damn, this is one of the best videos I have watched in a while on soil chemistry

Microbiome of soil, bacteria and mycoryze fungi are in charge of balancing soil equilibrum...earthworms shit is more alcaline than what they eat...soil management was an art eons before we make it a science...

Man's a legend for ignoring that fly.

Would diferent crops develope diferent rate so crops rotation corect way prevent bleaching of soil and soil erosion can be prevent otherwise only river basin with yearly flooding help keep soil fertile like rice paddies so fertilizers and crops rotation require careful harmonized in other agricultural land where rain or flooding is too rare . in that case a strong crops like corn , peanuts , or soy bean may needed to produce natural water with amonium nitrates to release oh react with acidic soil produce water if this theory is coreect then one crop of grain like rice or wheat a year may sufficiently balance. In case of salinity soil with low ph level then sugar cane or mango , banana may be good sustitution crop rotation

wow this is amazing information

Short video but very clear, thank you so much.

Thanks I study the soil food web . Keep up the good work.

And the cure for that is to add mulch or compost. - T

does magnesium have a similar effect as calcium? as it's another divalent cation?

Punjab

The topic is very educative

You have to take into consideration also the amount of sand in your "1% organic matter" soil. So it is actually worst than it looks because in the "1% organic matter" soil much of the water will just keep going down. The tubes should be "without" a bottom so that the water can keep going down into the soil where most roots can't reach. Put water, wait for like 24h or something then weight the samples to see the actual holding capacity (or what I believe to be a better method) close to the roots of most plants. EDIT: Obviously weight every sample before watering...for obvious reasons. Or put the samples under some plates or something to collect the running water to mesure it at the end. Here in this presentation the bottom of the glass container holds the water and not the soil (clay + organic matter) sorry for my bad english

Interesting results. I love to see these long-term studies. Thank you for sharing.

amazing footage

Carbon, in the end, comes from the air. It may be the case that straw, or stubble, is worth more on the ground than at market. No one inputs carbon to a crop. And carbon cycles in the biosphere. I hope this helps. Also, the Earth is warming up because the last ice age is still ending; it has nothing to do with carbon, at all.

Dear.Professor Richard, My name is Heng and I am literally Cambodian. Currently I am taking master course and conducting a research bio resource in Japan which the topic is relates to dynamics and utilization efficiency of plant nutrients in soil amended with composts. Yours video has a good content and informative. I am waiting to see more video like this. Yours sincerely,

You may want to spend some time identifying soil at risk of collapse. Not sure what the governing body is where you're at, but in the US, nobody goes in an unsupported trench more than 5 ft deep

Couldn't you have worn bigger boots to tuck behind you

Thank you - great visual. I lecture in pastures and soils and have scoured the internet for videos and diagrams that clearly and succinctly communicate the chemistry behind dispersive soils. This is one of the best.

Sir you are doing great , you are making the concepts of soil science more easy, thank you

How do you know that Van Der Wall's forces are the predominant binding force in flocculation? Why not just a thinner double layer with the Calcium ions and a a slower diffusion coefficient compared to sodium ions?

Hello, I would love to read your books but for the non IOS user there is no way of doing so. If you could upload it on some more accesible place i would be very glad. ❤

very good information

LEGEND!!! thank you so much!!!🙏🏿

je vous remercie de votre bien expliquer cette dans cette video

how can i download the eboks on windows or on android?

how can i download the eboks on windows or on android?

Lacking plain English explanation of positive and negative with examples. Lots of science zero practical information for Joe average

how can i download these eboks on windows?

Soo simple soo informative 🙏🙏🙏

nice

nice

I like this video so much. if you don not mind, i would like to ask your permission to share this video to the other website in China for the embarrassing reason that KZbin is blocked from accessing in China. Of course, i will give sources of the original website. Thank you very much.

Thank u for explanation sir Thats very important for farmers🙏🙏

Thank you very much for recording and sharing very useful webinar