JPH054902A - Agricultural and horticultural oxygen-supplying composition - Google Patents

Abstract

PURPOSE:To obtain the subject composition, capable of stabilizing hydrogen peroxide at a low cost and supplying oxygen to the rhizosphere of crops and suitable for agriculture and horticulture by combining hydrogen peroxide with inorganic fertilizer salts and an inorganic acid. CONSTITUTION:An agricultural and horticultural oxygen supplying composition is obtained by combining hydrogen peroxide (in an amount of preferably about 1-6wt.%) with inorganic fertilizer salts (ammonium sulfate, ammonium phosphate, etc., are especially preferred and used in an amount of about 1-6wt.%) and an inorganic salt (sulfuric acid, phosphoric acid, etc., are especially preferred and used in an amount of about 0.05-1wt.%) and regulating its pH to about 2-4. The aforementioned composition is capable of suppressing decomposition of hydrogen peroxide by utilizing the relatively inexpensive fertilizer salts and inorganic salt and thereby readily supplying oxygen to the rhizosphere of crops.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a composition suitable for agricultural and horticultural use for supplying oxygen to the rhizosphere of crops, and more particularly to a stabilized hydrogen peroxide-containing agricultural and horticultural art. Oxygen supply composition suitable for use.

[0002]

BACKGROUND OF THE INVENTION Light, temperature, air (carbon dioxide, oxygen), water and nutrients are necessary for crops to survive, but it is especially important that the crop roots absorb water and nutrients from the rhizosphere. Is. At this time, in the roots of crops where water and nutrients are remarkably absorbed, their respiratory activity is high and they require a large amount of oxygen. Therefore, stable supply of oxygen to crop roots in the rhizosphere is a very important issue for crop cultivation.

For stable supply of oxygen, mechanical aeration such as plowing is conventionally used. Further, methods such as irrigation and spraying of hydrogen peroxide water are also known techniques, but hydrogen peroxide is an extremely unstable substance, and if decomposed, it means that water is sprayed, Stabilization of hydrogen peroxide is an essential technique. According to the related art up to now, a solid substance obtained by adsorbing hydrogen peroxide on powdered silica gel is suspended in hydrogen peroxide solution (Japanese Patent Publication No. 59-183).
No. 64), lignin sulfonate, and EDTA are added as stabilizers (Japanese Patent Publication No. 61-10428), and similar techniques include coexistence of oxyquinoline (Japanese Patent Publication No. 61-39284). and so on.

[0004]

The stabilizers used in the above-mentioned prior art are all expensive, and it is important to reduce the cost burden on the consumer as much as possible in the case of using for agricultural and horticultural purposes. The problem to be solved by the present invention is to stabilize hydrogen peroxide from the angle of how to use an inexpensive stabilizer.

[0005]

Means for Solving the Problems As a result of earnest research on how inexpensively hydrogen peroxide can be stabilized, the present inventor has found that the combination of hydrogen peroxide, inorganic fertilizer salts, and inorganic acid results in excessive hydrogen peroxide. The inventors have found that it is possible to suppress the decomposition of hydrogen oxide and completed the present invention. That is, the present invention relates to an agricultural and horticultural oxygen supply composition comprising hydrogen peroxide, inorganic fertilizer salts and inorganic acid. In particular, the pH of this composition
Of 2 to 4 are preferred.

Hydrogen peroxide can be a commercially available product, and its content in the composition is preferably from 1 to 6% by weight, and when it is 1% by weight or less, the oxygen supply to the rhizosphere is small and it is not effective. If it is 6% by weight or more, it is not common due to the regulation of deleterious substances in its handling. The inorganic fertilizer salts may be ordinary water-soluble fertilizers, such as ammonium sulfate, ammonium chloride, ammonium nitrate, sodium nitrate, lime nitrate,
Urea, potassium sulfate, potassium chloride, monoammonium phosphate, diammonium phosphate, monopotassium phosphate, dipotassium phosphate, potassium nitrate and the like, but preferably ammonium sulfate, monoammonium phosphate, diammonium phosphate, phosphoric acid Examples include monopotassium and dipotassium phosphate. The content of the inorganic fertilizer salt in the composition is preferably 1 to 10% by weight. This can be understood by considering the actual application of the composition. That is, it is because the activity of the root when oxygen is desired to be supplied to the rhizosphere is decreased by some stress, and in this case, it is important to prevent the fertilizer salt from being applied excessively.

