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lennart 481811 71 Potato growing pictures either
Potato growing pictures
Some pictures from potato growing, this is a Wuhlmaus 1833 harvester towed by a JD 6420S. This picture is taken today.
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Transport of potatoes.Many growers uses wooden boxes 600-1000 kg to store the potatoes. Trailer towed by a Valtra 6850.
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A Grimme SE 75-30 harvester towed by a Valtra 6??? parked beside the road a rainy day.
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A bigger trailer with potato boxes towed by Valtra 6850 with loader.
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A picture from july of potato spraying. Looks quite wet in the soil, can anybody see any yellow color of the wheels?

The sprayer is a danish Danfoil.
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Last photo....lol some dirty wheels! Danfoils sprayers are very intresting i think but pretty expensive. Is it common more south with Danfoil? Up here i´ve never seen one.
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Nice photos Lennart. The weather canopy on the Wuhlmaus is very common here on most of the harvesters used (gets fairly cold & uncomfortable without them for the workers on the back).
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Oops, something must have screewed up - I thought I posted this picture??:-[

This is the last potato harvester picture for the moment - a Grimme SE 75-30 towed by a MF.

@Stark 1: I know about around 10-15 Danfoil sprayers here in our area, mostly potato growers, but as I understand there are some problems with some fungicides that doesn't function with low water amount, the Danfoil has to go very slow if you shall come over 40-50 liters/ha.

@TC; Here it is more without wheater housing, I don't know why - some says when it is sunny and dusty it is irresisteble, but isn't it easy to open all sides? Mostly wheather is not so good when harvesting potatoes, and even if the sun is shining it is good with shadow.
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Lennart that is bad with Danfoil if you have to drive it slow. Very few potato growers around here so speed is very important and it is pretty big areas to spray to. But i like the low water amount idea.
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Most fungicides need 150-200 litres / ha + of water to be really effective (esp protectorant products such as mancozeb). Systemic fungicides such as Ridomil (Metlaxyl + Mancozeb) dont need water rates as high but still higher than 40-50 litres / ha.

I have heard of some products applied to green beans & pyrethrum needing 500-600 litres / ha of water!

Regards,

TC ;-)
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HI TC

here in Bavaria wather rates under 150 l/ha are generaly unknown. I always use 400 to 600 l/ha in potatos depending of the type of fungicide. :-\

Lennart, I also use boxes for but only for seed potatos. Why you use boxes generaly. Yes you mustn´t touch them so often and and vendelation in the storage is easyer and you . But all this is extremly expensive. Let´s me make a joke: Do you sell every tuber packed in gift wrapping paper?? :-D


Best
Theo
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Very interesting Theo, maybe the level of disease pressure is different in different places?

Here fresh market & seed potatoes go into boxes, processing potatoes go into trucks (tipping bins or moving floor bins)

Regards,

TC ;-)
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I think that different disease pressure is not the reason. The reason is that all systemic fungicide like Ridomil have a contact fungicid component like mancozeb for to avoid resistance. And contact fungicid only can have an effect at perfect covering the plant. And for this you need a high wather rate.

For to to understand: Is a bin the same like trailer?


Best
Theo
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Here Hardi's Twin fan sprayers has been the most popular brand in potato spraying. Then they have the freedom to use more or less water depending on sparying conditions. As I understand they normally uses 100-150 liter water/ha in regular spraying, and 150-200 in potatoes.

Theo, about the boxes - In our area many potato growers are small, and even if they have more acerage as total they have many different varieties, then maybe the boxes makes it easier in the storage. As we also have a wet climate maybe box storage makes it easier to dry and ventilate, and if you have damaged potatoes you decrease it to the box.

I'm not a potato grower, but that is some reasons I can think of. I have worked for a big grower and distributor back in the 80's and they stored all potatoes in boxes from app. 200 ha, and they got high piles - 8 high of boxes. Then the storage was less expensive and maybe the total cost for storage was lower?
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Yes Theo, you are probably partially right; as Ridomil has systemic action as well, coverage isnt so much of an issue but point taken about the Mancozeb component, certainly coverage is paramount with protectorant fungicides.

Re the bins, most are carted on semi trailers with these moving belt floor bins (also called walking floor bins), which hold 22-24 tonnes of potatoes.

Some of the smaller tipping trucks have bins that hold 10-12 tonnes of spuds.

Cheers,

Craig ;-)
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Not all potatoes are stored in boxes, here is a picture of trailers loaded with potatoes.
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Grimme SE 75-40 towed by a Fendt 716. From the same farmer as the picture above of the trailers. Sorry for the unclear window of my tractor that I took the picture from.
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