Corn seedling cultivation system and corn planting method with high SOD content

Abstract

The present application provides a corn seedling cultivation system, which comprises a culture box and a transparent water culture box, the water culture box is surrounded by a support at the top, and the water culture box has a culture solution with the same height as the opening, the bottom plate of the culture box can be removed and placed on the water culture box support, and the culture box comprises a bottom culture medium layer, a corn seed layer and a soil cover from bottom to top. The present application also provides a corn planting method with high SOD content, which comprises the following steps: culture medium seedling culture; land preparation and planting; seedling stage management; ear stage management; flower and grain stage management. By changing the corn planting method and applying specific fertilizer during growth, the production of SOD active enzyme in corn is stimulated, thereby increasing the SOD content in corn fruits.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bio-agriculture technology, and particularly relates to a high-SOD-content corn planting method. BACKGROUND

[0002] SOD is a kind of metal enzyme capable of scavenging superoxide anion radicals in the body, and can effectively prevent the toxic effects of superoxide anion radicals on the body, and is a kind of widely effective medicinal enzyme. SOD is the natural enemy of oxygen free radicals and the No. 1 killer of oxygen free radicals in the body. However, due to the low content of natural SOD active enzyme in corn, the beneficial effect on the human body is very small. SUMMARY

[0003] The present application aims at the deficiencies in the prior art and provides a high-SOD-content corn planting method. The SOD content in corn fruits is increased by changing the corn planting method and applying specific fertilizers during the growth process to stimulate the production of SOD active enzyme in the corn.

[0004] In order to solve the above technical problems, the present application adopts the following technical scheme: a high-SOD-content corn planting method, comprising the following steps:

[0005] Culture medium seedling raising: urea 5-8 parts by mass, sodium molybdate 5-8 parts by mass, manganese sulfate 3-6 parts by mass, amino acid complex copper 3-5 parts by mass, and amino acid complex iron 3-5 parts by mass are dissolved in 120-150 parts by mass of water to configure a special nutrient solution or culture medium;

[0006] Wheat straw, corn straw, loess and the special nutrient solution are mixed in a mass ratio of 2:2:10:1.5 to form a clay-like mixed soil, part of the mixed soil is added to a special culture box to form a 3cm-thick bottom culture medium, and corn seeds are uniformly spread on the bottom culture medium, and 3cm of mixed soil is covered on the corn seeds to form a soil cover;

[0007] After the corn seeds are cultured in the culture box for 2 days, the bottom plate of the culture box is removed, and the culture box is placed on a support above a water culture box, the water culture box has a special culture medium with a height level with the mouth, and the germination and rooting of the corn seedlings are observed through the transparent water culture box;

[0008] When the length of the corn root is more than 2cm and the plant height is more than 5cm, transplanting is performed;

[0009] Soil preparation and planting: applying base fertilizer and transplanting the well-cultivated corn seedlings into the soil;

[0010] Seedling stage management: water-soluble silicon fertilizer 80-150 parts by mass, boric acid 40-80 parts by mass, ammonium phosphate 100-150 parts by mass, amino acid complex copper 20-30 parts by mass, amino acid complex zinc 20-30 parts by mass, amino acid complex iron 20-30 parts by mass, amino acid complex manganese 20-30 parts by mass are dissolved in 1000 parts by mass of water to prepare a seedling stage foliar fertilizer, and the seedling stage plant is sprayed on the leaves; since the seedling stage grows rapidly but the plant is small and the demand for nitrogen fertilizer is small, spraying the seedling stage plant directly with the seedling stage foliar fertilizer can accelerate the effective absorption of the plant to the fertilizer, and can promote the synthesis of SOD, CAT, POD, GSH-Px four enzymes in the growth process of the corn plant, and through biological action, it is transferred to the corn kernel, and finally a corn product with high SOD content is obtained;

[0011] Earing stage management: first, cultivate, then dig out the 10cm thick soil in the upper part of the drainage ditch and cover it on the corn planting ridge, and irrigate and fertilize the roots; by applying irrigation fertilizer to the plant roots, the nutrients required for the rapid growth of the corn plant in the earing stage can be ensured, by digging out the soil in the drainage ditch and covering it on the ridge, the rapid growth of the corn roots is ensured, which is beneficial to the generation of aerial roots, prevents corn lodging, and the soil in the drainage ditch contains pre-stored base fertilizer, which can further provide nutrients for the plant;

