Synergistic fertilizer containing glycoside substances and preparation process thereof

Abstract

The invention provides a glycoside substance-containing synergistic fertilizer and a preparation process thereof. The glycoside substance-containing synergistic fertilizer comprises the following raw materials in parts by weight: 5-40 parts of plant extract glycoside, 1-5 parts of a microbial agent, 10-40 parts of urea, 1-30 parts of diammonium phosphate and 1-25 parts of potassium sulfate. The invention aims to improve the stability of the fertilizer effect, promote the growth of plants and improve the yield and quality of crops.

Description

Technical Field

[0001] The present invention relates to the technical field of fertilizer additives, and particularly relates to a synergistic fertilizer containing glycoside substances and a preparation process thereof. Technical Background

[0002] With the development of agriculture, the requirements for fertilizers are getting higher and higher. There are many problems with traditional fertilizers, such as low fertilizer efficiency, easy loss, and great damage to the soil environment. Although functional water-soluble fertilizers can improve these problems to a certain extent, the current water-soluble fertilizers still have defects such as low stability, easy decomposition of active ingredients, and short-lasting effects. For example, in the prior art, the components of fertilizers are easily hydrolyzed in the soil environment, resulting in reduced fertilizer efficiency; in the rainy season, fertilizers are washed away by rainwater, causing waste and crop yield reduction; the active ingredients of fertilizers are easily inactivated, and cannot promote plant growth and regulate the soil environment for a long time. Summary of the Invention

[0003] The purpose of the present invention is to provide a synergistic fertilizer containing glycoside substances and a preparation process thereof, so as to overcome the problems that the glycosides of plant extracts have poor compatibility with conventional fertilizer components, are easily inactivated, and it is difficult to accurately control the release rhythm to match different growth stages of plants.

[0004] To achieve these and other advantages according to the present invention, a synergistic fertilizer containing glycoside substances is provided, which comprises the following raw materials in parts by weight:

[0005] 5 - 40 parts of plant extract glycoside, 1 - 5 parts of microbial inoculum, 10 - 40 parts of urea, 1 - 30 parts of diammonium phosphate, and 1 - 25 parts of potassium sulfate.

[0006] Preferably, the plant biomass glycoside is extracted by the following steps: drying Rehmannia glutinosa, Plantago asiatica or Gentiana scabra, etc., crushing them into powder with a wall breaker, and then ultrasonically soaking in a 75% ethanol solution for 1 h. After ultrasonic soaking, heat reflux extraction is carried out twice at 80 °C, the leaching solution is filtered, ethanol is recovered under reduced pressure, and a plant extraction aqueous solution is obtained. The aqueous solution is added to a macroporous resin column pretreated with ethanol, and eluted with ethanol solutions of different concentration gradients, and the ethanol eluate is collected and concentrated to obtain a glycoside concentrate.

[0007] Preferably, the mass ratio of the raw material to ethanol is 2:3 - 5, and the macroporous resin is one of D101 type, HPD100 type, and HP20 type.

[0008] Preferably, the macroporous resin is successively washed with deionized water and 30% ethanol solution to remove impurities in the pores, and stored in 75% ethanol.

[0009] The present invention also provides a preparation process of a synergistic fertilizer containing glycoside substances, which uses the above raw materials and comprises the following steps:

[0010] 1) Raw material pretreatment: Prepare the concentrated liquid of plant extract glycosides into a uniform liquid, crush and sieve nitrogen, phosphorus and potassium fertilizers to ensure uniform particle size, and activate and propagate the microbial inoculum in advance.

[0011] 2) Mixing and granulation: Put the pretreated components into a horizontal stirring mixer, stir at a low speed for 10 min first to preliminarily mix the materials; then gradually increase the stirring speed, spray an appropriate amount of binder solution during this period, and then transfer the materials into a disk granulator for granulation, controlling the particle size of the particles to be 2 - 5 mm.

[0012] 3) Post - treatment: Send the granulated fertilizer into a dryer, dry it until the water content is less than 10%, and then through cooling and screening, remove unqualified large particles and fine powder to obtain the synergistic fertilizer containing glycoside substances.

