CN103588564A - Sugar alcohol calcium magnesium zinc boron compound liquid fertilizer and preparation method and applications thereof - Google Patents

Abstract

The invention belongs to the field of agricultural production and discloses a sugar alcohol calcium magnesium zinc boron compound liquid fertilizer and a preparation method and application thereof. The liquid fertilizer is composed of various mother liquors, chelating agents, plant growth regulators and surface active substances. In the present invention, sugar alcohols are respectively reacted with calcium salt, magnesium salt, zinc salt, and boric acid to obtain calcium, magnesium, zinc, and boron mother liquors, and then each mother liquor is mixed according to a certain ratio, and a chelating agent is added to make each mother liquor carry out secondary Chelation reaction, after a period of time, add plant growth regulator and surfactant to the reaction solution, mix evenly, cool to room temperature, and obtain high-concentration, stable and effective compound liquid fertilizer. The compound liquid fertilizer prepared by the invention not only provides sufficient nutrients such as calcium, magnesium, zinc and boron for crops, but also can mix different elements and proportions according to the needs of different crops and different growth stages of crops.

Description

Sugar alcohol calcium magnesium zinc boron compound liquid fertilizer and its preparation method and application

technical field

The invention belongs to the field of agricultural production, and in particular relates to a sugar alcohol calcium magnesium zinc boron compound liquid fertilizer and a preparation method and application thereof.

Background technique

Calcium and magnesium are important nutrients for plants. Most of the calcium exists in the cell wall as a structural component of the cell wall pectin. Calcium has the functions of stabilizing the cell membrane, stabilizing the cell wall, promoting cell elongation, root growth and osmotic adjustment. At the same time, the mobility of calcium in the plant is poor, resulting in calcium deficiency in crops; when calcium deficiency occurs, plant growth is hindered and the tissue is soft; Buds, lateral buds, and root tips are perishable and dead, and young leaves are curled and deformed. Leaf scorch occurs in cabbage, cabbage and lettuce due to calcium deficiency, bitter pit in apples, and navel rot in tomatoes and peppers. Magnesium plays an important role in the synthesis and photosynthesis of chloroplasts in leaves. Generally speaking, when the leaves contain more than 0.4% magnesium, magnesium is sufficient. According to relevant information, currently about 54% of the country's soil needs different levels of magnesium supplementation; when plants are deficient in magnesium, the prominent manifestations are the decrease of chloroplast content and chlorosis.

Zinc and boron are very important trace elements in plants. When zinc is deficient, plant growth is inhibited, especially internode growth is severely hindered, and intervein chlorosis or albinism symptoms are shown; boron exists in the form of acid radicals in plants and participates in many important physiological activities. It has an irreplaceable specific physiological function. Boron can promote the transportation and metabolism of carbohydrates, promote cell elongation and cell division, and promote the construction and development of reproductive organs. Boron has many nutritional functions. Boron deficiency is mainly manifested in the inhibition of shoot apex growth point, affected root system development, and hindered reproductive organ development. Boron-deficient crops usually have many typical symptoms, such as heart rot in sugar beets, flowers and fruit in rapeseed, and fruit shrinkage in apples.

Calcium and boron in plants have obvious mutual promoting effect. Most of calcium and boron in plants are bound to the pectin layer of the cell wall, thereby increasing the stability of the cell wall; at the same time, the distribution of calcium and boron at the subcellular level is also very similar, and they have obvious interactions. Enhance the stability of the macromolecular polymer where the other party is located (Njorogc CK, 1998). The study found that the calcium-boron interaction affects the structure and function of the membrane. It is speculated that the cell membrane is the site of the calcium-boron interaction, which jointly restricts the transport of auxin.

Most of the calcium-magnesium-zinc-boron fertilizers currently on the market are single elements, and there are also some calcium-boron compound fertilizers, but because of their principles and production processes, they are very expensive. Single application of one of calcium, magnesium, zinc and boron, on the one hand, is a waste of labor, on the other hand, it cannot achieve the absorption of calcium-boron interaction, thereby affecting the absorption efficiency.

Japanese patent (publication number: P2000-193894) liquid カルシェウム fertilizer involves the preparation of high-concentration elemental calcium fertilizer, but the composition is single, and does not contain magnesium, zinc, boron and surfactant; Chinese patent application (publication number: CN102701800A ) super-active fully water-soluble calcium-boron fertilizer preparation technology, although it involves calcium-boron fertilizer, the calcium in the raw material exists in an ion state, and the absorption efficiency is obviously affected; Chinese patent application (public number: CN102503657A) and Chinese patent (public number: CN101318861A ) all involve the preparation of calcium-boron foliar fertilizers. On the one hand, the boron content in the prepared foliar fertilizers is low; Satisfy the absorption of different nutrients by different crops; Chinese patent application (publication number: CN103159531A) a liquid fertilizer containing various phytoalcohols and medium and trace elements chelated and its preparation method, although it contains medium and trace elements, but the nutrient content is low, As a result, production costs and packaging costs are higher.