[0012] Flower and grain stage management: take urea 80-100 parts by mass, water-soluble silicon fertilizer 80-150 parts by mass, boric acid 40-80 parts by mass, ammonium phosphate 100-150 parts by mass, EDTA complex copper 20-30 parts by mass, EDTA complex zinc 20-30 parts by mass, EDTA complex iron 20-30 parts by mass, EDTA complex manganese 20-30 parts by mass, EDTA complex cobalt 20-30 parts by mass, modified cassava powder 20-30 parts by mass, dissolved in 1000 parts by mass of water to prepare a mature stage foliar fertilizer, and uniformly sprayed on the corn stalk, leaf, ear and fruit; the flower and grain stage is a critical period for the maturation of corn kernels, and the roots hardly grow, so the roots greatly weaken the absorption of nutrients from the soil. At this time, repeatedly spraying the mature stage foliar fertilizer on the corn plant, especially the fruit part, can directly provide nutrients to the corn plant, especially the necessary elements for synthesizing SOD, CAT, POD, GSH-Px four enzymes, and increase the SOD content in the corn kernel;

[0013] Harvest after maturation.

[0014] Optionally, before the medium seedling step, the method for selecting and treating seeds is: large-grain, low-stalk corn seeds are exposed to the sun for two days and then soaked in a prepared soaking solution for at least 24 hours.

[0015] Optionally, in the seed selection and seed treatment step, the preparation method of the soaking solution is as follows: 10-20 parts by mass of lime powder, 5-8 parts by mass of sodium molybdate, 3-6 parts by mass of manganese sulfate, and 6-10 parts by mass of ferrous sulfate are dissolved in 150-300 parts by mass of water and filtered to remove insoluble particles to prepare the soaking solution; soaking the corn seeds with lime powder can promote germination, and adding salts such as sodium molybdate, manganese sulfate, and ferrous sulfate in the soaking solution can provide the necessary nutrient components for seed germination.

[0016] Optionally, in the land preparation and planting step, the land preparation method is as follows: biological organic fertilizer is evenly spread on the land at a rate of 100 kg per mu, and the land is plowed to a depth of at least 25 cm to mix the organic fertilizer with the soil, and then the land is leveled into ridges with a height of 10-15 cm, a drainage ditch with a width of 15 cm is arranged between two adjacent ridges, the depth of the drainage ditch is 20 cm, and the cultivated corn seedlings are planted on the ridges.

[0017] Optionally, in the land preparation and planting step, the method of applying base fertilizer is as follows: 300-400 parts by mass of urea, 100-120 parts by mass of silicon-calcium-magnesium compound fertilizer, 60-100 parts by mass of chitin, 80-100 parts by mass of modified cassava powder, and 60-80 parts by mass of copper sulfate are uniformly mixed into solid particles to form base fertilizer, the base fertilizer is spread in the drainage ditch at a rate of 50-60 kg per mu, and 15-20 cm of soil is added on the surface of the base fertilizer and compacted; the base fertilizer is pre-embedded in the deep part of the drainage ditch, which can continuously provide nutrients to the soil and prevent soil erosion.

[0018] Optionally, in the ear stage management step, the method of cultivating is as follows: the soil on the ridges is turned over to a depth of 2 cm and the surface weeds are cleaned up.

[0019] Optionally, in the ear stage management step, the method of irrigating and fertilizing the roots is as follows: 200-350 parts by mass of urea, 100-150 parts by mass of phosphorus-potassium compound fertilizer, 80-150 parts by mass of water-soluble silicon fertilizer, 40-80 parts by mass of boric acid, 20-30 parts by mass of amino acid complex copper, 20-30 parts by mass of amino acid complex zinc, 20-30 parts by mass of amino acid complex iron, and 20-30 parts by mass of amino acid complex manganese are dissolved in 1000 parts by mass of water to prepare irrigation fertilizer, and the irrigation fertilizer is used to irrigate the roots of the corn at a rate of 500-600 kg per mu; using multiple amino acid complex salts as the components of the irrigation fertilizer can provide multiple metal salts to the crops, providing a material basis for the generation of SOD in the corn, and the increase in the content of metal salts is also an inducing factor for the generation of SOD in crops, so the base fertilizer prepared from the above substances can further increase the content of SOD in the corn.

