Cation Exchange

Not all soils are created equal. Chemistry helps agriculture succeed in a variety of environments. This video explains how soils (often negatively charged) interact with nutrients (often positively charged) through cation exchange. The cation exchange capacity (CEC) of a soil determines how frequently and in what doses it should receive fertilizer.
© 2016, NMSU Board of Regents.
NMSU is an equal opportunity/affirmative action employer and educator. This material is based upon work supported by the Hispanic-Serving Institutions Education Grants Program, National Institute of Food and Agriculture, U.S. Department of Agriculture, under agreement No. 2014-38422-22089. Any opinions, findings, conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

[@SenLightyear]

Taking a soils course now and it took me a whole chapter and six lecture videos to get the same information. Brilliantly done, well organized, and I love the faces and high fives exchanged by the cations. I'll never read H+ without imagining it's cute lil face again.

[@ryanalexander3088]

Which course? 😅

[@ourladyofguadalupebotanica6732]

It's the Kiss principle. Some people are just better at explaining because they focus on the basics.

[@jamesJohnson-qe4gw]

They aren't trying to teach people.. probably haven't been for a while now

[@stevelong2740]

Totally agree with the high fives. Brilliant!

[@Horsingabout]

Absolutely brilliant presentation. Wish this had have been around 20 years ago. Should be compulsory study for all agricultural courses! Congrats! Would have made my seminars so much easier to understand!

[@luvleeaddi]

We had to watch this for my soil science class! It really made things click for me with the visual representations

[@greenline569]

I have never seen such beautifully explained the concept.
Great work
Love from India
ALL the best

[@harmonyhorticulturalconsul6894]

Can I just say that I've spent hours trying to explain these concepts to clients, but now, I just have them watch this video and I follow up with, "It all makes sense now?" I send clients to this video almost weekly, so you are welcome for all of the views!

[@InnerSunshine]

YUP THIS VIDEO SUPERCEDES THE LAST TEN ARTICLES ON ANIONS AND CATIONS IN AG I'VE READ

[@MariaNunez-ks2xi]

Taking ecology this semester in college and we covered this concept. Not going to lie I was very confused but this totally clarified my confusion!

[@masteryourgardenoregon420]

Fantastic! What a great tool to help clients understand how certain soils need to be fertilized differently.

[@alexandrealmeida7334]

Amazing, I study Agronomy in Brazil and it was so useful for me Thanks

[@saybeessi]

im studying agronomy too in malaysia.

[@localagronomist]

thanks a lot for this brilliant explanation of the CEC.

[@SarahMasikini-wp7vf]

This is great and I really don't understand why this can not be learn at schools in America. Soils are of different types and need different care for them to produce well. This chemistry video was well planned and organized for any normal person to understand. Farmers need to watch this and know that excess fertilizer added to some soil types is not good.

[@wiandryadiwasistio2062]

this is really helpful for houseplant keeping too! now i know why it's necessary to mix and match ingredients for potting mix; it's more than soil ph, porosity, and water-holding capacity.
houseplant community shall see and discuss this

[@weathergenerator]

absolutely brilliant explanation. you have a task my friend to educate millions with your style of teaching.

[@sampepwang5508]

it's amazing, helps me with my soil science studies!

[@ScrinkleVid]

thanks a lot, I didn't know there were vids of such high quality about our little study topic :)

[@rotemroichman1535]

Thank you, great illustrations!

[@abdikarimabdi1589]

amazing video, THANKS FOR for the learning lab team

[@dineshzaladekar2892]

Thanks for the video, great aid on electrochemistry..

[@brookewebster8021]

Wow, this was so awesome. I never thought I would enjoy learning about chemistry and yet here I am!! :D

[@outlander271]

Clear info with excellent animation. Well done!

[@dianamiller4080]

This is so cool. Easy to understand!

[@samuelezike01]

Well explained. Currently studying soil ecology and I find this video very helpful

[@leonardodavincimassolo2579]

Very good explanation. Help me a lot in understanding ions exchanging process in rocks..

[@nahidAHlaskar]

THAT'S THE WAY OF PRESENTING SOMETHING GOOD..!

[@akinyooyeridwan8630]

its a wow! it has always seem like magic till this video

[@bonesdoes6142]

THIS is the video I’ve needed for a long time! I can actually say I understand cation exchange now. Amazing video that I’ll be recommending to anyone who will listen. 😊

[@LearningGamesLab]

We are so glad you liked it. Thanks for letting us know.

[@evaorlina3126]

Excellent material for my students in soil science.

[@StillOnTrack]

This video is fantastic!!!! I'm studying soil & plant nutrients and needed to brush up on CEC and this was pretty helpful and entertaining.

[@lttamigabriel8023]

You email me asap

[@naman7331]

I usually don't comment on any video...and this is my first comment ever...no need to say you expained this concept in the most efficient and simplest way possible...Thank you so much...

[@LearningGamesLab]

We are so glad that it helped you. Our mission is to help people learn, and when we find a concept like Cation Exchange that people struggle with and need to understand, we are very gratified to be able to work with content experts to craft an explanation that works for people.

[@pljtgh]

Perfect explanation!

[@fekaduhaile9632]

I have got great knowledge. Thank you very much.

[@Thilicio]

Excellent work, the illustrations, the explanations and the sounds are perfect!!. I also looove how you didn't just assume scientists would be boys.

[@cxv6541]

Best video thank you!!!

[@pinkwheels1313]

OH !
Thank you for your amazing content.

[@SoilHealthpk]

Bravo ! Best Presentation

[@spideywidey100da]

loved this video def helped me understand it much better thanks!