[0013] The present invention has at least the following beneficial effects:

[0014] The present invention extracts and separates water - soluble glycoside substances from plants as high - efficiency biological stimulants, which have good compatibility with crops, high physiological activity, can be better absorbed and utilized by plants, and are combined with nitrogen, phosphorus and potassium basic fertilizers, corrosion inhibitors and microbial inoculants to ensure the basic nutrient requirements of plants, extend the fertilizer efficiency and improve the soil micro - ecology, help plants absorb nutrients and active ingredients, promote the growth and development of crops, enhance the stress resistance and disease resistance of crops, increase the yield of agricultural crops and increase the income of farmers.

[0015] Other advantages, objectives and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present invention. Detailed implementation mode

[0016] The following further detailed description of the present invention is provided so that those skilled in the art can implement it with reference to the text of the specification.

[0017] Terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or their combinations.

[0018] Example 1

[0019] A synergistic fertilizer containing glycoside substances, which comprises the following raw materials in parts by weight:

[0020] 5 parts of plant extract glycoside, 1 part of microbial inoculant, 6 parts of corrosion inhibitor, 40 parts of urea, 24 parts of diammonium phosphate, and 24 parts of potassium sulfate; among them, the plant extract glycoside is prepared by the following steps: drying Rehmannia glutinosa, Plantago asiatica or Gentiana scabra, etc., crushing them into powder with a wall breaker, and then ultrasonically soaking in 75% ethanol solution for 1 h, controlling the mass ratio of raw material to ethanol to be 2:3. After ultrasonic soaking, heat reflux extraction is carried out twice at 80 °C, the leaching solution is filtered, and ethanol is recovered under reduced pressure to obtain an aqueous plant extraction solution. The aqueous solution is added to a macroporous resin column pretreated with ethanol, and eluted with ethanol solutions with concentration gradients of 30%, 50%, and 85%, and the ethanol eluate is collected and concentrated to obtain a glycoside concentrate.

[0021] It is prepared by the following process:

[0022] Using the above raw material weight components, the steps are as follows:

[0023] 1) Raw material pretreatment: Prepare the plant extract glycoside concentrate into a uniform liquid, crush and sieve the nitrogen, phosphorus and potassium fertilizers to ensure uniform particle size, and activate and expand the microbial inoculant in advance.

[0024] 2) Mixing and granulation: Put the pretreated components into a horizontal stirring mixer, stir at low speed for 10 min first to make the materials preliminarily mixed; then gradually increase the stirring speed to 15 min, spray an appropriate amount of binder solution during this period, and then transfer the materials to a disk granulator for granulation, controlling the particle size to be 2-5 mm.

[0025] 3) Post-treatment: Feed the granulated fertilizer particles into a dryer, dry until the water content is less than 10%, and then cool and screen to remove unqualified large particles and fine powder to obtain the synergistic fertilizer containing glycoside substances.

[0026] Example 2

[0027] 10 parts of plant extract glycoside, 4 parts of microbial inoculant, 10 parts of corrosion inhibitor, 40 parts of urea, 19 parts of diammonium phosphate, and 17 parts of potassium sulfate; among them, the plant extract glycoside is prepared by the following steps: drying Rehmannia glutinosa, Plantago asiatica or Gentiana scabra, etc., crushing them into powder with a wall breaker, and then ultrasonically soaking in 75% ethanol solution for 1 h, controlling the mass ratio of raw material to ethanol to be 2:3. After ultrasonic soaking, heat reflux extraction is carried out twice at 80 °C, the leaching solution is filtered, and ethanol is recovered under reduced pressure to obtain an aqueous plant extraction solution. The aqueous solution is added to a macroporous resin column pretreated with ethanol, and eluted with ethanol solutions with concentration gradients of 35%, 50%, and 70%, and the ethanol eluate is collected and concentrated to obtain a glycoside concentrate.

[0028] It is prepared by the following process:

[0029] Using the above raw material weight components, the steps are as follows:

[0030] 1) Raw material pretreatment: Prepare the plant extract glycoside concentrate into a uniform liquid, crush and sieve the nitrogen, phosphorus and potassium fertilizers to ensure uniform particle size, and activate and propagate the microbial inoculant in advance.

[0031] 2) Mixing and granulation: Put the pretreated components into a horizontal stirring mixer, stir at low speed for 10 min first to preliminarily mix the materials; then gradually increase the stirring speed to stir for 20 min, spray an appropriate amount of binder solution during this period, and then transfer the materials to a disk granulator for granulation, controlling the particle size of the granules to be 2 - 5 mm.

