CN111903458A - Chinese chive and Chinese chive maggot prevention and treatment method - Google Patents
Chinese chive and Chinese chive maggot prevention and treatment method Download PDFInfo
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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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/35—Bulbs; Alliums, e.g. onions or leeks
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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
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0268—Mats or sheets, e.g. nets or fabrics
- A01G13/0275—Films
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Abstract
The invention provides a method for preventing and controlling Chinese chive and Chinese chive maggots, which comprises the following steps: cutting off and airing the Chinese chives; covering a film and pressing soil to raise the temperature of the soil under the film; removing soil and uncovering the film; watering and fertilizing; in the step of mulching and soil compacting, the temperature of soil under the film is ensured to reach more than 40 ℃ and last for more than 4 hours, so that the Chinese chive maggots are killed. Solves the problems of slow speed and slow effect in the existing method for preventing and controlling the Chinese chive maggots. According to the method for preventing and controlling the Chinese chive maggots, the soil temperature is increased and the soil humidity is maintained in a film covering mode, so that an environment which is not beneficial to growth and development of the Chinese chive maggots is created, the Chinese chive maggots are further killed, meanwhile, the Chinese chives keep activity, and the environment is timely restored, so that the survival rate of the Chinese chives is guaranteed; the method also has the advantages of low operation cost, convenient implementation and environmental protection.
Description
Technical Field
The invention belongs to the technical field of chive maggot treatment, and particularly relates to a method for preventing and controlling chive maggots.
Background
Leek, another name: plumping, grass-bushy, herba Cynomorii, lazy vegetable, long-growing leek, ZHUANGYANGCAO, and Flat vegetable; belongs to a perennial herb plant of Liliaceae, has special strong smell, horizontal rhizome, narrow and conical bulb, and fasciculation; scaly brown skin, reticular fiber; leaf-based raw, strip-shaped and flat; umbelliform inflorescence, terminal growth. The leaves, scape and flowers are all eaten as vegetables; the seeds can be used as a medicine and have the effects of tonifying the kidney, invigorating the stomach, refreshing, suppressing sweating, inducing astringency and the like. In traditional Chinese medicine, leek is called as 'intestinal lavage grass'.
The leeks have strong adaptability, are cold-resistant and heat-resistant, are cultivated everywhere in China, can be produced throughout the year in many regions in the south, and even though the overground part of the leeks in the north is withered, the underground part enters the dormancy, and the leeks germinate and grow after the surface soil is unfrozen in spring.
Generally, the cultivation of the Chinese chives is carried out in the open air, and after the Chinese chives are planted in a large area for 2-3 years, insect pests will appear in the Chinese chives planting field, wherein the bradysia odoriphaga is an important pest of vegetables such as allium sativum and garlic, the bradysia odoriphaga is particularly favored by the Chinese chives, and larvae of the bradysia odoriphaga are commonly called as Chinese chive maggots, and the bradysia odoriphaga is one of main reasons for causing the yield reduction and the standard exceeding of pesticide residues.
The bradysia odoriphaga is in the insect state of imago, egg, larva and pupa, and is damaged by the bulb and tender stem of the larva gathering in the underground part of the bradysia odoriphaga. The larva which is hatched first harms the base of the leek leaf sheath and the upper end of the bulb. The young stems of the Chinese chives are mainly damaged in spring and autumn to cause rottenness, so that the Chinese chives are withered and yellow to die. In summer, the larva moves downwards to eat the bulb, the heavy bulb is rotten, and the whole mound of Chinese chives is dead.
For preventing and treating the harm of Chinese chive maggots to Chinese chives, 3911 pesticides, namely phorate, are usually adopted, and the 3911 pesticides are high in speed and good in effect of killing the Chinese chive maggots, but the 3911 pesticides are highly toxic organic pesticides and are forbidden to be used at present. Other methods for preventing and controlling the Chinese chive maggots, such as methods of variety improvement, cleaning planting land, ozone killing, color plate placement and the like, have the problems of low speed and incapability of realizing instant effect.