[@user-iq1dt8nz3k]

Amazing explanation and i love the visualisation :)

[@karthikg1202]

Great video
For better understanding of concept

[@borzoo]

Absolutely brilliant presentation , i loved the explanation and it made it easy to understand. thank you so much

[@LearningGamesLab]

Glad it was helpful!

[@maheshkatkam8142]

Amazing.,video I ever seen
video like these🙏🏻 great info

[@muhammedashraf2592]

I am professor of botany belive me the way you explained is awesome. Thanks

[@beckylikesushi]

wow this is an amazing video. Very helpful! ^^

[@anatorrescano8418]

amazing video thank you so much!

[@mamoru1836]

This made it so fun to learn! Thanks

[@hassanabdulazeez7538]

This is so useful. Thank you

[@SurajKumar-fy9ok]

Thanks a million , you are an amazing teacher❤

[@yogeshwakade7207]

What an amazing presentation.

[@SLACuganda]

Awesome presentation

[@sebastianprieto1001]

Really good video. Thanks

[@uwaisusmani1274]

That was a great edu video ,got many mysteries cleared today and agricultural info enhanced conceptually ,thnk u .Watching from India .😊

[@brento2890]

Excellent!

[@evelynmajola1808]

Just helped me a lot. Thanks

[@alasmohamed3534]

best video I have ever seen

[@carelienventer1960]

awesome video, thank you!

[@pratitagriculture9686]

amazingly presented, Thank you so much

[@tavongasihlangu1132]

short and precise thank you sir

[@soilcompactionmaps.myagro.3348]

Well done. Cool video!

[@VishnooSpotlights]

Amazingly done..

[@ravindramaurya889]

Sir you explain in a great way

[@mooncat4638]

Very clearly explained and well-designed tutorial.

[@LearningGamesLab]

Many thanks!

[@boxing0013]

AWESOME!

[@prernaghangas2197]

Well explained .
Thankyou .😊

[@maryamyousaf700]

OMG what an explanation...........we want more videos like this

[@LearningGamesLab]

Thank you! Check out our other resources at ScienceofAgriculture.org. We are always developing new educational videos and interactives.

[@barnaadhikary4400]

You just teach me in 5 sec. Thanks a lot . fabulous

[@LearningGamesLab]

So glad that it helped you learn

[@tomkeenan]

Thanks a great video

[@epicboy4055]

That was great explanation

[@gamerzhideout6026]

it is simple and so hopeful.

[@courtneysimons3344]

Brilliant in simplicity and clarity!

[@deepatpatil]

Thank you

[@Apoptotickitler]

Thank you so much :')

[@uhohitsmo15]

Thanks!!!

[@ot7578]

Great stuff. Thanks for the visuals

[@LearningGamesLab]

Glad you enjoyed it!

[@kesiamariaroy4861]

best video

[@gardenwildfilms3759]

Amazing! Trying to explain this gets me so tongue twisted. Brilliant simple and easy to understand. Thank you a hundred time over!

[@Gothfield]

Absolutely invaluable information.

[@PoochJoey576]

What makes you say that?

[@victorychannel11]

Thanks so much

[@francescolonghini5854]

super helpfull thanks a lot

[@Drew_3000]

brilliant

[@MatthewHedgesEntertainment]

Thank you for this masterpiece you human being, I now understand the Cation exchange muahahahahaha

[@aliyahbhatbhat8458]

Great vedio....

[@andreabalbona3073]

thanks a lot

[@tysonbayak5095]

very helpful video :)

[@kaliyanimeenameena2517]

Fantastic

[@noobsaibot5285]

Good work

[@TusharPol009]

So amazing...

[@lukhanyomakhabane4238]

Amazing

[@4aryannaircoaj428]

Nice explanation 👍

[@emmanuelsteward6885]

very insightful lecture. Please kindly help me with this question. " Explain the importance of cation exchange capacity(CEC) on soil fertility"? thank you.

[@noongull8041]

GREAT 👍

[@boipeloboipelo7063]

WOW, HOW AMAZING YOU ARE!!!

[@LucidEarthScapes]

What happened to the organisms living in the soil that make up the soil food web. Bacteria, nematodes, Micro arthropods, fungus etc? Seems to be heavily weighted towards chemical intensive agriculture.

[@LearningGamesLab]

Thank you for pointing out the importance of living soil. We have plans for future videos on soil microbiome!

[@ayeshar7359]

Amazing video.
Can you tell which editor or video maker you used ?

[@alcateltcl2444]

It's really helpful

[@06-ayeshaanum54]

Very impressive 💯❤

[@ravindramaurya889]

Thanks sir

[@forefatherofmankind3305]

Awesome

[@shoobaloobabobdingalingadong]

Great video! I do have one question, however. I recently started studying this subject and was taught that the ion charge and retention of nutrients is associated more with the humus in the soil than with the minerals. Thoughts anyone?

[@peggijoy6515]

the concept of humus has been debunked and changed to new teaching.

[@laodemuh.zuhdimulkiyan1144]

I Love it 😍😍😍😍😍😍

[@shanerockriver5030]

excellent

[@mohitverma1503]

Sir please upload more soil science vedios your vedios is more effective for study thanks

[@LearningGamesLab]

We are working on a new video on soil water tension. Stay tuned and thank you for watching!

[@nyigambole1925]

beautiful.... ❤❤

[@bhishmadesai6500]

Very well explained. I may dub this in my language, Gujarati for our local farmers.

[@LearningGamesLab]

Hello sir, Would you please contact us about this possibility. We may be able to help.