I want to produce a product. This product should be in the form of a soft cover at first, after it is applied, it should harden with the sun rays and air contact and take the form of a tunnel, then it should consist of materials that will melt into the soil and become fertiliser within an average of 20 days. This product will be used in the field of agriculture. By covering the soil after the seeds are sown, it will prevent pigs, badgers, birds from removing the sown seeds from the soil and will provide protection against spring frosts.