Disclosure of Invention
The invention aims to provide a Chinese chive maggot control method, which solves the problems of low speed and slow effect in the existing Chinese chive maggot control method.
The technical scheme adopted by the invention is as follows:
a method for preventing and treating chive and Chinese chive maggots comprises the following steps:
cutting off and airing the Chinese chives;
covering a film and pressing soil to raise the temperature of the soil under the film;
removing soil and uncovering the film;
watering and fertilizing;
in the step of mulching and soil compacting, the temperature of soil under the film is ensured to reach more than 40 ℃ and last for more than 4 hours, so that the Chinese chive maggots are killed.
The method for preventing and controlling the Chinese chive maggots has the advantages of simple required equipment and low use cost; the killing effect is good, the killing speed is high, and the effect is immediate; simple operation, convenient study and easy popularization.
Optionally, the step of cutting off the leeks and airing comprises:
when the Chinese chives are cut off, the Chinese chives stubbles are parallel to the ground;
cutting off the Chinese chives and then airing for 2-3 hours.
Optionally, the step of cutting off the leeks and airing comprises:
and (5) airing to heal the chives stubbles so as to reduce the rotting rate of the roots of the chives in the film covering process.
Optionally, in the step of covering the membrane and compacting the soil, the membrane covering time is 8-10 hours.
Optionally, in the step of covering the film and pressing the soil, measuring the temperature of the soil under the film after covering the film for 2-3 hours, starting to calculate the effective film covering time when the temperature of the soil 5-8 cm under the film is above 40 ℃, and removing the soil and uncovering the film when the effective film covering time reaches more than 4 hours.
Alternatively, the sub-membrane soil temperature is measured at irregular intervals after the effective membrane covering time is calculated.
Optionally, in the step of covering the membrane and pressing the soil, the thin film is a light blue non-dropping film of 0.1 mm.
Optionally, in the step of mulching and compacting, the outer edge of the film is 30-50 cm beyond the outer edge of the planting field.
Alternatively, in the step of watering and fertilizing, the watering and the urea applying are carried out after 8-12 hours of film uncovering.
Alternatively, the urea is applied in an amount of 0.21-042 kg/m.
The invention has the beneficial effects that:
1. according to the method for preventing and controlling the Chinese chive maggots, the soil temperature is increased and the soil humidity is kept in a film covering mode, so that an environment which is not beneficial to growth and development of the Chinese chive maggots is created, the Chinese chive maggots are further killed, meanwhile, the Chinese chives keep activity, and the environment is timely restored, so that the survival rate of the Chinese chives is guaranteed; the method also has the advantages of low operation cost, convenient implementation and environmental protection.
2. Compared with a pesticide killing method, the method has the advantages of high speed, instant effect and no pesticide residue, and potential safety hazard caused by pesticide residue is avoided; the whole planting field is covered by the mulching film, so that the problem that part of Chinese chive maggots survive due to uneven pesticide spraying is solved; the problem of the improvement of the drug resistance of the Chinese chive maggots caused by selecting the Chinese chive maggots by pesticides is solved. In addition, the investment of economic cost and labor cost such as pesticide purchase, configuration, spraying and the like is saved, the labor intensity is reduced, and the cost is saved.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.
FIG. 1 is a flow chart of a method for preventing and controlling Chinese chive maggots.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
It should be understood that specific details are provided in the following description to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known processes, structures and techniques may be shown without unnecessary detail in order to avoid obscuring example embodiments.
The invention is further described with reference to the following figures and specific embodiments.
Example 1:
as shown in fig. 1, the method for preventing and controlling Chinese chive maggots of the embodiment comprises the following steps:
cutting off and airing the Chinese chives;
covering a film and pressing soil to raise the temperature of the soil under the film;
removing soil and uncovering the film;
watering and fertilizing;
and the soil under the film is dried after being covered with the film and pressed, the temperature of the soil under the film reaches more than 40 ℃, and the soil is kept for more than 4 hours so as to kill the Chinese chive maggots.
