Process and formula of multi-element nutrition optimized liquid fertilizer special for rice and corn

Abstract

The invention provides a multi-element nutrition optimized liquid fertilizer formula special for rice and corn, which comprises the following raw materials in percentage by weight: 5-25% of nitrogen, 1-20% of phosphorus, 1-20% of potassium, 0.1-10% of trace elements including zinc, boron, manganese, iron, copper and molybdenum, 1-20% of organic matter, 1-15% of humic acid, 1-10% of seaweed extract, 0.1-5% of surfactant and the balance of water. The organic matter is selected from one or more of decomposed plant residues, animal waste or compost, and the humic acid is mineral source humic acid or biochemical humic acid. The liquid fertilizer has the advantages that macroelements, medium trace elements and functional additives are scientifically proportioned and can be quickly dissolved and directly absorbed by root systems and leaves of crops, the nutrient utilization rate is greatly increased, the liquid fertilizer is accurately regulated and controlled according to nutritional requirements of different growth stages of rice and corn, and the yield of the rice and the corn is increased. The silicon element is enhanced, the lodging resistance of the rice is enhanced, the zinc content is optimized, and the white seedling disease of the corn is prevented, so that balanced nutrition supply in the whole growth period of crops is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agricultural fertilizer, in particular to a multi-nutrient optimization type liquid fertilizer process and formula for rice and corn. BACKGROUND

[0002] When rice and corn are the most important food crops in the world, their high and stable yield is directly related to food security and social stability. The demand for nutrient elements in the growth cycle of these two crops has both commonalities and characteristics: rice, as a typical silicon-loving crop, needs sufficient nitrogen to promote tillering, and relies on silicon to enhance stem strength and improve resistance to lodging; corn, as a high-yield grass, is particularly sensitive to zinc, and a lack of zinc can lead to "white seedling disease", and its flowering and pollination period requires more phosphorus and potassium. In order to achieve high quality and high yield, it is necessary to scientifically proportion macronutrients, micronutrients and trace elements according to their physiological characteristics and nutrient absorption rules at different growth stages, taking into account soil characteristics and climate conditions, and through precise liquid fertilizer formula design, to achieve efficient use of nutrients, reduce environmental pollution, and ultimately achieve the sustainable agricultural development goal of increasing yield and improving quality, and resource conservation.

[0003] Traditional solid fertilizers have the problems of slow dissolution, low absorption rate, and uneven fertilization, while existing liquid fertilizers still have deficiencies in comprehensiveness and specificity of nutrient composition. Therefore, it is of great significance to develop a liquid fertilizer that can provide comprehensive nutrition, high specificity, high absorption rate and convenient use for improving the yield and quality of rice and corn. SUMMARY

[0004] The purpose of the present application is to provide a multi-nutrient optimization type liquid fertilizer process and formula for rice and corn, which solves the problem of insufficient comprehensiveness and specificity of nutrient composition in the prior art.

[0005] In order to achieve the above-mentioned purpose of the application, the technical solution adopted by the present application is:

[0006] A multi-nutrient optimization type liquid fertilizer formula for rice and corn, comprising the following raw materials by weight: nitrogen 5%-25%, phosphorus 1%-20%, potassium 1%-20%, trace elements 0.1%-10%, the trace elements including zinc, boron, manganese, iron, copper and molybdenum, organic matter 1%-20%, humic acid 1%-15%, seaweed extract 1%-10%, surfactant 0.1%-5%, and the balance being water.

[0007] Preferably, the following raw materials by weight are included: nitrogen 10-20%, phosphorus 5-15%, potassium 5-15%, trace elements 0.5-5%, including zinc, boron, manganese, iron, copper and molybdenum, organic matter 5-15%, humic acid 2-10%, seaweed extract 1-5%, surfactant 0.1-1%, and the balance water.

[0008] As an improvement, the organic matter is derived from one or more of composted plant residues, animal manure or compost, and the humic acid is mineral or biohumic.

