CN115211336A - Organic corn production method - Google Patents
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- CN115211336A CN115211336A CN202210894805.XA CN202210894805A CN115211336A CN 115211336 A CN115211336 A CN 115211336A CN 202210894805 A CN202210894805 A CN 202210894805A CN 115211336 A CN115211336 A CN 115211336A
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- 235000005822 corn Nutrition 0.000 title claims abstract description 72
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 238000009333 weeding Methods 0.000 claims abstract description 63
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- PKUBGLYEOAJPEG-UHFFFAOYSA-N physcion Natural products C1=C(C)C=C2C(=O)C3=CC(C)=CC(O)=C3C(=O)C2=C1O PKUBGLYEOAJPEG-UHFFFAOYSA-N 0.000 claims description 9
- 241000193388 Bacillus thuringiensis Species 0.000 claims description 7
- ZSBXGIUJOOQZMP-UHFFFAOYSA-N Isomatrine Natural products C1CCC2CN3C(=O)CCCC3C3C2N1CCC3 ZSBXGIUJOOQZMP-UHFFFAOYSA-N 0.000 claims description 7
- ZSBXGIUJOOQZMP-JLNYLFASSA-N Matrine Chemical compound C1CC[C@H]2CN3C(=O)CCC[C@@H]3[C@@H]3[C@H]2N1CCC3 ZSBXGIUJOOQZMP-JLNYLFASSA-N 0.000 claims description 7
- VQXSOUPNOZTNAI-UHFFFAOYSA-N Pyrethrin I Natural products CC(=CC1CC1C(=O)OC2CC(=O)C(=C2C)CC=C/C=C)C VQXSOUPNOZTNAI-UHFFFAOYSA-N 0.000 claims description 7
- 229940097012 bacillus thuringiensis Drugs 0.000 claims description 7
- 229930014456 matrine Natural products 0.000 claims description 7
- HYJYGLGUBUDSLJ-UHFFFAOYSA-N pyrethrin Natural products CCC(=O)OC1CC(=C)C2CC3OC3(C)C2C2OC(=O)C(=C)C12 HYJYGLGUBUDSLJ-UHFFFAOYSA-N 0.000 claims description 7
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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
- A01G22/20—Cereals
-
- 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
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Abstract
The invention provides a production method of organic corn, belonging to the technical field of crop cultivation. The organic corn production method comprises the steps of weeding in a one-Mongolia two-rotation three-intelligent four-intertillage mode, wherein the seedling injury rate is less than 3%, the weed removal rate is more than 90%, the problem of difficulty in weeding in the organic corn production process is effectively solved, and the weeding cost is reduced; the production process of the organic corn also comprises the step of using biological source pesticide to prevent and control plant diseases and insect pests, the produced corn has no pesticide residue, does not contain heavy metal, accords with organic standards, and can realize large-area organic land conversion on the basis of promoting land scale operation.
Description
Technical Field
The invention belongs to the technical field of crop cultivation, and particularly relates to an organic corn production method.
Background
In organic agricultural production, chemical herbicides are prohibited to be used for controlling weeds, chemical input products such as chemical fertilizers, pesticides, herbicides, growth regulators and the like are not used in the production process, animal manure and green manure are mainly used for maintaining soil fertility, and harmful organisms such as weeds are controlled by a method harmless to the environment. In recent years, organic farming has been used in more than 130 countries, and the area of organic farming has been expanded year by year and developed more rapidly.
Farmland weeds are used as a component of a farmland ecosystem and are the result of long-term adaptation to factors such as climate and soil, competition with crops and the like. Weeds are often a major threat in organic agricultural production and also an important limiting bottleneck for increasing the yield of sustainable organic plants. Relevant researches show that organic agriculture is beneficial to farmland weed growth, and compared with conventional farmlands, the species and the quantity of the organic farmland weeds are relatively high. It has also been shown that weed density, biomass or ground cover is generally higher in organic farmed fields than in conventional field systems. In addition, the organic agriculture also can increase the abundance of weed communities in farmlands and protect some endangered and rare weed species, thereby enriching and realizing the ecological function of the weed communities. The weed damage on a global scale can reduce the yield of potential crops by about 34%, while under the organic farming systems, the use of agricultural chemicals is prohibited, and the yield reduction is more serious in addition to the relatively large number and variety of weed populations in organic farmlands.