For preventing and treating the harm of Chinese chive maggots to Chinese chives, 3911 pesticides, namely phorate, are usually adopted, and the 3911 pesticides are high in speed and good in effect of killing the Chinese chive maggots, but the 3911 pesticides are highly toxic organic pesticides and are forbidden to be used at present. Other methods for preventing and controlling the Chinese chive maggots, such as methods of variety improvement, cleaning planting land, ozone killing, color plate placement and the like, have the problems of low speed and incapability of realizing instant effect.
The problems of high labor intensity and high labor cost exist for killing maggots by pesticides, and furthermore, the Chinese chive maggots are easy to generate drug resistance, and the hidden trouble of poor long-term use effect exists; the residue of pesticide is harmful to the edible safety and has potential safety hazard. Meanwhile, in the pesticide spraying process, the problem of uneven pesticide application exists, all Chinese chive maggots cannot be effectively killed, and the harm of the Chinese chive maggots is repeated.
The method is established on the basis of the biological characteristics of the Chinese chive maggots, namely the Chinese chive maggots are sensitive to the humidity of the environment, the optimum survival humidity is between 60 and 80 percent, and the host immediately climbs away from the host when the humidity of the host is too high and does not take food; the optimum climatic conditions for the development of the Chinese chive maggots are that the temperature is 18-25 ℃, the water content of soil is 5-20 percent, but the high temperature resistance, the drought resistance and the rainstorm resistance are weak. The young Chinese chive maggots like to take food at the stem base and the pseudostem of the Chinese chive, while the old Chinese chive maggots like to live in the soil. Although adult insects prefer a humid environment, adult insects cannot survive when the humidity is greater than 70%.
According to the habit of the Chinese chive maggots, the humidity can be increased by increasing the soil water content, so that the Chinese chive maggots can climb away from the Chinese chive immediately and do not take food any more, but the method has the problems that the Chinese chive maggots cannot be killed immediately, the Chinese chive maggots can still survive after finding the food, the Chinese chive maggots return after the soil water content is reduced, the harm of the Chinese chive maggots is repeated, and the investment of economic cost and labor cost is increased.
Therefore, the characteristics of weak high-temperature resistance of the Chinese chive maggots can be utilized for prevention and treatment, and the soil temperature of the Chinese chive planting field is increased to keep the Chinese chive planting field at a higher temperature for a period of time so as to kill the Chinese chive maggots.
Particularly, the Chinese chives are cut and then aired to heal the Chinese chives stubbles, and meanwhile, the Chinese chives are prevented from puncturing the film; after airing, the leek planting land is covered by the film, soil moisture in the film coverage range is slowly evaporated under the action of sunlight, soil humidity is kept, soil temperature is raised, and the soil temperature is kept at a high temperature for a period of time, so that the leek maggots can not be killed due to the fact that the leek maggots can not adapt to the high temperature.
Table 1: chinese chive maggot death condition statistical table for different time of film covering
Unit: head with a rotatable shaft
Referring to table 1, when the soil temperature reaches more than 40 ℃, the chive maggots die gradually along with the increase of the duration time; after lasting for more than 4 hours, the Chinese chive maggots can be thoroughly killed.
Meanwhile, the roots of the Chinese chives still keep activity, the soil temperature is timely reduced, water is added to supplement moisture and fertilizer, the survival rate of the Chinese chives after high-temperature film covering is ensured, and therefore watering and fertilizing are carried out after soil is removed and films are uncovered.
According to the method for preventing and controlling the Chinese chive maggots, the soil temperature is increased and the soil humidity is kept in a film covering mode, so that an environment which is not beneficial to growth and development of the Chinese chive maggots is created, the Chinese chive maggots are further killed, meanwhile, the Chinese chives keep activity, and the environment is timely restored, so that the survival rate of the Chinese chives is guaranteed; the method also has the advantages of low operation cost, convenient implementation and environmental protection.