Contents of the invention

In order to overcome the shortcomings and deficiencies of the prior art, the primary purpose of the present invention is to provide a compound liquid fertilizer of sugar alcohol calcium magnesium zinc boron. The concentration of calcium, magnesium, zinc and boron elements in the compound liquid fertilizer has been increased through technical improvement and raw material selection, and the different mixing ratios of calcium, magnesium, zinc and boron have been increased.

Another object of the present invention is to provide a preparation method of the sugar alcohol calcium magnesium zinc boron compound liquid fertilizer.

Another object of the present invention is to provide the application of the above sugar alcohol calcium magnesium zinc boron compound liquid fertilizer.

The object of the present invention is achieved through the following technical solutions:

The invention relates to a compound liquid fertilizer of sugar alcohol calcium magnesium zinc boron, which is composed of mother liquid, chelating agent, plant growth regulator and surface active substances.

The mother liquor is a multi-element mother liquor or a single-element mother liquor; the multi-element mother liquor is two or more of chelated calcium mother liquor, chelated magnesium mother liquor, chelated zinc mother liquor and sugar alcohol boron mother liquor; the single-element mother liquor is a chelated calcium mother liquor , chelated magnesium mother liquor or chelated zinc mother liquor.

The described sugar alcohol calcium magnesium zinc boron compound liquid fertilizer consists of the following components in parts by mass:

The sum of the contents of each mother liquor is not zero.

The chelated calcium mother liquor is composed of the following components in parts by mass: 32-45 parts of water, 10-14 parts of sugar alcohol, 0-6 parts of glycerin, 0.2-0.5 parts of caustic alkali, 75-90 parts of inorganic calcium 2-6 parts of organic calcium.

The calcium concentration in the chelated calcium mother liquor is greater than or equal to 150g/L.

The inorganic calcium is at least one of calcium chloride, calcium nitrate and calcium ammonium nitrate, preferably calcium ammonium nitrate.

The organic calcium is more than one of calcium formate, calcium acetate and EDTA-calcium.

The chelated magnesium mother liquor is composed of the following components in parts by mass: 28 to 35 parts of water, 8 to 12 parts of sugar alcohol, 0.2 to 0.5 parts of caustic alkali, 80 to 90 parts of inorganic magnesium, 2.5 to 2.5 parts of organic magnesium 11 servings.

The magnesium concentration in the chelated magnesium mother liquor is greater than or equal to 80g/L.

The inorganic magnesium is one or both of magnesium chloride and magnesium nitrate, preferably magnesium nitrate.

The organic calcium is more than one of magnesium formate, magnesium acetate and EDTA-magnesium.

The chelated zinc mother liquor is composed of the following components in parts by mass: 40-47 parts of water, 10-12 parts of sugar alcohol, 0.2-0.5 parts of caustic alkali, 80-100 parts of inorganic zinc, 2-2 parts of organic zinc 18 servings.

The zinc concentration in the described chelated zinc mother liquor is greater than or equal to 165g/L.

The inorganic zinc is one or both of zinc chloride and zinc nitrate, preferably zinc nitrate.

The organic zinc is more than one of zinc formate, zinc acetate and EDTA-zinc.

The sugar alcohol boron mother liquor is composed of the following components in parts by mass: 15-23 parts of water, 6-8 parts of sugar alcohol, 5.5-8 parts of glycerin, 46.5-77 parts of boric acid, and 16-30 parts of alcohol amine .

The boron concentration in the sugar alcohol boron mother liquor is greater than or equal to 100g/L.

The alcohol amine is more than one of monoethanolamine, diethanolamine and triethanolamine.

The sugar alcohol is more than one of mannitol, sorbitol, xylitol and erythritol.

The caustic is sodium hydroxide or potassium hydroxide.

The chelating agent is more than one of ammonia carboxyl complexing agent, citric acid, malic acid and lactic acid.

The aminocarboxyl complexing agent is ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA) or N-hydroxyethylethylenediaminetriacetic acid (HEDTA).

The plant growth regulator is DA-6, naphthaleneacetic acid, sodium naphthalene acetate, gibberellin, KT-30, 6-BA, triacontanol, sodium nitrophenolate, brassinolide and allantoin more than one of .

