As part of the silage covers preparation process, two types of oxygen barrier are required. They are the oxygen permeable barrier and the non-permeable oxygen barrier. Both serve to keep the soil moist and to protect it from the effects of water and moisture. An oxygen permeable barrier is a permeable membrane that allows oxygen to pass freely through the soil in small quantities. The barrier usually consists of a layer of soil or clay under the soil.
Another type of oxygen barrier is made of organic materials such as hay, weed beds or an artificial layer of soil under the soil. This type of silage cover also keeps the moisture out. However, the advantage of organic silage coverings is that they cannot be completely oxygenated (meaning they cannot absorb the oxygen). The silage cover must have a non-permeability quality. Otherwise, the moisture would simply get in the silo and be carried inside.
So, what is a suitable type of silage cover? The most common types are the permeable and non-permeable type. The plaque refers to a layer of mud or clay under the earth that acts as an oxygen-permeable barrier. However, this is not very effective because it can quickly deteriorate if pressure is applied to the layers. This type of cover is therefore used primarily in conjunction with a soil-filled bunker.
A patented folding machine is one example of Silage covers with a porous quality, which allows air to pass through. In this case, a layer of plastic or other absorbent is added under the topsoil layer. The second layer of clay is then poured over the plastic, and the folded overlayer is inserted into the bunker. The air that passes through the silage structure is again oxygenated, and the resulting closed structure becomes moisture-proof. This type of folded silage cover is very effective in preventing the growth of mould.
Non-permeable types of covers work by allowing moisture to escape out of the structure. Some examples are greenhouses, storage silos, grain elevators, and barns. They can also be combined with UV protection devices, like special UV resistant paint. However, the most significant disadvantage of non-permeable silos is that they can be easily penetrated by termites looking for silo openings.
Meanwhile, Silage covers are perfect for protecting both the upper and lower soil layers from oxygenation. These silage structures effectively prevent moisture from reaching the ground forages while also maintaining a high level of organic fertilization for the crop yield. However, they are best used in conjunction with a soil-filled bunker.
There are several advantages to using these two different types of Silage covers, but they all boil down to one crucial factor – protecting your plants. A silage plastic cover will provide an ideal solution for preventing your forage crops from succumbing to moisture-related diseases. However, you won’t get the same results with a two mil film cover. It is explicitly designed to protect against moisture, which means that it won’t prevent fungi’ growth, which could ultimately destroy your crop.
The final type of protection is a type of physical barrier. These are typically installed at the silo pit or deeper inside the pit. Silage bunker covers are the preferred option because they do a better job of trapping the moisture within the structure, preventing mould from forming. However, the UV protection of the greenhouse silage plastic could be negated if exposed to direct sunlight, often used together with a UV barrier film.
You may visit https://silagewrap.com.au for added knowledge on silage and baling.