Plant nutrient solution and preparation process thereof

Abstract

The invention discloses a plant nutrient solution which comprises a component A and a component B. The component A comprises potassium nitrate, calcium nitrate tetrahydrate, borax, EDTA zinc and urea. The component B comprises monopotassium phosphate, potassium sulfate, ammonium dihydrogen phosphate, magnesium sulfate, DTPA iron, EDTA manganese, copper sulfate and ammonium heptamolybdate; each 10 L of the plant nutrient solution comprises the following components by mass: 1.8 kg of potassium nitrate, 4.9 kg of calcium nitrate tetrahydrate, 0.121 kg of borax, 0.021 kg of EDTA zinc, and 0.2 kg of urea. The component B comprises 0.86 kg of monopotassium phosphate, 0.3 kg of potassium sulfate, 0.15 kg of ammonium dihydrogen phosphate, 2 kg of magnesium sulfate, 0.21 kg of DTPA iron, 0.103 kg of EDTA manganese, 0.002 kg of copper sulfate and 0.017 kg of ammonium heptamolybdate; according to the invention, chemical reagents with high-concentration ratio are accurately proportioned, the proportioning balance of the reagents can be ensured in the preparation process, and meanwhile, trace elements such as molybdenum and boron are added, so that the endogenous hormone regulation and metabolism alleviation of plants in the growth process of the plants can be improved, and the growth of the plants is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of plant planting, in particular to a plant nutrient solution and a preparation process thereof. Background Art

[0002] During the growth process of plants, they absorb nutrients from the soil or hydroponic solution (nutrient solution) through their roots, and through a series of complex physiological processes, they convert these elements into substances they need to support their growth, development and reproduction. The elements required for plant growth can be roughly divided into three categories: macroelements, trace elements and auxiliary nutrients; among them, macroelements include C, H, O, N, N, K, etc., and trace elements include Fe, Zn, Cu, Mn, B, etc. Therefore, plant nutrient solution is a specially formulated solution that contains various nutrients required for plant growth.

[0003] At present, there are many chemical reagents used in the preparation of nutrient solution, and the preparation process is complicated. If you do not pay attention to the details of the preparation of nutrient solution, it will often cause problems such as nutrient solution mismatch and excessive nutrient solution concentration. Especially for high-concentration chemical reagents, it is more necessary to ensure the balance of the ratio between the reagents during the preparation process; some nutrient solutions ignore the addition of trace elements such as molybdenum and boron, which reduces the endogenous hormone regulation and metabolism of plants during their growth, which is not conducive to plant growth.

[0004] To this end, the present application proposes a high-concentration chemical reagent, which can ensure the balanced ratio of each reagent during the preparation process, and at the same time add trace elements such as molybdenum and boron, so that the endogenous hormone regulation and metabolism of plants can be improved during the growth process, which is conducive to the growth of plants. Summary of the invention

[0005] The embodiment of the present application provides a plant nutrient solution and accurately sets the ratio of high-concentration chemical reagents to ensure a balanced ratio between the reagents during the preparation process. At the same time, trace elements such as molybdenum and boron are added to improve the endogenous hormone regulation and metabolism of the plant during its growth, which is beneficial to the growth of the plant.

[0006] The present application embodiment provides a plant nutrient solution, including a group A component and a group B component,

[0007] Group A includes potassium nitrate, calcium nitrate tetrahydrate, borax, EDTA zinc, and urea; Group B includes potassium dihydrogen phosphate, potassium sulfate, ammonium dihydrogen phosphate, magnesium sulfate, DTPA iron, EDTA manganese, copper sulfate, and ammonium heptamolybdate;

[0008] The mass proportions of the above components in every 10L of plant nutrient solution are: 1.6-2kg of potassium nitrate, 4.7-5.1kg of calcium nitrate tetrahydrate, 0.121-0.127kg of borax, 0.021-0.027kg of EDTA zinc, and 0.17-0.5kg of urea; Group B components include 0.83-0.89kg of potassium dihydrogen phosphate, 0.25-0.35kg of potassium sulfate, 0.11-0.19kg of ammonium dihydrogen phosphate, 1.3-2.7kg of magnesium sulfate, 0.21-0.29kg of DTPA iron, 0.103-0.114kg of EDTA manganese, 0.002-0.009kg of copper sulfate, and 0.017-0.009kg of ammonium heptamolybdate.