[0020] Based on the above, the application further provides a corn seedling cultivation system and method, which comprises a culture box and a transparent water culture box, the water culture box is surrounded by a support at the top to form an opening, the water culture box has a culture solution which is flush with the height of the opening, the bottom plate of the culture box is detachable and the culture box is placed on the support of the water culture box, the culture box comprises, from bottom to top, a bottom culture medium layer, a corn seed layer and a soil cover. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Fig. 1 is a structural schematic diagram of the culture box in the embodiment of the application;

[0022] Figure 2 Fig. 2 is a connection diagram of the culture box and the water culture box in the embodiment of the application.

[0023] Reference signs:

[0024] 1-culture box; 2-bottom culture medium; 3-corn seed; 4-soil cover; 5-support; 6-water culture box; 7-bottom plate; 8-special culture solution. EMBODIMENT

[0025] The corn seedling cultivation system is as follows Figure 1 and Figure 2As shown, the high SOD content corn planting method of the present application comprises the following steps: in some embodiments, culture medium seedling raising: select urea 5 parts by mass, sodium molybdate 5 parts by mass, manganese sulfate 3 parts by mass, amino acid complex copper 3 parts by mass, amino acid complex iron 3 parts by mass, and dissolve in 120 parts by mass of water to configure into special nutrient solution 8; in some embodiments, culture medium seedling raising: select urea 8 parts by mass, sodium molybdate 8 parts by mass, manganese sulfate 6 parts by mass, amino acid complex copper 5 parts by mass, and amino acid complex iron 5 parts by mass, and dissolve in 150 parts by mass of water to configure into special nutrient solution 8; in some embodiments, culture medium seedling raising: select urea 6 parts by mass, sodium molybdate 7 parts by mass, manganese sulfate 4 parts by mass, amino acid complex copper 4 parts by mass, and amino acid complex iron 4.2 parts by mass, and dissolve in 140 parts by mass of water to configure into special nutrient solution 8; in some embodiments, select wheat straw, corn straw, loess and special nutrient solution 8, and mix them evenly into clay-like mixed soil in a mass ratio of 2:2:10:1.5, add part of the mixed soil into the special culture box 1, compact to form a 3cm-thick bottom culture medium 2, and evenly spread corn seeds on the bottom culture medium 2, then cover 3cm of mixed soil on the corn seeds to form a soil cover 4; after the corn seeds are cultured in the culture box 1 for 2 days, remove the bottom plate 7 at the bottom of the culture box 1, and place the culture box 1 on the support 5 above the water culture box 6, which contains special culture solution 8 with a height level with the mouth, and observe the germination and rooting of the corn seedlings through the transparent water culture box 6; when the length of the corn roots exceeds 2cm and the plant height exceeds 5cm, transplanting is performed; land preparation and planting: apply base fertilizer and transplant the well-cultivated corn seedlings into the soil; in some embodiments, seedling stage management selects water-soluble silicon fertilizer 90 parts by mass, boric acid 45 parts by mass, ammonium phosphate 123 parts by mass, amino acid complex copper 21 parts by mass, amino acid complex zinc 25 parts by mass, amino acid complex iron 22 parts by mass, and amino acid complex manganese 21 parts by mass, and dissolves them in 1000 parts by mass of water to prepare seedling stage foliage fertilizer, and sprays the foliage of the plants in the seedling stage; in some embodiments, seedling stage management selects water-soluble silicon fertilizer 80 parts by mass, boric acid 40 parts by mass, ammonium phosphate 100 parts by mass, amino acid complex copper 20 parts by mass, amino acid complex zinc 20 parts by mass, amino acid complex iron 20 parts by mass, and amino acid complex manganese 20 parts by mass, and dissolves them in 1000 parts by mass of water to prepare seedling stage foliage fertilizer, and sprays the foliage of the plants in the seedling