Compared with a pesticide killing method, the method has the advantages of high speed, instant effect and no pesticide residue, and potential safety hazard caused by pesticide residue is avoided; the whole planting field is covered by the mulching film, so that the problem that part of Chinese chive maggots survive due to uneven pesticide spraying is solved; the problem of the improvement of the drug resistance of the Chinese chive maggots caused by selecting the Chinese chive maggots by pesticides is solved. In addition, the investment of economic cost and labor cost such as pesticide purchase, configuration, spraying and the like is saved, the labor intensity is reduced, and the cost is saved.
Preferably, the operation of cutting off and airing the Chinese chives and coating the film is performed in a clear weather, and the sun light is used for heating, so that natural resources are fully utilized, the investment of heating cost is reduced, the labor amount is effectively reduced, and the labor burden is reduced.
In the specific embodiment provided by the present disclosure, as an option, the steps of cutting off the leeks and airing are as follows:
when the Chinese chives are cut off, the Chinese chives stubbles are parallel to the ground;
cutting off the Chinese chives and then airing for 2-3 hours.
Now, the chives are cut and dried in the air in the step, wherein in view of the small thickness of the film, the chives are cut before the film is coated to reduce the height of the chives in order to avoid the chives from being punctured by the film. The stubble of the Chinese chives is kept parallel to the ground, so that the stubble of the Chinese chives is ensured to be at the same height, the local protrusion is avoided, the thin film is prevented from being punctured, the thin film is prevented from being damaged, and the service life of the thin film is favorably ensured; if the leeks are not cut, the film is in a high-temperature environment under the film in the film covering process, and the survival rate of the leeks is influenced by overhigh temperature and overhigh humidity of the film contacting the leeks.
Preferably, the height of the stubble of leek is, as an option, flush with the ground. The chives are cut and then aired, and the airing is helpful for healing the chives stubbles.
Preferably, as an option, the step of cutting off the leeks and airing:
and (5) airing to heal the chives stubbles so as to reduce the rotting rate of the roots of the chives in the film covering process.
The film is covered after the wound of the chive stubbles is healed, the survival rate of the chives is ensured, and the rottenness of the roots of the chives is avoided.
In the embodiments provided in this disclosure, the step of coating the soil in the soil compacting is optionally carried out for a coating time of 8 to 10 hours.
Supplementing the soil compacting by coating, wherein the airing time after coating is determined according to the weather, for example, the outdoor temperature is high, if the highest temperature is higher than 30 ℃, the coating time is short, but 8 hours of airing needs to be ensured, and the effective coating time is ensured to be more than 4 hours; in combination with practical use, the time for growing and larval Chinese chive maggots is from 6 middle to 8 last months, and the outdoor temperature is higher in summer, so that the effective film covering time can be ensured to be more than 4 hours. And the film coating time is relatively short, and the film coating treatment can be completed within 12 hours.
Preferably, in the step of covering the film and pressing the soil, measuring the temperature of the soil under the film after covering the film for 2-3 hours, starting to calculate the effective film covering time when the temperature of the soil 5-8 cm below the film is above 40 ℃, and removing the soil and uncovering the film when the effective film covering time reaches more than 4 hours.
The film covering time can be divided into effective film covering time and other time, wherein the effective film covering time refers to the film covering time when the temperature of the soil under the film is more than 40 ℃ at a position 5-8 cm away from the film; the rest of the time is the portion of the coating time excluding the effective coating time.
For the method, effective killing of the Chinese chive maggots needs to ensure that the effective film covering time is more than 4 hours.
For most Chinese chive maggots, the living area of the Chinese chive maggots is 3-6 cm below the soil, so that the soil temperature is measured according to the position 3-6 cm below the soil, and the high temperature of the Chinese chive maggots is ensured.
