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Main Banana Discussion This is where we discuss our banana collections; tips on growing bananas, tips on harvesting bananas, sharing our banana photos and stories.


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Old 08-15-2018, 12:44 PM   #21 (permalink)
 
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Default Re: New concept GM high density field

Hey Louis!

Are you taking any unusual (creative) or additional steps to prevent disease since you have increased your planting density?

Thanks!
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Old 08-15-2018, 10:28 PM   #22 (permalink)
 
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Default Re: New concept GM high density field

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Hey Louis!

Are you taking any unusual (creative) or additional steps to prevent disease since you have increased your planting density?

Thanks!
Hi Akula,

I will only discuss the GM cultivars as we are stopping any further development of Namwa and will end up replacing them with GM.
Basically, we have very few problems with the two cultivars of GM we handle as they are quite endemic to this region and therefore have adapted to resist local diseases. Our main problem is rust thrips which has obliged us to use some regular mild pesticide spraying. Apart from that, we now only spread from our own pups and macro propagated plantlets and apply a selective breeding process in the spirit of Fukuoka.
Deleafing is very important for us nowadays so as not to let the plant become dormant. Plants that are continuously growing new leaves are healthy, plants that are allowed to become more or less dormant become easily sick. So basically we push them to grow and never stop doing that. It seems to be working for us.
We control pupping, as we harvest the pups, leaving always the strongest until the first pstem flowers, then we start to leave a second pup. We also deleaf the pups as soon as they start to grow larger fronds.
No strangers are allowed into the banana fields and vehicle circulation is very much controlled. Tools and tanks are regularly disinfected
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Old 08-15-2018, 11:20 PM   #23 (permalink)
 
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Default Re: New concept GM high density field

Thank you for the response Louis.

I think I will try your deleafing technique on one of my namwa pups to see if it grows faster in my patch. My namwas fully unroll a new leaf every seven days. If I could trim that to five days it would reduce the vegetative phase by almost 30% which would be awesome in my zone.

I suppose there is a risk that by reducing the number of leaves fruit quality or number may suffer due to a reduction in total/accumulated photosynthesis activity over the growth period since there are fewer leaves but for me and my zone that is probably an acceptable risk/trade-off if it increases the probability of obtaining fruit reliably each year.

Your field looks great! So much green!
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Old 08-16-2018, 05:00 AM   #24 (permalink)
 
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Default Re: New concept GM high density field

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Interesting idea, thanks!

If you have the link to that thread, I would be grateful. I'd need to understand the scientific logic in that.

To my reelection, there was no science given. It was just a statement in reference to forced dwarfism. ... I think it was PR-Giants, that made the comment. May be he will see this post and comment.


I'll look later for the original post.


Just think about it. A Plant only grow so many leaves before flowering. So if the pstem is chopped when reaching about 75% height and before the plant starts stacking leaves, it still has time to grow those leaves before flowering. But not be able to add much height. ... You are de-leafing the plant anyway, so remove the upper pstem/leaves and allow the new leaves to grow at a short height.


Anyway, your in a very good position to try this without any additional cost. The info gained would/could be useful with other varieties.
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Old 08-16-2018, 09:05 AM   #25 (permalink)
 
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Default Re: New concept GM high density field

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To my reelection, there was no science given. It was just a statement in reference to forced dwarfism. ... I think it was PR-Giants, that made the comment. May be he will see this post and comment.


I'll look later for the original post.


Just think about it. A Plant only grow so many leaves before flowering. So if the pstem is chopped when reaching about 75% height and before the plant starts stacking leaves, it still has time to grow those leaves before flowering. But not be able to add much height. ... You are de-leafing the plant anyway, so remove the upper pstem/leaves and allow the new leaves to grow at a short height.


Anyway, your in a very good position to try this without any additional cost. The info gained would/could be useful with other varieties.
The subject of this thread is not optimizing Namwa performance but field planting density. I have another thread about this subject so I will reply there

Forcing K. Namwa to grow faster
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Old 09-04-2018, 11:51 PM   #26 (permalink)
 
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Default Re: New concept GM high density field

One month has passed since the last TLC photo. Another shot at deleafing the whole field and the K. Hom are looking just fine. It is now easy to creep into the field, just by bending over slightly. The highest leaves are reaching up to 8 feet and all is good. We could do with a little more rain though!


