Ecological nitrogenous fertilizer and preparation method thereof

A nitrogen fertilizer and ecological technology, applied in the field of ecological nitrogen fertilizer and its preparation, can solve problems such as easy loss, and achieve the effects of reducing fertilizer costs, soil diseases and insect pests, and reducing the frequency of fertilization.

Inactive Publication Date: 2013-02-20
安徽省文胜生物工程股份有限公司
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Problems solved by technology

However, after being applied to the soil, some of them are converted into nitrate nitrogen or gaseo...
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Abstract

The invention discloses an ecological nitrogenous fertilizer and a preparation method thereof. The ecological nitrogenous fertilizer comprises raw materials of, by weight, 60-80 parts of urea, 13-15 parts of ammonium chloride, animal hair, 5-7 parts of feathers, 20-30 parts of peat, 14-16 parts of modified pot clay, 0.6-0.8 part of zinc sulphate monohydrate, 0.2-0.4 part of micronutrients fertilizers, 3-8 parts of ferrous sulfate, 23-28 parts of chitin, 2-4 parts of modified nanocarbon, 2-4 parts of white poplar barberry root barks, 2-4 parts of lavender, 4-6 parts of paulownia barks, 3-5 parts of herbs of wilson passionflowers and 2-4 parts of Chinese wisteria. The feathers and the like are subjected to acid hydrolysis to generate amino acid, secondary and trace elements are subjected to chelation, a chelation structure of carboxymethylcellulose is added, effective utilization of the secondary and trace elements is facilitated, and invalid release of the secondary and trace elements is reduced; the white poplar barberry root barks, the lavender, the paulownia barks, the herbs of wilson passionflowers and the Chinese wisteria are added, so that pest and disease damage to soil is effectively reduced; and the ecological nitrogenous fertilizer is capable of obviously improving the fertilizer efficiency use ratio, the ecological nitrogenous fertilizer is only required to be applied for one time and then slowly and effectively released, frequency of fertilizer application can be reduced, fertilizer costs are reduced, and economic benefits are improved.

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Examples

  • Experimental program(1)

Example Embodiment

[0015] Example 1: Ecological nitrogen fertilizer, the weight parts of its constituent raw materials are: urea 70, ammonium chloride 14, animal hair, feather 6, peat 25, modified clay 15, zinc sulfate monohydrate 0.7, trace element fertilizer 0.3, sulfurous acid Iron 5, Chitin 25, Modified Nano-Carbon 3, Poplar Root Bark 3, Lavender 3, Paulownia Bark 5, Half Leaf 4 and Vineyard Root 3.
[0016] The preparation method of ecological nitrogen fertilizer includes the following steps:
[0017] (1) Weigh each raw material in parts by weight, first add 4 times the amount of 30% sulfuric acid to hydrolyze the animal hair and feathers at 60-80°C for 8-10 hours to generate amino acids, then add lime to neutralize, press Proportion: Add 3-4 parts by weight of carboxymethyl cellulose for every 15 parts by weight of hydrolysate, then add ammonium chloride, urea, trace element fertilizer, ferrous sulfate, zinc sulfate monohydrate to dissolve it, and generate amino acid chelated micro and medium fertilizer liquid ;
[0018] (2) Add the weighed white poplar root bark, lavender, paulownia bark, half leaves and vines to vinegar and soak for 6-8 days, and filter to obtain the filtrate;
[0019] (3) Mix the amino acid chelated micro and medium fertilizer liquid of step (1) and the filtrate of step (2) uniformly, then add modified clay, peat, chitin and modified nano-carbon, stir evenly, and granulate to obtain Finished product.
[0020] The modified clay is prepared by the following method: mixing the clay with 1-2% vinyl silane, heating to 50-60°C and stirring for 20-30 minutes, and then adding 2-4% nano silica, Disperse at high speed, and finally dry and crush into 300-350 mesh powder to obtain modified nano-clay.
[0021] The modified nano-carbon adopts nano-carbon with 1-2% silane coupling agent KH550, 0.2-0.3% sodium lauryl sulfate, and 1-2% aluminum hydroxide added at high speed and then ground for 1-2 hours.
[0022] The comparison of the field test data of the ecological nitrogen fertilizer prepared in the above examples is as follows:
[0023] First group Second Group The third group average Blank control 9.7 9.5 8.7 9.3 Conventional fertilization 16.3 16.7 14.8 15.9 Apply the fertilizer of the present invention 17.8 17.5 18.8 18.0
[0024] On the basis of the granulated fertilizer in Example 1, proceed with the following steps:
[0025] (1) Put the diatomaceous earth into 3 times the amount of water, then add 2-3% sodium lauryl sulfate equivalent to the weight of the diatomaceous earth, 1-2% Pingping O, 4-5% wintergreen oil, 3-5% aluminum hydroxide, high-speed stirring at 5200-6500 rpm to obtain dispersion slurry;
[0026] (2) Spray the dispersed slurry outside the fermented fertilizer particles and dry;
[0027] (3) Spray the pyrethroid mixture outside the granules, and then dry it, or not spray it.
[0028] The use of the above fertilizers increases the slow-release characteristics, and the amount of fertilizer per mu can be reduced by about 20%, and the yield is basically unchanged.
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