The surface active substance is glycerin, sodium lignosulfonate, Tween, Span, alkylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, isomeric alcohol polyoxyethylene ether and cocamidopropyl betaine more than one of them.

The Tween is Tween 20, Tween 40 or Tween 80; the Span is Span 20; the fatty alcohol polyoxyethylene ether is fatty alcohol polyoxyethylene ether ammonium sulfate AESA; the alkylphenol The polyoxyethylene ether is alkylphenol polyoxyethylene ether TX-10; the isomeric alcohol polyoxyethylene ether is isomeric alcohol polyoxyethylene ether XP-50.

The preparation method of described sugar alcohol calcium magnesium zinc boron compound liquid fertilizer comprises the following steps:

(1) Preparation of chelated calcium mother liquor: add sugar alcohol, glycerin, and caustic alkali to water and mix evenly, heat up to 70°C to 90°C, add organic calcium, add inorganic calcium after it dissolves completely, perform chelation reaction, and take out chelate Combined solution is cooled to normal temperature, obtains chelated calcium mother liquor;

(2) Preparation of chelated magnesium mother liquor: add sugar alcohol and caustic alkali to water and mix evenly, heat up to 70°C-90°C, add organic magnesium, add inorganic magnesium after it dissolves completely, chelate reaction, take out chelated After the liquid is cooled to normal temperature, it is the mother liquor of chelated magnesium;

(3) Preparation of chelated zinc mother liquor: add sugar alcohol and caustic alkali to water and mix evenly, heat up to 70°C-90°C, add organic zinc, add inorganic zinc after dissolution, chelate reaction, take out chelate solution and cool to Normal temperature is the mother liquor of chelated zinc;

(4) Preparation of sugar alcohol boron mother liquor: add sugar alcohol and glycerin to water in turn, stir evenly, then add boric acid and alcohol amine, react at 60°C-70°C for 30min, and cool to room temperature to become sugar alcohol boron mother liquor;

(5) Preparation of compound liquid fertilizer: mix calcium, magnesium, zinc, and boron mother liquor, add chelating agent at 60°C to 70°C, make mother liquor and chelating agent undergo chelation reaction, and then add plant growth regulator and surfactant agent, and stir evenly to obtain sugar alcohol calcium magnesium zinc boron compound liquid fertilizer.

The chelation reaction time described in step (1) is 30min.

The chelation reaction time described in step (2) is 30min.

The chelation reaction time described in step (3) is 30min.

The chelation reaction time described in step (5) is 1 h.

The sugar alcohol calcium magnesium zinc boron compound liquid fertilizer is applied in agricultural fertilizers, and can act on vegetables, fruit trees, field crops and other crops, and the application method of the compound liquid fertilizer is foliage spraying and flushing.

Compared with the prior art, the present invention has the following advantages and effects:

(1) In terms of fertilizer ratio: through the chelation of calcium, magnesium, and zinc, the reaction between calcium, boron and zinc and boron is avoided, and the content of calcium, magnesium, zinc, and boron in the compound liquid fertilizer on the market is low, and calcium and boron cannot be used. Due to the limitation of free mixing, the preparation of the calcium-magnesium-zinc-boron compound liquid fertilizer is realized; and through comparative tests, it is found that the compound liquid fertilizer prepared by the invention has a better effect on plants.

(2) In terms of chelation: the chelating agent used in the first chelation of the present invention is sugar alcohol, which can combine with various nutrients to form a stable complex, and is also the only one that can carry mineral nutrients in the phloem The substance to be transported is a natural extract from the phloem juice of plants, which is non-toxic and does not cause any damage to plants or the human body; sugar alcohols have low molecular weight, are easily absorbed by leaves, and easily degrade and release nutrients when they enter the plant. Low energy consumption, and higher solubility in alkaline solution. In order to improve the utilization rate of nutrients, secondary chelation is carried out after mixing. The chelating agent used is ammonia carboxy complexing agent and organic acids. On the one hand, it can make up for the deficiency of the first chelation. Improve the absorption and utilization of nutrients.

(3) In terms of nutrition: Shear C.B. found that boron application can increase the absorption of calcium and promote the transportation of calcium, thereby increasing the calcium content in plants and fruits. Due to the mutual promoting effect of calcium and boron, the present invention improves the absorption and utilization rate of calcium and boron while providing high-concentration calcium and boron liquid fertilizer.

(4) In terms of adsorption and spreading: the sugar alcohol used in the present invention is a natural wetting agent with a moisturizing function, which can prevent the medicinal liquid from becoming invalid due to rapid drying on the leaves, and prolong the time for the leaves to absorb nutrients; A natural surfactant, which can spread and evenly cover the nutrient elements on the entire leaf, increase the absorption area of the leaf, and avoid burning the leaves due to excessive local concentration of trace nutrients; moreover, due to the addition of the surfactant, it is more It can improve the absorption and utilization rate of calcium, magnesium, zinc and boron.