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Old 09-05-2018, 12:18 AM   #27 (permalink)
 
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Default Re: New concept GM high density field

Just re-read the thread and understand you are planting at a density of about 4,000 plants per acre. GM is a pretty big plant too. Waiting to see what happens when the plants are 3-4 meters tall.

Looks fantastic!
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Old 09-05-2018, 12:23 AM   #28 (permalink)
 
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Default Re: New concept GM high density field

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Just re-read the thread and understand you are planting at a density of about 4,000 plants per acre. GM is a pretty big plant too. Waiting to see what happens when the plants are 3-4 meters tall.

Looks fantastic!
Thanks, it's already nice and shaded under there. I'm thinking to install a beer stall in the green cool...
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Old 09-05-2018, 04:20 PM   #29 (permalink)
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Default Re: New concept GM high density field

That looks awesome. The plantains I planted were done at 1200 plants per acre. I though that number was really high. Twin rows 15 feet on center 5 feet between plants with a 10' drive row.
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Old 09-05-2018, 06:23 PM   #30 (permalink)
 
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Default Re: New concept GM high density field

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That looks awesome. The plantains I planted were done at 1200 plants per acre. I though that number was really high. Twin rows 15 feet on center 5 feet between plants with a 10' drive row.
We planted all our GM previously at 1200 per acre, these fields are all fruiting and pupping and there is so much space and weeds between each plant that it incited me to try this new HD planting.
Another important aspect is the fact that the new watering system is just awesome.
We have another field ready to plant now, just waiting for the rain to make easy drilling.
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Old Yesterday, 06:48 AM   #31 (permalink)
 
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Default Re: New concept GM high density field

We just today finished transplanting a second HD field. We are particularly proud as the 600 GM we transplanted are all issued from our own macro-propagation operation. The density has been decreased as an additional experiment, instead of 1 meter between plants we have planted at 1,2 meters between plants which has decreased the density per acre from 4000 to 2750. Not that we are unhappy with the 4000 field, it's just so we can evaluate the best option for us, for our future fields. We have kept the overhead irrigation system as it is proving to be perfect in its functionality, delivering large and precise amounts of water with sprinklers that do not get easily blocked and that are away from weed, earth and bug interference. Watering two rows with one pipe also allows great savings on irrigation equipment.





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Old Yesterday, 07:07 AM   #32 (permalink)
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Default Re: New concept GM high density field

Louis,




Looking good!.....Amazing!.....You are doing an awesome job!.....Thanks for posting/sharing an update!.....Keep it up my friend!.....






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Old Yesterday, 08:33 AM   #33 (permalink)
 
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Default Re: New concept GM high density field

Thanks for the updates. It is really interesting to see how you plan and design these
Fields.

Bill
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Old Yesterday, 09:22 AM   #34 (permalink)
 
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Default Re: New concept GM high density field

Thanks for the update Louis!

That's a great photo showing your sprinkler system. Great water shot straight to the pstem area.

How much water is delivered through the irrigation system per plant differ during the life stages of the plant in the field i.e. small pup, medium, large, fruiting?

Thanks!
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Old Yesterday, 10:13 AM   #35 (permalink)
 
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Default Re: New concept GM high density field

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Thanks for the update Louis!

That's a great photo showing your sprinkler system. Great water shot straight to the pstem area.

How much water is delivered through the irrigation system per plant differ during the life stages of the plant in the field i.e. small pup, medium, large, fruiting?

Thanks!
Hi Akula

Right now it is the rainy season so we try not to water but if we have 3-4 days without rain then we will irrigate these young plants. During the dry season we normally water the bananas three times per week if possible starting mid afternoon. Our soil is very sandy and the water penetrates the soil very quickly so it is of no use to water too much, it's better to water regularly and that is what we do. We have to pump the water up from the river to irrigate the whole plantation and this is done with 4 inch pipes and a massive 5 liter diesel engine and pump.
When it becomes worthwhile I will upgrade the system to a solar pump but this is a large expense not yet justifiable. To answer your question we give about the same amount of water to 3 months old plants as we do to adults and we try to keep all that reasonable as the pump engine burns 4 liters of diesel per hour. I have not measured how much water we give to each plant as we measure more in pumping time but judging by the puddles we create we give at least 30 to 50 liters of river water to each plant, more to the big namwah bushes and we spend our time opening and closing valves and running up and down the plantation to the different zones.

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