JPS5920645B2 - Germination and rooting agent for useful plants - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a germination and rooting promoter for useful plants, which contains wood vinegar as an active ingredient.

Wood vinegar has long been used as a raw material in the organic chemical industry in Japan, but in recent years it has been put to practical use as a deodorizing agent, drawing attention to its excellent deodorizing effect.

In addition, since it is effective against some soil pathogenic bacteria, numerous research results have been shown such as soil fungicide, nematicidal action, and inactivation of soil-transmitted plant viruses.

In addition, research is also being conducted in other countries to apply this technique to smoked foods.

In recent years, agriculture in Japan has been rapidly modernized, and it goes without saying that the technology for cultivating useful crops has greatly improved, contributing greatly to the improvement of agricultural productivity.

For example, various techniques have been developed and used, such as direct seeding techniques for paddy rice cultivation and mechanical transplanting techniques for rice transplanting.

However, a number of problems have been pointed out as a result of the spread of this new technology, particularly in promoting germination and uniformity in direct sowing.
Another important issue is the development of germination and rooting promoters for growing healthy seedlings with strong rooting ability that are suitable for mechanical transplantation from conventional seedling raising methods.

In addition, in the cultivation of field crops and vegetables, for example, sowing of Chinese cabbage, radish, tomato, eggplant, watermelon, cucumber, carrot, soybean, pea, tobacco, beet, etc.
Promoting germination, rooting, and establishment has important significance when raising seedlings and planting.

In addition, in recent years, greening projects have been actively carried out to preserve the environment, and the growth and cultivation of greening plants has been promoted, but the success or failure of germination, rooting, and establishment is directly affected by the results of the greening project. It is no exaggeration to say that they are connected.

In view of these points, the present inventors researched drugs that have the effect of promoting the germination, rooting, and growth of plants, and as a result, they discovered that pyroligneous vinegar has an excellent effect of promoting the germination, rooting, and growth of plants, and completed the present invention.

The wood vinegar used in the present invention is an extracted component from natural wood, has low toxicity to warm-blooded animals and fish and shellfish, is easily degradable, has no residual toxicity, is highly safe, and does not cause environmental pollution. There is no need to worry, and it is also extremely economical.

In addition, it is simple and highly effective, making it extremely useful as a germination, rooting, and growth promoter.

When carrying out the present invention, the pyroligneous acid solution may be used as it is, diluted with water to a predetermined concentration, or used in common agricultural chemical formulations such as culture soil, compost, peat moss, humus, charcoal powder, talc, clay, perlite, vermiculite, etc. It can be used by being mixed or adsorbed onto a carrier.

Furthermore, the range of application can be widened by using it in combination with agricultural chemicals or fertilizers, etc., if necessary.

The application concentration of the germination and rooting promoter of the present invention is 100 to 100,000 times that of pyroligneous vinegar to obtain a preferable effect.

Furthermore, it goes without saying that the dosage can be adjusted as appropriate depending on the type of plant or the situation.

In addition, the best time to apply is before or after sowing or transplanting, when useful plants should be expected to germinate, root, and take root quickly, such as when planting and transplanting. Rooting can be promoted during the seedling raising period or during the post-establishment growth period for the purpose of obtaining vigorous and healthy seedlings.

In addition, when applying it, it may be applied to seeds of useful plants and then sown, or it may be mixed into the soil before and after sowing.

In addition, it may be applied to the soil before transplanting the seedlings, mixed into the planting hole, or applied to the base of the plant after transplanting.

During the growing season, apply at the base of the plant, during intercultivation, and at the time of soil bundling.

It goes without saying that an appropriate method should be adopted depending on the cultivation form.

Next, a detailed explanation will be given with reference to examples.

Example 1 Seed Germination Test A Petri dish with a diameter of 9 crIL is lined with filter paper, pyroligneous vinegar is diluted with water to a predetermined concentration, IOmA is injected, and 10 selected healthy seeds of each test plant are sown on a paper germination bed.

Thereafter, the plants were placed in a constant temperature chamber at 24° C., and the promoting effect on seed germination of each plant was investigated based on the germination force on the 3rd day and the germination rate on the 100th day.

For each treatment group of each plant, 10 petri dishes were used, and the germination status was examined with a total of 100 seeds.

The results are shown in Table 1.

Example 2 Rooting test on regenerated roots of plants (1) Barley (variety: Golden melon) was sown in a growth box and grown seedlings were used.

After germination, the primary leaves were extracted, and the roots were thoroughly washed with water to remove the adhering seed coat.

(2) Cultivate rice (variety: Nipponbare) in the same manner as in (1) above, use seedlings with the second true leaves developed, and remove the attached seed coat and roots in the same manner as in (1) above. I tried it.

A large test tube with a diameter of 2 Q mvt is filled with pyroligneous vinegar diluted with water to a predetermined concentration.

The stems of the seedlings prepared in (1) and (2) above were fixed at the mouth of the test tube with a cotton plug so that the roots were located 1 cIrL below the liquid surface. ~
It was kept at 26° C. for 14 days, and the reduced amount of the drug solution was replenished with the same concentration at appropriate times.

In both cases, the lighting conditions are indoors, placed near a window away from direct sunlight.
Using 5 plants in a test tube and 10 test tubes in each treatment group, the maximum root length and the number of roots were measured on a predetermined day.

The results are shown in Table 2. Example 3 Tomato seedling seedling survival test Tomatoes (variety: Hikari) grown by a conventional method were tested.

The pyroligneous acid solution was evenly mixed and adsorbed to vermiculite to a concentration of 40% (weight ratio), and 500 g of fully ripened compost per hole was added to the planting hole, and the above-mentioned pyroligneous solution and vermiculite mixture]
0'Of was mixed well with the potting soil, tomato seedlings were planted, watered thoroughly at the base of the plants, and then covered with straw.

For the control plot, vermiculite, which does not adsorb pyroligneous vinegar, was used.

Ten plants were used in each test plot, fertilized and managed according to conventional methods, and the status of established growth was examined one month after planting.

The results are shown in Table 3.

Example 4 Chinese cabbage germination and growth test A clay pot with a diameter of 20 crrL was filled with steam-sterilized field soil, and 25 Chinese cabbage seeds (variety: Spring and Autumn Chinese cabbage) were sown per pot to investigate germination and growth.

Before sowing, the seeds were soaked in water with a solution in which pyroligneous vinegar was adsorbed and mixed to a concentration of 1% (by weight) to the clay, and the seeds were immediately sown.

For the control group, clay that does not adsorb wood vinegar was used.

Four pots were used in each test plot, and the management was carried out in a greenhouse according to conventional methods.The germination force after 3 sowings, the germination rate after 10 days, and the growth after 1 month (average plant height, number of leaves, fresh weight) were determined. I investigated the situation.

-The results are shown in Table 4.

Example 5 Rooting and Growth Test of Young Rice Seedlings A seedling box (30X45X5cIfL) was filled with field soil, and pre-germinated paddy rice (variety Nipponbare) seeds were sown. Immediately, pyroligneous acid solution was diluted with water to a predetermined concentration. 2001 rLl per box was sprayed over the entire surface through the pore outlet.

The plants were then covered with soil and kept in a greenhouse for one week. Ten plants were taken from each box from 10 locations and the plant height, tap root length, and number of germination were examined.

The results are shown in Table 5.

Claims (1)

[Claims] 1. A germination and rooting agent for useful plants, characterized by containing wood vinegar as an active ingredient.