stage; in some embodiments, seedling stage management selects water-soluble silicon fertilizer 150 parts by mass, boric acid 80 parts by mass, ammonium phosphate 150 parts by mass, amino acid complex copper 30 parts by mass, amino acid complex zinc 30 parts by mass, amino acid complex iron 30 parts by mass, and amino acid complex manganese 30 parts by mass, and dissolves them in 1000 parts by mass of water to prepare seedling stage foliage fertilizer, and sprays the foliage of the plants in the seedling stage;Since the seedling stage grows rapidly but the plant is small and requires less nitrogen and other nutrients, spraying the seedling stage with foliar fertilizer directly on the plant's leaves can accelerate the plant's effective absorption of fertilizer and promote the synthesis of SOD, CAT, POD, and GSH-Px enzymes in the plant during the growth process and transfer them to the corn kernels through biological action, ultimately obtaining corn products with high SOD content; ear stage management: first, cultivate the soil, then dig out the top 10 cm of soil in the drainage ditch and cover it on the corn field ridge, and irrigate and fertilize the roots; by applying irrigation fertilizer to the plant roots, the nutrients required for the rapid growth of corn plants during the ear stage can be ensured, and by digging out the soil in the drainage ditch and covering it on the field ridge, the rapid growth of corn roots is ensured, which is beneficial to the generation of aerial roots, prevents corn lodging, and the soil in the drainage ditch contains pre-stored base fertilizer, which can further provide nutrients for the plant; in some embodiments, the flower and grain stage management takes urea 80 parts by mass, water-soluble silicon fertilizer 80 parts by mass, boric acid 40 parts by mass, ammonium phosphate 100 parts by mass, EDTA complex copper 20 parts by mass, EDTA complex zinc 20 parts by mass, EDTA complex iron 20 parts by mass, EDTA complex manganese 20 parts by mass, EDTA complex cobalt 20 parts by mass, and modified cassava powder 20 parts by mass dissolved in 1000 parts by mass of water to prepare a mature stage foliar fertilizer, which is uniformly sprayed on the corn stalks, leaves, ears, and fruits; in some embodiments, the flower and grain stage management takes urea 100 parts by mass, water-soluble silicon fertilizer 150 parts by mass, boric acid 80 parts by mass, ammonium phosphate 150 parts by mass, EDTA complex copper 30 parts by mass, EDTA complex zinc 30 parts by mass, EDTA complex iron 30 parts by mass, EDTA complex manganese 30 parts by mass, EDTA complex cobalt 30 parts by mass, and modified cassava powder 30 parts by mass dissolved in 1000 parts by mass of water to prepare a mature stage foliar fertilizer, which is uniformly sprayed on the corn stalks, leaves, ears, and fruits; in some embodiments, the flower and grain stage management takes urea 95 parts by mass, water-soluble silicon fertilizer 86 parts by mass, boric acid 50 parts by mass, ammonium phosphate 130 parts by mass, EDTA complex copper 25 parts by mass, EDTA complex zinc 23 parts by mass, EDTA complex iron 24 parts by mass, EDTA complex manganese 26 parts by mass, EDTA complex cobalt 28 parts by mass, and modified cassava powder 27 parts by mass dissolved in 1000 parts by mass of water to prepare a mature stage foliar fertilizer, which is uniformly sprayed on the corn stalks, leaves, ears, and fruits; the flower and grain stage is a critical period for the maturation of corn kernels, during which the roots hardly grow, so the roots greatly reduce the uptake of nutrients from the soil. At this time, repeatedly spraying the mature stage foliar fertilizer on the corn plants, especially the fruit part, can directly provide the corn plants with nutrients, especially the necessary elements for synthesizing SOD, CAT, POD, and GSH-Px enzymes, and increase the SOD content in the corn kernels; after maturation, the corn is harvested.

[0026] In some embodiments, before the seedling culture step, the seed selection and treatment method is: selecting large-grain and low-stalk corn seeds, exposing them to the sun for two days, and then soaking them in a prepared soaking solution for at least 24 hours.

