How Long Should a Video Be?
11:51
2 жыл бұрын
How to make the Slide Hammer Seeder
1:00:57
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@ThisIsAquaculture
@ThisIsAquaculture 28 күн бұрын
I enjoyed the video. I actually have a small pilot study we should discuss!!!
@EricBrennanOrganic
@EricBrennanOrganic 14 күн бұрын
Glad you like it. I'd be happy to discuss your pilot study.
@NatureisFreee
@NatureisFreee Ай бұрын
This was a very inspiring video, Dr. Brennan. I hope to take the baton and help improve sustainability in agriculture, especially in studying the relationship between soil health and plant pathogens. Thank you for your work.
@EricBrennanOrganic
@EricBrennanOrganic Ай бұрын
Thanks. Sounds great.
@carolmiller8735
@carolmiller8735 Ай бұрын
I'm a trade editor for the veg production industry -- not a peer review journal. A newly minted PhD wrote for me several years ago. He turned in an article written in third person and I don't think there was an active verb in there. Weirdly, he even quoted himself rather than just use first or second person. So I put everything into active voice and where appropriate, first and second person. There were no other changes, which I was rather proud of -- I was able to keep his words mostly intact, just flipped "It was found" to "We found", etc. He hit the roof, saying I humiliated him in front of his peers and made him look unprofessional. Told me I lack journalistic integrity, etc. I either had to take down his article or put up the original. I just took it down, although he had done some good work.
@EricBrennanOrganic
@EricBrennanOrganic Ай бұрын
Hi Carol, thanks for sharing this, and for trying to improve his writing.
@kenjohnson593
@kenjohnson593 Ай бұрын
I've really enjoyed your YT seminars. I find myself becoming more philosophical in my research efforts as I approach retirement. It would be really interesting to hear you talk about how your approach to research has evolved from your early work through now.
@EricBrennanOrganic
@EricBrennanOrganic Ай бұрын
Thank you Ken for you thoughtful comment. I'm glad that you've enjoyed the videos. Thanks for giving me a great idea for a future video :). I'll add that to my list. I wish you the best a you approach retirement too. I share your sentiment about becoming more philosophical. One thing that I think a lot about is this latter part of my career is the need to get all the good data that I've collected published in peer-reviewed journals and then shared in ways (i.e., videos) that are easily understood and that help the ag community that I serve. Your comment inspired me to look up some literature on this. Here are two papers I found and enjoyed reading (I'm sure that are more). www.nature.com/articles/d41586-018-05715-8 www.nature.com/articles/521020a If you're not able to access either of these, email me and I'll send you a PDF.
@chandlerbennett4562
@chandlerbennett4562 Ай бұрын
Dr. Brennan I have really appreciated all your research, ideas, and solutions. Big shoes to fill to say the least.
@EricBrennanOrganic
@EricBrennanOrganic Ай бұрын
Hi Chandler, thanks for the nice comment. I am very fortunate to have been able to work here and to play a small part in helping the innovative ag industry. Looking forward to continuing to do so, and helping the next generation continue this important research.
@ChipMonkSamurai
@ChipMonkSamurai Ай бұрын
Dude you are crazy! We could be friends. Thanks for the vid!
@EricBrennanOrganic
@EricBrennanOrganic Ай бұрын
You're welcome.
@SH-bw5fx
@SH-bw5fx 2 ай бұрын
Your too real worked African farmer ❤
@EricBrennanOrganic
@EricBrennanOrganic 2 ай бұрын
Great. Glad it helped. Thanks for letting me know.
@Shane542
@Shane542 2 ай бұрын
WOW!!!!
@EricBrennanOrganic
@EricBrennanOrganic 2 ай бұрын
Thanks
@homesteadrevivals
@homesteadrevivals 4 ай бұрын
My Great Grandpa reused and repaired everything (he even stitched up the torn screens of his fly swatters)! He used old inner tubes to weave a new seat for his porch rocker. I thought it was the most brilliant thing ever, but my mother would get annoyed by all the black marks I would get on the back of my pants when we visited Great Grandpa!
@EricBrennanOrganic
@EricBrennanOrganic 4 ай бұрын
Thanks for sharing.
@niceday8888
@niceday8888 5 ай бұрын
You are so smart! Thank you for Upcycle and share this tool!
@EricBrennanOrganic
@EricBrennanOrganic 4 ай бұрын
Thanks. You're welcome.