(5) In terms of crops: the calcium, magnesium, zinc and boron of the present invention can be freely prepared within a certain concentration, and enterprises can change the ratio according to different crops and different growth periods, thereby increasing crop yield and quality; Utilization of magnesium, zinc and boron.

Detailed ways

The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

Example 1

(1) Preparation of chelated calcium mother liquor: Add 8 parts of sorbitol, 3 parts of mannitol, 3 parts of xylitol, 6 parts of glycerin and 0.5 parts of potassium hydroxide into 35 parts of water, heat at 70°C, and dissolve Finally, add 5 parts of calcium acetate, then add 83 parts of calcium ammonium nitrate, and continue to react for 30 minutes. After cooling, it will be the chelated calcium mother liquor, wherein the calcium concentration is 170g/L;

(2) Preparation of chelated zinc mother liquor: Add 5 parts of sorbitol, 5 parts of mannitol and 0.2 parts of sodium hydroxide to 40 parts of water, keep it warm at 70°C for 30 minutes, then add 18 parts of zinc acetate and 80 parts of zinc nitrate , continue to react for 30min, after cooling, it will be chelated calcium mother liquor, wherein the zinc is 230g/L;

(3) Preparation of sugar alcohol boron mother liquor: Add 4 parts of sorbitol, 4 parts of mannitol, and 5.5 parts of glycerin to 23 parts of water in sequence, stir evenly, then add 46.5 parts of boric acid and 16 parts of ethanolamine, and react at 60°C for 30 minutes. After cooling, it is sugar alcohol boron mother liquor, wherein boron is 100g/L;

(4) Preparation of compound liquid fertilizer: Mix 112 parts of chelated calcium mother liquor, 3.75 parts of chelated zinc mother liquor and 9.75 parts of sugar alcohol boron mother liquor, stir well and add 0.5 part of EDTA, chelate at 60°C for 1 hour, then add 2 1 part of DA-6 and 2 parts of sodium lignosulfonate were stirred and mixed evenly, and cooled at room temperature to obtain calcium-magnesium-zinc-boron compound liquid fertilizer.

This calcium magnesium zinc boron compound liquid fertilizer contains Ca: 136g/L, Zn: 5.5g/L, B: 7.5g/L.

Example 2

(1) Preparation of chelated calcium mother liquor: same as Example 1

(2) Preparation of chelated magnesium mother liquor: add 6 parts of sorbitol, 3 parts of mannitol, 3 parts of xylitol and 0.5 parts of potassium hydroxide into 35 parts of water, heat at 90°C, dissolve and add 11 parts of acetic acid Magnesium, add 80 parts of magnesium nitrate afterwards, continue to react 30min, use after cooling to be chelated magnesium mother liquor, wherein calcium is 95g/L;

(3) Preparation of chelated zinc mother liquor: same as Example 1

(4) Preparation of sugar alcohol boron mother liquor: Add 3 parts of sorbitol, 3 parts of mannitol, and 8 parts of glycerin to 20 parts of water in sequence, stir evenly, then add 65 parts of boric acid and 20 parts of ethanolamine, and react at 70°C for 30 minutes. Be sugar alcohol boron mother liquor after cooling, wherein boron is 130g/L;

(5) Mixing: Mix 84 parts of chelated calcium mother liquor, 26.6 parts of chelated magnesium mother liquor, 3.75 parts of chelated zinc mother liquor and 10.1 parts of sugar alcohol boron mother liquor, stir well and add 0.5 part of citric acid to chelate at 60°C for 1 hour, Then add 2 parts of DA-6 and 2 parts of sodium lignosulfonate, stir and mix evenly, and cool at room temperature to obtain calcium-magnesium-zinc-boron compound liquid fertilizer.

This calcium magnesium zinc boron compound liquid fertilizer contains Ca: 102g/L, Mg: 19g/L, Zn: 5.5g/L, B: 9.5g/L.

