KR20150019865A - Fertilizer composition by using humic acid for plant growth promoting - Google Patents

Abstract

The present invention relates to a fertilizer composition for promoting plant growth, specifically, to a fertilizer composition for promoting the plant growth and increasing the yield by combination of water soluble humic acid and various types of nitrogen, and, more specifically, to a fertilizer composition, in which the input ratio of water soluble humic acid originated from leonardite, and a nitrogen source of urea nitrogen, ammonia nitrogen and nitric acid nitrogen is controlled according to the type of the nitrogen source in order to promote the plant growth and to increase the yield. Accordingly, the productivity of plants is increased by diversification of nitrogen sources considering the absorption type of plants with regard to the conventional liquid type nitrogen fertilizer, and by the synergy effect of humic acid. When the fertilizer composition manufactured according to an embodiment is diluted and applied to Brassica chinensis through injection and foliar fertilization while culturing Brassica chinensis in a pot, Brassica chinensis is promoted to grow and increased in yield. In particular, the injection facilitation is determined to be applied to the product as the effect of the injection facilitation is more excellent than the foliar facilitation. Based on the result, the fertilizer composition can be used as a material which can promote the growth and increase the yield of Brassica chinensis and/or other leaf vegetables.

Description

Technical Field [0001] The present invention relates to a fertilizer composition for promoting crop growth using a humic acid,

TECHNICAL FIELD The present invention relates to a fertilizer for growing crops, and more particularly, to a fertilizer composition for promoting crop growth and yield increase by combination of a water-soluble corrosion acid and a nitrogen form.

Corrosive acids are plants that are found in the soil, mainly from plants and plants (reeds, mosses, aquatic plants) and woody plants and plants that have been corroded for many thousands or tens of thousands of years in the cold wetland of the Northern Hemisphere, . It is amorphous as an acidic substance of a used molecule as various complex materials of yellowish brown, brown, black brown, and black modified or synthesized as the organic matter present in the soil is decomposed by microorganisms. Humus is also called humic substances, and corrosion is an organic matter, but not all organic matter can be seen as corrosion. An organic substance means a compound containing carbon atoms and means all organic compounds derived or synthesized from living organisms. In agriculture, it means only organic compounds naturally derived from organisms such as animals, plants and microorganisms. Corrosive acid is a carbonated insoluble material that is not a water-soluble substance in nature and composed of carbon 50-60%, hydrogen 3-5%, nitrogen 1.5-6%, sulfur 1%, ash 1%, oxygen 30-50% have.

Nitrogen is a key constituent element of nucleic acid, which is the main component of cell protoplasm and the main component of protein nucleus and nucleus, and it is important nutrient which affects the growth of crop and greatly affects the yield. Nitrogen is a component of important compounds such as proteins, nucleic acids, chlorophyll, and enzymes in the plant body and plays a very important role in maintaining the life of plants. The crop absorbs this nitrogen in the form of inorganic nitrogen, mainly ammonia nitrogen or nitrate nitrogen. Ammonia The accumulation of nitrogen in soils causes ammonia gas damage and inhibits the absorption of cations such as calcium, potassium, and magnesium. Highly absorbed ammonia nitrogen is toxic in plants. Nitrate Nitrogen is not adsorbed on the soil culture medium and is liable to be lost due to irrigation. Nitrogen fertilizer applied to the culture medium changes its morphology by action of microorganisms such as nitrifying bacteria and hydrolysis depending on the form thereof, . The absorbed nitrate nitrogen is fed from the root to the leaf, where it is transformed into ammonia nitrogen by the action of the enzyme and is used for the synthesis of glutamic acid and other amino acids through glutamine. When ammonia is absorbed into nitrogen, it does not work in the body, and glutamine production is done directly. This reductive action requires energy, requires anabolic products and temperature, and therefore, if the temperature is low, or if there is a lack of light due to a lack of light, it may cause a trouble due to excess nitrogen.

In the present invention, it is intended to provide a fertilizer composition in which water-soluble corrosion acids derived from soft brown lignite, nitrogenous nitrogen of ammonia, nitrate nitrogen and nitrogen source form are controlled for promoting growth and yield of crops. Therefore, we intend to increase the productivity of crops by diversification of nitrogen source and synergy effect of corrosive acid considering the absorption type of crops compared with conventional liquid nitrogenous fertilizer.

