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Medium for cultivation

A culture medium and medium technology, which can be used in medium, cultivation, soilless cultivation, etc., can solve the problems of cultivation cost, difficulty in taking root, and poor harvest rate.

Inactive Publication Date: 2002-11-27
EBARA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem with the traditional solid medium method is that it takes a lot of time for cultivation, and it is difficult for plants to take root on media such as sand and gravel, so the harvest rate is not good.
However, what kind of physical properties or particle size should be possessed by the pumice stone suitable for use as facility media has not been reported so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A schematic diagram of the cultivation device used in this example is shown in Figure 5 . A cultivation box 101 with an area of ​​450mm×1200mm was installed, filled with SHIRASU pumice 102 measured by Kagoshima Prefecture to a depth of 80mm, and salad vegetable A was cultivated between July and August. Cultivation trials were conducted in Shizuoka Prefecture. The SHIRASU pumice 102 used is sieved with a 5660 μm sieve and a 1000 μm sieve to obtain a particle size of 1.0mm-5.6mm, and is obtained by drying in a heating furnace at 250° C. for 4 hours. The water content of pumice is 0.2%, and the saturated water permeability of pumice is 3.4×10 -1 cm / sec, air permeability of 29cm / sec (dry sample) and 27cm / sec (wet sample), and cation exchange capacity of 3.4meq / 100g. The porous water discharge pipe 104 is horizontally erected on the top of the cultivation box 101, and the water discharge pipe wall is scattered and arranged with a certain interval of water discharge holes...

Embodiment 2

[0052] Cultivation trials were carried out using pumice medium mixed with charcoal. As the pumice stone, the same SHIRASU pumice stone sample as in Example 1 was used. Grinding charcoal (carbonized coconut shell) to obtain charcoal particles with particle size adjusted to 1-2 mm, according to the weight ratio of charcoal and SHIRASU pumice, respectively 0% (A), 10% (B), 20% (C) , 30% (D), 40% (E), and 50% (F) were blended into six mixed media. Grow salad greens on each medium. Cultivation trials were conducted in Okinawa Prefecture. Sow at the end of May, plant on the 17th day after sowing, and harvest after 32 days. The irrigation method is dripping and hanging liquid, and the perfusion volume is 50ml / plant at the seedling raising stage and 60ml / plant at the planting stage. Fertilizer is applied liquid fertilizer. 21 plants were harvested on each medium, and the average weight (weight of the portion excluding the root) of salad vegetables per plant was measured. The res...

Embodiment 3

[0056]A continuous cropping experiment was carried out with pumice medium mixed with charcoal. As the pumice stone, the same SHIRASU pumice stone sample as in Example 1 was used. Adjust the particle size of powdered charcoal (carbonized coconut shell) to the same size as the SHIRASU pumice sample (particle size 1-5.6mm), and the weight ratio of charcoal to SHIRASU pumice is 0% (A), 10% respectively (B), 20% (C), 30% (D), 50% (E), 80% (F), 100% (G) were compounded into seven mixed media. Various mixed media were collected at 800 g per pot, placed in a heat-resistant beaker with a capacity of one liter as a medium, and a leguminous shrub—Brassica Rapa var. pervidis was cultivated on each medium. Cultivation trials were conducted in Shizuoka Prefecture. Plant on about 10 days after sowing, and harvest about 30 days later. Carry out 10 continuous cropping. As the nutrient solution, what was obtained by adding nutrients to river water as a base was used. The ratio of applied n...

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Abstract

An object of the present invention is to provide a pumice medium for protected cultivation showing excellent characteristics. The culture medium of the invention is characterized in that the medium is composed of granular pumice with a saturated water permeability of 0.3-0.8cm / sec and a dry and wet sample air permeability of 15-40cm / sec. Furthermore, in another embodiment of the present invention, there is provided a culture medium in which charcoal is mixed with granular pumice having the above-mentioned physical properties.

Description

technical field [0001] The present invention relates to a culture medium, more specifically, to an ideal culture medium for planting such as vegetables, fruit trees, flower plants, etc. by means of conservation cultivation, which saves water and resources. Furthermore, the present invention relates to a culture medium capable of growing value-added crops by increasing the sugar content of tomatoes, watermelons, etc. among fruits and vegetables by adjusting the water content of the medium. Background technique [0002] Cultivation of high-grade vegetables such as salad vegetables and tomatoes may be carried out in factory-style cultivation under strict environmental management, not on cultivated land, but in open-air facilities or greenhouse facilities. This cultivation method is called protected cultivation. [0003] As a high-grade vegetable and fruit tree plant, the excellent protected cultivation method is the culture liquid cultivation method. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00
CPCA01G24/15A01G24/42A01G24/10A01G24/12C09K17/02
Inventor 黑田哲生大塚秀光楢崎祐三神谷一郎梅田到林英明
Owner EBARA CORP
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