Plastic Laying Machine 1



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Source page: http://commons.wikimedia.org/wiki/File:Plastic_Laying_Machine_1.jpg
English: Plastic laying machine pulled by a John Deere tractor at a farm in Massachusetts, USA.
Original comment: "This implement goes on the back of a tractor and lays out a row of plastic. The plastic absorbs sunlight and heats the soil to get things started earlier. It also keeps down the weeds right around the plants, although it's a real pain to weed adjacent to the plastic without cutting holes in the edges. The machine shapes a bed with furrows on both sides and lays the plastic down on it. The packing wheels press the plastic down into the furrow. The wheels are angled slightly so the plastic is stretched tight across the bed. The covering disks then throw some soil on the plastic in the furrow, locking it down to the ground. A drip tape is also laid down about 2 inches below the surface under the plastic. Rain and overhead irrigation will diffuse in from the side of the plastic, but using the drip line is more efficient and requires much less water. This version does not have the fertilizer attachment which is available on other models. The concrete block is there to hold the drip line in place while laying the plastic. The plastic and the drip line are under tension to keep them straight and tight, so if the drip line slips out from under the concrete block you could wind up without drip line under the plastic. The plastic film costs a bit less than 4 cents a foot and the drip line costs a bit more than 2 cents a foot. It took me about 2 hours to lay 1500 ft of plastic. Most of that time is getting set up for a row, making adjustments, and covering the ends of the plastic. The plastic laying machine doesn't do anything to the ends of the plastic so the shovel is there to cover the ends. If you don't cover the ends, the wind can get under it and rip it all out of the ground. The rows can be laid down closer than shown here, but I like to have space between my tomatoes. It enables me to get a garden cart between the rows for transporting the picked tomatoes and it allows better air circulation to dry off the plants and reduce fungus problems on the plants."
Date 14 May 2009(2009-05-14), 15:32
Source Flickr: Plastic Laying Machine
Author Dwight Sipler
(Reusing this file)
Checked copyright icon.svg This image, which was originally posted to Flickr.com, was uploaded to Commons using Flickr upload bot on 14:55, 27 May 2010 (UTC) by Bdk (talk). On that date it was licensed under the license below.
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EXIF data:
File name plastic_laying_machine_1.jpg
Size, Mbytes 3.45198144531
Mime type image/jpeg
Camera manufacturer NIKON
Camera model COOLPIX S52
Orientation of image 1
Image resolution in width direction 300
Image resolution in height direction 300
Unit of X and Y resolution 2
Exposure time 10/2500 sec (0.004)
F number f / 3.3
Exposure program 2
ISO speed rating 100
Compressed bits per pixel 4
Exif version 0210
Lens focal length 6.3 mm
Date and time original image was generated 2009:05:14 15:32:22
Date and time image was made digital data 2009:05:14 15:32:22
Meaning of each component 
Exposure bias 0
Maximum lens aperture 3.4
Metering mode 5
User comments
Supported Flashpix version 0100
Color space information 1
Exif image width 2592
Exif image length 3456
InteroperabilityOffset 2000
Scene type 
Digital zoom ratio 1
Focal length in 35 mm film 38 mm
Gain control 1
Interoperability index R98
Interoperability version 0100
Software used Microsoft Windows Photo Gallery 6.0.6000.16386
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