[0027] In some embodiments, in the seed selection and treatment step, the soaking solution is prepared by dissolving 10 parts by mass of lime powder, 5 parts by mass of sodium molybdate, 3 parts by mass of manganese sulfate, and 6 parts by mass of ferrous sulfate in 150 parts by mass of water and filtering out insoluble particles to prepare the soaking solution. In some embodiments, in the seed selection and treatment step, the soaking solution is prepared by dissolving 20 parts by mass of lime powder, 8 parts by mass of sodium molybdate, 6 parts by mass of manganese sulfate, and 10 parts by mass of ferrous sulfate in 300 parts by mass of water and filtering out insoluble particles to prepare the soaking solution. In some embodiments, in the seed selection and treatment step, the soaking solution is prepared by dissolving 11 parts by mass of lime powder, 6 parts by mass of sodium molybdate, 5 parts by mass of manganese sulfate, and 8 parts by mass of ferrous sulfate in 250 parts by mass of water and filtering out insoluble particles to prepare the soaking solution. Soaking corn seeds with lime powder can promote germination, and adding salts such as sodium molybdate, manganese sulfate, and ferrous sulfate to the soaking solution can provide the necessary nutrients for seed germination.

[0028] In some embodiments, in the land preparation and planting step, the land preparation method is: spreading biological organic fertilizer on the land at a rate of 100 kg per mu, and turning the land to a depth of at least 25 cm to mix the organic fertilizer with the soil, then leveling the land into ridges with a height of 10 cm to 15 cm, and setting a drainage ditch with a width of 15 cm between two adjacent ridges, the depth of the drainage ditch being 20 cm, and planting the cultivated corn seedlings on the ridges.

[0029] In some embodiments, in the land preparation and planting step, the method of applying base fertilizer is: selecting urea 300 parts by mass, silicon calcium magnesium composite fertilizer 100 parts by mass, chitin 60 parts by mass, modified cassava powder 80 parts by mass, and copper sulfate 60 parts by mass, and uniformly mixing the solid particles to form base fertilizer, spreading the base fertilizer in the drainage ditch, with a base fertilizer dosage of 50 kg per mu of land, and adding 15 cm thick soil on the surface of the base fertilizer and compacting; in some embodiments, in the land preparation and planting step, the method of applying base fertilizer is: selecting urea 400 parts by mass, silicon calcium magnesium composite fertilizer 120 parts by mass, chitin 100 parts by mass, modified cassava powder 100 parts by mass, and copper sulfate 80 parts by mass, and uniformly mixing the solid particles to form base fertilizer, spreading the base fertilizer in the drainage ditch, with a base fertilizer dosage of 60 kg per mu of land, and adding 20 cm thick soil on the surface of the base fertilizer and compacting; in some embodiments, in the land preparation and planting step, the method of applying base fertilizer is: selecting urea 350 parts by mass, silicon calcium magnesium composite fertilizer 110 parts by mass, chitin 80 parts by mass, modified cassava powder 85 parts by mass, and copper sulfate 75 parts by mass, and uniformly mixing the solid particles to form base fertilizer, spreading the base fertilizer in the drainage ditch, with a base fertilizer dosage of 52 kg per mu of land, and adding 18 cm thick soil on the surface of the base fertilizer and compacting; the base fertilizer is pre-embedded in the deep part of the drainage ditch, which can continuously provide nutrients for the soil and prevent rainwater erosion.

[0030] In some embodiments, in the ear stage management step, the method of cultivation is: turning over the soil on the field ridge to a depth of 2 cm and cleaning the surface weeds.

