SU704934A1 - Fertilizer with microelements - Google Patents

Description

(54) FERTILIZER WITH MICROELEMENTS

The invention relates to the technology of mineral fertilizers and can be used to obtain fertilizers with trace elements - manganese and zinc. Fertilizers with trace elements such as manganese and zinc are known, for example, the sulfates of these elements are l. The use of these fertilizers is essential. It increases the yield of various vegetable and other agricultural crops, including when it is harvested in protected ground. However, the effectiveness of laurel sulphate and zinc is significantly reduced as a result of the strong fixation of trace elements in some soils, which makes them inaccessible to plants. The purpose of the invention is the creation of fertilizers with microelements - manganese and zinc, for a long time not fixed by pochoy and easily digestible plants. /. -. This is achieved by quality. , fertilizers are used chelate marGaNsb compounds (or) zinc - aminomethylphosphonates of the general formula. KeNz-dMeH, where, 3; ,five; Me mr-or Zh. X is the deprotonated residue of the acids of the formula ru px-OH SP „-P-0, N. and T CHj. COOH, manganese and zinc aminomethylphosphonates are obtained by reacting stoichiometric amounts of basic manganese carbonate or zinc oxide in an aqueous solution and nitrilotrimethylphosphonic or glycinebismethylphosphonic acids, followed by addition of potassium hydrate to pH 5-6 2. mpso.i, lsi, and: -Cn mmlsia. CNVtt A ClC 3 fAvi L) - - {u4gi A (C jZh u -.K.V17LMA (K..HZnU) where A is the deprotonated osnitrilotrimethylphosphonic acid

2.65 16.95 21.82 9.78

K NMAA-5 16/70 21.08 9.87

2.85 17.80 22.21

KjHInA 3 H ,, 0 2.64 17.55, 22.02

2.51 12.01 22.32 1O, 76

 -5 n, o

2.68 11.9022.54 10.56

12.17 12.29 44 LI — deprotonated glycine-methylphosphonic acid residue The resulting aminomethyl-phosphonate solutions are evaporated to a syrup-like consistency, after which products are precipitated with methyl alcohol. The precipitates are filtered off, washed with methyl alcohol and dried to a constant weight of about at 50-6 O. Output - 95-96% of theoretical. Table 1 presents the chemical composition of amylo methylphosphonates and the results of elemental analysis of the products. The water content of aminomethylphosphonates was determined by the thermogravimetric method. Table 1.

3.40 13.70 17.57

K, HZviL-3 H20

307 13,5717,11

The effectiveness of manganese and zinc aminomethylphosphonates is confirmed by agrochemical tests.

Example. The plants were grown in glass vessels measuring 15x20 cm, containing 3.8 kg of soil or 1.0 kg of peat, on nitrogen-phosphorus-calcium. background (0.1 g of active top of 1 kg of air-dry soil).

Aminomethylphosphonates and, for comparison, the effects of sulfates were introduced in amounts of DF, 0 mg / vessel for manganese and 3.8 mg / vessel for zinc. The experiments were repeated 3 times.

Table 2 shows the effect of manganese and zinc amiomethylphosphonates on mustard yield and the use of trace elements by plants. Yield data is the following: evidence of a positive effect of manganese and zinc aminomethylphosphonates. The yield gain of seeds compared to control experiments was 32-40% experiments with manganese and 1013% - with zinc. At the same time, a 1Mnomethylphosphonate of manganese has the effect of manganese sulphate, and zinc-containing. in terms of their effectiveness, aminomethylphosphonates were not significantly inferior to zinc sulfate. . EXAMPLE 2. In order to study the effect of manganese and zinc aminomethylphosphonates on the yield of TGXA-211 cucumbers on hydroponics, expanded clay was carried out before starting the process of superphosphating the substrate with a solution of superphosphate for 24 hours (followed by washing with water) to saturate the substrates. one and a half oxides of aluminum and iron. in order to avoid their reaction. with a nutrient solution.

Some of the fb and microelements in the fertilizer with manganese sulphate and

zinc-and in fertilizer with a mixture of manganese and zinc aminomethylphosphonates were identical and were,%: N-9.83; P y 4.86; K - 19.88; Mg-6.24;

B - 1.0; Mo - 0.02; MI - 0.3; Ih — 0.15; C - 0.1 and Co - 0.02. A nutrient solution containing macro- and micronutrients is fed once or twice a day, depending on

age of plants, a series of feed plant. thief with watering water. Observations of plants during the growing season show a positive effect of the complex fertilizer with manganese and zinc aminomethylphosphonates on the cucumber culture, which is characterized by stronger growth, early intensive flowering and fruit formation. The use of a mixture of manganese and zinc amyvomethyl phosphate by comparison with their sulphates will increase the yield by about 30%. Table 3 shows the effect of the form of fertilizer on the yield of cucumber TSHA-2P.

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