Corn is the first major food crop in China, but the quality of corn in the current market is not high, and the corn cannot meet the requirements of users. The organic corn is the main direction for planting corn in the future, the core of the organic corn is to establish and restore the virtuous circle of an agricultural ecosystem so as to maintain the sustainable development of agriculture, and in the cultivation of the organic corn, the prevention and control of diseases, insect pests and weeds must meet the requirements of organic production.
Disclosure of Invention
In view of this, the invention aims to provide an organic corn production method, which carries out weeding in a one-Mongolia two-rotation three-intelligent four-intertillage mode and effectively solves the problem of difficult weeding in the organic corn production process.
In order to achieve the above purpose, the invention provides the following technical scheme:
an organic corn production method comprises weeding in a one-Mongolia two-cyclone three-intelligent four-intertillage mode: the first element comprises: working at the time when the corn is about to emerge, and covering the unearthed weeds with the thickness of 2-3 cm; the "two-turn" includes: carrying out the first rotary weeding operation from the germination to the emergence of the corn, and carrying out the rotary weeding operation again within 10-20cm after the emergence of the corn; the "three intelligence" includes: during the corn plant height of 10-20cm, removing inter-row grass and inter-plant grass by using an intelligent weeding machine with a seedling belt automatic identification function; the four intertillage comprises: when the height of the corn plant reaches more than 15cm, intertillage and plough clamping operation is carried out, and the depth of the planted corn plant is 4-6cm.
Preferably, during the first covering, the double-rod deep loosening of the furrows is carried out, wherein the penetration depth of a front rod is more than 25cm, and the penetration depth of a rear rod is more than 30 cm; the ridge is provided with a single rod ruler, and the depth of the ridge in the soil is 7-9cm.
Preferably, the rotary weeding operation is carried out for 2 to 3 times at a speed of 7 to 9km/h.
Preferably, the intelligent weeding machine is provided with a duck palm ploughshare and a wing-shaped ruler, and the soil penetration depth is 3-5cm.
More preferably, the intelligent weeding machine operates at a speed of 7-9km/h.
Preferably, when the intertillage double-layered plough works, two single-wing rulers or single-rod rulers are additionally arranged in the middle of the seedling zone and provided with swallow tail wings, the distance between the two single-wing rulers and the seedling zone is 4-6cm, and the depth of the inserted soil is 4-6cm; single wing rulers are additionally arranged on two sides of the furrow and are 4-6cm away from the seedling zone, a deep loosening rod ruler is arranged at the front end of the furrow, and a soil covering ploughshare is arranged at the rear end of the furrow for intertillage.
Preferably, the method further comprises disease control, wherein the disease control comprises the following steps: spraying carvacrol and physcion on the leaf surfaces at the initial stage of a large flare-out period and the initial stage of a heading period.
More preferably, the carvacrol is a 1% water aqua, and the spraying amount is 55-88 mL/mu; the physcion is 0.5% aqueous solution, and the spraying amount is 90-120 ml/mu.
Preferably, further comprising pest control, the pest control comprising: spraying pyrethrin, matrine or Bacillus thuringiensis in field.
More preferably, the pyrethrin is 1.5% aqueous emulsion, and the spraying amount is 120-160 ml/mu; the matrine is 0.6% aqua, and the spraying amount is 80-120 mL/mu; the bacillus thuringiensis is wettable powder, and the spraying amount is 80-100 g/mu.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an organic corn production method, which is used for weeding in a one-Mongolia two-rotation three-intelligent four-intertillage mode, wherein the seedling injury rate is less than 3%, the weed removal rate is more than 90%, and the problem of difficulty in weeding in the organic corn production process is effectively solved. The mechanical weeding operation cost of 'one Mongolian two-rotation three-intelligent four-intertillage' is 30 yuan per mu, compared with 240 yuan of manual weeding cost, the mechanical weeding operation cost can be saved by 210 yuan per mu, the weeding cost is greatly reduced, and a strong scientific and technological support is provided for large-area development of organic food bases
The organic corn production method provided by the invention comprises organic pest control besides organic weeding, and the produced corn has no pesticide residue, contains no heavy metal and meets the organic standard. On the basis of promoting land scale management, large-area organic land conversion can be realized, scientific agriculture, green agriculture, brand agriculture and quality agriculture are realized, and more than 6.4 ten thousand mu is successfully achieved by 2021.