@lhcheng9155
@lhcheng9155 5 ай бұрын
Amazing and simple invention!
@EricBrennanOrganic
@EricBrennanOrganic 4 ай бұрын
Thanks.
@sandralewis1689
@sandralewis1689 5 ай бұрын
Still wonderful! So glad I found it.
@EricBrennanOrganic
@EricBrennanOrganic 4 ай бұрын
Thanks.
@EricBrennanOrganic
@EricBrennanOrganic 4 ай бұрын
Thanks
@barkergardens
@barkergardens 5 ай бұрын
Entertaining and informative
@EricBrennanOrganic
@EricBrennanOrganic 4 ай бұрын
Thanks. It was fun to make.
@johnathonnichols
@johnathonnichols 7 ай бұрын
Now you've got me looking for steel banding. If you're looking for another use for your innertubes see if there is a bow maker around. Innertubes work great for gluing up a laminate bow.
@EricBrennanOrganic
@EricBrennanOrganic 6 ай бұрын
Sounds good.
@rickyserna1734
@rickyserna1734 7 ай бұрын
Thank you for the nice video. Material: Steel Pallet Strapping
@EricBrennanOrganic
@EricBrennanOrganic 6 ай бұрын
You're welcome.
@danilu2479
@danilu2479 7 ай бұрын
Great video! It’s always the little things that count huh 🤗 I’m a firm believer in owning my mistakes - nice to see others say the same thing.
@EricBrennanOrganic
@EricBrennanOrganic 6 ай бұрын
Thanks for the nice comment.
@customcutter100
@customcutter100 7 ай бұрын
I just started using Farmall tractors to plant and cultivate a large garden. I cultivated for the first time yesterday, after the seeds had only germinated the week before. I placed the front sweeps about 12" apart, they were about 6" wide. On the rear bars I put 2 large 18" sweeps to break up the compaction of the tires. I noticed that the front sweeps were breaking up the soil and leaving about 6" of undisturbed soil, but I was almost covering up the small corn, bean, and pea seeds that were a week old. I think I could make some small "hoes" like you have shown and attach to the front tool bars and get much closer to the plants without worrying about burying the plants due to a large tool passing near by. Thanks for the idea.
@EricBrennanOrganic
@EricBrennanOrganic 7 ай бұрын
Thanks. I like your idea and would love to hear how it works. If the field doesn't have much crop residue, it may work well. If there's lots of residue in the cultivation are it might build up on the straps and then cause them to bend out of shape. Just a thought.
@markjohnson5602
@markjohnson5602 8 ай бұрын
Great idea that I'm gonna try! But I gotta wonder why in world are you growing in plastic mulch? How long does the plastic mulch last? Yeah...l really like repurposing (and will use your idea,thank you) but honestly don't see a gain for farmers or the planet. Don't we have enough plastic trash now?
@EricBrennanOrganic
@EricBrennanOrganic 7 ай бұрын
Thanks. I understand the concerns and environmental problems with plastic mulch in strawberry production,, but it is standard practice in organic and conventional strawberry production in California and elsewhere. It helps with many issues (weed suppression, disease, etc.), but is not easy to recycle. The plastic is only used for single season and then is typically disposed in garbage when the strawberry crop is terminated. There are efforts to find alternatives that biodegrade, but these are no common California. Here's are links to learn more publications.extension.uconn.edu/2022/06/03/soil-biodegradable-plastic-mulch-is-it-right-for-you/ phys.org/news/2022-09-biodegradable-plastic-mulch-climate-smart-agricultural.html
@scubamario2006
@scubamario2006 8 ай бұрын
Good video thank You.
@EricBrennanOrganic
@EricBrennanOrganic 7 ай бұрын
Thanks. I'm glad you like it.
@petergee7269
@petergee7269 8 ай бұрын
Saw this after Picnic Day 2019. I have only found strapping once, in the dumpster of a fraternity. That was perforated and bent easily. I'd like to try this with new strapping. Anyone know what kind to get, other than high carbon types of steel? I think this tool is very important even if it requires new stuff.
@EricBrennanOrganic
@EricBrennanOrganic 7 ай бұрын
Thanks for the comment. Other materials (other than recycled strapping) that could be used include worn out blades from a band saw, strapping from a large hose clamp.
