JPH09140260A - Preventing agent of heartrot of head vegetable and prevention of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a preventing agent of a heartrot of a head vegetable, consisting of calcium formate and boron as active ingredients, capable of preventing the heartrot well and obtaining a cabbage, a Chinese cabbage, etc., of an improved quality. SOLUTION: This preventing agent of a heartrot of a head vegetable consists of calcium formate and a water soluble boron compound such as boric acid as active ingredients, and the blending ratio of the calcium formate to boron is (99/1)-(50/50). Further, the aqueous solution (its diluting ratio is preferably 400-500 fold) of the above preventing agent of the heartrot of the head vegetable is preferably sprayed in the period from the time of the permanent planting of the head vegetable until the starting of its head formation.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an agent for preventing coring of headed vegetables and a method for preventing coreding of headed vegetables.

[0002]

2. Description of the Related Art In the case of heading vegetables such as cabbage, Chinese cabbage, lettuce and the like, the core portion of the ball sometimes turns black, which is called cored. If such cored bulbous vegetables reach the consumers' hands, the reputation of their production areas and farmers will decline, etc.
This is a big problem for farmers because it may cause distrust of consumers.

However, since it is not possible to determine the coredness based on the appearance of the headed vegetables alone, it is not possible to stop the shipment of the centered headed vegetables by judging the presence or absence of the centered vegetables at the time of shipping, which is a preventive measure for the producing farmers. There was no effective measure for. One of the causes of this coring is said to be calcium deficiency. For example, it is known that the administration of calcium through soil can suppress the occurrence of coring, but a sufficient suppressing effect is obtained. Has not reached.

[0004]

From such a background,
There has been a demand for a technique for satisfactorily preventing coring of headed vegetables. The invention of the present application meets these needs.

[0005]

The anticorrosion agent for headed vegetables according to claim 1, which is adopted as a means for solving the above problems, contains calcium formate and boron as active ingredients. The anti-coring agent for heading vegetables according to claim 2,
The anticorrosion agent for heading vegetables according to claim 1, wherein the boron is in the form of a water-soluble boron compound.

According to a third aspect of the present invention, there is provided an anticorrosion agent for headed vegetables according to the second aspect, wherein the water-soluble boron compound is boric acid. The anti-corrosion agent for heading vegetables according to claim 4 is the anti-coring agent for heading vegetables according to any one of claims 1 to 3, wherein the compounding ratio of calcium formate and boron is 99: 1.
~ 50: 50.

The method for preventing coring of headed vegetables according to claim 5 is characterized in that an aqueous solution of the agent for coring of headed vegetables according to any one of claims 1 to 4 is sprayed on headed vegetables. The method for preventing coring of headed vegetables according to claim 6 is the method for preventing coring of headed vegetables according to claim 5, characterized in that the aqueous solution is sprayed during a period from the time of planting heading vegetables to the start of heading. .

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An agent for preventing coring of headed vegetables according to any one of claims 1 to 4 is, as described in claim 5 or 6,
It is sprayed directly on headed vegetables as an aqueous solution. This technique is
It is usually called foliar spray.

Calcium formate, which has been sprayed as an aqueous solution, is efficiently absorbed from the leaf surface of headed vegetables and reaches the plant body. When calcium was administered through soil, the calcium absorption efficiency of heading vegetables was often influenced by the soil components and the amount of rainfall, and the administered calcium was not always absorbed sufficiently. Therefore, foliar spray is
It is superior to soil administration in terms of absorption efficiency.

It is known that calcium plays an important role in enhancing the assimilation power of plant cells, nutrient translocation in plants, water metabolism and the like. In addition, calcium deficiency has many similarities to boron deficiency, because calcium, along with boron, plays an important role in maintaining the structure and function of the cell wall. In plant cells, the cell wall that surrounds the cell membrane is taken up by the middle lobe of almost pure pectin to become calcium pectate, firmly binding the cells together and playing a role as the skeleton of the plant body. There is.

From such a role of calcium, it is considered that the calcium content absorbed from the leaf surface is distributed in large amounts particularly in the core portion of the heading vegetable in which cell division is active. And, it seems that the core is prevented from being cored by the lack of calcium in the core portion.

Boron plays an important role in the above-mentioned formation of pectin and is involved in the absorption and transfer of calcium, and it is known that when boron is insufficient, the absorption and transfer of calcium become insufficient. ing. It is considered that the addition of boron to calcium formate further enhances the above-described action of preventing coring by calcium.

The calcium formate used in the present invention is water-soluble and has a solubility of 16.6 g / 100 g (20 ° C.).
Boron is used alone or in the form of a water-soluble compound. Examples of the water-soluble boron compound include boric acid and borates of alkali metals such as borax, but any boron compound other than these can be used as long as it is water-soluble.

The method for preventing coring of headed vegetables according to the present invention is as follows:
It can be carried out during the growing period of the headed vegetables, but it is preferable that the period from the time of planting to the start of heading, that is, before the hypertrophy stage of the heading. If the anti-coring agent for heading vegetables is given before the start of heading, the amount of calcium and boron in the plant body will be sufficient, and it will be possible to prevent corening effectively because there will be no lack of calcium or boron during the time of heading enlargement. by. Also, if it is before heading, the heading vegetable leaves are open, so it is possible to spray directly on the core of the vegetable,
This is because the area of leaves to be sprayed is large and the absorption efficiency is good.