Detailed Description
The invention provides an organic corn production method, which comprises the following steps of weeding in a one-Mongolia two-cyclone three-intelligent four-intertillage mode: the first element comprises: working at the time when the corn is about to emerge, and covering the unearthed weeds with the thickness of 2-3 cm; the "two-turn" includes: carrying out the first rotary weeding operation from the germination to the emergence of the corn, and carrying out the rotary weeding operation again within 10-20cm after the emergence of the corn; the "three intelligence" includes: during the period that the height of the corn plants is 10-20cm, removing inter-row grass and inter-plant grass by using an intelligent weeding machine with a seedling belt automatic identification function; the four intertillage comprises: when the height of the corn plant reaches more than 15cm, intertillage and plough operation is carried out, and the depth of the corn plant is 4-6cm.
The invention preferably performs double-rod deep scarification of the furrow in the first covering process, wherein the depth of the front rod is more than 25cm, and the depth of the rear rod is more than 30 cm. Preferably, the ridge is provided with a single rod ruler, and the depth of the soil is 7-9cm, and further preferably 8cm.
According to the invention, a square land leveler is preferably additionally arranged at the rear part of the deep loosening machine, two land levelers are respectively arranged at two ridges, the head covering machine is used for working, the working area of each land leveler can be 500 mu per day, deep loosening and cold relief are realized, and the weed control rate is more than 90%.
When the invention prefers the second rotation, the rotation weeding operation is carried out for 2-3 times, the operation speed is 7-9km/h, further prefers the operation speed to be 8km/h, and the weeding device can be adjusted on the spot according to the field condition, and the weeding rate is more than 90%.
The intelligent weeding machine used by the invention is provided with the automatic seedling belt recognition function, and even if the tractor runs and deviates during weeding operation or the seedling belt is bent during planting, the deviation of the weeding mechanism can be automatically adjusted, so that seedling injury is prevented. As an implementation mode, the intelligent weeding machine is a Raken 12-row weeding machine. Each worker works 500 mu each day, row inter-grass and plant inter-grass can be effectively removed in the working process, and the weed removal rate can reach more than 90%.
The invention preferably selects the intelligent weeding machine to be provided with the duck foot ploughshare and the wing ruler, the penetration depth is 3-5cm, and the further selection is 4cm; the working speed is preferably 7 to 9km/h, more preferably 8km/h.
When the intertillage double-layered plough is preferably selected for operation, two single-wing rulers or single-rod rulers with swallow tail wings are additionally arranged in the middle of the seedling zone and are 4-6cm, more preferably 5cm, and the depth of the embedded soil is 4-6cm, more preferably 5cm; preferably, single wing rulers are additionally arranged on two sides of the furrow, the distance between the single wing rulers and the seedling zone is 4-6cm, more preferably 5cm, the front end of the furrow is provided with a deep loosening rod ruler, and the rear end of the furrow is provided with a soil covering ploughshare for intertillage. When in intertillage and plough clamping operation, the seedling is not pressed, buried and stuck, the seedling damage rate is less than 3 percent, and the weed removal rate is more than 90 percent.
The method for producing organic corn of the present invention further comprises disease control, preferably disease control comprising: spraying carvacrol and physcion on the leaf surfaces at the initial stage of a large trumpet mouth period and the initial stage of a heading period; further preferably, the carvacrol is a 1% water aqua, and the spraying amount is 58-88 mL/mu, more preferably 80 mL/mu; the physcion is 0.5% water aqua, and the spraying amount is 90-120 mL/mu, more preferably 100 mL/mu.
The organic corn production method of the invention further comprises pest control, and preferably the pest control comprises: spraying pyrethrin or matrine or Bacillus thuringiensis in field; further preferably, the pyrethrin is 1.5% aqueous emulsion, and the spraying amount is 120-160 mL/mu, more preferably 140 mL/mu; the matrine is 0.6% aqueous solution, and the spraying amount is 80-120 mL/mu, more preferably 100 mL/mu; the bacillus thuringiensis is wettable powder, and the spraying amount is 80-100 g/mu, and more preferably 80 g/mu; more preferably diluted 500 times for spraying.
After the organic weeding and the pest control, the corn is harvested after the corn is mature, china center for quality certification is entrusted to analyze, and the analysis results are shown in Table 1:
TABLE 1 quality certification analysis results of organic maize of the invention
Table 2 attached table of parameter information
The technical solutions provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.
