CN107509513B - Method for cultivating strong pepper seedlings by using barley leaching liquor under continuous cropping condition - Google Patents
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
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Abstract
The invention discloses a method for cultivating strong pepper seedlings by using barley leaching liquor under continuous cropping conditions, and belongs to the field of crop planting. A method for cultivating strong pepper seedlings by utilizing barley leaching liquor under continuous cropping conditions comprises the steps of uniformly mixing barley stem and leaf powder and water in a mass ratio of 1: 10-25, carrying out accelerated dissolution, soaking, filtering and diluting, and carrying out root irrigation on pepper seedlings growing to three leaves and one heart by using diluted liquid. According to the method for cultivating the strong pepper seedlings under the continuous cropping condition by using the barley leaching liquor, when root irrigation treatment is carried out by using the barley leaching liquor with the concentration of 0.04g/ml, the stem thickness, the strong seedling index and the relative chlorophyll content of the pepper are respectively increased by 16.39%, 58.33% and 14.42% compared with those of a control component; the root weight, fresh weight and dry weight of the pepper roots in the pepper biomass are respectively increased by 42.99% and 54.55% compared with the control group.
Description
Technical Field
The invention relates to the field of crop planting, in particular to a method for cultivating strong pepper seedlings by using barley leaching liquor under continuous cropping conditions.
Background
The pepper is an annual or limited perennial plant of the solanaceae, has high nutritive value, strong adaptability and wide cultivation range, and is popular with Chinese people. However, as the planting area of the pepper is continuously enlarged, the problems of adversity stress such as diseases, continuous cropping obstacles and the like are increasingly prominent, and the adverse stress becomes a serious obstacle for limiting the yield increase of the pepper. At present, in order to promote the growth and development of hot peppers and relieve the continuous cropping obstacle of the hot peppers, traditional chemical pesticide means is usually adopted in agricultural production, but the control effect is limited, the problems of great harm, low utilization rate and the like exist, and the pollution-free production of the hot pepper industry is seriously influenced. Gramineous crops are often used as companion and made into green manure, while barley is a typical allelochemical substance and can affect the growth of weeds in the field; the barley has strong regrowth capability and easy harvesting, and the leaching liquor has simple preparation, environmental protection and high utilization rate, thus being an effective green manure crop.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a method for cultivating hot pepper strong seedlings by using barley leaching liquor under continuous cropping conditions, which can improve the growth of hot peppers and relieve continuous cropping obstacles in practical application; the leaching liquor of the invention can also replace chemical fertilizers and partial chemical pesticides to produce novel plant green manure.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a method for cultivating strong pepper seedlings under continuous cropping conditions by utilizing barley leaching liquor, which comprises the steps of uniformly mixing barley stem and leaf powder and water in a mass ratio of 1: 10-25, carrying out accelerated dissolution, soaking and filtering to obtain barley leaching stock solution and barley powder residues, diluting the barley leaching stock solution to obtain diluted barley leaching liquor, and carrying out root irrigation treatment on pepper seedlings growing to three leaves and one heart by using the diluted barley leaching liquor;
concentrating the barley leaching liquor stock solution into paste, and uniformly mixing the paste with the barley powder residue and the air-dried farmyard manure according to the mass ratio of 1:1: 3-5 to form a cluster to obtain an internal fertilizer;
at least one layer of coating is wrapped outside the internal fertilizer to form a coated fertilizer;
the coating comprises the following components in parts by mass:
10-15 parts of plant ash; 20-30 parts of bentonite; 15-20 parts of attapulgite; 1-5 parts of urea; 1-5 parts of potassium diphosphate; 10-15 parts of diatomite; 10-20 parts of water;
after the last root irrigation treatment of the pepper seedlings is completed, the coated fertilizer is buried around the pepper seedlings at the next day, and the distance between the coated fertilizer and the pepper seedlings is 5-10 cm and the depth is less than 10 cm.
In a preferred technical scheme of the invention, the accelerated dissolution is stirring by using a magnetic stirrer or an electric stirrer or ultrasonic by using an ultrasonic instrument; the accelerated dissolution time is not less than 30 min.
In a preferred technical scheme of the invention, the soaking time is not less than 12 hours.
In a preferred technical scheme of the invention, the filtration is gauze filtration, membrane filtration or vacuum filtration.
In a preferred technical scheme of the invention, the dilution multiple of the dilution is 2-10 times.