More preferably, as an option, the sub-membrane soil temperature is measured at irregular intervals after the effective membrane covering time has begun to be calculated. The effectiveness of effective film covering time is ensured through irregular random measurement, and the killing rate of the Chinese chive maggots is ensured.
In the specific embodiment provided by the present disclosure, as an option, in the step of coating the soil, the thin film is a 0.1 mm light blue non-drop film.
The step of film covering and soil compacting are supplemented, wherein in a 0.1 mm light blue non-drop film, the light blue light transmittance is good, the energy loss of sunlight penetrating through the film is reduced, meanwhile, the non-drop film does not generate water mist, and the water mist is prevented from reflecting the sunlight.
Preferably, as an option, the step of mulching is compacting the soil with the outer edge of the film extending 30-50 cm beyond the outer edge of the planting area. The area of the film is larger than that of the planting field, so that the film is ensured to cover the whole planting field, further all Chinese chive maggots are killed, and the survival probability of the Chinese chive maggots is reduced.
In the specific embodiment provided by the present disclosure, as an option, in the step of watering and fertilizing, the film is uncovered for 8-12 hours, and then watering and urea applying are carried out.
The steps of watering and fertilizing are supplemented, wherein the high-temperature environment created by the mulching is harmful to the growth of the chive stubbles, but the chive stubbles can still keep activity relative to the chive maggots, so that the environmental conditions of the planting field are recovered after soil removal and film uncovering.
The natural cooling is ensured for a period of time before watering, so that the damage of hotness and cold shrinkage caused by severe temperature reduction to the activity of the Chinese chive stubbles is avoided, and the survival rate of the Chinese chive stubbles is ensured.
And urea is applied while watering, so that the fertility of the planting field is increased, the growth requirement of the stubble of the Chinese chives is met, and the quick growth of the stubble of the Chinese chives is ensured.
Preferably, the urea is applied in an amount of 0.21-042 kg/m, as an option.
Example 2:
in this example, the actual use of the method for controlling Chinese chive maggots will be described based on example 1.
One leek field which has been planted for three years and has the leek maggot harm is selected as a test field, and through measurement, the test field is sandy loam, moderate in fertility, convenient to drain and irrigate, and the pH value of soil is 6.0-6.8.
The test fields are divided into four areas to carry out comparison experiments without repetition, wherein three test fields carry out the test groups according to the Chinese chive maggot control method, and the rest test field is the control group without film covering treatment.
Wherein, the treatment 1: and on 8 months and 14 days, cutting off the Chinese chives 8 times earlier, airing for 24 hours, laminating at 8 times next day, and removing soil and uncovering the film after laminating for 10 hours.
And (3) treatment 2: cutting off the leeks at 7 nights after 8 months and 14 days, airing for 12 hours, laminating at 8 points on the next day, removing soil and uncovering the film after laminating for 10 hours.
And (3) treatment: and (4) cutting off the Chinese chives 7 th earlier, airing for 2 hours in 8 months and 14 days, coating films 9-10 th earlier, and removing soil and uncovering the films 8-9 hours later.
And (4) treatment: and (4) cutting off the Chinese chives 8 months earlier on 14 days after 8 months without performing film coating treatment.
Wherein, the Chinese chive maggots in the step 4 are killed and killed in advance; in the treatment 1-4, the chives are cut off on the same day; measuring the outdoor temperature during film covering to determine the influence of the outdoor temperature on the temperature of soil under the film to reach 40 ℃; calculating effective film covering time after the temperature of the soil under the film reaches 40 ℃; after soil is removed and the film is uncovered, soil near the roots of the Chinese chives is planed randomly to check the survival condition of the Chinese chives maggots.
