CN112680230A - Soil conditioner for nursery stock planting and use method thereof - Google Patents
Soil conditioner for nursery stock planting and use method thereof Download PDFInfo
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- CN112680230A CN112680230A CN202110092061.5A CN202110092061A CN112680230A CN 112680230 A CN112680230 A CN 112680230A CN 202110092061 A CN202110092061 A CN 202110092061A CN 112680230 A CN112680230 A CN 112680230A
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Abstract
The application relates to the technical field of soil improvement, and particularly discloses a soil conditioner for nursery stock planting and a using method thereof. The soil conditioner for nursery stock planting comprises the following raw materials: sucrose solution, super absorbent resin and clear water. The using method comprises the following steps: mixing soil at the place where the nursery stock grows with a sucrose solution in proportion to form slurry; digging out the root system of the seedling completely, wrapping the root system of the seedling with slurry, and then planting the seedling wrapped with the slurry back to the original position; burying saturated super absorbent resin at the root of the nursery stock, digging a soil ball, binding the soil ball with a straw rope, pouring the soil ball with clear water, and loading the soil ball and the nursery stock for transportation; burying soil balls after transporting to a destination, uniformly spraying the nutrient on the soil at the root of the nursery stock, and then pouring clear water on the root of the nursery stock. The soil conditioner for seedling planting and the using method thereof can be used for improving soil in a seedling transplanting process, and have the advantages of adjusting seedling activity and continuously supplying water.
Description
Technical Field
The application relates to the technical field of soil improvement, in particular to a soil improvement agent for nursery stock planting and a using method thereof.
Background
The nursery stock as plant has its natural growth rule. In view of the effects of greening, oxygen production and air purification of the nursery stocks and the great advocation of building green cities in China, the market demand of China on the nursery stocks is huge. At present, nursery stocks are generally cultivated and grown in nursery gardens, then sold and transported to all parts of the country, and in the transplanting and transporting process of the nursery stocks, the roots of the nursery stocks are generally protected by soil balls tied by grass ropes, and the nursery stocks are transported to destinations and then planted so as to complete the overall migration of the nursery stocks.
With respect to the related art in the above, the inventors consider that there are disadvantages in that: in the transplanting process of the nursery stock, the roots still need to absorb water and nutrients, branches and leaves can continuously exert transpiration, however, the water in the soil balls can gradually volatilize along with the lapse of transportation time, the water loss of the soil balls can lead the nursery stock to lose water and wither, and the nursery stock is not favorable for survival after the nursery stock is transplanted.
Disclosure of Invention
In order to effectively solve the problem that the seedlings need to be watered for multiple times in the transportation process, the application provides a soil conditioner for seedling planting and a using method thereof.
In a first aspect, the application provides a soil conditioner for seedling planting, which adopts the following technical scheme:
a soil conditioner for nursery stock planting comprises the following raw materials in parts by weight: 400 portions of sucrose solution, 375 portions of super absorbent resin and 175000 portions of clean water and 350000 portions; the concentration range of the sucrose solution is 55-64%.
By adopting the technical scheme, the added sucrose solution can effectively inhibit the growth of the root system of the nursery stock, the requirement of the nursery stock on nutrient substances and water is reduced under the low-activity state, at the moment, the absorbed water is slowly released by the added super absorbent resin when the soil has little water, so that the soil ball is continuously kept moist, the inhibition effect of the sucrose solution on the root system and the water-retaining capacity of the super absorbent resin on the soil ball are added, so that the nursery stock cannot lose water and wither in the transportation process, the problem of water shortage of the soil ball in the nursery stock transportation process is effectively solved, and after the nursery stock is transplanted to a destination, the concentration of the sucrose solution of the root system of the nursery stock can be reduced by the added clear water, so that the inhibition effect of the sucrose solution on the root of the nursery stock is eliminated, and;
in addition, the super absorbent resin can adsorb nutrient ions in soil, such as N, P, K ions, and the ions can be released along with water and continuously supplied to plant root systems for absorption, so that the distribution of nutrient substances in the soil can be effectively balanced, the root systems can be continuously supplied with nutrients, and the characteristics of water absorption expansion and water loss reduction of the super absorbent resin are added, so that a large number of pores can be formed between the super absorbent resin and the soil, and the air permeability of the soil is improved.
Preferably, the preparation method of the super absorbent resin comprises the following steps:
step 1 a: dissolving 8-12 parts of LiCl in 92-100 parts of NMP solvent to prepare LiCl/NMP solution, adding 0.5-1 part of cotton cellulose into the prepared LiCl/NMP solution to dissolve to obtain a first dissolved substance, and stirring at room temperature for 2d-4 d;
step 2 a: stirring the first dissolved substance, adding 1.19-2.32 parts of DMAP (dimethyl formamide) to dissolve the DMAP to obtain a second dissolved substance, adding 18.6-21.5 parts of succinic anhydride to the second dissolved substance, and stirring at room temperature for 24-36 hours to obtain a third dissolved substance;
step 3 a: pouring the third dissolved substance into 790 and 1185 parts of methanol, and neutralizing with 74.2-82.6 parts of 10% (Wt) NaOH solution to obtain a fourth dissolved substance;
step 4 a: and filtering the fourth dissolved substance, drying under reduced pressure, and crushing to obtain the super absorbent resin.
By adopting the technical scheme, the prepared super absorbent resin has good water absorption rate, is different from common super absorbent resin, has degradability, can effectively reduce the influence of the super absorbent resin on the environment, and increases the porosity among soil particles after the super absorbent resin is degraded, thereby effectively improving the air permeability of the soil.
Preferably, the particle size of the super absorbent resin is in the range of 0.9 to 1.2 mm.
By adopting the technical scheme, the water absorption capacity of the high-water-content resin in the adopted particle size range is better, and the water retention capacity of the soil can be effectively improved.
Preferably, the preparation method of the cotton cellulose comprises the following steps:
step 1 b: and (3) shearing 20-30 parts of absorbent cotton, grinding, drying and crushing to obtain absorbent cotton powder.