Example 1
A method for producing organic corn comprises the following steps:
selecting and planning a base, selecting varieties, planting, managing soil and applying fertilizer according to an organic standard, and performing field management:
(1) Controlling the weeds:
"one covering": deep scarification and Mongolia head compound operation (5 and 18 days-5 and 23 days)
The corn is operated in a time slot about to emerge, the covering operation is stopped after the emergence of the corn, the thickness of the upper soil is 2.5cm, weeds just emerging are covered, a single-rod ruler is used on a ridge, and a square land leveler is matched; deep scarification is carried out with the purposes of deep scarification, spring cold release, ground temperature increase and bottom soil moisture preservation, a front rod ruler and a rear rod ruler are provided, the depth of penetration of the front rod ruler is more than 25cm, the depth of penetration of the rear rod ruler is more than 30cm, the width of the tip of the rear rod ruler is more than 6cm, the depth of penetration of each row is consistent, the error is less than +/-1 cm, soil moisture is not deflected, sticky strips are not generated, and the thickness of the soil of a ridge and furrow base is more than 5cm after scarification; a ridge platform (the middle of a seedling zone) is provided with a single-rod ruler, the width of the ruler tip is not less than 8cm, and the soil penetration depth is 8cm;
the second rotation is as follows: weeding and scarifying machine (rotating hoe) (5-6-10 days)
Performing the first operation in the time period from germination of the corn to just emergence of the corn, and performing rotary weeding for a plurality of times within 10cm after emergence of the corn for 2 times at the operation speed of 8km/h; the weeding scarifier can work, and each weeding scarifier can work 800 mu each day; the soil loosening and weeding are realized through operation, and the weed control rate reaches over 90 percent;
"three intelligence": intelligent weeder (5 month 25 days-6 month 10 days)
When the height of the corn plant reaches 10-20cm, the machine is provided with an automatic seedling belt identification function, so that even if the tractor runs and deviates during weeding operation or the seedling belt is bent during planting, the deviation of a weeding mechanism can be automatically adjusted, and the seedling is prevented from being injured; the operation speed is 8km/h, a duck foot ploughshare and a wing-shaped ruler are arranged, the soil penetration depth is 4cm, and the weeding and soil loosening part is adjusted on site according to the actual field condition; the seedling injury rate is less than 3 percent, and the weed removal rate is more than 90 percent;
four intertillage: intertill clamp plough (6 month 15 days-6 month 25 days)
When the height of the corn plant is more than 15cm, additionally arranging two single-wing rulers in the middle of a seedling zone of an intertillage clamp plough, wherein the distance between the two single-wing rulers and the seedling zone is 5cm, or adopting a single-rod ruler with swallow tail wings, and the depth of the corn plant into the soil is 5cm; single-wing rulers are additionally arranged on two sides of each furrow and are 5cm away from the seedling zone, deep loosening rod rulers are arranged at the front ends of the furrows, and soil covering ploughshares are arranged at the rear ends of the furrows for intertillage, topdressing and ridging; each weed removing machine can operate for 500 mu each day, and can effectively remove over 90 percent of weeds;
(2) Disease prevention and control:
respectively spraying 80 mL/mu of 1% carvacrol aqua and 100 mL/mu of 0.5% physcion aqua at the initial stage of a large trumpet mouth period and the initial stage of castration to carry out leaf surface spraying to prevent and control the corn northern leaf blight;
(3) Insect pest prevention and control:
spraying 0.6% matrine aqueous solution 100 mL/mu, and spraying on leaf surface to prevent and treat corn pest.