TABLE 2 statistical table of the growth of Chinese chives after different film-coating treatments
TABLE 3 statistical table of death conditions of Chinese chive maggots after different film covering treatments
Unit: head with a rotatable shaft
TABLE 4 statistical table of Chinese chives yield after different film-coating treatments
Unit: kg of
As can be seen from tables 2 to 4, the growth condition, the death condition and the yield condition of the chives under different film covering treatments are observed and analyzed to obtain:
firstly, the film covering treatment has no damage to the root system of the Chinese chives, the early growth is slow, the later growth speed is accelerated, and compared with the contrast, the Chinese chives after the film covering prevention and control of the Chinese chives maggots have vigorous growth vigor, dark green leaf color, strong tillering force, wide and thick leaves and thick leaf sheaths.
Secondly, new buds grow after 37 days of treatment, the height of the Chinese chives is not obviously different after 25 days compared with that of a control group, and the Chinese chives are harvested at the same time after 35 days; and (4) treating for 1 and 2, wherein new buds grow after 25 days, and harvesting after 41 days.
And thirdly, harvesting two crops of the Chinese chives after the film covering treatment, wherein compared with a control group, the yield of the treatment 3 is not greatly different from that of the control group, and the yield of the treatment 1 is different from that of the treatment 2 by 49kg and 74kg respectively.
Fourthly, after film covering treatment, the Chinese chive maggots die after the film is uncovered, all the Chinese chive maggots die after 14 days, no pesticide is used, and the quality and the safety of the Chinese chives are guaranteed to the maximum extent.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.
Claims (10)
1. The method for preventing and controlling the Chinese chive maggots is characterized by comprising the following steps of:
cutting off and airing the Chinese chives;
covering a film and pressing soil to raise the temperature of the soil under the film;
removing soil and uncovering the film;
watering and fertilizing;
in the step of mulching and soil compacting, the temperature of soil under the film is ensured to reach more than 40 ℃ and last for more than 4 hours, so that the Chinese chive maggots are killed.
2. The method for preventing and treating leek maggots of claim 1, wherein the steps of cutting off leeks and airing are as follows:
when the Chinese chives are cut off, the Chinese chives stubbles are parallel to the ground;
cutting off the Chinese chives and then airing for 2-3 hours.
3. The method for preventing and treating leek maggots of claim 1, wherein the steps of cutting off leeks and airing are as follows:
and (5) airing to heal the chives stubbles so as to reduce the rotting rate of the roots of the chives in the film covering process.
4. The method for controlling leek and Chinese chive maggots according to claim 1, wherein the method comprises the following steps: in the step of covering the membrane and pressing the soil, the membrane covering time is 8-10 hours.
5. The method for controlling leek and Chinese chive maggots according to claim 1, wherein the method comprises the following steps: in the step of covering the film and pressing the soil, measuring the temperature of the soil under the film after covering the film for 2-3 hours, and starting to calculate the effective film covering time when the temperature of the soil 5-8 cm below the film is more than 40 ℃, wherein the effective film covering time is more than 4 hours, and removing the soil and uncovering the film.
6. The method for controlling leek and Chinese chive maggots according to claim 5, wherein the method comprises the following steps: after the effective film covering time is calculated, the soil temperature under the film is measured irregularly.
7. The method for controlling leek and Chinese chive maggots according to claim 1, wherein the method comprises the following steps: in the step of covering the membrane and pressing the soil, a light blue dripless membrane of 0.01 mm is selected as the membrane.
8. The method for controlling leek and Chinese chive maggots according to claim 7, wherein the method comprises the following steps: in the step of film covering and soil compacting, the outer edge of the film exceeds the outer edge of the planting field by 30-50 cm.
9. The method for controlling leek and Chinese chive maggots according to claim 1, wherein the method comprises the following steps: in the step of watering and fertilizing, the film is uncovered for 8-12 hours, and then watering and applying urea.
10. The method for controlling leek and Chinese chive maggots according to claim 9, wherein the method comprises the following steps: the amount of urea applied is 0.21-042 kg/m.
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