And step 2 b: and (2) adding 5-10 parts of the absorbent cotton powder into 136 parts of 113-136 parts of 15% (Wt) NaOH solution, soaking for 1-2h, performing ultrasonic treatment for 0.5-1h, heating and stirring for 24-30h, and filtering to obtain the crude cotton cellulose.
And step 3 b: washing the crude cotton cellulose with deionized water until washing liquor is colorless and neutral, then adding 10% (Wt) hydrogen peroxide solution for decoloring and purifying, then washing with ethanol, adjusting the pH value of the solution to 4.5-5.0, then carrying out ultrasonic treatment for 0.5-1h, then keeping the constant temperature at 60 ℃, stirring and reacting for 1-2h, cooling to room temperature, filtering, finally adding 45-55mL methanol solution, refluxing, stirring and heating for 0.5-1h, filtering, and discarding filtrate to obtain filter residue.
And 4 b: washing the filter residue with deionized water until the filter residue is colorless and neutral, filtering, eluting with 60% (Wt) ethanol to remove residual esters and water, washing with acetone, filtering, and drying at 60 ℃ to obtain the cotton cellulose.
By adopting the technical scheme, the cellulose purity of the obtained cotton cellulose is higher, the esterification modification degree between the cotton cellulose and succinic anhydride can be effectively improved, the formation of a net structure in the super absorbent resin is facilitated, and the preparation yield of the super absorbent resin in the preparation of the super absorbent resin can be effectively improved.
Preferably, the soil conditioner for planting the nursery stock also comprises 1000 parts of a nutrient 800-.
By adopting the technical scheme, the requirements on nutrients and water at the early stage of the restoration of the growth vigor of the root of the seedling are obviously improved after the concentration of the sucrose solution is reduced, and at the moment, sufficient wettability and nutrients can be provided for the seedling by adding the nutrient and the clear water, so that the survival of the seedling after the transplanting is facilitated.
Preferably, the nutrient is ammonium humate, and the preparation method of the ammonium humate comprises the following steps:
step 1 c: mixing ammonium bicarbonate and weathered coal according to the proportion of 1: (3-4) mixing the components in a weight ratio to obtain a mixture;
and step 2 c: stirring the mixture for 1-2h at the temperature of 20-30 ℃, wherein the stirring speed is 30-40 r/min;
and step 3 c: rolling the mixture under a rolling pressure of 1.6-2kg/cm2Obtaining the ammonium humate.
Through adopting foretell technical scheme, the ammonium humate of chooseing for use has the effect that improves the nitrogenous fertilizer utilization ratio, synergistic phosphorus fertilizer and synergistic potash fertilizer, and the ammonium humate can form the jellies of flocculent sediment with the calcium ion interact in the soil, thereby promote the caking power of soil, and increase the soil space, improve soil water conservation fertilizer-keeping ability, the solubility of the ammonium humate of use is high, and contains multiple active ingredient, compare in the ammonium humate of ordinary method preparation, has stronger cation exchange capacity, buffer capacity, adsorption affinity and catalytic capability, thereby can effectively improve the physiological activity of soil.
Preferably, the humic acid content in the weathered coal is 50-60% by weight.
By adopting the technical scheme, the prepared ammonium humate contains more active ingredients and has high solubility, and the capability of the nutrient for providing nutrients for the seedlings can be effectively improved.
In a second aspect, the application method of the soil conditioner for seedling planting provided by the application adopts the following technical scheme:
a use method of a soil conditioner for nursery stock planting comprises the following steps:
step 1 d: mixing soil at the place where the nursery stock grows with a sucrose solution according to the proportion of 1 (0.5-0.8) to form slurry;
step 2 d: digging out the root system of the seedling completely, wrapping the root system of the seedling with slurry, and then planting the seedling wrapped with the slurry back to the original position;
and step 3 d: mixing the super absorbent resin with 14.2-15.6% (Wt) of clear water to obtain saturated super absorbent resin, burying the saturated super absorbent resin at the root of the nursery stock, then digging a soil ball 8-12 times of the breast diameter of the nursery stock, binding the soil ball with a straw rope, then pouring the soil ball with 25.9-28.6% (Wt) of clear water, loading the soil ball and the nursery stock on a truck, and then starting to transport;
and 4 d: burying soil balls after transporting to a destination, uniformly spraying the nutrient on the soil at the root of the nursery stock, and then pouring 57.6-59.9% (Wt) of clear water on the root of the nursery stock.
By adopting the technical scheme, the sucrose solution can accurately inhibit the seedling roots, the requirements of the seedlings on nutrients and water are reduced, meanwhile, the super absorbent resin is buried in the soil ball and transported together with the nursery stock, so that the water retention capacity and the water supply capacity of the soil ball in which the nursery stock is located can be effectively improved, thereby effectively solving the problem that the seedling withers due to water loss of the soil ball, the seedling can better survive in the soil ball under the low activity state without influencing the activity of the root of the seedling, the seedling and the soil ball are continuously buried in the soil of the destination after the seedling reaches the destination, can make the nursery stock better adapt to local soil environment, and the addition of a proper amount of clear water and nutrient in the soil at the root of the nursery stock can not only reduce the concentration of sucrose solution at the root of the nursery stock and make the root of the nursery stock restore activity, and sufficient water and nutrients can be provided for the subsequent growth and development of the nursery stock, so that the survival of the nursery stock after transplantation can be effectively ensured.
Preferably, in step 3d, the saturated super absorbent resin is uniformly buried in the soil with the depth of 10-15cm around the root of the seedling.
By adopting the technical scheme, the super absorbent resin provides moisture for the soil in the shallow soil with high dehydration speed, so that the water retention capacity of the soil can be improved, and the moisture volatilization efficiency of the soil below the surface soil can be effectively reduced.
In summary, the present application has the following beneficial effects:
1. the preferred sucrose solution and the super absorbent resin who adopts in this application, can make the nursery stock keep low active state in the transportation, reduce the demand to moisture and nutrient composition, and simultaneously, guarantee that nursery stock place soil ball has stronger water retention ability and water supply ability, effectively solve soil ball water shortage and make the nursery stock wither lead to transplanting the problem of failure, and reduce the sucrose solution concentration of nursery stock root through adding the clear water after the nursery stock is transplanted and can make nursery stock root growth recovery activity, thereby effectively guarantee the normal growth development after the nursery stock is transplanted, in addition, super absorbent resin degradable and degradation speed are fast, have green's advantage.
