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|Wednesday, September 23rd, 2009|
|Monday, April 28th, 2008|
Hey! It's been a little while since there was any activity in this community so I thought I might attempt to restart things a little bit with a question. Has anyone here had any experience working for or with the NRCS
? I like what I've heard and read about them but haven't really had any experience dealing with them directly outside of using some of their resources. I've thought about applying to work for them sometime after I finish up school next year, as well, even going as far as looking at a couple openings they have in Arizona where I live. I actually almost pursued an internship with them this summer, as well, but I make more money at my current job and need it to pay for school so I decided I would have to pass up pursuing the opportunity. Anyway, I'd love some feedback on other people's experiences with the NRCS outside of things like using their soil survey manuals and whatnot. Any responses are appreciated!
|Tuesday, May 23rd, 2006|
|Saturday, May 20th, 2006|
|Wednesday, May 3rd, 2006|
I'm a research lab technician working for the USDA at the University of Maine. I've been working there for 3 years this September. Our lab is participating in a national NMIN project otherwise known as Nitrogen Mineralization Project. We sampled 10 different soils last year for Total N including KCl extracts, Nitrification Potentials and now we are moving onto the molecular portion of our study. I'm currently extracting genomic DNA from various soils of different texture classes and enoying it thoroughly.
Because I have a background in marine science, I find that many of the techniques used in soil science are similar in other fields. I hope to apply many of the skills I've acquired as a lab tech for the past few years to graduate studies in astrobiology. I'd love to hear from other folks who are conducting molecular work right now - especially on Ammonia Oxidizing communities.
|Friday, April 28th, 2006|
OD versus DOM in soil water extracts
I'd like to discuss the problem of correlation between OD in different wavelenghts (465, 300 etc nm) and DOM (mg Corg/L) in soil water extracts. Now I'm working with data of my incubation experiment (soil+different organic amendments) and I'm trying to find the best way to correlate these parameters. If somebody has an experience in this field - please, comment.
P.S. My LJ is in Russian, but you're always welcome to reply here or via email icpaes_at_gmail_dot_com.
|Friday, January 27th, 2006|
Any Soil Science Bloggers?
I am searching for blogs that post information related to soil science, hopefully on a regular basis, hopefully with a feed
Similar to mine
, I suppose. No matter, I'm here now. Current Mood: nerdy
|Friday, December 30th, 2005|
I'm not a soil scientist, but I am taking some undergrad
courses (!) in soil science and am really interested in everything to do with soil, but mostly from a social perspective. bla bla bla.
Anyway, I added this community to my friends list a long time ago and forgot since there were no updates until today. I was going to wait until next semester to ask my prof a couple of soil questions, but i might as well ask you guys.
1. I read that one can steralize soil in a microwave oven, but it can cause pH changes. I am wondering what kind of pH changes, and if they are significant. I'm also curious how this happens.
2. My mother has taken interest in soil science and I would like to find her a text book of somthing like it that i can get her. I find that all of the soil texts that I have come across are way too wordy and 5000 pages long. I am looking for a book that explains everything...or the basics... in detail sans the assumption of a reader that can't fill in the gaps on their own and needs a million analogies to explain simple processes. Any suggestions?
Hi, I am not a doctor, but I am a soil scientist. I have been with the USDA for 18 years and mapped soils in 4 states. I am currently a Resource Soil Scientist in Mississippi. I would be glad to share what I know. I don't no everything about soil, but I do have some years of experience.
It has been a while since anyone has posted in here. I hope the community is not dead! Current Mood: crazy
|Tuesday, May 24th, 2005|
Does anyone here know anything about diminishing nutrient-holding capacity of farm soils as they lose their organic layers? I was reading a book on inorganic nitrogen fertilizers (Enriching The Earth
by Vaclav Smil) which mentioned that inorganic fertilizers don't replenish the organic layer (renowned, as I understand it, for its relative nutrient holding capacity). I also started soil sampling in Indiana and Illinois (a heavily fertilized region) this month and have noticed quite a few soils that seem to lack organic layers (though I may be wrong). And my boss and his boss are crop science guys so they don't seem to know too much about soil. I guess that's why they hired me. Current Mood: curious
|Monday, April 18th, 2005|
Woohoo! I got a summer internship soil sampling on farms throughout Indiana and Illinois! Current Mood: excited
|Thursday, December 16th, 2004|
I represent a group of scientists from Russia.