Example 3

(1) Preparation of chelated calcium mother liquor: Add 6 parts of sorbitol, 4 parts of mannitol and 0.2 parts of sodium hydroxide to 45 parts of water, heat at 90°C, add 2 parts of calcium formate after dissolution, and then add 75 parts Calcium ammonium nitrate, continue to react for 30 minutes, use after cooling to be the mother liquor of chelated calcium, wherein the calcium is 150g/L;

(2) Preparation of chelated magnesium mother liquor: Add 6 parts of sorbitol, 2 parts of mannitol and 0.3 parts of sodium hydroxide to 28 parts of water, heat at 90°C, add 2.5 parts of magnesium formate after dissolution, and then add 90 parts Magnesium nitrate, continue to react 30min, use after cooling to be chelated magnesium mother liquor, wherein calcium is 87g/L;

(3) Preparation of chelated zinc mother liquor: Add 6 parts of sorbitol, 6 parts of mannitol and 0.3 parts of sodium hydroxide to 47 parts of water, keep it warm at 90°C for 30 minutes, then add 2 parts of zinc formate and 98 parts of zinc nitrate , continue to react for 30min, after cooling, it will be chelated zinc mother liquor, wherein zinc is 210g/L;

(4) Preparation of sugar alcohol boron mother liquor: same as Example 1;

(3) Mixing: Mix 36.9 parts of chelated calcium mother liquor, 52 parts of chelated magnesium mother liquor, 14 parts of chelated zinc mother liquor and 13 parts of sugar alcohol boron mother liquor, stir well and add 0.5 part of EDTA to chelate at 60°C for 1 hour, then Add 1 part of DA-6, 1 part of Tween-20 and 1 part of sodium lignosulfonate, stir and mix evenly, and cool at room temperature to obtain calcium-magnesium-zinc-boron compound liquid fertilizer.

This calcium magnesium zinc boron compound liquid fertilizer contains Ca: 45g/L, Mg: 34g/L, Zn: 21g/L, B: 10g/L.

Example 4

(1) Preparation of chelated calcium mother liquor: Add 8 parts of sorbitol, 2 parts of mannitol, 2 parts of xylitol, 4 parts of glycerin and 0.4 parts of potassium hydroxide into 32 parts of water, heat at 70°C, and dissolve Finally, add 6 parts of calcium acetate, then add 90 parts of calcium ammonium nitrate, continue to react for 30 minutes, and use it as the chelated calcium mother liquor after cooling, wherein the calcium is 180g/L;

(2) Preparation of sugar alcohol boron mother liquor: same as Example 1;

(3) Mixing: Mix 120 parts of chelated calcium mother liquor and 13 parts of sugar alcohol boron mother liquor, stir evenly, add 1 part of EDTA for chelation at 60°C for 1 hour, then add 2 parts of DA-6 and 1 part of AESA, stir and mix evenly , and cooled at room temperature to obtain calcium-magnesium-zinc-boron compound liquid fertilizer.

This calcium magnesium zinc boron compound liquid fertilizer contains Ca: 144g/L, B: 10g/L.

Example 5

(1) Preparation of chelated calcium mother liquor: same as Example 4;

(2) Preparation of chelated magnesium mother liquor: same as Example 2;

(3) Preparation of sugar alcohol boron mother liquor: same as Example 1;

(4) Mixing: Mix 75 parts of chelated calcium mother liquor, 39.9 parts of chelated magnesium mother liquor and 13 parts of sugar alcohol boron mother liquor, stir evenly, add 0.5 part of malic acid for chelation at 60°C for 1 hour, then add 0.5 part of sodium naphthalene acetate , 1 part of TX-10 and 0.5 part of Tween-80, stirred and mixed evenly, and cooled at room temperature to obtain a calcium-magnesium-zinc-boron compound liquid fertilizer.

This calcium magnesium zinc boron compound liquid fertilizer contains Ca: 90g/L, Mg: 28g/L, B: 10g/L.

Example 6

(1) Preparation of chelated calcium mother liquor: same as Example 1;

(2) Preparation of chelated magnesium mother liquor: same as Example 2;

(3) Preparation of chelated zinc mother liquor: same as Example 1;

(4) Mixing: Mix 84 parts of chelated calcium mother liquor, 13.3 parts of chelated magnesium mother liquor and 15 parts of chelated zinc mother liquor, stir well and add 0.5 part of EDTA to chelate at 65°C for 1 hour, then add 0.5 part of DA-6, 0.5 parts of gibberellin, 1 part of Tween 40 and 1 part of cocamidopropyl betaine were stirred and mixed evenly, and cooled at room temperature to obtain a calcium-magnesium-zinc-boron compound liquid fertilizer.

This calcium magnesium zinc boron compound liquid fertilizer contains Ca: 102g/L, Mg: 9.5g/L, Zn: 23g/L.