@paulunderhill5100
@paulunderhill5100 9 ай бұрын
Is there someplace where you have close up shots of this planter? I have most of the parts that you used but it's too far away in the video to see the details.
@EricBrennanOrganic
@EricBrennanOrganic 8 ай бұрын
Hi Paul, Sorry for the delay getting back to you. Send me an email ([email protected]) and I'll be happy to send you some close up photos of the equipment. Take care, Eric
@Ravi_Neelipally
@Ravi_Neelipally 9 ай бұрын
Oops, I goofed up too, but hey, now that I know, I've tipped off the lab newbies to fix it. Thank you, Dr. Brennan!
@EricBrennanOrganic
@EricBrennanOrganic 8 ай бұрын
You're welcome Ravi. Thanks for the comment and for tipping off others to avoid making this common mistake. Best of luck with your cover crop research. Sorry for the delay responding.
@VanillaAttila
@VanillaAttila 9 ай бұрын
How much does the equipment cost to produce your own nitrogen using renewables? I'd like to do this on my 13 acre farm.
@EricBrennanOrganic
@EricBrennanOrganic 8 ай бұрын
Hi, sorry I don't have specific costs on this but here's link to a company (Nitricity) that's working on this that might be of interest to you. take care, Eric www.nitricity.co/renewable-nitrogen-fertilizer-pioneer
@davidholgate7832
@davidholgate7832 Жыл бұрын
Dr. Brennan, what a great tool, a great paper describing it, and and even greater video!! really good job, sir! i'll definitely use this tool come Spring '24 in Upstate NY to plant sweet alyssum, and other small seeds like maybe basil, etc. and, smart to make it fun! an entertaining training is more successful than a boring one! job! thanks, again, and, take care! dave
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Thanks Dave for your comment. I'm glad you found the paper and video helpful. That's my goal. Take care, Eric
@Christinelenches-hinkel-u4h
@Christinelenches-hinkel-u4h Жыл бұрын
2:14….was wondering how soil quality is defined
@Christinelenches-hinkel-u4h
@Christinelenches-hinkel-u4h Жыл бұрын
And how is Soil diversity defined
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Here's a paper that defines it. Karlen D.L., M.J. Mausbach, J.W. Doran, R.G. Cline, R.F. Harris, G.E. Schuman. 1997. Soil quality: A concept, definition, and framework for evaluation. Soil Science Society of America Journal 61:4-10. www.ars.usda.gov/ARSUserFiles/21904/Others%20PDFs/Soil%20Sci%20Soc%20Am%20J%2061p4.pdf
@Christinelenches-hinkel-u4h
@Christinelenches-hinkel-u4h Жыл бұрын
Thank you so much!
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
You're welcome
@Christinelenches-hinkel-u4h
@Christinelenches-hinkel-u4h Жыл бұрын
I read through the paper. Lots of good stuff and was glad to see there was mention of the soil microbiology. Though wasn’t elaborated on. Have you thought about producing a video on this topic and what role the microbiology plays in plant development? You do such a great job of explaining such technical topics. I’m beginning to liken soil health with our own gut health. If the soil and gut microbiome is healthy, and all the microbes are present doing their thing to digest the food we give them, then our bodies and plants benefit…improved quality of life and greater crop yields, resiliency from pests/disease and nutritional value (crop quality). Your thoughts?
@ThisIsAquaculture
@ThisIsAquaculture Жыл бұрын
Reciting your lines, breathing and looking at the camera is already hard enough but juggling too?!?!?!?
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Thanks. It was good fun. : ) Practice, practice, practice... and many years of dropping the ball & experimenting with different ways to communicate my science. Here are a few more fun videos where I've integrated juggling. -Cover cropping is like juggling. kzbin.info/www/bejne/kGnch3emnaegbZo -Scientist celebrates KZbin for Science Communication by Juggling to Pharrell Williams’ HAPPY song (Narrative & Music). kzbin.info/www/bejne/nJeQXpl4ariUeKM
@ThisIsAquaculture
@ThisIsAquaculture Жыл бұрын
I watched a couple of those already. Shuffling down the rows while folks are working!!!! hysterical. @@EricBrennanOrganic
@rondavis2791
@rondavis2791 Жыл бұрын
I've got a decent amount of cardboard to break down. Pizza boxes Amazon boxes etc. I was wondering if i could use synthetic nitrogen with my worms to help break it down. What do you think? Great video
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Thanks. Glad you liked the video. Interesting question. Why not just put the cardboard on the soil as a weed barrier around a tree, shrub or perennial grass, then cover it in some other mulch (leaves, wood chips, etc.) and let it decompose naturally over time? In a few months the cardboard will likely be gone. Earthworms in the soil, and other critters (sow bugs, etc.) will help with the break down of the cardboard.
