CS240375B1 - Plant Growth Controller - Google Patents

Abstract

Plant growth regulator, especially for plant crops (corn for grain and cereals), the active substance of which is cyanuric acid H3O3C5N3 as such and/or its salts, which may be contaminated with a mixture of urea, biuret and melamine, so that the crude reaction mixture from the production of cyanuric acid is used directly. It is applied in the form of an aqueous solution or dispersion with a concentration of the active substance of 1.10-4 to 5.10~2 %/o wt. (1.10"3 to 1.10-2 wt. percent), whether for pickling (impregnation of grain or seeds or spraying of plants

Description

240375

BACKGROUND OF THE INVENTION The present invention relates to a plant growth regulating agent, in particular a plant growth stimulator based on readily available petrochemical products. In agriculture, many compounds have been successfully applied as physiologically active substances such as auxinoids, kinins, and plant growth retardants, despite the fact that their biochemical nature is still subject to various hypotheses [Audus JJ: Plant Science Monographs, Lon-don - New York (1966); Zalabák V .: Corps of ICS MZLVH Prague (1996); Faustov VV: Primenenije reguljatorov rosta v plodo-vodstva, Minist, seískogo chozjajstva USSR, Moskva (1972); Rozkošová V.:Includes Letters 66, No. 12, 364 (1973), Bezdák V.:Apart 19, No. 5, 171 (1971)].

Growth regulators have spit chemical structures [Apel P., Nátr L .: Biochem. Physiol.Pfl. 1976, 169; Wogller R .: Chimie der Pflanzenschutz und Schadlingsbekampfungsmittel, Band 4, Springer Verlag, Berlin - Heidelberg - New York (1977)].

It is known to use a succinic acid plant growth stimulator and an explanation of the biochemical effect of the action of quantitative biochemistry [Blagoveshchenskij A. V., Rachman R. R., Jantarnaya kislota i povy -i urozajev, Tashkent (1966); Blagoveshchen-skij A. V .: Teoretičeskije osnovy destvija jan-tarnej kisloty na rastenija. Moscow, Nauka (1968); Blagoveshchenskij A.V., RachmahovR. R.: Biochemičeskaja priroda povyšnija u-rožajnosti s pomoščuju jantarnoj kisloty.Izd. MGU (1970)].

A physiologically active substance may also be a mixture of lactones and dicarboxylic acids from waste processing products from furfural production. certč. USSR 470 516 (1973) and 539 573 (1975)], a technical mixture of succinic acid, glutaric acid and adipic acid isolated from slurries of anodic oxidation of aluminum, maleic acid by-products - saponified distillation residues from the production of cyclohexanol and cyclohexanone by oxidation of cyclohexane (Czechoslovakian Certificate 220 936).

A disadvantage of many known growth regulators, in addition to the technical and raw material availability, is their heavy application, especially in mechanized plant production. While many of them are effective, they are only a longer-lasting pickling and only inefficient or even ineffective in post-spray.

SUMMARY OF THE INVENTION The present invention is based on the use of cyanuric acid and / or salts thereof, possibly contaminated with up to 50% of a mixture of urea, biuret or melamine as a plant growth regulator. The advantage of the plant growth regulator of the present invention is both the technically available production, the possibility of using the raw product directly, which contains unconverted urea and biuret as a byproduct, and the possibility of using more processes, including plant spraying, as well as the possibility to utilize it. at the same time to spray the plants with both growth regulators and pesticide sprays, nutrients (leaf fertilizers) and the like. A great advantage is the high regulating effect of this plant growth regulator, when the growth of the grain predominates partly at the expense of green plant parts.