Example 7

(1) Preparation of chelated calcium mother liquor: add 6 parts of sorbitol, 4 parts of mannitol and 0.3 parts of sodium hydroxide to 45 parts of water, heat at 80 ° C, add 2 parts of EDTA calcium after dissolution, and then add 90 parts Calcium ammonium nitrate, continue to react for 30 minutes, use after cooling to be the mother liquor of chelated calcium, wherein the calcium is 160g/L;

(2) Preparation of chelated magnesium mother liquor: add 6 parts of sorbitol, 4 parts of mannitol and 0.2 parts of sodium hydroxide to 30 parts of water, heat at 80°C, add 5 parts of magnesium EDTA after dissolution, and then add 90 parts Magnesium nitrate, continue to react 30min, use after cooling to be chelated magnesium mother liquor, wherein calcium is 90g/L;

(3) Preparation of chelated zinc mother liquor: add 6 parts of sorbitol, 5 parts of mannitol and 0.5 parts of sodium hydroxide to 42 parts of water, keep it warm at 80°C for 30 minutes, then add 2 parts of EDTA zinc and 100 parts of zinc nitrate , continue to react for 30min, after cooling, it will be chelated zinc mother liquor, wherein zinc is 220g/L;

(4) Preparation of sugar alcohol boron mother liquor: add 4 parts of sorbitol, 3 parts of mannitol, and 6 parts of glycerin to 15 parts of water in turn, stir evenly, then add 77 parts of boric acid, 10 parts of triethanolamine, and 20 parts of ethanolamine. React at ℃ for 30 minutes, and after cooling, it will be the sugar alcohol boron mother liquor, in which boron is 130g/L;

(5) Mixing: Mix 37.5 parts of chelated calcium mother liquor, 50 parts of chelated magnesium mother liquor, 14 parts of chelated zinc mother liquor and 13 parts of sugar alcohol boron mother liquor, stir well and add 0.5 part of DTPA to chelate at 70°C for 1 hour, then Add 0.2 parts of triacontanol, 1 part of Tween-20 and 1 part of XP-50, stir and mix evenly, and cool at room temperature to obtain calcium-magnesium-zinc-boron compound liquid fertilizer.

This calcium magnesium zinc boron compound liquid fertilizer contains Ca: 50g/L, Mg: 35g/L, Zn: 25g/L, B: 10g/L.

Example 8

(1) Preparation of chelated calcium mother liquor: Add 8 parts of sorbitol, 2 parts of mannitol, 2 parts of xylitol, 4 parts of glycerin and 0.4 parts of potassium hydroxide into 32 parts of water, heat at 70°C, and dissolve Finally, add 6 parts of calcium acetate, then add 95 parts of calcium ammonium nitrate, and continue to react for 30 minutes. After cooling, it will be the mother liquor of chelated calcium, wherein the calcium is 180g/L;

(2) Mixing: Mix 150 parts of chelated calcium mother liquor, 0 parts of chelated magnesium, 0 parts of chelated zinc and 0 part of sugar alcohol boron, add 0.2 parts of EDTA to chelate at 60 ° C for 1 hour, and then add 0.5 parts of Stir KT-30 and 0.5 part of sodium lignosulfonate evenly, cool to normal temperature to obtain calcium-magnesium-zinc-boron compound liquid fertilizer.

This calcium magnesium zinc boron compound liquid fertilizer contains Ca: 180g/L.

Example 9

(1) Preparation of chelated magnesium mother liquor: Add 6 parts of sorbitol, 3 parts of mannitol, 3 parts of xylitol and 0.5 parts of potassium hydroxide into 35 parts of water, heat at 90°C, dissolve and add 11 parts of acetic acid Magnesium, add 80 parts of magnesium nitrate afterwards, continue to react 30min, use after cooling to be chelated magnesium mother liquor, wherein magnesium is 95g/L;

(2) Mixing: Mix 133 parts of chelated magnesium mother liquor, 0 part of chelated calcium mother liquor, 0 part of chelated zinc and 0 part of sugar alcohol boron, add 0.5 part of EDTA and chelate at 60 °C for 1 hour, then add 0.2 part The sodium naphthalene acetate and 0.5 parts of sodium lignosulfonate were stirred and mixed evenly, cooled to normal temperature, and mixed evenly to obtain a calcium-magnesium-zinc-boron compound liquid fertilizer.

This calcium magnesium zinc boron compound liquid fertilizer contains Mg: 95g/L.

Example 10

(1) Preparation of chelated zinc mother liquor: Add 5 parts of sorbitol, 5 parts of mannitol and 0.2 parts of sodium hydroxide to 40 parts of water, keep it warm at 70°C for 30 minutes, then add 18 parts of zinc acetate and 100 parts of zinc nitrate , continue to react for 30min, after cooling, it will be the mother liquor of chelated calcium, wherein zinc is 250g/L;

(2) Mixing: Mix 155 parts of chelated zinc mother liquor, 0 part of chelated calcium mother liquor, 0 part of chelated magnesium and 0 part of sugar alcohol boron, add 0.5 part of DTPA at 60 ° C for 1 hour, and then add 0.2 part KT-30 and 0.5 parts of sodium lignosulfonate were stirred and mixed evenly, cooled to room temperature, and mixed evenly to obtain calcium-magnesium-zinc-boron compound liquid fertilizer.