2. Preferentially adopt's nutritional agent in this application, can not only satisfy and promote the demand to nutrient substance after the seedling root system restores activity, the humic acid ammonium nutritional agent who chooses for use can also improve the nitrogen fertilizer utilization ratio moreover, has the effect of efficiency-increasing phosphorus potassium fertilizer, the humic acid ammonium's of use solubility is high, and contains multiple active ingredient, compare in the humic acid ammonium in the traditional meaning, have stronger cation exchange capacity, buffer capacity, adsorption affinity and catalytic capacity to can effectively improve the physiological activity of soil.
3. The preparation method can not only enable the soil conditioner for the nursery stock to fully exert the inhibiting effect of the soil conditioner at the root of the nursery stock, but also improve the water retaining capacity and water supply capacity of the soil ball, thereby effectively solving the problem that the nursery stock loses water and withers due to the fact that the nursery stock is in high demand for nutrient and water due to water shortage of the soil ball nursery stock.
Detailed Description
The present application will be described in further detail below with reference to preparation examples, comparative examples, and application examples.
The raw materials of the application are all commercially available, wherein:
the absorbent cotton is purchased in a Tornado dormitory faced Longfloss powder processing factory in a winter pavilion area of the Weifang city;
weathered coal was purchased from mare shengyangyou biotechnology development limited;
lignite was purchased from Penghui trade, Inc.
Preparation example
Preparing cotton cellulose:
preparation example 1
The preparation method of the cotton cellulose comprises the following steps:
step 1 b: and (3) shearing 20g of absorbent cotton, grinding, drying and crushing to obtain absorbent cotton powder.
And step 2 b: adding 5g of absorbent cotton powder into 113g of 15% (Wt) NaOH solution, soaking for 1h, performing ultrasonic treatment for 0.5h, heating and stirring for 24h, and filtering to obtain crude cotton cellulose.
And step 3 b: washing the crude cotton cellulose with deionized water until washing liquor is colorless and neutral, then adding 10% (Wt) hydrogen peroxide solution for decoloring and purifying, then washing with ethanol, adjusting the pH value of the solution to 4.5, performing ultrasonic treatment for 0.5h, then keeping the constant temperature at 60 ℃, stirring for reaction for 1h, cooling to room temperature, filtering, finally adding 45mL methanol solution, refluxing, stirring and heating for 0.5h, and filtering and discarding filtrate to obtain filter residue.
And 4 b: washing the filter residue with deionized water until the filter residue is colorless and neutral, filtering, eluting with 60% (Wt) ethanol to remove residual esters and water, washing with acetone, filtering, and drying at 60 deg.C to obtain cotton cellulose.
Preparation example 2
The preparation method of the cotton cellulose comprises the following steps:
step 1 b: 30 parts of absorbent cotton are cut into pieces, ground, dried and crushed to obtain absorbent cotton powder.
And step 2 b: 10 parts of absorbent cotton powder is added into 136g of 15 percent (Wt) NaOH solution to be soaked for 2h, ultrasonic treatment is carried out for 1h, heating and stirring are carried out for 30h, and filtration is carried out to obtain crude cotton cellulose.
And step 3 b: washing the crude cotton cellulose with deionized water until washing liquor is colorless and neutral, then adding 10% (Wt) hydrogen peroxide solution for decoloring and purifying, then washing with ethanol, adjusting the pH value of the solution to 5.0, performing ultrasonic treatment for 1h, then keeping the constant temperature at 60 ℃, stirring for reacting for 2h, cooling to room temperature, filtering, finally adding 55mL methanol solution, refluxing, stirring and heating for 1h, and filtering to remove filtrate to obtain filter residue.
And 4 b: washing the filter residue with deionized water until the filter residue is colorless and neutral, filtering, eluting with 60% (Wt) ethanol to remove residual esters and water, washing with acetone, filtering, and drying at 60 deg.C to obtain cotton cellulose.
Preparation of super absorbent resin:
preparation example 1
The preparation method of the super absorbent resin comprises the following steps:
step 1 a: dissolving LiCl 8g in NMP solvent 92g to prepare LiCl/NMP solution, adding 0.5g of the cotton cellulose prepared in cotton cellulose preparation example 1 into the prepared LiCl/NMP solution to dissolve to obtain a first dissolved substance, and stirring at room temperature for 2 d;
step 2 a: stirring the first dissolved substance, adding 1.19g of DMAP (dimethyl formamide) to dissolve the DMAP to obtain a second dissolved substance, adding 18.6g of succinic anhydride to the second dissolved substance, and stirring at room temperature for 24 hours to obtain a third dissolved substance;
step 3 a: pouring the third dissolved substance into 790g of methanol, and neutralizing with 74.2g of 10% (Wt) NaOH solution to obtain a fourth dissolved substance;
step 4 a: and filtering the fourth dissolved substance, drying under reduced pressure, and crushing to obtain the super absorbent resin.
Preparation example 2
The preparation method of the super absorbent resin comprises the following steps:
step 1 a: dissolving 12g of LiCl in 100g of NMP solvent to prepare a LiCl/NMP solution, adding 1g of the cotton cellulose prepared in the cotton cellulose preparation example 2 into the prepared LiCl/NMP solution to dissolve the cotton cellulose to obtain a first dissolved substance, and stirring the first dissolved substance at room temperature for 4 days;
step 2 a: stirring the first dissolved substance, adding 2.32g of DMAP, dissolving the DMAP to obtain a second dissolved substance, adding 21.5g of succinic anhydride into the second dissolved substance, and stirring at room temperature for 36 hours to obtain a third dissolved substance;
step 3 a: pouring the third dissolved substance into 1185g of methanol, and neutralizing with 82.6g of 10% (Wt) NaOH solution to obtain a fourth dissolved substance;
step 4 a: and filtering the fourth dissolved substance, drying under reduced pressure, and crushing to obtain the super absorbent resin.