In a preferred technical scheme of the invention, the root irrigation frequency is 1 time every two days, each pepper seedling is 20mL, and the root irrigation time is 20 days.
In a preferred technical scheme of the invention, the barley stem and leaf powder is prepared by the following steps:
s1: picking fresh barley, separating stem leaves and roots of the barley, and cleaning the stem leaves of the barley for later use to obtain the standby stem leaves of the barley;
s2: de-enzyming the standby barley stems and leaves by using a heating device to obtain de-enzymed barley stems and leaves;
s3: drying the de-enzymed barley stems and leaves by using a drying device to obtain dried barley stems and leaves;
s4: and (3) crushing the dried barley stems and leaves by using a crusher to obtain barley stem and leaf powder.
In a preferred technical scheme of the invention, the heating device is an oven or a plant water-removing machine; the water-removing temperature is 100-150 ℃, and the water-removing time is not less than 10 min.
In a preferred technical scheme of the invention, the drying device is one of a constant-temperature oven, a vacuum drying oven and a steam drying oven; the drying temperature is 50-80 ℃, and the drying time is more than 0.5 h.
In a preferred technical scheme of the invention, the material outlet of the pulverizer is provided with a 200-mesh sieve, and the material is automatically sieved after being pulverized.
The invention has the beneficial effects that:
the invention provides a method for cultivating strong pepper seedlings by using barley leaching liquor under continuous cropping conditions, which greatly improves the growth state and biomass of pepper seedlings subjected to root irrigation treatment by using the barley leaching liquor and a control group for root irrigation treatment of the pepper seedlings by using water only: when the barley leaching solution with the concentration of 0.04g/ml is used for root irrigation treatment on pepper seedlings, the stem thickness, the strong seedling index and the relative chlorophyll content of the pepper are respectively increased by 16.39%, 58.33% and 14.42% compared with those of a control group; the pepper biomass, especially the root system weight, the fresh root weight and the dry root weight of the pepper seedlings are respectively increased by 42.99 percent and 54.55 percent compared with the control group.
The method for cultivating strong pepper seedlings by using the barley leaching liquor under the continuous cropping condition is beneficial to cultivating strong pepper seedlings and improving the resistance to continuous cropping obstacle adversity stress.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments.
Example 1
The embodiment provides a method for cultivating strong pepper seedlings by using barley leaching liquor under continuous cropping conditions, which comprises the following steps:
the tested pepper variety is spicy No. 8, and is provided by Jiangxi Hua agricultural crop Co., Ltd; the barley to be tested was a barley with skin purchased from Zheng Zhou Huafeng grass science and technology Co.
Soil: the soil is obtained from the soil of 5 years of continuous cropping of the capsicum in the experimental base of agricultural academy of sciences of Jiangxi province. The basic physicochemical properties of the soil are as follows: the pH value is 4.52, and the alkaline hydrolysis nitrogen is 80.7 mg/kg-116.7 mg/kg of available phosphorus-1393 mg/kg quick-acting potassium-136.5 g/kg of organic matter-1。
Preparing a leaching solution:
s1: picking fresh barley, separating stem leaves and roots of the barley, and cleaning the stem leaves of the barley for later use to obtain the standby stem leaves of the barley;
s2: heating the reserved barley stems and leaves by using an oven for fixation, wherein the heating temperature is 105 ℃, and the fixation time is 1h to obtain the fixation barley stems and leaves;
s3: drying the de-enzymed barley stems and leaves by using a constant-temperature oven at 65 ℃ for 2h to obtain dried barley stems and leaves;
s4: pulverizing the dried barley stems and leaves by using a pulverizer, and sieving to obtain barley stem and leaf powder.
S5: weighing 48g of barley stem and leaf powder, respectively putting the barley stem and leaf powder into a triangular flask filled with 1.2L of water, ultrasonically shaking for 2 hours, and standing for 24 hours to obtain standing barley leaching liquor;
s6: filtering the standing barley leaching solution by using gauze to obtain a stock solution A1 with the concentration of 0.04g/mL, respectively diluting 9 parts of 0.1L stock solution by 2-10 times to obtain 2-10 times of a diluent A2, A3, A4, A5, A6, A7, A8, A9 and A10, and placing the diluted stock solution in a place at 4 ℃ for reservation.