@rondavis2791
@rondavis2791 Жыл бұрын
@@EricBrennanOrganic I could do it in my garden around an electric fence but were in a drought I will put some out there. Tried it around my trees ounce and the coons and skunks dug for grubs at night. I had cardboard blowing everywhere it was a mess lol.
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Sounds good. I had the same problem once with cardboard mulch attracting wild pigs to root for earthworms under trees. The pigs damaged the trees.
@FredVocasek
@FredVocasek Жыл бұрын
Right on. I do not write for academia, but for producers and CCAs. About35 years ago, my boss read "On Writing Well" by William Zinsser and made me read it. Changed the way I wrote forever - from third-person passive to first-person active - as best I could. Thanks for being an advocate.
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Thank you for your comment and support, and for your important work of writing for CCAs. When scientists write, we need to keep our readers our readers in mind. For me that means trying to make sentence in my papers as easy to read as possible. I also means telling a story about my data that is accurate, interesting, engaging, and easy to understand. My readers may include CCAs (certified crop advisors), farmers, growers, scientists, extension agents, farm advisors, students, and the general public. Here's a good paper that you & others may enjoy. Freeling B., Z.A. Doubleday, S.D. Connell. 2019. How can we boost the impact of publications? Try better writing. Proc. Natl. Acad. Sci. U. S. A. 116:341-343. www.pnas.org/doi/10.1073/pnas.1819937116 Thanks for recommending "On Writing Well", I'll get a copy today, and look forward to reading it. Here are links for readers to learn more about the importance of the CCAs CCAs-Who Are They and What Do They Do?acsess.onlinelibrary.wiley.com/doi/10.1002/csan.20249 www.certifiedcropadviser.org/files/certifiedcropadviser/promotional-materials/prospective-cca-tsa-brochure-web.pdf
@davidnielsen5401
@davidnielsen5401 Жыл бұрын
Great video. I agree with every point you made, and intend to let the editorial boards of the Tri-Society publications know that they should accept your suggested change to the style manual. I've dealt with some stubborn editors and reviewers in the past, and know how frustrating that can be when their ideas and suggestions are demonstrably wrong.
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Thank you David for the comments and for your support on this issue. I'm hopeful and increasingly confident that the ASA-CSSA-SSSA editorial boards will be open to the suggested changes. Several years ago a former editor of the Agronomy Journal (AJ) (Bullock, D. 2008, Letter from the editor. Agron J. 100:236) wrote some insightful words that are worth repeating and relevant the challenge described in my video. He said: "I also encourage all of our readers, reviewers, and authors to let me know what you think about where AJ is going and where we are. Are we serving the role that we need to serve? What can we change to better address our charge? I am also very interested in hearing about your experiences with the AJ editorial review process. If there exists somewhere out there individuals for whom all of your experiences with AJ have been wonderful then I would love to hear the compliments. I will certainly pass them on. On the other hand, if your experiences have been, as one young author told me, more akin to a drive-by shooting than a constructive review process then I would like to hear those complaints as well. I cannot guarantee you that we can fi x every problem immediately, but I do promise you that your voice will be heard. Th is is our journal and we can make what we want of it. Th e only thing that is set in stone is that we strive to be the best at what we do and the product of our labors is to be of high quality. Everything else is open for debate." Here's a link to download his letter www.ars.usda.gov/ARSUserFiles/21904/Others%20PDFs/Agron%20J%20100p236.pdf
@adkjani1
@adkjani1 Жыл бұрын
Excellent video, Eric! I've made many of these errors myself in my own work. It's better late than never to start getting it right. I had never even thought of some of these issues before you mentioned them here. I'll use this video next semester when I discuss cover crops with students. - Arun
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Thanks Arun for the compliment on the video and for being honest about your errors. That's how we learn and improve. I'm glad you'll be able to use this in your classes. Take care, Eric
@JonahVanRoekel
@JonahVanRoekel Жыл бұрын
Got to attend your video-making presentation at Tri-Societies, and had reviewed this paper a few months back. I didn't realize it was the same person, small world! Video is definitely the perfect format for this topic, I'll be forwarding this along to some other cover crop researchers.