[0009] Preferably, the mass proportions of the above components in every 10L of plant nutrient solution are: 1.8kg potassium nitrate, 4.9kg calcium nitrate tetrahydrate, 0.121kg borax, 0.021kg EDTA zinc, and 0.2kg urea; Group B components include 0.86kg potassium dihydrogen phosphate, 0.3kg potassium sulfate, 0.15kg ammonium dihydrogen phosphate, 2kg magnesium sulfate, 0.21kg DTPA iron, 0.103kg EDTA manganese, 0.002kg copper sulfate, and 0.017kg ammonium heptamolybdate.

[0010] Preferably, the mass proportions of the above components in every 10L of plant nutrient solution are: 1.8kg potassium nitrate, 4.9kg calcium nitrate tetrahydrate, 0.125kg borax, 0.024kg EDTA zinc, and 0.2kg urea; Group B components include 0.86kg potassium dihydrogen phosphate, 0.3kg potassium sulfate, 0.15kg ammonium dihydrogen phosphate, 2kg magnesium sulfate, 0.24kg DTPA iron, 0.108kg EDTA manganese, 0.006kg copper sulfate, and 0.002kg ammonium heptamolybdate.

[0011] Preferably, the mass proportions of the above components in every 10L of plant nutrient solution are: 1.8kg potassium nitrate, 4.9kg calcium nitrate tetrahydrate, 0.127kg borax, 0.027kg EDTA zinc, and 0.2kg urea; Group B components include 0.86kg potassium dihydrogen phosphate, 0.3kg potassium sulfate, 0.15kg ammonium dihydrogen phosphate, 2kg magnesium sulfate, 0.28kg DTPA iron, 0.114kg EDTA manganese, 0.009kg copper sulfate, and 0.009kg ammonium heptamolybdate.

[0012] Borax, also known as sodium borate decahydrate, is a boron-containing mineral. The right amount of boron can enhance the resistance of plants to drought, cold and disease. Borax provides the boron element required by plants. Only a very small concentration is needed to meet the needs of plants. Excessive application may cause boron poisoning.

[0013] EDTA zinc, or zinc ethylenediaminetetraacetic acid, is a chelated zinc fertilizer that is often used in plant nutrient solution to provide the zinc element required for plant growth. EDTA is a powerful chelating agent that can form stable chelates with zinc ions, protecting zinc ions from being replaced by other ions in the soil. Avoid excessive use when using it, as excessive EDTA may have an impact on the environment.

[0014] DTPA iron, or diethylenetriamine pentaacetate ferric, is a chelated iron fertilizer. DTPA is a powerful chelating agent that can form stable chelates with iron ions, making iron easier to absorb and transport in plants. DTPA iron is relatively safe, but excessive use should still be avoided to avoid damage to plants.

[0015] EDTA manganese, also known as ethylenediaminetetraacetic acid manganese (Mn-EDTA), is a chelated manganese fertilizer. EDTA is a powerful chelating agent that can form a stable chelate with manganese ions, making manganese easier to absorb and utilize in plants. EDTA manganese is relatively safe, but excessive use should still be avoided to avoid damage to plants.

[0016] Copper sulfate provides plants with the copper element necessary for growth. Copper is a component of many enzymes in plants and is essential for plant growth and development. When applying, the concentration must be strictly controlled to avoid excessive amounts, so as not to cause copper poisoning in plants.

[0017] Ammonium heptamolybdate provides plants with molybdenum, a trace element necessary for growth. Molybdenum is a component of enzymes such as nitrate reductase and nitrogenase, and is essential for plant growth and development. Ammonium heptamolybdate has little negative impact on the environment, but if applied excessively, molybdenum may accumulate in the soil and affect the ecosystem.

[0018] The process for preparing the nutrient solution according to the above components is specifically carried out according to the following steps:

[0019] (1) Weighing raw materials: Accurately weigh various raw materials according to their composition;

[0020] (2) Dissolving and mixing: Dissolve the insoluble substances such as calcium nitrate tetrahydrate, borax, potassium dihydrogen phosphate, ammonium dihydrogen phosphate, and ammonium heptamolybdate in hot water respectively; dissolve the soluble substances such as potassium nitrate, urea, EDTA zinc, potassium sulfate, magnesium sulfate, DTPA iron, EDTA manganese, and copper sulfate in water respectively;

[0021] (3) Preparation of mother solution: Pour all the above separately dissolved solutions into a large container and stir them thoroughly to mix them evenly. Use phosphoric acid to adjust the pH value of the solution;

[0022] (4) Adjust the concentration: Add 10L of water to dilute the mother liquor to the required concentration, then filter the mixed nutrient solution to remove undissolved solid particles. Finally, store the prepared nutrient solution in a clean, sealed container in a cool place, away from light and high temperature.