Preparation example 3
The preparation method of the super absorbent resin comprises the following steps:
step 1 a: dissolving 12g of LiCl in 100g of NMP solvent to prepare a LiCl/NMP solution, adding 1g of the cotton cellulose prepared in the cotton cellulose preparation example 2 into the prepared LiCl/NMP solution to dissolve the cotton cellulose to obtain a first dissolved substance, and stirring the first dissolved substance at room temperature for 4 days;
step 2 a: stirring the first dissolved substance, adding 2.32g of DMAP, dissolving the DMAP to obtain a second dissolved substance, adding 21.5g of succinic anhydride into the second dissolved substance, and stirring at room temperature for 36 hours to obtain a third dissolved substance;
step 3 a: pouring the third dissolved substance into 1185g of methanol, and neutralizing with 82.6g of 10% (Wt) NaOH solution to obtain a fourth dissolved substance;
step 4 a: filtering the fourth dissolved substance, drying under reduced pressure, and then crushing to obtain super absorbent resin; the particle size of the super absorbent resin is 0.5-0.9 mm.
Preparation example 4
The preparation method of the super absorbent resin comprises the following steps:
step 1 a: dissolving 12g of LiCl in 100g of NMP solvent to prepare a LiCl/NMP solution, adding 1g of the cotton cellulose prepared in the cotton cellulose preparation example 2 into the prepared LiCl/NMP solution to dissolve the cotton cellulose to obtain a first dissolved substance, and stirring the first dissolved substance at room temperature for 4 days;
step 2 a: stirring the first dissolved substance, adding 2.32g of DMAP, dissolving the DMAP to obtain a second dissolved substance, adding 21.5g of succinic anhydride into the second dissolved substance, and stirring at room temperature for 36 hours to obtain a third dissolved substance;
step 3 a: pouring the third dissolved substance into 1185g of methanol, and neutralizing with 82.6g of 10% (Wt) NaOH solution to obtain a fourth dissolved substance;
step 4 a: filtering the fourth dissolved substance, drying under reduced pressure, and then crushing to obtain super absorbent resin; the particle size range of the super absorbent resin is 0.9-1.2 mm.
Preparation example 5
The preparation method of the super absorbent resin comprises the following steps:
step 1 a: dissolving 12g of LiCl in 100g of NMP solvent to prepare a LiCl/NMP solution, adding 1g of the cotton cellulose prepared in the cotton cellulose preparation example 2 into the prepared LiCl/NMP solution to dissolve the cotton cellulose to obtain a first dissolved substance, and stirring the first dissolved substance at room temperature for 4 days;
step 2 a: stirring the first dissolved substance, adding 2.32g of DMAP, dissolving the DMAP to obtain a second dissolved substance, adding 21.5g of succinic anhydride into the second dissolved substance, and stirring at room temperature for 36 hours to obtain a third dissolved substance;
step 3 a: pouring the third dissolved substance into 1185g of methanol, and neutralizing with 82.6g of 10% (Wt) NaOH solution to obtain a fourth dissolved substance;
step 4 a: filtering the fourth dissolved substance, drying under reduced pressure, and then crushing to obtain super absorbent resin; the particle size range of the super absorbent resin is 1.2-1.5 mm.
Preparation of ammonium humate:
preparation example 1
The preparation method of ammonium humate comprises the following steps:
step 1 c: mixing ammonium bicarbonate and weathered coal according to the proportion of 1: 3, mixing the components in a weight ratio to obtain a mixture;
and step 2 c: stirring the mixture for 1h at 20 ℃, wherein the stirring speed is 30 r/min;
and step 3 c: the mixture was rolled under a rolling pressure of 1.6kg/cm2Obtaining the humic acid ammonium.
Preparation example 2
The preparation method of ammonium humate comprises the following steps:
step 1 c: mixing ammonium bicarbonate and weathered coal according to the proportion of 1: 4, mixing the components in a weight ratio to obtain a mixture;
and step 2 c: stirring the mixture for 2h at the temperature of 30 ℃, wherein the stirring speed is 40 r/min;
and step 3 c: the mixture was rolled under a rolling pressure of 2kg/cm2Obtaining the humic acid ammonium.
Examples
Example 1
The soil conditioner for nursery stock planting comprises the following raw materials by weight: 200g of 55% (Wt) sucrose solution, 250g of super absorbent resin prepared in preparation example 1 of super absorbent resin, and 175000g of clear water.
Example 2
The soil conditioner for nursery stock planting comprises the following raw materials by weight: 300g of 60% (Wt) sucrose solution, 310g of super absorbent resin prepared in preparation example 2 of super absorbent resin, and 280000g of clean water.
Example 3
The soil conditioner for nursery stock planting comprises the following raw materials by weight: 400g of 64% (Wt) sucrose solution, 375g of super absorbent resin prepared in preparation example 3 of super absorbent resin, and 350000g of clear water.
Example 4
The soil conditioner for nursery stock planting comprises the following raw materials by weight: 400g of 64% (Wt) sucrose solution, 375g of super absorbent resin prepared in preparation example 4 of super absorbent resin, and 350000g of clear water.
Example 5
The soil conditioner for nursery stock planting comprises the following raw materials by weight: 400g of 64% (Wt) sucrose solution, 375g of super absorbent resin prepared in preparation example 5 of super absorbent resin, and 350000g of clear water.
Example 6
The soil conditioner for nursery stock planting comprises the following raw materials by weight: 400g of 64% (Wt) sucrose solution, 375g of super absorbent resin prepared in super absorbent resin preparation example 4, 350000g of clear water, and 800g of ammonium humate prepared in ammonium humate preparation example 1.
Example 7
The soil conditioner for nursery stock planting comprises the following raw materials by weight: 400g of 64% (Wt) sucrose solution, 375g of super absorbent resin prepared in super absorbent resin preparation example 4, 350000g of clear water, and 1000g of ammonium humate prepared in ammonium humate preparation example 2.
Example 8
The soil conditioner for nursery stock planting comprises the following raw materials by weight: 400g of 64% (Wt) sucrose solution, 375g of super absorbent resin prepared in super absorbent resin preparation example 4, 350000g of clear water, and 800g of ammonium humate prepared by stirring 30% humic acid-containing lignite powder having a particle size of 0.2-0.3cm and aqueous ammonia at a ratio of 1: 2.5.
