Відео

Thanks for reaching out, that's good to hear

Hello Mikaela, Thank you for reaching out and I'm happy to hear that the messages in this video resonated with you. The SKN is a group of retired/semi retired soil scientists. They are all volunteers the members who are present in this video are the ones put their hand up. Not all members participate in all of our activities. I completely agree that diversity is valuable. In the last few years, the SKN has made a deliberate choice to build positive relationships with female soil scientists, inviting them to workshops, meetings and fieldtrips with a view to membership on their retirement. We encourage female soil scientists as role models and mentors. Its hard to imagine yourself in a role if you can't see it. We aim to encourage women to take up and hopefully keep a career in soil science - and perhaps this may become a pathway to membership. NSW and the world needs more soil scientists! That being said, gender bias and gender balance in the SKN is something we are conscious of. This video is now several years old and since its publication two women have been accepted as SKN members (we now have 3 including myself). It is a fact that there are not very many retired female soil scientists with relevant experience in NSW. This is largely a reflection of gender bias among past agencies and policies which has led to low female representation among soil scientists. This video is about members speaking about why soil is important to them and why it it should be important to others. I really like your idea about a future video showcasing the diverse female voices and their soil related values. Thanks for the suggestion, but it is beyond the scope of our small group, perhaps a collaboration with others for the future. Best wishes Sally McInnes-Clarke NSW SKN

Hi Charles, those are pretty standard terms used in track and road design and construction. However, your suggestion is a good one and I will reach out to Peter and ask him to put something together

@@nswsoilknowledgenetwork2890 Thank you very much - it would be very helpful for people not in the trade.

Use Google.

Thanks Mo, that is so great to hear.

Hi M B, we are super glad and you are super welcome!

Thank you Maria that is good to hear and yes subtitles would be fantastic for all of our videos. I'll look into it.

Hello Gerry, parent material is a C horizon

@@nswsoilknowledgenetwork2890 not in our system.

@@gerrycoleman7290 that's interesting. In New South Wales, and Australia generally, soil profile description follows the method described in 'the yellow book' where C horizons are defined as layers below the solum (A and B horizons) and consists of material which is usually weathered but little affected by soil forming processes. C horizons include consolidated rock and sediments that when moist can be dug with hand tools. C horizons can also be described as substrate. Here is a link to the reference www.publish.csiro.au/book/5230/

Thank you Neil great to hear that it has been helpful.

Hi Lacey, we worked hard on the narrative for this short video and wanted to keep it simple and still ensure it made sense. Happy to hear that it worked for you. Thanks!

I have studied agriculture but professors never explained this topic in this practical manner

Shut your mouth I'm studying Mr

sorry that was quite rude of me, would you like to go and get a drink some time?

@@AphexTwink04 Certaintly

Thanks Robert,it all comes down to soil chemistry, but essentially saline soils have high dissolved salt in the soil water, sodic soils that are dispersible don't. Salinity and sodicity do the opposite to soil structure. Saline soils don't disperse, while sodic soils do. You can observe this by adding one lump of sodic clay to a glass of freshwater and another to a glass of saltwater to see the difference!

@@nswsoilknowledgenetwork2890 Thank you for your quick and thoughtful reply. So the EC is lower in sodic soils (below 4) because the sodium is stuck in the soil and won't go into solution so it can't be read by EC meter?

Thanks Emmanuel Sebastiao. Thank you for watching :)

Excellent - thank you!

Thats great. Thank you!

Hi Shaun, I have sent your question to the SKN soil chemistry brains trust and will reply asap

Hi Shaun, We have two soil chemists in the group and they have both responded to your question. The first reply is - Na is always in its ionic form, Na+, in soils. Never in the metallic form. When the Na+ is attached to a soil (which has a net negative charge) it is referred to as “sodicity”. When the Na+ is not attached to a soil clay, that is “free” or “soluble” Na+, the positive charge is normally balanced by Cl- or HCO3- and sometimes SO4-- and NO3-. That is ‘salinity’. The second reply is - Sodium is always in its ionic form (Na+), but it can often attach to the negative surfaces on, or in rocks or soils. If all the available CEC sites are filled with sodium, then if there is still more sodium (often attached to chloride), it can move freely about and the soil will be sodic and saline. Hope this answers your question.

Thanks a lot for that, I didn't expect you to come back that quickly. I have a soil science exam coming up and this helps.

You're welcome. Good luck !

Thank you Moreblessing ! That makes me happy

Thank you ! Wheat grows in several different soils. In central NSW it grows in red and brown chromosols and dermosols, topsoils are usually clay loam and subsoils light to medium clay. In northern areas it also grows on black vertosols. Topsoils are usually light clay and subsoils medium to heavy clay.

For more info check out our ICONIC SOILS videos for red chromosols and black vertosols

+bonita799063 I'm glad you found it useful

+Wizard S Thank you. I'm glad you liked it

Hi nvrmindthebollocks, Thanks for the feedback, we are pleased that is was useful.

from which university you are doing your degree