Thanks for your youtube channel, I landed on your channel after watching your comment on Kevin Falk's channel. You both are doing great work in educating people like us from India who usually does not have access to great scientists and training.
Thank you for the encouraging comment - I am happy to hear you found this helpful. I will continue to work on making more video protocols for lab, greenhouse and field techniques in the future.
Hi Yuri, I have not made a video on that but the easiest way to do this would be with a leaf area meter like the Li-Cor LI-3100C. Alternatively, you can take images of leaves with a camera at a known magnification (px/mm) against a solid, contrasting background and determine leaf area using some software like ImageJ. A coarser but potentially higher-throughput way to estimate leaf area would be to 1) calculate the specific leaf area (SLA) for whatever plants you are working using a small sample of representative leaf tissue (SLA = known area of leaf sample/dry weight of leaf sample). Then 2) collect all the leaves you want to know the area of and use your calculated SLA to estimate the total area of these leaves based on their dry weight. If I have time, I will try to make a future video on this. Good luck!
@@CFStrock Thank you very much, you're very helpful. I will try to use these method, but i wonder if there are some non destructive way to measure leaf area in order to obtain the leaf area index of weed plant lime tomato or sugarcane. Anyway, thanks again. I'll stay tuned for new videos
@@yuribellone5543 Hi Yuri, For non-destructive methods, measurements of plot-level canopy area can be attained from aerial images (drone/UAV). Alternatively, simple measures of leaf length and width can provide estimates of leaf area at the scale of individual plants. Glad you find the videos helpful for your work.
Add N, P, or K...Unfortunately, I can't really make specific recommendations on rates or form of fertilizer without more information on the types of plants being cultivated, severity of symptoms, soil type, pH, etc. If you are located in the US, and think your plants are deficient in NPK, I would suggest submitting a soil sample to your state's cooperative extension service (usually associated with your state's university system). They will be able run soil tests that are appropriate for your soil type and can provide specific fertilizer recommendations based on the results of those tests and the type of plants you are growing.
Thanks for the suggestion, I agree audio can be improved. I will definitely look into getting one for future videos. These were just recorded on phone without much forethought.
Thanks for your youtube channel, I landed on your channel after watching your comment on Kevin Falk's channel. You both are doing great work in educating people like us from India who usually does not have access to great scientists and training.
Good video with crisp details, on the symptoms / signs of deficiency of MACRO elements in plants... you really made it very easy to understand.
Thank you for the encouraging comment - I am happy to hear you found this helpful. I will continue to work on making more video protocols for lab, greenhouse and field techniques in the future.
I enjoyed your narration. Awesome
Good.. Nice Information Man.. Every Plant Need NPK in big and equal quantity and at the same time the other nutrition is needed small amount.
Looking for K deficiency info. Thx for excellent video
excellent video! Cheers from Italy
what about in case of leaf vegtables
Hello! I love your channel. Have you ever done a video about leaf area measure? Thanks
Hi Yuri, I have not made a video on that but the easiest way to do this would be with a leaf area meter like the Li-Cor LI-3100C. Alternatively, you can take images of leaves with a camera at a known magnification (px/mm) against a solid, contrasting background and determine leaf area using some software like ImageJ. A coarser but potentially higher-throughput way to estimate leaf area would be to 1) calculate the specific leaf area (SLA) for whatever plants you are working using a small sample of representative leaf tissue (SLA = known area of leaf sample/dry weight of leaf sample). Then 2) collect all the leaves you want to know the area of and use your calculated SLA to estimate the total area of these leaves based on their dry weight. If I have time, I will try to make a future video on this. Good luck!
@@CFStrock Thank you very much, you're very helpful. I will try to use these method, but i wonder if there are some non destructive way to measure leaf area in order to obtain the leaf area index of weed plant lime tomato or sugarcane. Anyway, thanks again. I'll stay tuned for new videos
@@yuribellone5543 Hi Yuri, For non-destructive methods, measurements of plot-level canopy area can be attained from aerial images (drone/UAV). Alternatively, simple measures of leaf length and width can provide estimates of leaf area at the scale of individual plants. Glad you find the videos helpful for your work.
Such a helpful video, thank you! :)
Would have been helpful to add, "how to correct each deficiency"...
Add N, P, or K...Unfortunately, I can't really make specific recommendations on rates or form of fertilizer without more information on the types of plants being cultivated, severity of symptoms, soil type, pH, etc. If you are located in the US, and think your plants are deficient in NPK, I would suggest submitting a soil sample to your state's cooperative extension service (usually associated with your state's university system). They will be able run soil tests that are appropriate for your soil type and can provide specific fertilizer recommendations based on the results of those tests and the type of plants you are growing.
Very informative. Had you used a better microphone....
Thanks for the suggestion, I agree audio can be improved. I will definitely look into getting one for future videos. These were just recorded on phone without much forethought.
Ora krungu lik