SU577962A3 - Fertilizer - Google Patents

Description

(54) FACILITIES

preparations, such as solutions, emulsions, suspensions, poronges, pastes and wounds, which can be obtained, for example, by mixing the compounds with diluents and / or solid carriers and other auxiliary preparations.

The application is carried out by conventional agricultural methods by soil application, spraying, spraying, dusting, etc.

The amount of Prussian compounds used depends on the soil difference, on the nutrient requirements of the plants, ranging from 0.1 to 100.0 kg / ha of active ingredient.

Example. Elimination of iron deficiency in grape plants.

Plants were grown under greenhouse conditions on the Hoagland and Agopop nutrient mixture, which is characterized by an insufficient iron content. In the five-leaf phase, the test plants were transplanted onto a solution, to which the desired amount of iron-containing fertilizer was previously added. The results of the experiment are shown in Table. I. Estimation of the intensity of green color is as follows:

I - 0% chlorotic (dark green)

3 - 2 5% - but x; 1 short

5-50% chlorine

7 - 75% hlorotishu

9 - 100% chlorotic (compared to untreated control plants).

Example 2. The ability to migrate nutrient preparations in iron-deficient, rich soil (. Laboratory study).

An iron-poor soil with a high content of carbonate and a pH value of 8.2 is divided into fractions of various grain sizes. From the fraction with a grain size of 1 to 2 mm, 600 g are taken and fed into the measuring cylinder, equipped with holes on the underside and having a volume of 500 ml, a height of 25 cm and a diameter of 5 cm. At the beginning of each experiment, 100 mg of the corresponding preparation

The feed substance in the form of a con fi grated aqueous solution is fed to the surface of the column bottom. Then distilled water from the Mariotti flask is introduced onto the plate column so that

so that, at a constant water level, it should be constantly maintained in a wet state. The filtration water flowing down from the column is collected and examined daily for its iron content.

The measurement results are shown in Table. 2

Given in Table. 2, the results of the experiments show that the migration rates of the proposed compound (1) (di-sodium-penta-cyanonitrosilferrate) are significant. Drug due to this

suitable for use in soil.

PRI me R 3. Elimination of iron deficiency (test on the absorption of roots). Open field experience. Experimental peach plant,

Culture substrate is alkaline iron deficient soil. 13-year-old peach trees growing on alkaline iron-deficient soil in Greece, at the beginning of the experiment in open ground, pour 10 liters of water each, containing the desired amount of the nutrient preparation in solution.

At the beginning of the experience, as well as after three and

seven weeks, respectively, determine the degree of yellowing by the method of Townsend and Heuberger and indicate it as a percentage. At the same time designate:

 - leaves are dark green (non-chlorotic) 100% - leaves are completely yellow (chlorotic). In addition, after three, seven weeks respectively, after the start of the experiment, the degree of effectiveness of the nutrient preparations used is determined by the method of Henderson and Filton and is indicated by percentages. At the same time designate:

0% - leaves are completely yellow (chlorotic) / hair is dark green (not chlorotic). Nutrients, amounts of nutrients and results of experiments (s from table. 3.

Elimination of iron deficiency (root absorption test)

 Sequestren 138 Fe - commercially available iron-containing fertilizer based on the iron chelate complex with ethnlenediamine - N - N-di (o - hydroxyphenyl) - acetic acid

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Claims (3)

(L ...: - :., 57796 Claim place in iron, in particular NO, HjO. CO, NHj, NHjNfcij, NO2, As02, 8Оз; or a suitable organic radical, in particular NO-СНз, NO-C, H5, NO.SC (NH) NH5.; O and - integer from f to 5 and B - integer from 1 to 5, or their hydrate, in the amount of 12 in. 12 Sources of information taken into account for expert: 1. Petersburg A.V., Agrochemistry and plant physiology, Ro selhozizdat, Moscow, 1971, P.246. 2. Petersburg A.V., Agrochemistry and physiology of plant nutrition, Rosselkhozizdat, Moscow, 1971,: .247. . , R o. . 3. Arinushkina EV, Guide to chemical soil analysis, ed. Moscow University, 4961, p.254.255.