[0009] As an improvement, the seaweed extract is from kelp, kelp or sargassum, and the surfactant is one or more of alkyl benzene sulfonate, fatty alcohol polyoxyethylene ether or alkyl phenol polyoxyethylene ether.

[0010] A multi-nutrient optimized liquid fertilizer process for rice and corn, characterized in that it comprises the following steps: step one, mixing nitrogen source, phosphorus source and potassium source in proportion, adding appropriate amount of water and stirring uniformly;

[0011] Step two, add trace elements in the form of soluble inorganic salt or chelate to the mixture of step one and stir uniformly;

[0012] Step three, add organic matter, humic acid and seaweed extract and stir uniformly;

[0013] Step four, finally add surfactant, stir uniformly and obtain liquid fertilizer.

[0014] As an improvement, the mixing temperature of nitrogen source, phosphorus source and potassium source in step one is 20-60℃, and after adding organic matter, humic acid and seaweed extract in step three, the stirring time is 30 minutes to 2 hours.

[0015] As an improvement, after adding surfactant in step four, the stirring time is 10 minutes to 1 hour, and the application concentration of the liquid fertilizer is 1-5%.

[0016] The beneficial effects of the present application are: the liquid fertilizer can be quickly dissolved and directly absorbed by crop roots and leaves by scientific proportioning of macroelements, microelements and functional additive ingredients, greatly improving nutrient utilization rate, precisely regulating the nutritional needs of rice and corn at different growth stages, strengthening the silicon element to enhance the lodging resistance of rice, optimizing the zinc content to prevent corn white seedling disease, and thus realizing balanced nutrition supply for crops during the whole growth period. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and technical effect of the present application clearer, the following describes specific embodiments of the present application. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0018] A multi-nutrient optimized liquid fertilizer formula for rice and corn, comprising the following raw materials by weight: nitrogen 5%-25%, phosphorus 1%-20%, potassium 1%-20%, trace elements 0.1%-10%, the trace elements including zinc, boron, manganese, iron, copper and molybdenum, organic matter 1%-20%, humic acid 1%-15%, seaweed extract 1%-10%, surfactant 0.1%-5%, and the balance being water.

[0019] In the above raw material ratio, the optimal weight ratio is: nitrogen 10%-20%, phosphorus 5%-15%, potassium 5%-15%, trace elements 0.5%-5%, the trace elements including zinc, boron, manganese, iron, copper and molybdenum, organic matter 5%-15%, humic acid 2%-10%, seaweed extract 1%-5%, surfactant 0.1%-1%, and the balance being water.

[0020] A multi-nutrient optimized liquid fertilizer formula for rice and corn, characterized in that the organic matter is derived from one or more of decomposed plant residues, animal manure or compost, and the humic acid is mineral humic acid or biochemical humic acid.

[0021] A multi-nutrient optimized liquid fertilizer formula for rice and corn, characterized in that the seaweed extract is an extract of kelp, giant kelp or horsetail, and the surfactant is one or more of alkyl benzene sulfonate, fatty alcohol polyoxyethylene ether or alkyl phenol polyoxyethylene ether.

[0022] A multi-nutrient optimized liquid fertilizer process for rice and corn, characterized by the following steps: Step 1, mixing nitrogen source, phosphorus source and potassium source in proportion, adding an appropriate amount of water and stirring uniformly;

[0023] Step 2, adding trace elements in the form of soluble inorganic salts or chelates to the mixture of Step 1 and stirring uniformly;

[0024] Step 3, adding organic matter, humic acid and seaweed extract and stirring uniformly;

[0025] Step 4, finally adding surfactant and stirring uniformly to obtain the liquid fertilizer.

[0026] A multi-nutrient optimized liquid fertilizer process for rice and corn, characterized in that the mixing temperature of the nitrogen source, phosphorus source and potassium source in Step 1 is 20°C-60°C, and the stirring time after adding the organic matter, humic acid and seaweed extract in Step 3 is 30 minutes to 2 hours.

[0027] The application discloses a multi-nutrient optimized liquid fertilizer for rice and corn, characterized in that after the surfactant is added in step four, the stirring time is 10 minutes to 1 hour, and the application concentration of the liquid fertilizer is 1% to 5%.