Example 2
A method for producing organic corn comprises the following steps:
selecting and planning a base, selecting varieties, planting, managing soil and applying fertilizer according to an organic standard, and performing field management:
(1) Controlling the weeds:
"first covering": deep scarification Meng head compound operation (5 and 18 days-5 and 23 days)
The operation is carried out in the time period of the corn to be unearthed, the operation of covering the head of the corn after the corn seedlings are unearthed is stopped, the thickness of the upper soil is 2cm, the weeds which are just unearthed are covered, a single-rod ruler is used on the ridge, and a square land leveler is arranged; deep scarification is carried out with the purposes of deep scarification, spring cold release, ground temperature increase and bottom soil moisture preservation, a front rod ruler and a rear rod ruler are provided, the depth of penetration of the front rod ruler is more than 25cm, the depth of penetration of the rear rod ruler is more than 30cm, the width of the tip of the rear rod ruler is more than 6cm, the depth of penetration of each row is consistent, the error is less than +/-1 cm, soil moisture is not deflected, sticky strips are not generated, and the thickness of the soil of a ridge and furrow base is more than 5cm after scarification; a ridge platform (the middle of a seedling zone) is provided with a single-rod ruler, the width of the ruler tip is not less than 8cm, and the depth of the soil is 7cm;
the second rotation is as follows: weeding and scarifying machine (rotating hoe) operation (5-25-6-10)
Performing first operation in the time period from germination of the corns to emergence of the corns; carrying out rotary weeding for multiple times within 15cm after the corn seedlings emerge, wherein the rotary weeding is carried out for 3 times, and the operation speed is 7km/h; the weeding scarifier can work, and each weeding scarifier can work 800 mu each day; the operation realizes loosening the soil and weeding, and the weed control rate reaches more than 90 percent;
"three intelligence": intelligent weeder (5 month 25 days-6 month 10 days)
The machine is provided with the function of automatically identifying the seedling belt when the height of the corn plant reaches 10-20cm, so that the deviation of the weeding mechanism can be automatically adjusted to prevent the seedling from being damaged even if the tractor deviates during weeding or the seedling belt is bent during planting; the operation speed is 7km/h, a duck foot ploughshare and a wing-shaped ruler are arranged, the soil penetration depth is 3cm, and the weeding and loosening part is adjusted on the spot according to the actual field condition; the seedling injury rate is less than 3 percent, and the weed removal rate is more than 90 percent;
"four intertillage": intertill clamp plough (6 month 15 days-6 month 25 days)
When the height of the corn plant is more than 15cm, additionally arranging two single-wing rulers in the middle of a seedling zone of an intertillage clamp plough, wherein the distance between the two single-wing rulers and the seedling zone is 4cm, or adopting a single-rod ruler with swallow tail wings, and the depth of the corn plant into the soil is 4cm; single-wing rulers are additionally arranged on two sides of each furrow, the distance between each single-wing ruler and a seedling zone is 4cm, a deep digging rod ruler is arranged at the front end of each furrow, and a soil covering ploughshare is arranged at the rear end of each furrow for intertillage, topdressing and ridging; each weed can be worked for 500 mu each day, and over 90 percent of weeds can be effectively removed;
(2) Disease prevention and control:
respectively spraying 58 mL/mu of 1% carvacrol aqua and 120 mL/mu of 0.5% physcion aqua at the initial stage of a large trumpet-shaped period and the initial stage of castration to carry out leaf surface spraying to prevent and control the corn northern leaf blight;
(3) Insect pest prevention and control:
spraying 80 g/mu of bacillus thuringiensis wettable powder to control corn insect pests by spraying leaf surfaces.
Example 3
A method for producing organic corn comprises the following steps:
selecting and planning a base, selecting varieties, planting, managing soil and applying fertilizer according to an organic standard, and performing field management:
(1) Controlling the weeds:
"first covering": deep scarification and Mongolia head compound operation (5 and 18 days-5 and 23 days)
The method comprises the following steps of (1) operating in a time slot about to emerge of the corn, stopping covering operation after the emergence of the corn, covering weeds just emerging with the corn with the thickness of 3cm, and using a single-rod ruler on a ridge and matching with a square land leveler; the deep scarification operation is carried out with the purposes of deep scarification, spring cold release, ground temperature increase and bottom soil moisture preservation, a front rod ruler and a rear rod ruler are provided, the soil penetration depth of the front rod ruler is more than 25cm, the soil penetration depth of the rear rod ruler is more than 30cm, the width of the tip of the rear rod ruler is more than 6cm, the soil penetration depth of each row is consistent, the error is less than +/-1 cm, the soil moisture is not biased, the sticking strips are not generated, and the soil thickness of a ridge and furrow base after the scarification is more than 5cm; a ridge platform (the middle of a seedling zone) is provided with a single-rod ruler, the width of the ruler tip is not less than 8cm, and the depth of the soil is 9cm;
the second rotation: weeding and scarifying machine (rotating hoe) (5-6-10 days)