[0032] 3) Post - treatment: Send the granulated fertilizer particles into a dryer, dry until the water content is less than 10%, and then through cooling and screening, remove unqualified large particles and fine powder to obtain the synergistic fertilizer containing glycoside substances.

[0033] Example 3

[0034] 15 parts of plant extract glycoside, 5 parts of microbial inoculant, 5 parts of corrosion inhibitor, 40 parts of urea, 25 parts of diammonium phosphate, 10 parts of potassium sulfate; among them, the plant extract glycoside is prepared through the following steps: Dry Rehmannia glutinosa, Plantago asiatica or Gentiana scabra, etc., crush them into powder with a wall - breaker, and then ultrasonically soak them in 75% ethanol solution for 1 h, controlling the mass ratio of raw material to ethanol to be 2:5. After ultrasonic soaking, heat - reflux extract twice at 80 °C, filter the leaching solution, recover ethanol under reduced pressure to obtain an aqueous plant extract solution. Add the aqueous solution to a macroporous resin column pretreated with ethanol, elute with ethanol solutions with concentration gradients of 30%, 50%, and 85%, collect and concentrate the ethanol eluate to obtain the glycoside concentrate.

[0035] It is prepared through the following process:

[0036] Using the above - mentioned raw material weight components, the steps are as follows:

[0037] 1) Raw material pretreatment: Prepare the plant extract glycoside concentrate into a uniform liquid, crush and sieve the nitrogen, phosphorus and potassium fertilizers to ensure uniform particle size, and activate and propagate the microbial inoculant in advance.

[0038] 2) Mixing and granulation: Put the pretreated components into a horizontal stirring mixer, stir at low speed for 10 min first to preliminarily mix the materials; then gradually increase the stirring speed to stir for 15 min, spray an appropriate amount of binder solution during this period, and then transfer the materials to a disk granulator for granulation, controlling the particle size of the granules to be 2 - 5 mm.

[0039] 3) Post - treatment: Send the granulated fertilizer particles into a dryer, dry until the water content is less than 10%, and then through cooling and screening, remove unqualified large particles and fine powder to obtain the synergistic fertilizer containing glycoside substances.

[0040] Example 4

[0041] 20 parts of plant extract glycoside, 5 parts of microbial inoculant, 10 parts of corrosion inhibitor, 35 parts of urea, 15 parts of diammonium phosphate, and 15 parts of potassium sulfate; among them, the plant extract glycoside is prepared by the following steps: drying Rehmannia glutinosa, Plantago asiatica or Gentiana scabra, etc., crushing them into powder with a wall breaker, and then ultrasonically soaking in 75% ethanol solution for 1 h, controlling the mass ratio of raw material to ethanol to be 2:3. After ultrasonic soaking, heat reflux extraction is carried out twice at 80 °C, the leaching solution is filtered, and ethanol is recovered under reduced pressure to obtain an aqueous plant extraction solution. The aqueous solution is added to a macroporous resin column pretreated with ethanol, and eluted with ethanol solutions with concentration gradients of 30%, 45%, and 80%, and the ethanol eluate is collected and concentrated to obtain a glycoside concentrate.

[0042] It is prepared by the following process:

[0043] Using the above raw material weight components, the steps are as follows:

[0044] 1) Raw material pretreatment: Prepare the plant extract glycoside concentrate into a uniform liquid, crush and sieve the nitrogen, phosphorus and potassium fertilizers to ensure uniform particle size, and activate and multiply the microbial inoculant in advance.

[0045] 2) Mixing and granulation: Put the pretreated components into a horizontal stirring mixer, stir at low speed for 10 min first to make the materials preliminarily mixed; then gradually increase the stirring speed to 15 min, spray an appropriate amount of binder solution during this period, and then transfer the materials to a disk granulator for granulation, controlling the particle size to be 2-5 mm.

[0046] 3) Post-treatment: Send the granulated fertilizer particles into a dryer, dry until the water content is lower than 10%, and then cool and screen to remove unqualified large particles and fine powder to obtain the synergistic fertilizer containing glycoside substances.

[0047] Comparative Example 1

[0048] It is prepared by the following process:

[0049] 1) Raw material pretreatment: 5 parts of microbial inoculant, 5 parts of corrosion inhibitor, 40 parts of urea, 25 parts of diammonium phosphate, and 25 parts of potassium sulfate; crush and sieve the nitrogen, phosphorus and potassium fertilizers to ensure uniform particle size, and activate and multiply the microbial inoculant in advance.