Comparative example
Comparative example 1
The soil conditioner for nursery stock planting comprises the following raw materials by weight: 300g of 40% (Wt) sucrose solution, 310g of the super absorbent resin prepared in preparation example 2, and 280000g of clean water.
Comparative example 2
The soil conditioner for nursery stock planting comprises the following raw materials by weight: 300g of 60% (Wt) sucrose solution, 310g of super absorbent resin prepared in super absorbent resin preparation example 2, and 140000g of clean water.
Application example
Example of application 1
A use method of a soil conditioner for nursery stock planting comprises the following steps:
step 1 d: mixing soil at the place where the nursery stock grows with a sucrose solution according to a ratio of 1:0.5 to form slurry;
step 2 d: digging out the root system of the seedling completely, wrapping the root system of the seedling with slurry, and then planting the seedling wrapped with the slurry back to the original position;
and step 3 d: mixing the super absorbent resin with 14.2% (Wt) of clear water to obtain saturated super absorbent resin, burying the saturated super absorbent resin at the root of the nursery stock, digging a soil ball with the diameter 8 times of the breast diameter of the nursery stock, binding the soil ball with a straw rope, pouring the soil ball with 28.2% (Wt) of clear water, loading the soil ball and the nursery stock, and then starting transportation, wherein water is not supplemented in the transportation process;
and 4 d: burying the soil balls after transporting to the destination, and then pouring 57.6 percent (Wt) of clean water on the roots of the seedlings.
In the present application examples, the raw materials in example 1 were used: 200g of 55% (Wt) sucrose solution, 250g of super absorbent resin prepared in preparation example 1 of super absorbent resin, and 175000g of clear water.
Example of implementation of application 2
A use method of a soil conditioner for nursery stock planting comprises the following steps:
step 1 d: mixing soil at the place where the nursery stock grows with a sucrose solution according to a ratio of 1:0.6 to form slurry;
step 2 d: digging out the root system of the seedling completely, wrapping the root system of the seedling with slurry, and then planting the seedling wrapped with the slurry back to the original position;
and step 3 d: mixing the super absorbent resin with 15.6% (Wt) of clear water to obtain saturated super absorbent resin, burying the saturated super absorbent resin at the root of the nursery stock, digging a soil ball with the diameter of the breast of the nursery stock being 10 times that of the nursery stock, binding the soil ball with a straw rope, pouring the soil ball with 25.9% (Wt) of clear water, loading the soil ball and the nursery stock, and then starting transportation, wherein water is not supplemented in the transportation process;
and 4 d: burying the soil ball after transporting to the destination, and then pouring 58.5 percent (Wt) of clean water on the root of the nursery stock.
In the present application example, the raw materials in example 2 were used: 300g of 60% (Wt) sucrose solution, 310g of super absorbent resin prepared in preparation example 2 of super absorbent resin, and 280000g of clean water.
Example of implementation of application 3
A use method of a soil conditioner for nursery stock planting comprises the following steps:
step 1 d: mixing soil at the place where the nursery stock grows with a sucrose solution according to the proportion of 1:0.8 to form slurry;
step 2 d: digging out the root system of the seedling completely, wrapping the root system of the seedling with slurry, and then planting the seedling wrapped with the slurry back to the original position;
and step 3 d: mixing the super absorbent resin with 15.6% (Wt) of clear water to obtain saturated super absorbent resin, burying the saturated super absorbent resin at the root of the nursery stock, digging a soil ball with the diameter 12 times of the breast diameter of the nursery stock, binding the soil ball with a straw rope, pouring the soil ball with 26.8% (Wt) of clear water, loading the soil ball and the nursery stock, and then starting transportation, wherein water is not supplemented in the transportation process;
and 4 d: burying the soil balls after transporting to the destination, and then pouring 57.6 percent (Wt) of clean water on the roots of the seedlings.
In the present application example, the raw materials in example 3 were used: 400g of 64% (Wt) sucrose solution, 375g of super absorbent resin prepared in preparation example 3 of super absorbent resin, and 350000g of clear water.
Example of implementation of application 4
A use method of a soil conditioner for nursery stock planting comprises the following steps:
step 1 d: mixing soil at the place where the nursery stock grows with a sucrose solution according to the proportion of 1:0.8 to form slurry;
step 2 d: digging out the root system of the seedling completely, wrapping the root system of the seedling with slurry, and then planting the seedling wrapped with the slurry back to the original position;
and step 3 d: mixing the super absorbent resin with 15.6% (Wt) of clear water to obtain saturated super absorbent resin, burying the saturated super absorbent resin at the root of the nursery stock, digging a soil ball with the diameter 12 times of the breast diameter of the nursery stock, binding the soil ball with a straw rope, pouring the soil ball with 26.8% (Wt) of clear water, loading the soil ball and the nursery stock, and then starting transportation, wherein water is not supplemented in the transportation process;
and 4 d: burying the soil balls after transporting to the destination, and then pouring 57.6 percent (Wt) of clean water on the roots of the seedlings.
In the present application example, the raw materials in example 4 were used: 400g of 64% (Wt) sucrose solution, 375g of super absorbent resin prepared in preparation example 4 of super absorbent resin, and 350000g of clear water.
Example of application 5
A use method of a soil conditioner for nursery stock planting comprises the following steps:
step 1 d: mixing soil at the place where the nursery stock grows with a sucrose solution according to the proportion of 1:0.8 to form slurry;
step 2 d: digging out the root system of the seedling completely, wrapping the root system of the seedling with slurry, and then planting the seedling wrapped with the slurry back to the original position;
and step 3 d: mixing the super absorbent resin with 15.6% (Wt) of clear water to obtain saturated super absorbent resin, burying the saturated super absorbent resin at the root of the nursery stock, digging a soil ball with the diameter 12 times of the breast diameter of the nursery stock, binding the soil ball with a straw rope, pouring the soil ball with 26.8% (Wt) of clear water, loading the soil ball and the nursery stock, and then starting transportation, wherein water is not supplemented in the transportation process;
and 4 d: burying the soil balls after transporting to the destination, and then pouring 57.6 percent (Wt) of clean water on the roots of the seedlings.