The inorganic acid is sulfuric acid, phosphoric acid, hydrochloric acid, nitric acid, perchloric acid or the like, preferably sulfuric acid or phosphoric acid.
The concentration in the composition is an amount capable of adjusting the pH of the aqueous solution to 2 to 4, and is approximately 0.05 to 1% by weight.

[0008]

In the composition, the stability of hydrogen peroxide is improved by increasing the salt strength of the aqueous solution by adding an inorganic fertilizer salt, imparting a buffering property to alkali, and keeping the acidity of pH 2 to 4 for a long period of time. Has the effect of improving.

[0009]

【Example】

Example 1 An invention product and a control product having the composition shown in Table 1 were prepared,
The hydrogen peroxide concentration of each sample sealed in a white polyethylene bottle at room temperature was measured with time. The measurement results are shown in Table 2.

[0010]

[Table 1]                                 Table 1                   Composition of invention and control in Example 1 ────────────────────────────────────                         Invention Controls Controls Controls Controls                           A 1 2 3 ────────────────────────────────────                               g g g g   35% hydrogen peroxide water 140 140 140 140 140   Ammonium sulfate 25 25 0 0   85% phosphoric acid 2020   Water 833 835 858 860 ────────────────────────────────────

[0011]

[Table 2] Table 2 Hydrogen peroxide concentration (%) of each sample ────────────────────────────────── ── Invention Product Control Product Control Product Control Product A 1 2 3 ─────────────────────────────────── Hours 4.88 4.88 4.89 4.89 1 month later 4.83 4.64 4.79 4.74 2 months later 4.78 4.41 4.69 4.60 4 months later 4.73 4 .19 4.60 4.46 ─────────────────────────────────── Example 2 Table 3 The invention and the control product having the composition shown are prepared,
A stability test of hydrogen peroxide solution (JIS-1463) was carried out. For the operation, put the sample up to the marked line of the washed hard volumetric flask 50 ml, and heat it in a boiling water bath for 5 hours while keeping the marked line below the water surface of the water bath. After cooling, add water to the marked line. After that, hydrogen peroxide was quantified. Table 3 shows the hydrogen peroxide stability of each invention and control. Stability (%) = [hydrogen peroxide (%) after heating for 5 hours /
Hydrogen peroxide (%) before heating] x 100

[0012]

[Table 3]                                 Table 3             Composition and stability of invention and control in Example 2 ────────────────────────────────────                           Invention Product Invention Product Control Product Control Product Control Product                             B C D 4 5 6 ────────────────────────────────────   Composition (%)     Hydrogen peroxide 5.0 5.0 5.0 5.0 5.0 5.0     Monoammonium phosphate 8.0-5.0 ---     Ammonium sulfate − 9.0 2.0 9.0 − −     Phosphoric acid 0.2 0.2 − − − −     Sulfuric acid − − 0.2 − 0.2 − ────────────────────────────────────   Stability (%) 97 95 93 56 72 60 ────────────────────────────────────

[0013]

EFFECTS OF THE INVENTION According to the present invention, the decomposition of hydrogen peroxide can be suppressed by utilizing relatively inexpensive fertilizer salts and inorganic acids, which enables the roots of crops to be used in agricultural and horticultural use situations. It is possible to facilitate the supply of oxygen to the sphere.

Claims (5)

[Claims] 1. An agricultural and horticultural oxygen supply composition comprising hydrogen peroxide, an inorganic fertilizer salt and an inorganic acid. 2. The composition according to claim 1, which has a pH of 2 to 4. 3. Hydrogen peroxide is 1 to 6% by weight, inorganic fertilizer salts is 1 to 10% by weight, and inorganic acid is 0.05%.
The composition according to claim 1, which is -1% by weight. 4. The composition according to claim 1, wherein the inorganic fertilizer salts are sulfates and / or phosphates, and the inorganic acid is sulfuric acid and / or phosphoric acid. 5. The composition according to claim 1, wherein the inorganic fertilizer salts are ammonium sulfate and / or ammonium phosphate, and the inorganic acid is phosphoric acid.