In the present invention, an aqueous solution of a caustic acid is added in an amount of 10 to 20% by weight based on the total fertilizer composition, which can be expected to enhance nutrient absorption, improve soil structure, increase microbial density, and improve cation exchange capacity.

Also, the fertilizer composition according to the present invention is prepared by adding a nitrogen mixture so that the total nitrogen content is 5 to 10 wt%, and the nitrogen mixture is a nitrogen source form, comprising 20 to 30 wt% of urea nitrogen, 10 to 20 wt% By weight, and nitric acid nitrogen in an amount of 50 to 70% by weight.

The aqueous solution of corrosive acid is a water soluble corrosion acid extracted from soft lignite, and the effective corrosion acid content is adjusted to 6 ~ 7%. Urea nitrogen, ammonium nitrate, ammonium nitrate and potassium nitrate can be used have.

Corrosive acid can improve soil physical properties and microbial proliferation, increase nutrient supply and water holding ability of crops, promote crop growth and maintain soil ecosystem, and thus it can be applied to agricultural products in future. In addition, it is difficult to maximize the absorption rate because the conventional nitrogen fertilizer is composed of one type of nitrogen, but it is possible to maximize the utilization rate of nitrogen by feeding the crop with different nitrogen type. Therefore, it is expected to improve the disadvantages of the conventional liquid nitrogen fertilizer and to maintain the soil environment as well as the income of the farmers by using characteristics of corrosive acid.

FIG. 1 is a view showing a general production method of reacting with acid and then neutralizing it by a method of extracting a water-soluble corrosive acid from soft brown.

The fertilizer composition of the present invention is mainly composed of a water-soluble corrosion acid derived from soft brown lignite and a nitrogen mixture containing urea, ammonium sulfate and potassium nitrate. More specifically, a fertilizer composition is prepared by adding 10 to 20% by weight of an aqueous solution of a caustic acid and 5 to 10% by weight of total nitrogen.

The aqueous solution of the corrosive acid is added to the fertilizer composition by adjusting the effective corrosion acid content of the existing water soluble corrosion product to 6 to 7%.

The nitrogen mixture is prepared by mixing 20 to 30% by weight of urea as urea nitrogen, 10 to 20% by weight of ammonium sulfate as ammonia nitrogen, and 50 to 70% by weight of potassium nitrate as nitrate nitrogen, The mixture is added so that the total nitrogen content of the fertilizer composition is 5 to 10 wt%.

The mixture is weighed according to the mixing ratio of the raw materials and dissolved in water to complete the final product. Specific production methods and crop growth effects are the same as in the examples.

100 g of water-soluble corrosion acid (65% of granular and acidic acid content) purchased from Domestic Company A was dissolved in water and corrected to 1,000, and the effect of the acidic acid was compared with that of the foliar application and vascularity. As a result, 10 to 50 ppm of foliar application, At 200 ~ 500ppm, the growth of bluegrass was promoted and the yield was increased

The results of analysis of nitrogen content of product according to total nitrogen content and nitrogen source input ratio are shown in Table 1 below.

As a result, the total nitrogen content of the product was analyzed as expected. Based on the above results, it was found that the amount of nitrogen source (46% of urea nitrogen, 25% of ammonium nitrate, The amount of potassium nitrate 61%) and the amount of corrosive acid (containing 65% of corrosive acid) are as shown in Table 2 below. Each raw material was added to 500 liters of water to dissolve it, and finally, it was calibrated to 1,000 liters.

The fertilizer composition (5-4) prepared in Example 2 was diluted 500-fold and 1000-fold to cultivate chrysanthemum chrysanthemum in pots. As a result, the growth and the yield of chrysanthemums were increased as shown in Table 3 below Especially, it is considered that this product should be applied by the cross - fertilization method because the effect of the crossing ratio is better than that of the foliar application.

Claims (3)

10 to 20% by weight of a caustic acid aqueous solution having a corrosion acid content of 6 to 7% and 5 to 10% by weight of total nitrogen. The method according to claim 1, wherein the total nitrogen is adjusted by adding a nitrogen mixture of 20 to 30% by weight of urea nitrogen, 10 to 20% by weight of ammonia nitrogen, and 50 to 70% by weight of nitric acid nitrogen Fertilizer composition. The method according to claim 2, wherein the urea nitrogen is urea (CO (NH ₂ ) ₂ ), the ammonia nitrogen is ammonium sulfate ((NH ₄ ) ₂ SO ₄ ), and the nitrate nitrogen is potassium nitrate (KNO ₃ ) ≪ / RTI >

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