In the present application examples, the raw materials in example 5 were used: 400g of 64% (Wt) sucrose solution, 375g of super absorbent resin prepared in preparation example 5 of super absorbent resin, and 350000g of clear water.
Example of implementation of application 6
A use method of a soil conditioner for nursery stock planting comprises the following steps:
step 1 d: mixing soil at the place where the nursery stock grows with a sucrose solution according to the proportion of 1:0.8 to form slurry;
step 2 d: digging out the root system of the seedling completely, wrapping the root system of the seedling with slurry, and then planting the seedling wrapped with the slurry back to the original position;
and step 3 d: mixing the super absorbent resin with 15.6% (Wt) of clear water to obtain saturated super absorbent resin, burying the saturated super absorbent resin at the root of the nursery stock, digging a soil ball with the diameter 12 times of the breast diameter of the nursery stock, binding the soil ball with a straw rope, pouring the soil ball with 26.8% (Wt) of clear water, loading the soil ball and the nursery stock, and then starting transportation, wherein water is not supplemented in the transportation process;
and 4 d: burying soil balls after transporting to a destination, uniformly spraying ammonium humate serving as a nutrient on soil at the roots of the seedlings, and then pouring 57.6% (Wt) of clear water at the roots of the seedlings.
In the present application example, the raw materials in example 6 were used: 400g of 64% (Wt) sucrose solution, 375g of super absorbent resin prepared in super absorbent resin preparation example 4, 350000g of clear water, and 800g of ammonium humate prepared in ammonium humate preparation example 1.
Example 7 of the application
A use method of a soil conditioner for nursery stock planting comprises the following steps:
step 1 d: mixing soil at the place where the nursery stock grows with a sucrose solution according to the proportion of 1:0.8 to form slurry;
step 2 d: digging out the root system of the seedling completely, wrapping the root system of the seedling with slurry, and then planting the seedling wrapped with the slurry back to the original position;
and step 3 d: mixing the super absorbent resin with 15.6% (Wt) of clear water to obtain saturated super absorbent resin, burying the saturated super absorbent resin at the root of the nursery stock, digging a soil ball with the diameter 12 times of the breast diameter of the nursery stock, binding the soil ball with a straw rope, pouring the soil ball with 26.8% (Wt) of clear water, loading the soil ball and the nursery stock, and then starting transportation, wherein water is not supplemented in the transportation process;
and 4 d: burying soil balls after transporting to a destination, uniformly spraying ammonium humate serving as a nutrient on soil at the roots of the seedlings, and then pouring 57.6% (Wt) of clear water at the roots of the seedlings.
In the present application examples, the raw materials in example 7 were used: 400g of 64% (Wt) sucrose solution, 375g of super absorbent resin prepared in super absorbent resin preparation example 4, 350000g of clear water, and 1000g of ammonium humate prepared in ammonium humate preparation example 2.
Example of implementation of application 8
A use method of a soil conditioner for nursery stock planting comprises the following steps:
step 1 d: mixing soil at the place where the nursery stock grows with a sucrose solution according to a ratio of 1:0.6 to form slurry;
step 2 d: digging out the root system of the seedling completely, wrapping the root system of the seedling with slurry, and then planting the seedling wrapped with the slurry back to the original position;
and step 3 d: mixing the super absorbent resin with 15.6% (Wt) of clear water to obtain saturated super absorbent resin, burying the saturated super absorbent resin at the root of the nursery stock, digging a soil ball with the diameter of the breast of the nursery stock being 10 times that of the nursery stock, binding the soil ball with a straw rope, pouring the soil ball with 25.9% (Wt) of clear water, loading the soil ball and the nursery stock, and then starting transportation, wherein water is not supplemented in the transportation process;
and 4 d: burying soil balls after transporting to a destination, uniformly spraying ammonium humate serving as a nutrient on soil at the roots of the seedlings, and then pouring 58.5% (Wt) of clear water at the roots of the seedlings.
In the application examples, the raw materials in comparative example 3 were used: 400g of 64% (Wt) sucrose solution, 375g of super absorbent resin prepared in super absorbent resin preparation example 4, 350000g of clear water, and 800g of ammonium humate prepared by stirring 30% humic acid-containing lignite powder having a particle size of 0.2-0.3cm and aqueous ammonia at a ratio of 1: 2.5.
Comparative application example
Comparative application example 1
A use method of a soil conditioner for nursery stock planting comprises the following steps:
step 1 d: mixing soil at the place where the nursery stock grows with a sucrose solution according to a ratio of 1:0.6 to form slurry;
step 2 d: digging out the root system of the seedling completely, wrapping the root system of the seedling with slurry, and then planting the seedling wrapped with the slurry back to the original position;
and step 3 d: mixing the super absorbent resin with 15.6% (Wt) of clear water to obtain saturated super absorbent resin, burying the saturated super absorbent resin at the root of the nursery stock, digging a soil ball with the diameter of the breast of the nursery stock being 10 times that of the nursery stock, binding the soil ball with a straw rope, pouring the soil ball with 25.9% (Wt) of clear water, loading the soil ball and the nursery stock, and then starting transportation, wherein water is not supplemented in the transportation process;
and 4 d: burying the soil ball after transporting to the destination, and then pouring 58.5 percent (Wt) of clean water on the root of the nursery stock.
In the application examples, the raw materials in comparative example 1 were used: 300g of 40% (Wt) sucrose solution, 310g of the super absorbent resin prepared in preparation example 2, and 280000g of clean water.
Comparative application example 2
A use method of a soil conditioner for nursery stock planting comprises the following steps:
step 1 d: mixing soil at the place where the nursery stock grows with a sucrose solution according to a ratio of 1:0.6 to form slurry;
step 2 d: digging out the root system of the seedling completely, wrapping the root system of the seedling with slurry, and then planting the seedling wrapped with the slurry back to the original position;
and step 3 d: mixing the super absorbent resin with 15.6% (Wt) of clear water to obtain saturated super absorbent resin, burying the saturated super absorbent resin at the root of the nursery stock, digging a soil ball with the diameter of the breast of the nursery stock being 10 times that of the nursery stock, binding the soil ball with a straw rope, pouring the soil ball with 25.9% (Wt) of clear water, loading the soil ball and the nursery stock, and then starting transportation, wherein water is not supplemented in the transportation process;
and 4 d: burying the soil ball after transporting to the destination, and then pouring 58.5 percent (Wt) of clean water on the root of the nursery stock.