[0028] In use of the multi-nutrient optimized liquid fertilizer for rice and corn, first, the nitrogen, phosphorus and potassium sources are mixed with appropriate water, and stirred at 20-60°C until completely dissolved, then the trace elements are added into the mixture, and the organic matter, humic acid and seaweed extract are sequentially added, and stirred for 30 minutes to 2 hours to ensure uniformity, finally the surfactant is added and stirred uniformly to obtain the liquid fertilizer, then according to the growth stage of crops and the soil fertility, the required fertilizer concentration (usually 1%-5%) is determined, then the liquid fertilizer is mixed with appropriate water to ensure uniform dissolution of the fertilizer, for foliar spraying, it is suggested to choose windless and sunny weather, and use a sprayer to uniformly spray on the leaf surface of rice or corn, and the leaf surface is preferably wet but not dripping, and the spraying frequency is once every 7-14 days, for drip irrigation or soil fertilization, the diluted liquid fertilizer can be applied to the root system of crops through a drip irrigation system or directly irrigated around the root system to ensure uniform distribution of the fertilizer in the root system soil, so as to promote the crop root system to fully absorb nutrients, and after fertilization, the growth of crops is observed, and the fertilizer concentration and frequency are adjusted in time to achieve the best growth effect and yield improvement.

[0029] The above only describes the preferred embodiments of the application, and is not used to limit the application, and any modification, equivalent replacement and improvement made within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A multi-nutrient optimized liquid fertilizer formula for rice and corn, comprising the following raw materials by weight: 5%-25% nitrogen, 1%-20% phosphorus, 1%-20% potassium, and 0.1%-10% trace elements, including: Zinc, boron, manganese, iron, copper and molybdenum, organic matter 1%-20%, humic acid 1%-15%, seaweed extract 1%-10%, surfactant 0.1%-5%, balance water.

2. A multi-nutrient optimized liquid fertilizer formula for rice and corn, comprising the following raw materials by weight: 10%-20% nitrogen, 5%-15% phosphorus, 5%-15% potassium, and 0.5%-5% trace elements, including: Zinc, boron, manganese, iron, copper and molybdenum, organic matter 5%-15%, humic acid 2%-10%, seaweed extract 1%-5%, surfactant 0.1%-1%, and the balance water.

3. The multi-nutrient optimized liquid fertilizer formula for rice and corn according to claim 1, characterized in that: The organic matter is derived from one or more of decomposed plant residues, animal excrement or compost, and the humic acid is mineral humic acid or biochemical humic acid.

4. The multi-nutrient optimized liquid fertilizer formula for rice and corn according to claim 1, characterized in that: The seaweed extract is an extract of kelp, giant kelp or sargassum, and the surfactant is one or more of alkylbenzene sulfonate, fatty alcohol polyoxyethylene ether or alkylphenol polyoxyethylene ether.

5. The process for producing a multi-nutrient optimized liquid fertilizer for rice and corn according to claim 1, characterized in that: The following steps are involved: Step 1: Mix the nitrogen source, phosphorus source and potassium source in proportion, add appropriate amount of water and stir evenly; Step 2: adding trace elements in the form of soluble inorganic salts or chelates to the mixture of step 1 and stirring evenly; Step 3: Add organic matter, humic acid and seaweed extract and stir evenly; Step 4: Finally, add the surfactant and stir evenly to obtain liquid fertilizer.

6. The process for producing a multi-nutrient optimized liquid fertilizer for rice and corn according to claim 5, characterized in that: The mixing temperature of the nitrogen source, phosphorus source and potassium source in the step 1 is 20° C.-60° C., and after adding the organic matter, humic acid and seaweed extract in the step 3, the stirring time is 30 minutes to 2 hours.

7. The process for producing a multi-nutrient optimized liquid fertilizer for rice and corn according to claim 5, characterized in that: After adding the surfactant in step 4, the stirring time is 10 minutes to 1 hour, and the application concentration of the liquid fertilizer is 1% to 5%.