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Thanks for attending the video-making workshop and for sharing the video and paper with other cover crop researchers.
@maxwellhelmberger4923
@maxwellhelmberger4923 Жыл бұрын
Great video! Might show my ecology students this when we talk about field methods.
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Thanks for the comment. It was fun to make. Glad you liked it. Hope it helps you students.
@JohnKempfVisionBuilder
@JohnKempfVisionBuilder Жыл бұрын
Very well articulated. Thank you for sharing! It is critical that we become better communicators, and constantly strive to make our findings attractive to lay audiences and citizen scientists as well as other scientists.
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Thanks for the supportive comments and highlighting the need for us to be better communicators across a range of audiences. I'm glad you liked the video.
@Christinelenches-hinkel-u4h
@Christinelenches-hinkel-u4h Жыл бұрын
I was curious if anyone has read the book: Humus and the Farmer by Friend Sykes. Very informative and thought provoking challenging the use of synthetic fertilizers back in the 1930s, 1940s. Biggest takeaway from the book so far is Chapter IV which speaks to what Dr. Brennan is messaging.
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Thanks for your comment. I downloaded a copy of the book and scanned through chapter 4. It's striking how different the writing style was back then to now. I read that the author is highlighting the value of manures, compost, etc. and questioning the use of synthetic nitrogen. But that's not my message here in this video. Perhaps I'm misunderstanding your comment, please clarify if you like. My message here in this video is on the value of using winter cover crops in rotations with high-value vegetables. Much of this benefit from cover copping comes from the ability of the cover crops to scavenge nitrogen left from one season and recycle it back into the soil in the spring prior to the following crop. This recycling N helped to increase subsequent vegetable yields. In addition, the cover crops add organic matter that benefits various organisms in the soil soil food web, and improve soil physical characteristics. My research was in an organic system, but I would expect to see similar benefits from cover crops in a conventional system that used synthetic nitrogen fertilizers. As I pointed out near the end of the video, much of the nitrogen in the 'organic' fertilizers that are used in organic systems here, began as synthetic nitrogen. Here's a link to that other video. Sustainability problems with 'repackaged' synthetic nitrogen in organic agriculture. kzbin.info/www/bejne/aXjNk6GZnbWbopo
@Christinelenches-hinkel-u4h
@Christinelenches-hinkel-u4h Жыл бұрын
Yes…thank you for the reply and I have been exploring your other videos as well. You do a great job and I did come across the repackaged synthetic nitrogen link. I wasn’t entirely convinced I’m afraid. As I am coming from an environmental planning perspective, I take an cross disciplinary analytical approach which has led me down the path of microbiology and it’s role in creating healthy soil. The ability of nitrifying bacteria to convert nitrogen from the atmosphere and decaying plant material through the composting process into the different forms of nitrogen in the soil that the plants can take up was a huge piece to my understanding of the nitrogen cycle. The microbiology field provides an amazing depth of understanding about soil health and the role microbes play in feeding the plant. In essence, I have come to learn that it is the microbes in the soil we need to feed and protect versus feeding the plant. Your thoughts on this? I think perhaps this is where the disconnect is in the arguments for/against synthetic fertilizer. So much is happening below ground that I am not finding explained by soil scientists which focus primarily on the chemical elements and physical properties needed for optimal plant growth. I loved the video on the contribution hedgegrows provide and the biology it supports above ground. Looking to understand more of how microbiology is viewed and understood in your work. Thank you for all you do to educate the public on this subject.
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Glad you like the videos, thanks. The book (Enriching the Earth - see link in video description of the Repackaged Synthetic Nitrogen video) really helped me to appreciate the role of synthetic nitrogen in all our lives. www.amazon.com/Enriching-Earth-Fritz-Transformation-Production/dp/0262693135 Microbes are critical for nutrient cycling, and transformations in the soil. Some of them can also amazingly convert gaseous nitrogen in the air into forms that plants can use. This happens via symbiotic nitrogen fixing bacteria in plant roots of some legumes. But as is pointed out in the book noted above, there is not adequate land to biologically fix all the nitrogen needs to feed the world. Here's a link to a radio program on nitrogen that you might find interesting. radiolab.org/podcast/180132-how-do-you-solve-problem-fritz-haber
@jcjc6715
@jcjc6715 Жыл бұрын
Very good idia...some time a DIY simple tool is the best ...Thank you from Thai farm man...