Concentrating the barley leaching liquor stock solution into paste, and uniformly mixing the paste with the barley powder residue and the air-dried farmyard manure according to the mass ratio of 1:1:3 to form a cluster to obtain an internal fertilizer; a layer of coating is coated outside the internal fertilizer to form a coated fertilizer; the coating comprises the following components in parts by mass: 10 parts of plant ash; 20 parts of bentonite; 15 parts of attapulgite; 1 part of urea; 1 part of potassium diphosphate; 10 parts of diatomite; and 10 parts of water. And (3) the coating components except water are all powder, and the powder is uniformly mixed and then coated on the internal fertilizer to form the coated fertilizer.
Effect experiment of pepper: potting experiments were carried out in the Jieliu building greenhouse of the agricultural institute of university of Jiangxi agriculture in 5 months in 2017. Selecting pepper seeds, putting the pepper seeds into warm water for soaking for a period of time, fishing out the pepper seeds, transferring the pepper seeds onto a culture dish paved with two layers of filter paper, putting the pepper seeds into a constant temperature box at 28 ℃ for accelerating germination, sprouting the pepper seeds, sowing the pepper seeds into a 50-hole tray after sprouting, selecting the pepper seeds with consistent growth potential when the pepper seeds grow to have two leaves and one heart, and transplanting the pepper seeds into a nutrition pot (100 x 110mm) filled with pepper continuous cropping soil; pouring pepper seedlings when three leaves and one heart are formed, pouring roots of the pepper seedlings once every 2 days, treating 10 pots of leaching liquor for each plant each time, repeating for 3 times, randomly placing in a greenhouse, and performing conventional management; after 20 days of root irrigation treatment, burying the coated fertilizer at a distance of 5cm and a depth of 10cm from the pepper seedlings on the 21 st day, randomly sampling to determine growth indexes after the 30 th day, and greatly changing the growth vigor of the pepper seedlings irrigated with the barley leaching liquor with different dilution times.
The growth morphology, relative chlorophyll content and biomass index measurements are shown in tables 1 and 2.
TABLE 1 Effect of leach liquors on the growth morphology of pepper seedlings
TABLE 2 Effect of leach liquors on Hot Pepper seedling Biomass
Note: the control group was identical to the experimental group except that the barley extract was changed to water, and the data in the table are mean ± sem (different lower case letters after the same row data indicate significant difference (p ≦ 0.05).
As can be seen from tables 1 and 2, when the barley leaching solution with the experimental group concentration of 0.04g/mL is used for root irrigation of pepper seedlings, the growth state of the pepper seedlings can reach the optimal state: namely, the stem thickness, the strong seedling index and the relative chlorophyll content of the pepper are respectively increased by 16.39%, 58.33% and 14.42% at most compared with those of a control group; the biomass of the pepper, particularly the weight of the root system, the fresh weight of the root and the dry weight of the root of the pepper seedling are respectively increased by 42.99 percent and 54.55 percent at most compared with the control group.
Example 2
The embodiment provides a method for cultivating strong pepper seedlings by using barley leaching liquor under continuous cropping conditions, which comprises the following steps:
the tested pepper variety is spicy No. 8, and is provided by Jiangxi Hua agricultural crop Co., Ltd; the barley to be tested was a barley with skin purchased from Zheng Zhou Huafeng grass science and technology Co.
Soil: the soil is obtained from the soil of 5 years of continuous cropping of the capsicum in the experimental base of agricultural academy of sciences of Jiangxi province. The basic physicochemical properties of the soil are as follows: the pH value is 4.52, and the alkaline hydrolysis nitrogen is 80.7 mg/kg-116.7 mg/kg of available phosphorus-1393 mg/kg quick-acting potassium-136.5 g/kg of organic matter-1。
Preparing a leaching solution:
s1: picking fresh barley, separating stem leaves and roots of the barley, and cleaning the stem leaves of the barley for later use to obtain the standby stem leaves of the barley;
s2: heating the reserved barley stems and leaves by using an oven for fixation, wherein the heating temperature is 100 ℃, and the fixation time is 1h to obtain the fixation barley stems and leaves;
s3: drying the de-enzymed barley stems and leaves by using a constant-temperature oven at the drying temperature of 50 ℃ for 2h to obtain dried barley stems and leaves;
s4: pulverizing the dried barley stems and leaves by using a pulverizer, and sieving to obtain barley stem and leaf powder.