In the application examples, the raw materials in comparative example 2 were used: 300g of 60% (Wt) sucrose solution, 310g of super absorbent resin prepared in super absorbent resin preparation example 2, and 140000g of clean water.
Performance test and test method thereof
Test of triphenyltetrazolium monochloride (TTC) method
Using 0.5% TTC solution, Na2SO4Preparing a TTC standard curve by using the powder and ethyl acetate;
cutting a seedling root system with vitality, absorbing surface water, shearing into 2cm small sections, placing into a culture dish, weighing 0.5g of a root system sample, adding 10mL0.5% of mixed solution of TTC and phosphoric acid buffer solution in equal amount, keeping the temperature at 37 ℃ in the dark for 1 hour, and adding 2mL of 1mol/L sulfuric acid;
and (3) taking out the root section which is subjected to qualitative color development, sucking dry water, grinding the root section with 3-4mL of ethyl acetate and a small amount of quartz sand in a mortar, transferring the obtained red extracting solution into a test tube, fixing the volume to 10mL by using the ethyl acetate, shaking up, measuring the absorbance at 485nm by using the ethyl acetate as a reference, checking a standard curve, and obtaining the reduction amount of the tetrazole.
Determination of Water absorption Capacity of test two
The test method was carried out according to the provisions of appendix A in Water-retaining Agents for agriculture and forestry (NY/T886-2016).
Three soil burying degradation experiments
The samples of superabsorbent resin were crushed through a 100 μm standard sieve and oven dried at 80 ℃ to constant weight. Weighing 1g of sample, adding the sample into tetrahydrofuran solution in which 2g of PVC powder is dissolved, stirring uniformly, pouring the mixture onto a clean watch glass to uniformly distribute the mixture, air-drying the mixture in the air, cutting the sheet into strips of 3x 3cm, drying the strips until the weight is constant, and recording the mass (W)O) And the mass fraction of PVC in the sample (C).
Putting soil with nursery stock growing position into a wide-mouth bottle, vertically burying a PVC-containing super absorbent resin sample into the soil, keeping the soil loose and circulating air inside and outside the bottle, placing the bottle in a thermostat at 35 ℃ for 30 days, taking out a sample every 3 days, immersing the sample into 75% ethanol solution, slightly rinsing, removing impurities such as slurry, washing with deionized water for 1 time, drying to constant weight, and recording the mass (W)1)，
Taking the average value of three parallel samples, and calculating the degradation rate according to the formula:
experiment on the survival rate of four seedlings
And (4) counting the normally grown seedlings after 7d of transplantation, and calculating the percentage of the normally grown seedlings and the total transported seedlings (the number of the seedlings in each test group is consistent), so as to obtain the survival rate of the seedlings.
Five nursery stock height measurements of experiment
And measuring and recording the growth heights of the seedlings at different times before transportation and after transplantation so as to detect the growth condition of the seedlings.
Table 1 table of average root activity data of seedlings in practical application examples 1 to 3 and comparative application examples 1 to 2 at different times
(the blank test is set by the following steps of 1d, digging a soil ball with the diameter of 10 times of the breast diameter of the nursery stock, binding the soil ball with a straw rope, pouring 25.9% of clear water in the embodiment 2 by weight into the soil ball, loading the soil ball and the nursery stock, and then starting transportation, wherein water is not supplemented during transportation, and 2d, burying the soil ball after transportation to a destination, pouring 58.5% of clear water in the embodiment 2 by weight into the root of the nursery stock.)
By combining the implementation application examples 1-3 and the blank test and combining the table 1, it can be seen that the activity of the root system of the seedling wrapped by the slurry is lower than that of the root system of the seedling not wrapped by the slurry when the sucrose solution is added into the slurry, the activity of the root system of the seedling is continuously lower than that of the seedling which normally grows, namely the activity of the root system of the seedling in the blank test, the seedling in the blank test is only watered with clear water, and the activity of the root system of the seedling in the blank test is gradually reduced; dilute when adding the clear water to the sucrose solution of seedling root system, seedling root system vigor rises gradually, can release sucrose solution from this and have the inhibitory action to the seedling root system, when diluting sucrose solution concentration, the seedling root system resumes the root system vigor, combine to implement application example 2, contrast application example 1-2 and blank test and combine table 1 can see out, the inhibitory action of sucrose solution under the contrast application example 1 concentration to the seedling root system is not obvious, the seedling root system vigor that the clear water volume is few is added to contrast application example 2 receives the inhibitory action, but the unable revivification of later stage root system.
TABLE 2 tables of water absorption capacity data of preparation examples 1 to 5 of super absorbent resin
As can be seen from Table 2 in conjunction with preparation examples 1 to 5 of super absorbent resin, all of the super absorbent resins prepared had water absorption capacity, and preparation example 4 of super absorbent resin had the highest water absorption capacity, which suggests that the super absorbent resin having a particle size of 0.9 to 1.2mm had the best water absorption capacity.
TABLE 3 degradation Rate data at various times of preparation example 4 of super absorbent resin
As can be seen from Table 3, the degradation rate of the super absorbent resin of preparation example 4 in the soil where seedlings grow gradually increases within 30 days and reaches a basic degradation after 30 days, and it can be concluded that the super absorbent resin is degradable and has a high degradation rate.
TABLE 4 Nursery stock survival rates of practical examples 1-8 and comparative practical examples 1-2
By combining the examples 1 to 8 and the comparative application examples 1 to 2 and combining the table 4, the survival rate of the comparative application examples 1 to 2 is lower, and by combining the application examples 1 to 5 and combining the table 4, the addition of the sucrose solution with the concentration of 55 to 64 percent and the super absorbent resin has a positive effect on the growth of the nursery stock, so that the survival rate of the nursery stock can be effectively improved; as can be seen from table 4, the ammonium humate nutrient prepared in preparation examples 1 to 2, which was added with ammonium humate, was applied to the nursery stock of examples 6 to 7, so that it was concluded that the nutrient could improve the survival rate of the nursery stock after transplantation and promote the growth of the nursery stock.
