FI62927C - FOERFARANDE FOER ODLING AV VAEXTER I SYNNERHET SKOGSVAEXTER - Google Patents

Description

[B] (11) ULUTUSJ PUBLICATION l J 1 3 UTLÄCCNI NGSSKRIFT oz 9 2 7 ^ '^ (SI) K ».lk.3 / lnc.a3 A 01 G 9/00 FINLAND — FINLAND pi) 792666 (22) HkkamUplJv · - Afttöfcntopdtg 27. 08.79 ^ * (23) Alkupllvt — GikifhKad ·! 27.08.79 (41) Tullut publication - Mlvlt offantll | 29/2/80

Patents * and registrars (44¾ NlhavUdp * ™ 1st month of date. 1? A,

Patent · och ragitteratyraltan '' Awbken ^ teidedi utUkrMkwi pubUurud 31'12 '° 2 (32) (33) (31) Pyydwty «mUnut-toiM prtortm 28.08.78 28.08.78 Sweden-Sweden (SE) 78090U7-9 78090U8-7 (71) (72) Sven Ake Ingerstedt, Komgatan 17, S-272 00 Simrishamn,

Uno Ragnvald Johnsson, Järrestad 10, S-272 00 Simrishamn, Sweden-Sweden (SE) (7 * 0 Forssen & Salomaa Oy (5I) Method for growing plants, especially forest plants -Förfarande för odling av växter, i synnerhet skogsväxter

The invention relates to a method for growing plants, in particular forest plants, in which the plants are grown in suitable growing media, such as so-called plant plates or in any other shaped body, which growing medium is on a suitable medium during growing.

In the cultivation of forest plants, be it in the open air in a nursery or in greenhouses, the aim is to obtain the best possible branched root system with the largest possible number of active root tips. This is a basic condition for plants to develop rapidly and achieve strong growth after they have been planted in the final place of cultivation.

One method of obtaining a well-branched root system is to prune the roots. This is based on the fact that a root whose tip has been cut or pruned off very quickly forms a series of new root tips, which together have a much greater ability to absorb water and nutrients than the original root tip. However, due to several practical problems, root pruning has so far been used only to a very limited extent, mainly for experimental purposes.

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The general object of the invention is therefore to provide a method for growing plants, in particular forest plants, which is suitable for growing low-cost, high-quality plants with very good growth potential, as well as for creating an improved growing unit with good handling and growing properties.

An embodiment of the method according to the invention is characterized in that the root system of the plants is periodically pruned by cutting off the roots mainly in the plane where the substrate is on the substrate, that a layer of coarse gravel or the like is used as a substrate for the substrate. whereby the cutting of the roots is carried out periodically by moving the cutting device along the lower surface of the net.

Another embodiment of the method according to the invention is characterized in that the root system of the plants is periodically pruned by cutting off the roots mainly in the plane where the substrate is on the substrate, and that a layer of coarse gravel or the like is used as a substrate for the substrate. or the like, wherein a second net is interposed between the plant support net and the substrate, and wherein the cutting of the roots is performed periodically by moving the nets relative to each other.

A third embodiment of the method according to the invention is characterized in that the root system of the plants is periodically pruned by cutting off the roots mainly in the plane where the substrate is on the substrate, that a layer of coarse gravel or the like is used as a substrate for the substrate pieces. and that the cutting device is moved periodically between the nets.

Figure 1 is a cross-sectional view of a growing medium and a group of plants placed thereon to show schematically the basic principle of growing according to the invention.

Figure 2 is similar to Figure 1, but shows a plant in a different growth medium, and is intended to show a method that is slightly more advanced than the method shown in Figure 1.

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Figure 3 is a cross-sectional view of a greenhouse in which the growing method according to the invention is used.

Figure 4 is a vertical sectional view of a breeding unit according to the invention immediately after germination.

Figure 1 schematically shows a ground layer 10 of an airy material such as gravel, sand or the like. A net 11, such as a plastic mesh with a suitable loop size, is placed on top of the ground layer. In the example shown, the network 11 contains network lengths ΙΙΑ, ΙΙΒ which are arranged in an overlapping manner. If several mesh lengths or pieces are used, the overlap is arranged in the same direction for a purpose to be explained in more detail later.

In the example of Figure 1, the plants 12 are grown vertically on top of the nets 11, and in Figure 1 the growing takes place in a so-called plant plate 13, i. in a body of suitable culture medium covered with a damp waterproof, preferably completely waterproof cover open downwards. For this reason, the roots of the plants are directed downwards and through an open hole by means of geotropism and a suitable water balance, whereby they grow downwards into layer 10. Now, according to the invention, root pruning is carried out at suitable intervals by cutting off the roots in one plane.