We modeled the processes to explain the phenomena of "non-solubilizing" volume of water in soils, which explains the increase of ion concentration in soil solution after the contact with soil. The well-known electrical double layer formation on soil particles cannot explain all the effects of non-solubilizing soil volume. The change in anion concentration in soil water extract with the time after soil saturation was studied in laboratory experiments on soil samples from Alfisol and Histosol from Yachroma valley, Dmitrov region, Moscow area, Russia, as well as from artificial organic growing media and Mollisol from Kuban area, Krasnodar region, Russia. We found that "non-solubilizing" soilvolume increases with the increase in pH, but decreases after air-drying/rewetting of soil and with the increase in salt concentration in soil solution. The conducted experiments have shown that the non-solubilizing soil volume effects can be explained by the presence of organo-mineral gel covering
all the surfaces on soil particles and by changing of the structure of this gel under the influence of
different soil factors.
|Thursday, December 9th, 2004|
|Saturday, December 4th, 2004|
Here's something that I thought people who aren't particularly familiar with soil science might enjoy, the textural triangle:
This is a tool used to determine, by feel, what sort of soil one is dealing with, and if you know about physical characteristics of sand, silt and clay, then you'll have a better idea of how to utilize the soil. It's sort of a layperson thing, I think.
If anyone would like to offer any more input, I'd appreciate it.
|Thursday, October 21st, 2004|
Did you know that all 50 states have state soils? Check out your state soil here
. Current Mood: enthralled
|Friday, August 20th, 2004|
Does anyone here have a job that requires soil knowledge? And, if so, what are you doing, in general, what are you doing with soil and what is your background in soil?
As an undergrad in soil science, I have yet to have a job that required that much soil knowledge. I've taken some soil samples but I didn't actually do any lab work, we just shipped the samples to Penn State. So I'm interested in what people do in more soil-intense jobs. Current Mood: curious
|Friday, July 2nd, 2004|
Geoarchaeology Graduate Programs?
This is a bit off topic; I apologize. I'd like to get some imput from geologists and soil scientists as well as archaeologists.
I'm looking for graduate programs in geoarchaeology. I'm particularly interested in micromorphology. I've looked through the slightly outdated list at the Archaeological Geology Division of the GSA
, and I've been looking through particular schools' web sites. Does anyone here have any recommendations? Not just in the US, but elsewhere as well?
And which would you recommend -- M.A. and then Ph.D, or going straight for a Ph.D?
Thanks for your comments!
* Crossposted * Current Mood: working
|Tuesday, June 15th, 2004|
Does anyone know of any soil testing kits that one can use on-site (rather than sending the soil sample to a lab)? My boss suggested today that I do some soil testing for the Pitt Zoo. Unfortunately, I've never done testing outside of a lab. Maybe I should see if the University of Pittsburgh or Carnegie Mellon has people who could help me out. I know that Penn State does. I'll probably e-mail someone there who was recommended to me by a professor at Purdue who does turf. Current Mood: pensive
|Friday, June 4th, 2004|
hi, everyone. i'm kat, a recent grad student (in English Lit) at the University of New Mexico. i'm involved in setting up a sustainable community on a piece of land in the Jemez Mountains. the land, called Sulphur Springs, is an ecological restoration project--it was strip mined by Mobil Oil for four years, for sulphur, of which it has large deposits still. it also has two or three hot springs (or one with two outlets plus another one, depending on how you look at it), of which two are sulphuric and one is not. there are steam wells running down the hillside from these springs as well.
unfortunately, the place is trashed. we're working hard to reclaim it, starting with the most obvious stuff, like getting rid of the trash and cleaning up the springs. but we also want to restore the soil and be able to garden up there. the natural topsoil has been stripped (by the mining operation that previously owned the site) throughout most of the useful (read: not vertical) acreage, and what's left is acidic and barren. in 20 years since the mining stopped, very little vegetation has returned to these areas.
does anyone here know about restoration like this? can anyone help us learn how to return this site to a more natural balance? we've been told that just dumping new topsoil on it wouldn't work; that we need to work to restore the balance of what we've got before we bring in new dirt, or plants (trees) won't be able to establish themselves deeply.
|Tuesday, May 25th, 2004|
Here's an interesting factoid that may spur interest and direct responses: a professor of mine used to work on surface charge in Los Alamos, New Mexico, with nuclear waste. From talking to him and reading some stuff elsewhere, I've found out that certain clays can more effectively "absorb" radiation. Anybody know anything about clays & radiation?