The essence of the plant growth regulator of the present invention is cyanuric acid H 3 O 3 C 3 N 3, which is a cyclic trimethyl cyano (HOCN) 3, i.e. 2,4,6-trihydroxy-1,3,5-triazine, which is formed by heating the urea over its melting point, through the intermediate isocyanate acid formation = C = N-H, respectively. biuret H2NCONH2 ---- ► O = C = N-H + NHs

132 ° C H2NCONH2 + O = C — N — H -> - H2N — CO — NH — CO — NH2 biuret 3 o = C = N — H -------> ho-c heating <% ~ oh

II I

AND

OH

O = C ^% = C, 1 INH NH 11

Cyanuric acid

24037S with cyanuric acid being in the tautomeric equilibria of oxophores and enolphores, the extreme forms of which are marked, ie (J. Kováč, Š. Kováč: Organic Chemistry, p. 581 and 698; Alfa, Bratislava 1977): HC

OH

H ll i

AND

Ofl VUv Λ

II o, 0

Hl \ t

II o

In addition to the hydrolysis and saponification properties of cyanuric acid by the harmless component of the growth regulator, urea and biuret may also be present, but they will function as nitrogen nitrogen donors in the plants, respectively. pody. This makes it possible to use, as a growth regulator, an easily accessible mixture of cyanuric acid, urea and biuret in which the cyanuric acid content is determined.

It applies itself, respectively. after hydrolysis and / or saponification, wherein the hydrolysis of the cyanuric acid of the present invention is understood to include its saponification, for example aqueous hydroxide (0.3 g cyanuric acid 0.0484 g NaOH in 1 dm 3 aqueous solution), most often in the form of diluted aqueous solutions or dispersions (up to emulsions), optionally in powder form. It is desirable to combine this growth regulator, e.g., by affixing, treating crops or grains with pesticides, and the like, to provide a one-time complex effect on growth and overall plant development, in particular, to enhance breeding. demonstrating the physiological efficacy of the growth regulator of the present invention is apparent from the examples. Přikladl

According to the Methodology [A. Murin et al., Biology 35, 12, 937 (1980)] identifies the germinating barley of the Opal variety depending on the concentration of the aqueous solution of cyanuric acid as well as the neutralized or saponified cyanuric acid solution with sodium hydroxide. The results obtained are summarized in Table 1 and are the arithmetic mean of three replicates. Simultaneously, stimulating efficacy solutions of cyanuric acid or aqueous solution of the product of saponification are examined in a three-week trial with similar variants as in the germination assay. g of the washed siliceous sand with the same fertilization is poured out for 30 grains of spring barley, varieties of opal and, after emergence, is fined for 20 plants. The grain is used in the control of the pickled wine in distilled water and in other variations pickled in aqueous cyanuric acid solutions and its saponification product. 50 g of grain are pumped in 60 cm 3 of aqueous pitch over 24 h. Each variant has four replicates. The results obtained are arithmetic mean values obtained and are also summarized in Table 1. The mathematical evaluation of the results is made by variant analysis. As the optimum for germination and mass-produced mass, a variant using barley dipping of aqueous solution with a concentration of 3. 3 to 3% by weight appears to be a variant. saponified cyanuric acid. 240375

Variant

Tabullka 1

Concentration of aqueous solution Germination of solution [%] [° /% by weight]

Weight of green matter, compared to control [%].

Control - Grain sealed in distilled water - Grain stained with neutralized or water-borne water. saponified cyanuric acid 3.10- 2 3.10- 33.ΙΟ-1 3.10- 5 Kyauric acid water-borne grains 3.10- 2 3.10- 3 3.10- 4 3.10- 5 Evidence of differences: Po, o and saponified acid solution acid solution - Example 2 100 100 91.1 100.5 113.3 107.6 104.4 101.9 100.2 98.4 82.2 99.2 100 102.1 108.9 103.7 101 7 94.4 3.34 / 3.64 4.38 / 3.47 5.24 / 5.72 6.38 / 5.04 Example 3