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
You're welcome. Thanks for the nice comment. ขอบคุณสําหรับความคิดเห็นของคุณ ผมดีใจที่คุณชอบมัน ผมทํางานในประเทศไทยหลายปีทีแล้ว
@vnon-ft2em
@vnon-ft2em Жыл бұрын
genius
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Thanks. Glad you like it.
@CmdrSoCal
@CmdrSoCal Жыл бұрын
clover and bird poop make more sense
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Thanks for the comment. The challenge is that nitrogen fixation by legumes, and recycled N in animal manures can not supply all the nitrogen needs for food production. They are important parts of the solution but we also need synthetically produced nitrogen, and as my video described, even organic farms us synthetic nitrogen (just after it has been 'repackaged'). Below is a good paper that discusses that global nitrogen flows and address this. The same author also provides more details in his book titled Enriching the Earth. Smil V. 1999. Nitrogen in crop production: An account of global flows. Global Biogeochemical Cycles 13:647-662. doi: 10.1029/1999gb900015. Here's a link to this paper agupubs.onlinelibrary.wiley.com/doi/pdfdirect/10.1029/1999GB900015?download=true
@valvol4388
@valvol4388 Жыл бұрын
Wonderful! Absolutely brilliant invention! Thanks a lot for great example of creative mind!!! All the best wishes!!!
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
You're welcome. Thanks for the nice comment.
@pikachuclasico2366
@pikachuclasico2366 Жыл бұрын
I share these vids w my mom who teaches pre-1st grade kids on safety and tech in her classes, your videos have given her help in setting up during the Stay athome period, Thanks dude
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
You're welcome. Thanks for sharing this. I'm glad to hear the videos are helping. take care
@netotrx
@netotrx Жыл бұрын
Muy buena información, ya me suscribí a tu canal
@netotrx
@netotrx Жыл бұрын
Gracias
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
De nada. Gracias por suscribirte a mi canal.
@MultiAppleworm
@MultiAppleworm Жыл бұрын
Wonderful! Thanks Eric, this is very valuable to helping solve turnip aphid issues we have in Florida
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
You're welcome Steve. Hope it helps. Take care.
@GEOsustainable
@GEOsustainable Жыл бұрын
Very nice. This could work for greenhouses I think. 1 to 2 per 50 heads is easy.
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Thanks. Sounds good.
@leejohn4966
@leejohn4966 Жыл бұрын
Not really free
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
It's made from materials that you can often get for free or for very little cost.
@terryfrancis1026
@terryfrancis1026 Жыл бұрын
I'm trying this idea wantok. Great to know you grew up in Papua New Guinea 🇵🇬
@EricBrennanOrganic
@EricBrennanOrganic Жыл бұрын
Sounds good wantok. Hope it works well for you.
@sandralewis1689
@sandralewis1689 2 жыл бұрын
Still brilliant and thanks so much for your excellent teaching!
@EricBrennanOrganic
@EricBrennanOrganic 2 жыл бұрын
Thank you. You're welcome.
@ChicoCELT
@ChicoCELT 2 жыл бұрын
Since there is no accounting for stand density, seems like this approach would have limited application for areas with sparse stand development, such as caused by low rainfall.
@EricBrennanOrganic
@EricBrennanOrganic 2 жыл бұрын
Hi Lee, Thanks for the excellent comment/question. The soon-to-be published paper on this has more details in stand density, etc. But essentially, the method was robust (i.e., worked well) across a huge range of densities because of the amazing ability of cereals to adjust their tillering based on stand density. The densities for rye in the regression curve ranged from about 200 to 900 plants per m2, and for triticale they ranged from about 100 to 300 plants per m2. I admit that I was surprised with how well the method worked across a range of densities, row spacings (6-8 inches) and even planting methods (drilled and broadcast). In addition, the data came from irrigation field, rainfed field, organic and conventional field, etc. and a range of soil types and planting dates. As you can see there is some variability in the scatter of the data, but an r2 of 0.87 to 0.88 still makes me smile : ) By the way below is a link to a paper from my long-term research where we tracked the effect of plant density on biomass production over 8 years. Soon after planting, biomass is higher with higher densities but the effect quickly goes away once the cereals adjust their tillering. -Brennan E.B., N.S. Boyd. 2012. Winter cover crop seeding rate and variety affects during eight years of organic vegetables: I. Cover crop biomass production. Agronomy Journal 104:684-698. www.ars.usda.gov/ARSUserFiles/21904/BrennanPeerRevPdfs/Agron%20J%20104p684.pdf Here’s another 2 yr study with similar results. -Boyd N.S., E.B. Brennan, R.F. Smith, R. Yokota. 2009. Effect of seeding rate and planting arrangement on rye cover crop and weed growth. Agronomy Journal 101:47-51. www.ars.usda.gov/ARSUserFiles/21904/BrennanPeerRevPdfs/Agron%20J%20101p47.pdf Hope this helps, Take care, Eric
@ChicoCELT
@ChicoCELT 2 жыл бұрын
@@EricBrennanOrganic That's impressive. Thank you!
