RU2211564C1 - Composite for control of chlorosis and stimulation of growth of vegetable crop - Google Patents

Abstract

FIELD: agriculture. SUBSTANCE: invention describes composite used for the control of chlorosis and stimulation of growth of vegetable crops containing components in the following ratio, wt.-%: ferric chloride or ferrous sulfate heptahydrate, or ferric (III) sulfate, 2-25; citric acid, 2-32; monoethanolamine, 3-30; water, the balance. Invention provides preparing the composite that protects plants against chlorosis effectively and enhances productivity of such vegetable crops as cucumber and tomato. EFFECT: enhanced effectiveness and valuable agricultural properties of composite. 2 cl, 2 tbl, 5 ex

Description

 The invention relates to agriculture, in particular to compositions for controlling chlorosis of crops and stimulating their growth and development.

 The iron complex of polyethylene polyamine polyacetic acid is known for controlling lime chlorosis, which is used in the form of a 0.10-0.15% aqueous solution (ed. St. 163842, IPC A 01 N 37/44, 1964).

 However, this chemical compound is not effective enough.

 A known composition for controlling diseases of fruit crops, including 1.5-2.5% aqueous solutions of iron sulfate and calcium hydroxide with a ratio of 1: 0.5-1 and a solution pH of 6-8 (RF patent 2166851, MKI A 01 N 59/06, 2001).

 The known composition is not effective enough.

 Closest to the proposed invention is a composition for controlling chlorosis of crops, which is an aqueous solution of ferric chloride (Soviet Encyclopedia. M., 1990, p. 139).

 However, this composition is not effective enough to combat chlorosis, does not allow to stimulate the growth and development of crops and does not provide a yield increase.

 The basis of the present invention is the creation of a composition for combating chlorosis of crops, while stimulating their growth and development.

The problem is solved so that the composition for combating chlorosis of crops, including the iron salt and water, additionally contains citric acid and monoethanolamine in the following ratio of components, wt.%:
Salt of iron - 2-25
Citric Acid - 2-32
Monoethanolamine - 3-30
Water - Else
As iron salts, for example, FeCl ₃ ferric chloride is used according to TU-6-00-573450 or FeCl ₃ • 6H ₂ O according to GOST 4147-74; iron sulfate FeSO ₄ • 7H ₂ O in accordance with GOST 4148-78; iron (III) sulfate Fe ₂ (SO ₄ ) ₃ • 9Н ₂ O according to GOST 9485-74; monoethanolamine according to TU 6-09-2447-90; citric acid according to GOST 908-79.

 The use of these components in the proposed composition in experimentally established quantitative ratios allows you to get an effective product to combat chlorosis while stimulating the growth and development of plants.

 The proposed composition is obtained by simple mixing of these components.

 We give specific examples of the preparation of compositions.

 Example 1

To 45.4 g of water, 12.9 g of FeCl ₃ (ferric chloride) and 16.7 g of citric acid are added with stirring. After complete dissolution of these components to the mixture slowly, in small portions with stirring, add 30.0 g of monoethanolamine, avoiding strong (above 50-70 ^o C) heating of the mixture.

 Examples 2-5 are performed analogously to example 1, changing the quantitative and qualitative composition of the components. The compositions of examples 1-5 are shown in table 1.

 The resulting products are dark brown liquid with a pH of 6-8 and are fertilizer-protective mixture or its concentrate.

 The compositions are tested as a fertilizer and protective agent for vegetables grown in open or closed ground. Foliar treatment of plants in open ground is carried out by spraying, in closed ground - through the sprinkler system. Working solutions for treating plants are prepared from these compositions by adding the calculated amount of water, so that the iron content reaches 40-120 mg / L.

The processing of crops is carried out in one of the following stages of plant development:
1. After 1-2 weeks of disembarkation into the soil (the iron content in the working solution is 40 mg / l).

 2. During the budding period (iron content in the working solution is 60 mg / l).

 3. At the beginning of fruiting (the iron content in the working solution is 120 mg / l).

 The consumption rate of the working solution is 1.5 liters per 10 m.

The effectiveness of the claimed composition is determined in comparison with the prototype in comparable conditions: by increasing the chlorophyll content (in mg per 1 m ^{2 of} plantings), by increasing the leaf surface area (in m ² / ha) and the amount of yield increase (in% and kg / m ² )

 In the table. 2 shows the test results of the composition in closed ground for crops: cucumber of the Rodnichok variety and tomato of the Red Arrow variety.

 In addition, the test data of the prototype with respect to the same crops under similar conditions are given (6).

 Analysis of the data presented in tables 1 and 2 shows that the proposed composition more effectively protects plants from chlorosis, stimulates their growth and development, allowing to obtain a significant increase in yield.

Claims (1)

Composition for combating chlorosis and stimulating the growth of vegetable crops, including iron salt and water, characterized in that it contains ferric chloride or iron sulfate or iron sulfate (III) and additionally citric acid and monoethanolamine in the following ratio of components wt. %:
Ferric chloride, or iron sulfate, or iron (III) sulfate - 2-25
Citric Acid - 2-32
Monoethanolamine - 3-30
Water - Else

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