Seed paper for hydroponic culture, and apparatus for producing seed paper

Abstract

The present invention inexpensively provides seed paper whereby it becomes possible to achieve the labor-saving in a seeding work to a great extent in the production of an immature vegetable or the like by hydroponic culture. A thin-paper-type long base sheet, which is made from water-degradable paper such as toilet paper, is fed from a base sheet feeding section (A), and then a water-soluble adhesive agent is applied at predetermined intervals on one surface of the long base sheet in an adhesive agent application section (C). Multiple seeds (13) are placed on the one surface of the long basesheet (11), and then the long base sheet (11) is drawn to remove seeds that are not adhered to the adhesive agent from the long base sheet. Subsequently, the long base sheet (11) is sandwiched and crimped between a pair of rollers (51, 52) that are softer than the seeds (13) in a base sheet transfer / seed crimping section E to produce a seed paper (15). in the long base sheet (11) in the seed paper(15), multiple recesses are provided each of which has almost the same planar shape as that of each of the seeds (13) of interest and also has a depth that is one to ten times smaller than the heightof each of the seeds of interest, and the seeds of interest are adhered onto the inside of each of the recesses with a water-soluble adhesive agent.

Description

technical field [0001] The present invention relates to a seed paper used for greatly saving labor in sowing operation in hydroponic cultivation using a blanket-like medium, hydroponic cultivation requiring uniform sowing of many seeds, and young leaves. Background technique [0002] Since immature vegetables such as young leaves that have become popular in recent years have a small plant body, there is a lot of waste at normal sowing intervals, and the yield per unit area becomes low. Therefore, in order to improve cultivation efficiency and increase yield, it is necessary to sow seeds at a pitch narrower than that of general vegetables. If seeds are sown at a pitch of, for example, 15 mm, 4,400 seeds are sown per square meter. However, if sowing by manpower, a large amount of labor costs are required. Therefore, labor-saving techniques are particularly required in such fields. [0003] In order to solve this problem, a belt called a sowing belt, such as a belt made of PV...

AI Technical Summary

Problems solved by technology

However, in either method, an adhesive is applied to a relatively strong paper substrate, and the seeds are fixed using the adhesive, and a protective layer made of PVA or paper is provided on the surface to prevent the seeds from falling off, etc. It is the main object. In addition, either method needs several weeks or months as the cultivation of general vegetables during the cultivation period, and it cannot be said that it is the most suitable for sowing immature vegetables with a short growth period and seeds for seedlings. good

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