@EricBrennanOrganic
@EricBrennanOrganic 2 жыл бұрын
You're welcome Lee. thanks.
@lukesalvato5172
@lukesalvato5172 2 жыл бұрын
Great video as always. Question - what is the incentive to earn credits? Is it required by law? Or can the farmer receive a payout for credits? Thanks
@EricBrennanOrganic
@EricBrennanOrganic 2 жыл бұрын
Thanks Luke. Good question. The incentive is that the nitrogen scavenging credit basically gives the farmer more nitrogen to work with in their production. There is not a payout for the credit. But farms will be restricted in how much nitrogen discharge they are allowed to have. N discharge is essentially the difference between what's applied (as fertilizer, irrigation water, etc) and what's removed in harvested product. The allowable discharge is phased is gradually over time and goes down. So if the discharge allowed is 300 lb per acre but the farm has a discharge of 400 lb per acre, a cover crop N scavenging credit of 110 will reduce the discharge from 400 lb to 290 lb (400-110= 290) and thus will get the farm below the required limit. Here's a link to a good blog by my colleagues with more details on some of this. -Smith R.F., M.D. Cahn. 2021. Ag Order 4.0 Finalized: Implications for Nitrogen Management of Vegetables on the Central Coast. ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=46578
@jimclark6605
@jimclark6605 2 жыл бұрын
Eric - Great job of making a somewhat complex process understandable and doable. Excellent visuals and charts make it easy to understand the process from beginning to end.
@EricBrennanOrganic
@EricBrennanOrganic 2 жыл бұрын
Thanks Jim. It's been an interesting and rewarding research project to work on. And it's also been lots of fun figuring out ways to describe it visually and communicate it with video.
@kenjohnson593
@kenjohnson593 2 жыл бұрын
The fit to the regression line is much worse above the 4500 lb/acre requirement. Why is that (from a very ignorant non-farmer, sorry)?
@EricBrennanOrganic
@EricBrennanOrganic 2 жыл бұрын
Hi Ken, excellent question and observation. This pattern where the variability of the data is not uniform across the data range is referred to as heteroskedasticity. If you want more details on this here's a link that describes en.wikipedia.org/wiki/Homoscedasticity_and_heteroscedasticity . In the case of the cover crop data, the data scatters becomes more variable as the shoot length and biomass increases. This means that there is more uncertainty in estimating biomass above about 100 cm for rye and above about 80 cm for triticale. Fortunately, this is not the case up to the 4500 lb/acre requirement, so it does not concern me. I'm not sure about the exact cause of the increased variability above these values, but it likely reflects the variability across the range of planting sites planting dates, and growth conditions (i.e., moisture stress, etc.) of the cover crops. It also likely has something to do with how the cover crops gradually over time shift their biomass allocation from vegetative tissue (leaves, stems) to reproductive tissue (developing seed in the heads). Perhaps what this is telling us is that the regression curves provide a good way to estimate vegetative biomass (leaves and shoots), but that once seed set begins things are different. Hope this helps, and thanks for asking. take care, Eric
@billwest9110
@billwest9110 2 жыл бұрын
Have employed inter planting of pollinator and host plants along with vegetables/berries for quite some time. Definitely larger yields with a balance of predators and prey. Frogs and birds consume large amounts of insects. It’s organic so a constant learning process.
@EricBrennanOrganic
@EricBrennanOrganic 2 жыл бұрын
Sounds good. Thanks for sharing.