This calcium magnesium zinc boron compound liquid fertilizer contains Zn: 250g/L.

Embodiment 11 Soil cultivation effect test

The sugar alcohol calcium magnesium zinc boron composite liquid fertilizer prepared by the present invention is sprayed on eggplant, and the test is as follows:

Using the sugar alcohol calcium magnesium zinc boron compound liquid fertilizer I prepared in Example 1 and the sugar alcohol calcium magnesium zinc boron compound liquid fertilizer II prepared in Example 2, the potted plants and the plants in the foam box were respectively tested on the same day. One potted plant was planted in each pot, divided into blank control group, sugar alcohol type Ⅰ group and sugar alcohol type Ⅱ group, and three pots were planted in each group; 3 plants were planted in each foam box, and the three boxes were respectively blank control group and sugar alcohol type Ⅰ group and sugar alcohol type II group. These groups of plants were sprayed with 1000-fold diluted sugar alcohol compound liquid fertilizer 2 times before flowering respectively. After spraying 2 times, the effect was as follows:

By comparison, the treatment group sprayed with fertilizers is superior to the blank control group in all aspects. The chlorophyll value (SPAD) of the treatment group is 5.33-10.17 higher than that of the control group on average, the plant height is 4.8-8.2 cm higher than that of the control group, and the number of leaves is higher than that of the control group. Add 1.2-2 slices, and the treatment group blooms 2-3 days earlier than the control group, and the flowers do not fall after flowering. In addition, the spraying effect of sugar alcohol type II in the treatment group is the best. Some traits of the plants in each group are shown in Table 1:

Table 1 Partial traits of plants in each group

control group Sugar alcohol type Ⅰ Sugar alcohol type Ⅱ Plant height cm 32.5 37.3 40.7 SPAD value 42.31 47.64 52.48 number of expanded leaves 7.1 8.3 9.1

The embodiments described above only illustrate the basic principles of the present invention, but the embodiments of the present invention are not limited by the above examples, and any other changes, modifications, substitutions, Combination and simplification should all be equivalent replacement methods, and are all included in the protection scope of the present invention.

Claims (10)

1. a sugar alcohol calcium magnesium zinc boron composite liquid fertilizer, is comprised of mother liquor, sequestrant, plant-growth regulator and surfactant;

Described mother liquor is multielement mother liquor or single element mother liquor; Multielement mother liquor is two or more in chelating mother liquor of calcium, chelated magnesium mother liquor, chelated zinc mother liquor and sugar alcohol boron mother liquor; Single element mother liquor is chelating mother liquor of calcium, chelated magnesium mother liquor or chelated zinc mother liquor.

2. sugar alcohol calcium magnesium zinc boron composite liquid fertilizer according to claim 1, is characterized in that: following component according to the mass fraction, consist of:

Wherein the content sum of each mother liquor is non-vanishing.

3. sugar alcohol calcium magnesium zinc boron composite liquid fertilizer according to claim 1 and 2, is characterized in that: described chelating mother liquor of calcium is comprised of following component according to the mass fraction: 32～45 parts, water, 10～14 parts of sugar alcohols, 0～6 part of glycerine, 0.2～0.5 part, caustic alkali, 75～90 parts of inorganic calciums, 2～6 parts of organic calciums;

Calcium concn >=150g/L in described chelating mother liquor of calcium;

Described inorganic calcium is more than one in calcium chloride, nitrocalcite and calcium ammonium nitrate;

Described organic calcium is more than one in calcium formiate, lime acetate and EDTA-calcium.

4. sugar alcohol calcium magnesium zinc boron composite liquid fertilizer according to claim 1 and 2, is characterized in that: described chelated magnesium mother liquor is comprised of following component according to the mass fraction: 28～35 parts, water, 8～12 parts of sugar alcohols, 0.2～0.5 part, caustic alkali, 80～90 parts of inorganic magnesiums, 2.5～11 parts of organic-magnesiums;

Magnesium density >=80g/L in described chelated magnesium mother liquor;

Described inorganic magnesium is more than one in magnesium chloride and magnesium nitrate;

Described organic calcium is more than one in magnesium formiate, magnesium acetate and EDTA-magnesium.