S5: weighing 60g of barley stem and leaf powder, respectively putting the barley stem and leaf powder into a triangular flask filled with 1.2L of water, magnetically stirring for 3 hours, and standing for 15 hours to obtain standing barley leaching liquor;
s6: and (3) filtering the standing barley leaching liquor by using a membrane to obtain a stock solution A1 with the concentration of 0.05g/mL, respectively diluting 9 parts of 0.1L stock solution by 2-10 times to obtain 2-10 times of a diluent A2, A3, A4, A5, A6, A7, A8, A9 and A10, and placing the diluted stock solution into a container at 4 ℃ for retention.
Concentrating the barley leaching liquor stock solution into paste, and uniformly mixing the paste with the barley powder residue and the air-dried farmyard manure according to the mass ratio of 1:1:4 to form a cluster to obtain an internal fertilizer;
a layer of coating is coated outside the internal fertilizer to form a coated fertilizer;
the coating comprises the following components in parts by mass:
12 parts of plant ash; 25 parts of bentonite; 17 parts of attapulgite; 3 parts of urea; 3 parts of potassium diphosphate; 12 parts of diatomite; and 15 parts of water. And (3) the coating components except water are all powder, and the powder is uniformly mixed and then coated on the internal fertilizer to form the coated fertilizer.
Effect experiment of pepper: potting experiments were carried out in the Jieliu building greenhouse of the agricultural institute of university of Jiangxi agriculture in 5 months in 2017. Selecting pepper seeds, putting the pepper seeds into warm water for soaking for a period of time, fishing out the pepper seeds, transferring the pepper seeds onto a culture dish paved with two layers of filter paper, putting the pepper seeds into a constant temperature box at 28 ℃ for accelerating germination, sprouting the pepper seeds, sowing the pepper seeds into a 50-hole tray after sprouting, selecting the pepper seeds with consistent growth potential when the pepper seeds grow to have two leaves and one heart, and transplanting the pepper seeds into a nutrition pot (100 x 110mm) filled with pepper continuous cropping soil; pouring pepper seedlings when three leaves and one heart are formed, pouring roots of the pepper seedlings once every 2 days, treating 10 pots of leaching liquor for each plant each time, repeating for 3 times, randomly placing in a greenhouse, and performing conventional management; and after 20 days of root irrigation, embedding the coated fertilizer at a distance of 7cm and a depth of 12cm from the pepper seedlings on the 21 st day, randomly sampling to determine a growth index after the 30 th day, and greatly changing the growth vigor of the pepper seedlings irrigated with the barley leaching solution with different dilution times.
The growth morphology, relative chlorophyll content and biomass index measurements are shown in tables 1 and 2.
TABLE 1 Effect of leach liquors on the growth morphology of pepper seedlings
TABLE 2 Effect of leach liquors on Hot Pepper seedling Biomass
Note: the control group was identical to the experimental group except that the barley extract was changed to water, and the data in the table are mean ± sem (different lower case letters after the same row data indicate significant difference (p ≦ 0.05).
As can be seen from tables 1 and 2, when the barley leaching solution with the experimental group concentration of 0.04g/mL is used for root irrigation of pepper seedlings, the growth state of the pepper seedlings can reach the optimal state: the stem thickness, the strong seedling index and the relative chlorophyll content of the pepper are respectively increased by 14.05 percent, 54.16 percent and 13.46 percent at most compared with those of a control group; the biomass of the pepper, particularly the weight of the root system, the fresh weight of the root and the dry weight of the root of the pepper seedling are respectively increased by 42.05 percent and 45.45 percent at most compared with the control group.
Example 3
The embodiment provides a method for cultivating strong pepper seedlings by using barley leaching liquor under continuous cropping conditions, which comprises the following steps:
the tested pepper variety is spicy No. 8, and is provided by Jiangxi Hua agricultural crop Co., Ltd; the barley to be tested was a barley with skin purchased from Zheng Zhou Huafeng grass science and technology Co.