[0023] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: by accurately setting the ratio of high-concentration chemical reagents, the ratio of each reagent can be balanced during the preparation process, and trace elements such as molybdenum and boron are added at the same time, so that the endogenous hormone regulation and metabolism of plants during their growth can be improved, which is conducive to the growth of plants. DETAILED DESCRIPTION

[0024] In order to facilitate understanding of the present invention, the present invention is described more fully below. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] Embodiment 1

[0027] Plant nutrient solution, the mass proportions of the above components in every 10L of plant nutrient solution are: 1.8kg potassium nitrate, 4.9kg calcium nitrate tetrahydrate, 0.121kg borax, 0.021kg EDTA zinc, 0.2kg urea; Group B components include 0.86kg potassium dihydrogen phosphate, 0.3kg potassium sulfate, 0.15kg ammonium dihydrogen phosphate, 2kg magnesium sulfate, 0.21kg DTPA iron, 0.103kg EDTA manganese, 0.002kg copper sulfate, and 0.017kg ammonium heptamolybdate.

[0028] The process for preparing the nutrient solution with the above components is specifically carried out according to the following process: according to the components, various raw materials are accurately weighed for use; calcium nitrate tetrahydrate, borax, potassium dihydrogen phosphate, ammonium dihydrogen phosphate, and ammonium heptamolybdate, which are insoluble substances, are dissolved in hot water at 40-45°C respectively; potassium nitrate, urea, EDTA zinc, potassium sulfate, magnesium sulfate, DTPA iron, EDTA manganese, and copper sulfate, which are soluble substances, are dissolved in water respectively; then all the separately dissolved solutions are poured into a large container, and stirred thoroughly to mix them evenly, and phosphoric acid is used to adjust the pH value of the solution (usually between 5.5-6.5); then 10L of water is added to dilute the mother liquor to the required concentration, and then the mixed nutrient solution is filtered to remove undissolved solid particles, and finally the prepared nutrient solution is stored in a clean, sealed container in a cool place to avoid light and high temperature.

[0029] Embodiment 2

[0030] Plant nutrient solution, the mass proportions of the above components in every 10L of plant nutrient solution are: 1.8kg potassium nitrate, 4.9kg calcium nitrate tetrahydrate, 0.125kg borax, 0.024kg EDTA zinc, 0.2kg urea; Group B components include 0.86kg potassium dihydrogen phosphate, 0.3kg potassium sulfate, 0.15kg ammonium dihydrogen phosphate, 2kg magnesium sulfate, 0.24kg DTPA iron, 0.108kg EDTA manganese, 0.006kg copper sulfate, and 0.002kg ammonium heptamolybdate.

[0031] The process for preparing the nutrient solution with the above components is specifically carried out according to the following process: according to the components, various raw materials are accurately weighed for use; calcium nitrate tetrahydrate, borax, potassium dihydrogen phosphate, ammonium dihydrogen phosphate, and ammonium heptamolybdate, which are insoluble substances, are dissolved in hot water at 40-45°C respectively; potassium nitrate, urea, EDTA zinc, potassium sulfate, magnesium sulfate, DTPA iron, EDTA manganese, and copper sulfate, which are soluble substances, are dissolved in water respectively; then all the separately dissolved solutions are poured into a large container, and stirred thoroughly to mix them evenly, and phosphoric acid is used to adjust the pH value of the solution (usually between 5.5-6.5); then 10L of water is added to dilute the mother liquor to the required concentration, and then the mixed nutrient solution is filtered to remove undissolved solid particles, and finally the prepared nutrient solution is stored in a clean, sealed container in a cool place to avoid light and high temperature.

[0032] Embodiment 3

[0033] Plant nutrient solution, the mass proportions of the above components in every 10L of plant nutrient solution are: 1.8kg potassium nitrate, 4.9kg calcium nitrate tetrahydrate, 0.127kg borax, 0.027kg EDTA zinc, 0.2kg urea; Group B components include 0.86kg potassium dihydrogen phosphate, 0.3kg potassium sulfate, 0.15kg ammonium dihydrogen phosphate, 2kg magnesium sulfate, 0.28kg DTPA iron, 0.114kg EDTA manganese, 0.009kg copper sulfate, and 0.009kg ammonium heptamolybdate.