[0050] 2) Mixing and granulation: Put the pretreated components into a horizontal stirring mixer, stir at low speed for 10 min first to make the materials preliminarily mixed; then gradually increase the stirring speed to 20 min, spray an appropriate amount of binder solution during this period, and then transfer the materials to a disk granulator for granulation, controlling the particle size to be 2-5 mm.

[0051] 3) Post-treatment: Send the granulated fertilizer particles into a dryer, dry until the water content is lower than 10%, and then cool and screen to remove unqualified large particles and fine powder to obtain the synergistic fertilizer containing glycoside substances.

[0052] Test example

[0053] Test treatment: Five planting areas were demarcated in the test area, numbered 1-5. The area of each planting area was 100 m 2 , and the areas were separated by 1 m-wide ridges. Wheat (Xinong 511) was planted in the five planting areas using conventional planting methods. The fertilization method was to evenly spread the fertilizer on the field surface during sowing and then deeply plow it into the soil. The fertilization amount was determined according to the local farmers' customary amount. Among them, the planting areas numbered 1-4 were respectively applied with the synergistic fertilizers containing glycoside substances in Examples 1-4, and the planting area numbered 5 was applied with a conventional fertilizer without glycoside substances in the comparative example; then, it was managed using a conventional wheat management mode until the wheat matured.

[0054] After the wheat matured, the yield and protein content of wheat in each planting area were counted, and the results are shown in Table 1.

[0055] Table 1 Wheat yield and protein content

[0056] Number Yield (kg / mu) Protein content (%) 1 558.31 19.12 2 564.28 19.79 3 570.59 20.53 4 576.25 21.61 5 532.31 16.3

[0057] As can be seen from Table 1, after using the synergistic fertilizer in the present invention, the yield of wheat has been significantly improved, the protein content has also increased, and the effect of increasing production and income is obvious.

[0058] Although the specific implementation mode of the present invention has been described in detail in combination with the embodiments, it should not be construed as a limitation on the protection scope of this patent. Within the scope described in the claims, various modifications and deformations that can be made by those skilled in the art without creative labor still fall within the protection scope of this patent.

Claims

1. A synergistic fertilizer containing glycosides, characterized in that: The composition comprises the following raw materials in parts by weight: 5-40 parts of plant extract glycosides, 1-5 parts of microbial agents, 10-40 parts of urea, 1-30 parts of diammonium phosphate and 1-25 parts of potassium sulfate.

2. The synergistic fertilizer containing glycosides according to claim 1, characterized in that: The plant biomass glycosides are extracted by the following steps: drying Rehmannia root, Plantago asiatica or Gentiana scabra, crushing them into powder with a wall breaker, and then ultrasonically soaking them in a 75% ethanol solution for 1 hour. After ultrasonic soaking, hot reflux extraction is performed twice at 80°C, the extract is filtered, and ethanol is recovered under reduced pressure to obtain a plant extract aqueous solution. The aqueous solution is added to a macroporous resin column pretreated with ethanol, eluted with ethanol solutions of different concentration gradients, and the ethanol eluate is collected and concentrated to obtain a glycoside concentrate.

3. The synergistic fertilizer containing glycosides according to claim 1, characterized in that During the ultrasonic immersion process, the mass ratio of the raw material to the ethanol is 2:3-5.

4. The synergistic fertilizer containing glycosides according to claim 1, characterized in that The macroporous resins used are D101, HPD100 and HP20.

5. A process for preparing a synergistic fertilizer containing glycosides, characterized in that: The method uses the raw material as claimed in claim 1, and comprises the following steps: 1) Raw material pretreatment: Prepare the plant extract glycoside concentrate into a uniform liquid, crush and sieve the nitrogen, phosphorus and potassium fertilizers to ensure uniform particle size, and activate and expand the microbial agents in advance. 2) Mixing and granulation: put the pretreated ingredients into a horizontal stirring mixer, stir at a low speed for 10 minutes to make the materials initially mixed; then gradually speed up the stirring, spray an appropriate amount of binder solution during the process, and then transfer the materials to a disc granulator for granulation, controlling the particle size to 2-5mm. 3) Post-processing: the fertilizer pellets after granulation are sent to a dryer, dried until the moisture content is less than 10%, and then cooled and screened to remove unqualified large particles and fine powder to obtain the synergistic fertilizer containing the glycoside substance.