On the other hand, after the start of heading, the effects of calcium and boron are not expected to be sufficient and the target of foliar application is limited to the outermost leaves, so that the absorption efficiency decreases. Therefore, the implementation of the method for preventing coring of headed vegetables is suitable from the time of planting to the start of heading.

Since there is a limit to the amount of adhering to the leaf surface of the heading vegetables, it is preferable to apply a plurality of times separately rather than a large amount at a time. In the case of spraying a plurality of times, it is preferable to set the spraying interval to about one week because efficiency is improved when the next spraying is performed after the previously sprayed amount is absorbed.

The dilution ratio may be appropriately determined according to the degree of growth of the plant body, the type of heading vegetables, the variety, etc., but in order not to cause an excess of boron, boron is used as a standard (for example, the spray solution). It is preferred to determine the dilution factor (so that the concentration of boron in it is less than 0.1%). Normally, the dilution ratio is 300, depending on the mixing ratio of calcium formate and boron.
It is in the range of double to 800 times, preferably 400 to 500 times.

The anti-coring agent for headed vegetables can be completed, for example, by weighing and mixing powdered calcium formate and a boron compound in an appropriate mixing ratio. To make this an aqueous solution,
It suffices to dissolve in a desired amount of water. It is also possible to prepare a high-concentration aqueous solution of the anticorrosion agent for headed vegetables and dilute it at the time of use. (Example) Next, an example in which the present invention is applied to cabbage will be described. (1) Preparation of anti-coring agent for headed vegetables: 1650 g of calcium formate and 350 g of boric acid were weighed and mixed to obtain 2000 g of an anti-coring agent for headed vegetables. The ratio of calcium formate to boron is approximately 100: 3.7. (2) The anticorrosion agent for headed vegetables obtained in (1) was dissolved in water to obtain 1000 times, 500 times, and 400 times spray solutions. 1000 times, 500 times, 4 in cabbage fields
Four divisions of 00 times and comparative areas are set up, 1000 times application solution is 1000 times application solution, 500 times application is 500 times application solution, 400 times application is 400 times application solution. Was sprayed on the leaves at the time of planting, and then every 7 days, the leaves were sprayed 4 times, for a total of 5 times. It was not sprayed on the comparison plot. In addition, there is no difference in fertilization and the like in each section except for the presence or absence of the application of the application liquid.

Arbitrarily 30 from cabbage harvested from each ward
When 0 strains were extracted and each strain was cut vertically to examine for the presence or absence of coring, the results are shown in Table 1.

[0020]

[Table 1]

As shown in Table 1, 400 times and 50 times
Although no centering occurred in the 0-fold group, centering occurred in the 1000-fold group and the comparative group. From this,
It can be seen that a dilution ratio of about 400 to 500 times is effective in preventing centering, and 1000 times cannot achieve the expected effect.

Although the embodiments of the present invention have been described with reference to the examples, the present invention is not limited to the examples, and various embodiments can be implemented without departing from the gist of the present invention. It goes without saying that you can do it.

[0023]

As described above, the use of the anti-coring agent for heading vegetables according to claim 1 can prevent coring. In the anticorrosion agent for heading vegetables according to claim 2, boron is in the form of a water-soluble boron compound. There are various water-soluble boron compounds, and various compounds can be used.

In the agent for preventing coring of headed vegetables according to claim 3, the water-soluble boron compound is boric acid. Since boric acid is industrially produced, it is possible to obtain a large amount of boric acid of constant quality. In the anticorrosion agent for heading vegetables according to claim 4, the compounding ratio of calcium formate and boron is 99:
It is 1 to 50:50. Such a blending ratio is convenient for use at an appropriate dilution ratio. In particular, if the dilution ratio is set with boron as a reference, there is no possibility that the bulb vegetables will be damaged by excess boron.

[0025] According to the method for preventing coring of headed vegetables from claim 5, it is possible to prevent coring of headed vegetables. According to the method for preventing coring of headed vegetables from claim 6, coring of headed vegetables can be prevented more reliably.

Claims (6)

[Claims] 1. An agent for preventing coring of headed vegetables comprising calcium formate and boron as active ingredients. 2. A heading inhibitor for headed vegetables according to claim 1, wherein the boron is in the form of a water-soluble boron compound. 3. The heading inhibitor for headed vegetables according to claim 2, wherein the water-soluble boron compound is boric acid. 4. The heading inhibitor for headed vegetables according to claim 1, wherein the compounding ratio of calcium formate and boron is 99: 1 to 50:50. Anti-gumming agent. 5. A method for preventing coring of headed vegetables, which comprises spraying the heading vegetable with an aqueous solution of the heading vegetable anti-coring agent according to claim 1. 6. The method for preventing coring of headed vegetables according to claim 5, wherein the aqueous solution is sprayed during the period from planting the headed vegetables to the start of heading.