Polythene

BLACK POLYTHENE

Is a heavy duty black polythene which is used as a cheaper type of groundcover to prevent weeds growing in beds.

Advantages are it is relativity cheap to buy, it is easy to slit and to plant though but it does not let any water pass through so the crop must be irrigated underneath the cover.

Widths
Standard widths are 1.6m, 1.8m and 2.0m

Lengths
Lengths available from 100m to 1000m

Product
Microns
Air Permeability l/m2/sec
Shade Value
Black Poly
40
Zero
98%

BLACK BIODEGRADABLE POLY

This is a very light weight bio poly made out of corn starch that is totally biodegradable. It will breakdown into water and C02 inside 14 – 18 weeks. It is ideal for organic production as it will keep the weeds down until the crop gets established. As regulations get tougher on herbicides and herbicide harvest intervals more and more salad growers are experimenting with bio degradable poly.

Advantages are herbicides are not required so there is no harvest interval, it helps retain moisture in the soil helping germination and it stops rain and soil splash onto the leaves. If the cover has not totally degraded by the time the crop is harvested it can be incorporated in to the soil and it will continue to degrade without sunlight. Other non-starch based bio poly covers will not degrade unless they are exposed to sunlight so it is important to use a starch based product.

Widths
Standard widths are 1.6m, 1.8m and 2.0m

Lengths
Lengths available from 100m to 1000m

Product
Microns
Air Permeability l/m2/sec
Shade Value
Bio Poly
15
TBC
TBC