Soil: the soil is obtained from the soil of 5 years of continuous cropping of the capsicum in the experimental base of agricultural academy of sciences of Jiangxi province. The basic physicochemical properties of the soil are as follows: the pH value is 4.52, and the alkaline hydrolysis nitrogen is 80.7 mg/kg-116.7 mg/kg of available phosphorus-1393 mg/kg quick-acting potassium-136.5 g/kg of organic matter-1。
Preparing a leaching solution:
s1: picking fresh barley, separating stem leaves and roots of the barley, and cleaning the stem leaves of the barley for later use to obtain the standby stem leaves of the barley;
s2: heating the reserved barley stems and leaves by using an oven for fixation, wherein the heating temperature is 150 ℃, and the fixation time is 1h to obtain the fixation barley stems and leaves;
s3: drying the de-enzymed barley stems and leaves by using a constant-temperature oven at the drying temperature of 80 ℃ for 1h to obtain dried barley stems and leaves;
s4: pulverizing the dried barley stems and leaves by using a pulverizer, and sieving to obtain barley stem and leaf powder.
S5: weighing 120g of barley stem and leaf powder, respectively putting into triangular flasks filled with 1.2L of water, stirring for 3h by electric power, and standing for 20h to obtain standing barley leaching liquor;
s6: and (3) carrying out vacuum filtration on the standing barley leaching solution to obtain a stock solution A1 with the concentration of 0.1g/mL, taking 9 parts of 0.1L of the stock solution, diluting the stock solution 2-10 times respectively to obtain 2-10 times of a diluent A2, A3, A4, A5, A6, A7, A8, A9 and A10, and placing the diluted stock solution at 4 ℃ for reservation.
Concentrating the barley leaching liquor stock solution into paste, and uniformly mixing the paste with the barley powder residue and the air-dried farmyard manure according to the mass ratio of 1:1:5 to form a cluster to obtain an internal fertilizer;
a layer of coating is coated outside the internal fertilizer to form a coated fertilizer;
the coating comprises the following components in parts by mass:
15 parts of plant ash; 30 parts of bentonite; 20 parts of attapulgite; 5 parts of urea; 5 parts of potassium diphosphate; 15 parts of diatomite; and 20 parts of water. And (3) the coating components except water are all powder, and the powder is uniformly mixed and then coated on the internal fertilizer to form the coated fertilizer.
Effect experiment of pepper: potting experiments were carried out in the Jieliu building greenhouse of the agricultural institute of university of Jiangxi agriculture in 5 months in 2017. Selecting pepper seeds, putting the pepper seeds into warm water for soaking for a period of time, fishing out the pepper seeds, transferring the pepper seeds onto a culture dish paved with two layers of filter paper, putting the pepper seeds into a constant temperature box at 28 ℃ for accelerating germination, sprouting the pepper seeds, sowing the pepper seeds into a 50-hole tray after sprouting, selecting the pepper seeds with consistent growth potential when the pepper seeds grow to have two leaves and one heart, and transplanting the pepper seeds into a nutrition pot (100 x 110mm) filled with pepper continuous cropping soil; pouring pepper seedlings when three leaves and one heart are formed, pouring roots of the pepper seedlings once every 2 days, treating 10 pots of leaching liquor for each plant each time, repeating for 3 times, randomly placing in a greenhouse, and performing conventional management; after 20 days of root irrigation treatment, burying the coated fertilizer at a distance of 10cm and a depth of 15cm from the pepper seedlings on the 21 st day, randomly sampling to determine growth indexes after the 30 th day, and greatly changing the growth vigor of the pepper seedlings irrigated with the barley leaching liquor with different dilution times.
The growth morphology, relative chlorophyll content and biomass index measurements are shown in tables 1 and 2.
TABLE 1 Effect of leach liquors on the growth morphology of pepper seedlings
TABLE 2 Effect of leach liquors on Hot Pepper seedling Biomass
Note: the control group was identical to the experimental group except that the barley extract was changed to water, and the data in the table are mean ± sem (different lower case letters after the same row data indicate significant difference (p ≦ 0.05).
As can be seen from tables 1 and 2, when the barley leaching solution with the experimental group concentration of 0.04g/mL is used for root irrigation of pepper seedlings, the growth state of the pepper seedlings can reach the optimal state: namely, the stem thickness, the strong seedling index and the relative chlorophyll content of the pepper are respectively increased by 12.70 percent, 41.67 percent and 13.70 percent at most compared with those of a control group; the pepper biomass, especially the root system weight, the fresh root weight and the dry root weight of the pepper seedlings are increased by 42.99 percent and 54.54 percent respectively.