Performing first-time operation in the time period from germination of the corns to emergence of the corns; carrying out rotary weeding for 3 times within 20cm after the corn seedlings emerge at the operation speed of 9km/h; the weeding scarifier can work, and each weeding scarifier can work 800 mu each day; the soil loosening and weeding are realized through operation, and the weed control rate reaches over 90 percent;
"three intelligence": intelligent weeder (5 month 25 days-6 month 10 days)
The machine is provided with the function of automatically identifying the seedling belt when the height of the corn plant reaches 10-20cm, so that the deviation of the weeding mechanism can be automatically adjusted to prevent the seedling from being damaged even if the tractor deviates during weeding or the seedling belt is bent during planting; the operation speed is 9km/h, a duck foot ploughshare and a wing-shaped ruler are arranged, the soil penetration depth is 5cm, and the weeding and loosening components are adjusted on site according to the actual field condition; the seedling injury rate is less than 3 percent, and the weed removal rate is more than 90 percent;
"four intertillage": intertillage double-layered plough (6 month 15-6 month 25)
When the height of the corn plant is more than 15cm, additionally arranging two single-wing rulers in the middle of a seedling zone of an intertillage plough, wherein the distance between the two single-wing rulers is 6cm from the seedling zone, or adopting a single-rod ruler with swallow tail wings, and the depth of the corn plant into the soil is 6cm; single-wing rulers are additionally arranged on two sides of each furrow and are 6cm away from the seedling zone, deep loosening rod rulers are arranged at the front ends of the furrows, and soil covering ploughshares are arranged at the rear ends of the furrows for intertillage, topdressing and ridging; each weed removing machine can operate for 500 mu each day, and can effectively remove over 90 percent of weeds;
(2) Disease prevention and control:
respectively spraying 88 mL/mu of 1% carvacrol aqua and 90 mL/mu of 0.5% physcion aqua at the initial stage of a large-horn mouth period and the initial stage of castration, and spraying leaf surfaces to prevent and control the corn northern leaf blight;
(3) Insect pest prevention and control:
and spraying 140 mL/mu of 1.5% pyrethrin aqueous emulsion to control the corn pests by spraying leaf surfaces.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The organic corn production method is characterized by comprising the following steps of weeding in a one-Mongolia two-rotation three-intelligent four-intertillage mode:
the first cover comprises: working at the time when the corn is about to emerge, and covering the unearthed weeds with the thickness of 2-3 cm;
the "two-turn" includes: carrying out the first rotary weeding operation from the germination to the emergence of the corn, and carrying out the rotary weeding operation again within 10-20cm after the emergence of the corn;
the "three intelligence" includes: during the period that the height of the corn plants is 10-20cm, removing inter-row grass and inter-plant grass by using an intelligent weeding machine with a seedling belt automatic identification function;
the four intertillage comprises: when the height of the corn plant reaches more than 15cm, intertillage and plough operation is carried out, and the depth of the corn plant is 4-6cm.
2. The organic corn production method according to claim 1, wherein the double-rod deep scarification furrow is performed during the first covering, the front rod is inserted with a depth of more than 25cm, and the rear rod is inserted with a depth of more than 30 cm; the ridge is provided with a single rod ruler, and the depth of the ridge in the soil is 7-9cm.
3. The method for producing organic corn according to claim 1, wherein the rotary weeding operation is performed 2 to 3 times at an operation speed of 7 to 9km/h.
4. The method for producing organic corn as claimed in claim 1, wherein the intelligent weeder is equipped with a duck's foot ploughshare and a wing ruler, and the depth of penetration is 3-5cm.
5. The method for producing organic corn according to claim 1, wherein during the intertillage plow operation, two single-wing rulers or a single-rod ruler with swallow tail wings are additionally arranged in the middle of the seedling zone, and the distance between the two single-wing rulers and the seedling zone is 4-6cm; single wing rulers are additionally arranged on two sides of the furrow and are 4-6cm away from the seedling zone, a deep loosening rod ruler is arranged at the front end of the furrow, and a soil covering ploughshare is arranged at the rear end of the furrow for intertillage.
6. The method for producing organic corn according to claim 1 or 5, wherein the intelligent weeder operates at a speed of 7-9km/h.
7. The method for producing organic corn according to claim 1, characterized by further comprising disease control comprising: and (3) spraying carvacrol and physcion on leaf surfaces at the initial stage of a large flare period and the initial stage of a heading period.
8. The method for producing organic corn as claimed in claim 7, wherein the carvacrol is 1% aqua, and the spraying amount is 58-88 ml/mu; the physcion is 0.5% aqueous solution, and the spraying amount is 90-120 ml/mu.
9. The organic corn production method of claim 1, further comprising pest control comprising: spraying pyrethrin or matrine or Bacillus thuringiensis in field.
10. The method for producing organic corn according to claim 9, wherein the pyrethrin is 1.5% aqueous emulsion, and the spraying amount is 120-160 ml/mu; the matrine is 0.6% aqueous solution, and the spraying amount is 80-120 ml/mu; the bacillus thuringiensis is wettable powder, and the spraying amount is 80-100 g/mu.
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