5 kg of soil was weighed into the flasks (giving a brownish brown type, aluminum; pHv KCl - 6.47; humus = 2.0% by weight, available phosphorus according to Egner = 24.9 mg. Kg-1) accessible to Schachtschabla 160.7 mg kg-1] and 1 kg of quartz sand. 30 µl of spring barley of Opal variety are sown in each vessel and fertilized at a rate of 1 g of N per N: P ratio: K - 1.0: 0.88:: 2.49 After emergence, the barley is peeled to 20 cm in each pot, and the pots are poured into 60% full water capacity. After harvesting in full maturity, the crop yield, slaughter and other technological and qualitative parameters of the crop are determined, and the spraying of the plants is done in Phase 9 of the Feebes scale, the control variant. distilled water in 10 g and in other variants for growth in each vessel with 10 g of aqueous solution of neutralized succinic acid, non-neutralized % of maleic anhydride, saponified cyanuric acid, and with a solution of n-naphthylacetic acid at a concentration of 3.10-3 per cent by weight. The results are shown in Tables 2. In field experiments on parcels of 2.5 X 8 m in the maize varieties LG - 9, the impact of impregnation (pickling) of the grain and spraying at 9. the growth phase, on the one hand, with distilled water (control) and on the other hand with an aqueous solution of cyanuric acid saponified with sodium hydroxide, at a concentration of 0.003% by weight. maize 5,25 t.ha-1 (100%), above-ground matter 8.96 t.ha -1 (100%) and average plant height 195 cm (100%), if sprayed with cyanuric acid is grain yield of 6.30 t ha -1 (169.8%), maize 4.58 t.ha-1 (87.2%), plant size 10.88 t.ha-1 (121, 4 ° / o), and the average total height is 100 inches (196 cm), each of which is repeated four times. t.ha-1 / l, 58 t.ha-1, in the case of kukurica crop 0.92 ha-1 / l, 69 tonnes ha-1; ha-1 / l, 64 t ha-1 and average plant height 5.09 cm / 9.34 cm. 240375 10

Table 2

Variant

Concentration of solution Harvest of one pot [g] [%] 100 104,1 27,5 101,9 29,3 108,5 28,0 103,7 [%]

Control Distillation 27,0 Water

Neutralizing 3.10 "3 28.1 bath janartaric acid spray

Spray with neutralized 3.10 "3-yin sodium borohydride

Soap-sprayed 3.10 ~ 3-nitric acid

Spray with 3.Q-3-naphthylacetic acid

Evidence of differences

Po, os - 2.0 Ρο, οι - 2.82 Example 4 In a batch experiment, where each variant is repeated four times, a brownish-flare type, aluminum, pH vKC1-6.1 is used; humus = 1.9% by weight; accessible to Egner P 22.7 mg. kg "1; available to K according to Schachtschabla 165.2 mg. kg-1 and 1 kg of quartz sand. Into each vessel, 30 grains of spring barley are sown from one-silage harvest [g] [%] 58.1 100 55.2 95.0 57.1 98.3 69.5 119.6 59.2 101.8 Above-ground crops per plant [g] [%] 85.1 100 83.3 97.9 84.6 99.4 98.8 116.1 87.2 102,4 6,10 - 5,91 - 8,57 - 8,29 - genera Opal and fertilize at 1 g N per N: P: K = 1,0: 0,88: 2,49 After emergence, the barley is seeded into 20 plants at each stage, and the plants in the pots are watered with 60% of the full water capacity.An experiment has 6 variants, the results obtained are summarized in Table 3 and are the average of 4 replicates, and the statistical evaluation was made by variant analysis.

Claims (1)

OBJECT OF THE INVENTION 100 34.0 100 102.2 33.8 99.4 104.8 34.5 101.5 113.9 33.4 98.2 110.8 33.5 98.5 114.3 33.7 99.1 114.7 . 33.9 99.7 105.6 34.5 101.5 1.00 1.37 The use of cyanuric acid and / or salts possibly contaminated up to 50% with a mixture of urea, biuret or melamine as plant growth regulator.