditions employed, the amount of water in chemical combination varies, as follows: High calcium hydrated lime -- high calcium quicklime produces a hydrated lime containing generally 72 to 74 percent calcium oxide and 23 to 24 percent chemically combined water.

Dolomitic hydrated lime normal -- under atmospheric hydrating conditions only the calcium oxide fraction of dolomitic quicklime hydrates, producing a hydrated lime of the following chemical composition: 46 to 48 percent calcium oxide, 33 to 34 percent magnesium oxide, and 15 to 17 percent chemically combined water. Dolomitic hydrated lime pressure -- this lime is produced from dolomitic quicklime under pressure, which results in hydrating all of the magnesium oxide as well as all of the calcium oxide, producing the following chemical composition: 40 to 42 percent calcium oxide, 29 to 30 percent magnesium oxide, and 25 to 27 percent chemically combined water.

Q: What are the physical forms of lime? A: Quicklime is commercially available in a number of sizes the following definitions are derived from ASTM Standard C51 : Large lump lime -- a maximum of eight inches in diameter.

Pulverized lime -- a typical size is substantially all passing a No. Pelletized lime — one-inch sized pellets or briquettes, molded from fines. Q: Is aglime the same as lime? Q: Do you have a listing of the specifications for lime in various industrial uses?