Table 5 table of nursery stock height data of practical example 4 and practical examples 6 to 8
As can be seen by combining example 4, examples 6 to 8 and table 5, the changes in the seedling heights during transportation of example 4 and examples 6 to 8 were not significant, and after 7 to 14 days of transplantation, the changes in the seedling heights of example 4 and examples 6 to 8 were significantly changed, wherein the changes in the seedling heights of example 4 and example 8 were smaller than those of examples 6 to 8, the changes in the seedling heights of example 6 and example 7 were significant than those of example 8, and the trends in the seedling heights of example 4 and example 8 tended to be stable and the increases in the seedling heights of example 6 and example 7 continued to be increased within 28 to 40 days of transplantation, which suggests that the nutrients prepared in example 1 and example 2 were more favorable for the growth of seedlings than the ammonium humate nutrients prepared by the conventional method The effect is good.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. The soil conditioner for nursery stock planting is characterized in that: comprises the following raw materials in parts by weight: 400 portions of sucrose solution, 375 portions of super absorbent resin and 175000 portions of clean water and 350000 portions; the concentration range of the sucrose solution is 55-64%.
2. The soil conditioner for nursery stock planting according to claim 1, characterized in that: the preparation method of the super absorbent resin comprises the following steps:
step 1 a: dissolving 8-12 parts of LiCl in 92-100 parts of NMP solvent to prepare LiCl/NMP solution, adding 0.5-1 part of cotton cellulose into the prepared LiCl/NMP solution to dissolve to obtain first dissolved substance, and stirring at room temperature for 2d-4 d;
step 2 a: stirring the first dissolved substance, adding 1.19-2.32 parts of DMAP (dimethyl formamide) to dissolve the DMAP to obtain a second dissolved substance, adding 18.6-21.5 parts of succinic anhydride to the second dissolved substance, and stirring at room temperature for 24-36 hours to obtain a third dissolved substance;
step 3 a: pouring the third dissolved substance into 790 and 1185 parts of methanol, and neutralizing with 74.2-82.6 parts of 10% (Wt) NaOH solution to obtain a fourth dissolved substance;
step 4 a: and filtering the fourth dissolved substance, drying under reduced pressure, and crushing to obtain the super absorbent resin.
3. The soil conditioner for nursery stock planting according to claim 2, characterized in that: the particle size range of the super absorbent resin is 0.9-1.2 mm.
4. The soil conditioner for nursery stock planting according to claim 2, characterized in that: the preparation method of the cotton cellulose comprises the following steps:
step 1 b: cutting 20-30 parts of absorbent cotton, grinding, drying and crushing to obtain absorbent cotton powder;
and step 2 b: adding 5-10 parts of the absorbent cotton powder into 113-136 parts of 15% (Wt) NaOH solution, soaking for 1-2h, performing ultrasonic treatment for 0.5-1h, heating and stirring for 24-30h, and filtering to obtain crude cotton cellulose;
and step 3 b: washing the crude cotton cellulose with deionized water until washing liquor is colorless and neutral, then adding 10% (Wt) hydrogen peroxide solution for decoloring and purifying, then washing with ethanol, adjusting the pH value of the solution to 4.5-5.0, performing ultrasonic treatment for 0.5-1h, then keeping constant temperature at 60 ℃, stirring for reaction for 1-2h, cooling to room temperature, filtering, finally adding 45-55mL methanol solution, refluxing, stirring, heating for 0.5-1h, filtering, and discarding filtrate to obtain filter residue;
and 4 b: washing the filter residue with deionized water until the filter residue is colorless and neutral, filtering, eluting with 60% (Wt) ethanol to remove residual esters and water, washing with acetone, filtering, and drying at 60 ℃ to obtain the cotton cellulose.
5. The soil conditioner for nursery stock planting according to claim 1, characterized in that: the soil conditioner for planting the seedlings further comprises 1000 parts of a nutrient 800-.
6. The soil conditioner for nursery stock planting according to claim 5, wherein: the nutrient is ammonium humate, and the preparation method of the ammonium humate comprises the following steps:
step 1 c: mixing ammonium bicarbonate and weathered coal according to the proportion of 1: (3-4) mixing in a weight ratio to obtain a mixture;
and step 2 c: stirring the mixture for 1-2h at the temperature of 20-30 ℃, wherein the stirring speed is 30-40 r/min;
and step 3 c: and rolling the mixture at the rolling pressure of 1.6-2kg/cm2 to obtain the ammonium humate.
7. The soil conditioner for seedling planting as set forth in claim 6, wherein: the humic acid content in the weathered coal is 50-60% by weight.
8. The use of a soil conditioner for nursery stock plantation as claimed in any one of claims 1-7, wherein: the method comprises the following steps:
step 1 d: taking soil of the place where the nursery stock grows and a sucrose solution according to the proportion of 1: (0.5-0.8) mixing into slurry;
step 2 d: digging out the root system of the seedling completely, wrapping the root system of the seedling with slurry, and then planting the seedling wrapped with the slurry back to the original position;
and step 3 d: mixing the super absorbent resin with 14.2-15.6% (Wt) of clear water to obtain saturated super absorbent resin, burying the saturated super absorbent resin at the root of the nursery stock, then digging a soil ball 8-12 times of the breast diameter of the nursery stock, binding the soil ball with a straw rope, then pouring the soil ball with 25.9-28.6% (Wt) of clear water, loading the soil ball and the nursery stock, and then starting transportation, wherein water is not supplemented any more during transportation;
and 4 d: burying soil balls after transporting to a destination, uniformly spraying the nutrient on the soil at the root of the nursery stock, and then pouring 57.6-59.9% (Wt) of clear water on the root of the nursery stock.
9. The use method of the soil conditioner for nursery stock planting according to claim 8, characterized in that: in step 3d, the saturated super absorbent resin is uniformly buried in soil with the depth of 10-15cm around the root of the seedling.
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