FI105387B - Method for preventing the growth of weeds - Google Patents

Description

105387

FIELD OF THE INVENTION The invention relates to a method for preventing the growth of weeds in the cultivation of beneficial plants.

In the past, the use of chemical pesticides has been widely prevented from growing weeds. However, due to their environmental disadvantages, 10 other methods have been developed. To control weeds, methods have been developed to prevent growth by applying a layer of plastic or paper with holes made for useful crops. Herbaceous cotyledons are not able to pass through such a layer of paper or plastic.

A disadvantage of the known methods is that there must be a hole in the paper for each crop, since the cotyledons of the growing crop cannot pass through the paper or plastic layer.

AU patent 669804 discloses a method for controlling weeds using. 20 methods of applying shredded paper to the ground and bonding the paper fibers together with water, wherein the paper layer prevents sunlight from penetrating the ground and '' weed cotyledons pass through the paper layer, thereby inhibiting weed growth. Paper shredding is applied to the germinated seedlings, and this method cannot be used for seeding, as otherwise the germinating useful plants * ·. 25 cotyledons remain below the paper layer and growth of the seedlings is prevented.

The object of the present invention is to provide a method for preventing the growth of weeds, which is capable of eliminating the above-mentioned disadvantages. This is accomplished as set forth in the characterizing part of claim 1.

In the process of the invention, a paper web of thin paper is applied to the cultivated land, on which the seeds are sown. The seeds may also be pre-bonded to the paper web, for example by means of glue. The width of the paper web 35 is preferably about 10 cm. A layer of soil about 1-2 cm thick is then applied over the paper web and the seeds, from which the weed seeds and germs have been destroyed by some known method, for example by heating. The soil may be, for example, sand, peat, 2,105,387 biotite, sawdust or mixtures thereof. The paper used in the method of the invention is biodegradable and so thin that when the seeds germinate, the roots of the plant protrude through a thin layer of paper, but the cotyledons of the weeds do not pass through the paper, thereby inhibiting weed growth.

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In another embodiment of the invention, the seedling is planted on soil applied to a paper web from which weed seeds and germs have been destroyed. A slightly thicker layer of soil can be used, preferably about 3-7 cm. Here, too, the roots of the beneficial plant protrude through the paper layer, but the cotyledons of the weeds 10 do not pass through the paper.

In the following, the invention will be described with reference to Figure 1 below.

Figure 1 is a cross-sectional view of the seeding obtained by the method of the invention.

In Figure 1, a paper web 1 is applied over the arable land 2, which in turn is seeded with the seeds of a useful crop, and a soil layer 3 has been applied thereto, whereby the weed seeds and germs have been removed. The seeds of the useful plant 20 have germinated as plant plants 4. Alternatively, ready-to-plant plants can be planted in soil layer 3. The roots of the seedlings 4 extend as they grow through a thin layer of paper 1. Instead, the cotyledons 5 of the weeds remain below the paper layer 1 and are unable to pass through it, thereby preventing the growth of the weeds.

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Claims (8)

1. A method of preventing weed growth in the cultivation of useful plants, characterized in that on the soil area (2) to be cultivated, a paper mat (1) is spread on which a layer of soil material (3) is propagated in which the weeds and crops are rendered harmless. Process according to claim 1, characterized in that the seeds of the beneficial plant are sown on the paper mat before the layer of soil material (3) is spread. 10 Method according to claim 2, characterized in that the layer of soil material (3) has a thickness of about 1-2 cm. Method according to claim 1, characterized in that the plants of the utility plant (4) are planted in the soil layer (3) which is spread on said paper mat (1). 15 Method according to claim 4, characterized in that the layer of soil material (3) has a thickness of about 3-7 cm. Method according to claim 1, characterized in that the seeds of the beneficial plant are attached to the paper mat. Process according to any of the preceding claims, characterized in that the width of the paper mat (1) is preferably about 10 cm. «« <• «· •« ·: V: 25 Process according to any of the preceding claims, characterized in that the soil material (3) is sand, peat, biotite, sawdust or a mixture thereof. • «• · • · a · · • aa a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a ____ a a a a a a a a a a a a a a a a