For example, the cutting of the roots can be performed by the relative movement between the net 11 and the layer 10, i. in practice by moving the network 11 along the platform 10.

The cutting can also be performed by moving a suitable cutting means, such as a knife, wire, wire or the like, between the net 11 and the base 10. In the illustrated example, a cut transfer means 14 in the direction of arrow A, whereby it is necessary that the lengths of the web are blurred in one direction, as described above.

It should be emphasized that the root tips of plants, in addition to spreading well downwards, are prevented from passing around the side corners and corners of the waterproof cover due to the fact that moisture conditions are more favorable downwards towards the soil than inside the waterproof cover due to water evaporation.

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The example of Figure 2 is very similar to the example of Figure 1, but differs in that the medium is now a cohesive medium body 16 which is pyramid-shaped. This body is placed in two networks 17,18, between which the cutting tool is moved in the direction of the arrow A to perform the root pruning by cutting in a plane. In this example, it might also be possible to perform root tip cutting with relative movement of the nets 17,18 at appropriate intervals.

Of course, in both examples, very many media pieces are placed side by side on the grid, e.g., several thousand.

In the example of Figure 3, a growing layer 20 suitable for the greenhouse floor 19 is provided with coarse gravel, for example, on which a plastic mesh with a suitable loop size is placed. Nets 21 with a conventional pallet size of 80 x 120 cm are then placed on the plastic net. Each of these mesh pieces has a plurality of substrate bodies, e.g., similar to the body 16 shown in Figure 2.

Rails 23 for the transverse bridge crane 24 run along the sides of the greenhouse, schematically showing a cutting device 25 for pruning the roots on the lower surfaces of the net pieces 21 in a manner similar to that shown above in connection with Figure 2. The cutting device may extend the full width of the entire greenhouse or, alternatively, may be of such a length that it performs root pruning in one longitudinal "plant row" at a time, as shown in Figure 3. The transverse crane 24 should best be equipped with nozzles 26 for spraying water, food, such as insecticides, etc. Furthermore, the crane 24 is best equipped with a lifting device 27 for easy distribution of the net pieces and the growing medium pieces thereon and for their easy lifting and removal from the greenhouse to the planting sites.

Figure 4 shows a vertical cross-sectional view of a growing unit in which plant 42 has developed a very well branched root system 43 which has been promoted by root pruning as described above.

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As shown in Figure 4, the medium unit is very suitable for the root pruning described above. Due to the very well-branched root system, which is then obtained, it is sufficient in the actual planting that the growing medium body is placed only in the ground, which has been prepared in a suitable manner in advance. If desired, only the lower parts of the substrate body can be covered with mineral soil or the like. In this way it is advantageously provided that the substrate body receives heat very satisfactorily so that the protruding substrate bodies easily receive the normally warmer ambient air.

Claims (3)

62927 A method for growing plants, in particular forest plants, in which the plants (12; 42) are grown in suitable growing media (13; 16), such as so-called growing plates or in any other shaped body, which growing medium bn on a suitable growing medium (10; 20) during growing that the roots of the plants (12; 42) are periodically pruned by cutting off the roots mainly in the plane where the substrate (13; 16) is on the substrate (10; 20), that a layer of coarse gravel or the like is used as the substrate (10; 20) , which supports the growth medium bodies (13) by means of a relatively coarse-meshed net (11; 21) or the like, the cutting of the roots being carried out periodically by moving the cutting device (14; 25) along the lower surface of the net (11; 21). A method for growing plants, in particular forest plants, in which the plants (12; 42) are grown in suitable growing media (13; 16), such as so-called growing plates or any other shaped body, which growing medium is on a suitable growing medium (10; 20) during growing that the roots of the plants (12; 42) are periodically pruned by cutting off the roots mainly in the plane where the substrate (13; 16) rests on the substrate (10; 20), and that a layer of coarse gravel or the like is used as the substrate (10), supporting the substrate bodies (16) by means of a relatively coarse-meshed net (17) or the like, wherein a second net (18) is interposed between the plant support net (17) and the substrate (10) and the root cutting is performed by periodically moving the nets (17,18) from each other regarding. A method for growing plants, in particular forest plants, in which the plants (12; 42) are grown in suitable growing media (13; 16), such as so-called growing plates or any other shaped body, which growing medium is on a suitable growing medium (10; 20) during growing that the roots of the plants (12; 42) are periodically pruned by cutting off the roots mainly in the plane where the substrate (13; 16) is on the substrate (10; 20), that a layer of coarse gravel or the like is used as the substrate (10) supports the growth medium bodies (16) by means of a relatively coarse-meshed net (17) or the like, and that the cutting device (14) is periodically moved between the nets (17, 18).