5. sugar alcohol calcium magnesium zinc boron composite liquid fertilizer according to claim 1 and 2, is characterized in that: described chelated zinc mother liquor is comprised of following component according to the mass fraction: 40～47 parts, water, 10～12 parts of sugar alcohols, 0.2～0.5 part, caustic alkali, 80～100 parts of inorganic zincs, 2～18 parts of organic zincs;

Zinc concentration >=165g/L in described chelated zinc mother liquor;

Described inorganic zinc is more than one in zinc chloride and zinc nitrate;

Described organic zinc is more than one in zinc formate, zinc acetate and EDTA-zinc.

6. sugar alcohol calcium magnesium zinc boron composite liquid fertilizer according to claim 1 and 2, is characterized in that: described sugar alcohol boron mother liquor is comprised of following component according to the mass fraction: 15～23 parts, water, 6～8 parts of sugar alcohols, 5.5～8 parts of glycerine, 46.5～77 parts of boric acid, 16～30 parts of hydramine;

Boron concentration >=100g/L in described sugar alcohol boron mother liquor;

Described hydramine is more than one in monoethanolamine, diethanolamine and trolamine.

7. according to the sugar alcohol calcium magnesium zinc boron composite liquid fertilizer described in claim 3 or 4 or 5 or 6, it is characterized in that: described sugar alcohol is more than one in mannitol, Sorbitol Powder, Xylitol and erythritol;

Described caustic alkali is sodium hydroxide or potassium hydroxide.

8. sugar alcohol calcium magnesium zinc boron composite liquid fertilizer according to claim 1, is characterized in that: described sequestrant is more than one in complexone, citric acid, oxysuccinic acid and lactic acid;

Described complexone is EDTA, DTPA or HEDTA;

Described plant-growth regulator is more than one in DA-6, naphthylacetic acid, Nafusaku, Plant hormones regulators,gibberellins, KT-30,6-BA, triacontanol price quote, sodium nitrophenolate, study on brassinolide and wallantoin;

Described surfactant is more than one in glycerine, sodium lignosulfonate, tween, sapn, fatty alcohol-polyoxyethylene ether, alkylphenol polyoxyethylene, isomery polyoxyethylenated alcohol and AMONYL 380LC;

Described tween is polysorbas20, polysorbate40 or tween 80; Described sapn is span 20; Described fatty alcohol-polyoxyethylene ether is AESA AESA; Described alkylphenol polyoxyethylene is alkylphenol polyoxyethylene TX-10; Described isomery polyoxyethylenated alcohol is isomery polyoxyethylenated alcohol XP-50.

9. the preparation method of sugar alcohol calcium magnesium zinc boron composite liquid fertilizer according to claim 1, is characterized in that: comprise the following steps:

(1) chelating mother liquor of calcium preparation: after sugar alcohol, glycerine, caustic alkali are added to the water and are mixed, be warming up to 70 ℃～90 ℃, add organic calcium, add inorganic calcium after its dissolve complete, chelatropic reaction, takes out chelating liquid and be cooled to normal temperature, obtains chelating mother liquor of calcium;

(2) chelated magnesium mother liquor preparation: after sugar alcohol, caustic alkali are added to the water and are mixed, be warming up to 70 ℃～90 ℃, add organic-magnesium, add inorganic magnesium after its dissolve complete, chelatropic reaction, takes out after chelating liquid is cooled to normal temperature and be chelated magnesium mother liquor;

(3) chelated zinc mother liquor preparation: after sugar alcohol, caustic alkali are added to the water and are mixed, be warming up to 70 ℃～90 ℃, add organic zinc, add inorganic zinc after dissolving, chelatropic reaction, takes out chelating liquid and be cooled to normal temperature and be chelated zinc mother liquor;

(4) sugar alcohol boron mother liquor preparation: sugar alcohol, glycerine are added to the water successively, stir, then add boric acid and hydramine, react 30min at 60 ℃～70 ℃, be sugar alcohol boron mother liquor after being cooled to normal temperature;

(5) preparation of composite liquid fertilizer: calcium, magnesium, zinc, boron mother liquor are mixed, at 60 ℃～70 ℃, add sequestrant, make mother liquor and sequestrant carry out huge legendary turtle and close and react, then add plant-growth regulator and tensio-active agent, stir, obtain sugar alcohol calcium magnesium zinc boron composite liquid fertilizer;

It is 30min that huge legendary turtle described in step (1) is closed the reaction times; It is 30min that huge legendary turtle described in step (2) is closed the reaction times; The chelatropic reaction time described in step (3) is 30min; It is 1h that huge legendary turtle described in step (5) is closed the reaction times.

10. the application of sugar alcohol calcium magnesium zinc boron composite liquid fertilizer according to claim 1, is characterized in that: the application of described composite liquid fertilizer in agricultural fertilizer.