[0034] The process for preparing the nutrient solution with the above components is specifically carried out according to the following process: according to the components, various raw materials are accurately weighed for use; calcium nitrate tetrahydrate, borax, potassium dihydrogen phosphate, ammonium dihydrogen phosphate, and ammonium heptamolybdate, which are insoluble substances, are dissolved in hot water at 40-45°C respectively; potassium nitrate, urea, EDTA zinc, potassium sulfate, magnesium sulfate, DTPA iron, EDTA manganese, and copper sulfate, which are soluble substances, are dissolved in water respectively; then all the separately dissolved solutions are poured into a large container, and stirred thoroughly to mix them evenly, and phosphoric acid is used to adjust the pH value of the solution (usually between 5.5-6.5); then 10L of water is added to dilute the mother liquor to the required concentration, and then the mixed nutrient solution is filtered to remove undissolved solid particles, and finally the prepared nutrient solution is stored in a clean, sealed container in a cool place to avoid light and high temperature.

[0035] Experimental Example 1

[0036] Plant cultivation test: The plant nutrient solutions prepared in Examples 1-3 were used as culture solutions for tulips, respectively. 54 tulips in flowering period were divided into 3 groups, each group had 18 tulips, and then divided into 6 groups. The secondary roots of the tulips were removed, and the main roots were retained. The roots were rinsed with clean water and then placed in the culture solution for cultivation. After one month, the rooting, leaf growth and flowering state of the tulips were observed, and the main root size, leaf size and number of flowers were measured. The measurement results are shown in Table 1.

[0037] Table 1

[0038]

[0039]

[0040] It can be clearly seen from the data in Table 1 that the addition of appropriate trace elements is more conducive to plant growth.

[0041] Experimental Example 2

[0042] Plant cultivation test: 3 foam planting boxes were selected, filled with soil and then planted with lettuce. About 15 lettuce seedlings were planted in each foam planting box. The plant nutrient solution prepared in Examples 1-3 was used as the nutrient solution for the growth of lettuce, and added once a week. After one month, the number of surviving lettuces and the growth status were observed, and the results were recorded as shown in Table 2;

[0043] Table 2

[0044]

[0045] It can be clearly seen from the data in Table 2 that the addition of appropriate trace elements is more conducive to plant growth.

[0046] At the same time, soil from three foam planting boxes was extracted as experimental samples and ICP-OES tests were performed to test the content of zinc, iron, manganese, copper and molybdenum in the soil. The test results are shown in Table 3:

[0047] Table 3

[0048]

[0049] It can be clearly seen from the data in 3 that the addition of appropriate amounts of trace elements can avoid the accumulation of trace elements in the soil.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A plant nutrient solution, comprising a group A component and a group B component, characterized in that: Group A includes potassium nitrate, calcium nitrate tetrahydrate, borax, EDTA zinc, and urea; Group B includes potassium dihydrogen phosphate, potassium sulfate, ammonium dihydrogen phosphate, magnesium sulfate, DTPA iron, EDTA manganese, copper sulfate, and ammonium heptamolybdate; The mass proportions of the above components in every 10L of plant nutrient solution are: 1.8kg potassium nitrate, 4.9kg calcium nitrate tetrahydrate, 0.121kg borax, 0.021kg EDTA zinc, and 0.2kg urea; Group B components include 0.86kg potassium dihydrogen phosphate, 0.3kg potassium sulfate, 0.15kg ammonium dihydrogen phosphate, 2kg magnesium sulfate, 0.21kg DTPA iron, 0.103kg EDTA manganese, 0.002kg copper sulfate, and 0.017kg ammonium heptamolybdate.

2. The process for preparing the plant nutrient solution according to claim 1, wherein: Please follow the steps below: (1) Weighing raw materials: Accurately weigh various raw materials according to their composition; (2) Dissolving and mixing: Dissolve the insoluble substances such as calcium nitrate tetrahydrate, borax, potassium dihydrogen phosphate, ammonium dihydrogen phosphate, and ammonium heptamolybdate in hot water respectively; dissolve the soluble substances such as potassium nitrate, urea, EDTA zinc, potassium sulfate, magnesium sulfate, DTPA iron, EDTA manganese, and copper sulfate in water respectively; (3) Preparation of mother solution: Pour all the above separately dissolved solutions into a large container and stir them thoroughly to mix them evenly. Use phosphoric acid to adjust the pH value of the solution; (4) Adjust the concentration: Add 10L of water to dilute the mother liquor to the required concentration, then filter the mixed nutrient solution to remove undissolved solid particles. Finally, store the prepared nutrient solution in a clean, sealed container in a cool place, away from light and high temperature.

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