In summary, from examples 1 to 3, it can be seen that when the barley extract solution with a1 concentration of 0.04g/mL in experimental group example 1 is used to perform root irrigation on pepper seedlings, the growth status can reach the optimal status: namely, the stem thickness, the strong seedling index and the relative chlorophyll content of the pepper are respectively increased by 16.39%, 58.33% and 14.42% at most compared with those of a control group; the biomass of the pepper, particularly the weight of the root system, the fresh weight of the root and the dry weight of the root of the pepper seedling are respectively increased by 42.99 percent and 54.55 percent at most compared with the control group.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (9)
1. A method for cultivating strong pepper seedlings by using barley leaching liquor under continuous cropping conditions is characterized by comprising the following steps:
uniformly mixing barley stem and leaf powder and water in a mass ratio of 1: 10-25, performing accelerated dissolution, soaking and filtering to obtain barley extraction stock solution and barley powder residues, diluting the barley extraction stock solution by a dilution multiple of 2-10 times to obtain diluted barley leaching solution, and performing root irrigation treatment on pepper seedlings growing to three leaves and one heart by using the diluted barley leaching solution;
concentrating the barley leaching liquor stock solution into paste, and uniformly mixing the paste with the barley powder residue and the air-dried farmyard manure according to the mass ratio of 1:1: 3-5 to form a cluster to obtain an internal fertilizer;
at least one layer of coating is wrapped outside the internal fertilizer to form a coated fertilizer;
the coating comprises the following components in parts by mass:
10-15 parts of plant ash; 20-30 parts of bentonite; 15-20 parts of attapulgite; 1-5 parts of urea; 1-5 parts of potassium diphosphate; 10-15 parts of diatomite; 10-20 parts of water;
after the last root irrigation treatment of the pepper seedlings is completed, the coated fertilizer is buried around the pepper seedlings at the next day, and the distance between the coated fertilizer and the pepper seedlings is 5-10 cm and the depth is less than 10 cm.
2. The method for cultivating strong pepper seedlings under continuous cropping conditions by using barley leachate according to claim 1, wherein the barley leachate comprises:
the accelerated dissolution is stirring by using a magnetic stirrer or an electric stirrer or ultrasonic treatment by using an ultrasonic instrument;
the accelerated dissolution time is not less than 30 min.
3. The method for cultivating strong pepper seedlings under continuous cropping conditions by using barley leachate according to claim 1, wherein the barley leachate comprises:
the soaking time is not less than 12 h.
4. The method for cultivating strong pepper seedlings under continuous cropping conditions by using barley leachate according to claim 1, wherein the barley leachate comprises:
the filtration adopts gauze filtration or membrane filtration or vacuum filtration.
5. The method for cultivating strong pepper seedlings under continuous cropping conditions by using barley leachate according to claim 1, wherein the barley leachate comprises:
the root irrigation frequency is 1 time every two days, each pepper seedling is 20mL, and the root irrigation time is 20 days.
6. The method for cultivating strong pepper seedlings under continuous cropping conditions by using the barley leaching solution as claimed in claim 1, wherein the barley stem and leaf powder is prepared by the following steps:
s1: picking fresh barley, separating stem leaves and roots of the barley, and cleaning the stem leaves of the barley for later use to obtain the standby stem leaves of the barley;
s2: de-enzyming the standby barley stems and leaves by using a heating device to obtain de-enzymed barley stems and leaves;
s3: drying the de-enzymed barley stems and leaves by using a drying device to obtain dried barley stems and leaves;
s4: and (3) crushing the dried barley stems and leaves by using a crusher to obtain barley stem and leaf powder.
7. The method for cultivating strong pepper seedlings under continuous cropping conditions by using the barley leachate according to claim 6, wherein the barley leachate comprises:
the heating device is an oven or a plant water-removing machine;
the water-removing temperature is 100-150 ℃, and the water-removing time is not less than 10 min.
8. The method for cultivating strong pepper seedlings under continuous cropping conditions by using the barley leachate according to claim 6, wherein the barley leachate comprises:
the drying device is one of a constant-temperature drying oven, a vacuum drying oven and a steam drying oven;
the drying temperature is 50-80 ℃, and the drying time is more than 0.5 h.
9. The method for cultivating strong pepper seedlings under continuous cropping conditions by using the barley leachate according to claim 6, wherein the barley leachate comprises:
the material outlet of the pulverizer is provided with a 200-mesh sieve, and the material is automatically sieved after being pulverized.
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