[0031] In some embodiments, in the ear stage management step, the method for irrigating and fertilizing the roots is: dissolving urea 200 parts by mass, phosphate and potash compound fertilizer 100 parts by mass, water-soluble silicon fertilizer 80 parts by mass, boric acid 40 parts by mass, amino acid complex copper 20 parts by mass, amino acid complex zinc 20 parts by mass, amino acid complex iron 20 parts by mass, and amino acid complex manganese 20 parts by mass in 1000 parts by mass of water to prepare an irrigation fertilizer, and irrigating and fertilizing the roots of the corn with the irrigation fertilizer, with a dosage of 600 kg per mu of land; in some embodiments, in the ear stage management step, the method for irrigating and fertilizing the roots is: dissolving urea 350 parts by mass, phosphate and potash compound fertilizer 150 parts by mass, water-soluble silicon fertilizer 150 parts by mass, boric acid 80 parts by mass, amino acid complex copper 30 parts by mass, amino acid complex zinc 30 parts by mass, amino acid complex iron 30 parts by mass, and amino acid complex manganese 30 parts by mass in 1000 parts by mass of water to prepare an irrigation fertilizer, and irrigating and fertilizing the roots of the corn with the irrigation fertilizer, with a dosage of 500 kg per mu of land; in some embodiments, in the ear stage management step, the method for irrigating and fertilizing the roots is: dissolving urea 320 parts by mass, phosphate and potash compound fertilizer 110 parts by mass, water-soluble silicon fertilizer 98 parts by mass, boric acid 60 parts by mass, amino acid complex copper 25 parts by mass, amino acid complex zinc 26 parts by mass, amino acid complex iron 27 parts by mass, and amino acid complex manganese 28 parts by mass in 1000 parts by mass of water to prepare an irrigation fertilizer, and irrigating and fertilizing the roots of the corn with the irrigation fertilizer, with a dosage of 550 kg per mu of land; using multiple amino acid complex salts as the components of the irrigation fertilizer can provide multiple metal salts for crops, provide a material basis for the generation of SOD in the corn, and the increase in the content of metal salts is also an inducing factor for the generation of SOD in crops, so that the base fertilizer prepared by using the above-mentioned substances can further increase the SOD content in the corn.

[0032] Based on the above, the application provides a high-SOD-content corn planting method, which changes the corn planting method and applies specific fertilizers during growth to stimulate the production of SOD active enzymes in the corn, thereby increasing the SOD content in the corn fruit.

Claims

1. The planting method for corn with high SOD content includes the following steps: Culture medium for seedling cultivation: A special nutrient solution or culture medium is prepared by dissolving 5-8 parts by weight of urea, 5-8 parts by weight of sodium molybdate, 3-6 parts by weight of manganese sulfate, 3-5 parts by weight of amino acid complexed copper, and 3-5 parts by weight of amino acid complexed iron in 120-150 parts by weight of water. Wheat straw fragments, corn straw fragments, loess, and the specially prepared nutrient solution are mixed in a mass ratio of 2:2:10:1.5 to form a clay-like mixed soil. Part of the mixed soil is added to the culture box and compacted to form a 3cm thick bottom culture medium. Corn seeds are evenly scattered on the bottom culture medium, and then the mixed soil is covered on top of the corn seeds to form a soil cover. After the corn seeds are cultured in the culture box for 2 days, the bottom plate of the culture box is removed and the culture box is placed on the support above the hydroponic box. The hydroponic box contains a special culture solution at the height of the opening. The germination and rooting of the corn seedlings are observed through the transparent hydroponic box. Transplant the corn when the root length exceeds 2cm and the plant height exceeds 5cm. Land preparation and planting: Apply base fertilizer and transplant the cultivated corn seedlings into the soil; Seedling management: Prepare a foliar fertilizer for seedlings by dissolving 80-150 parts by weight of water-soluble silicon fertilizer, 40-80 parts by weight of boric acid, 100-150 parts by weight of ammonium phosphate, 20-30 parts by weight of amino acid complexed copper, 20-30 parts by weight of amino acid complexed zinc, 20-30 parts by weight of amino acid complexed iron, and 20-30 parts by weight of amino acid complexed manganese in 1000 parts by weight of water. Spray the leaves of the seedlings with the fertilizer. Heading stage management: First, cultivate the soil, then dig out the top 10cm of soil from the drainage ditch and cover it on the corn ridges, and then irrigate and fertilize the roots. Flowering and grain-filling stage management: Take 80-100 parts by weight of urea, 80-150 parts by weight of water-soluble silicon fertilizer, 40-80 parts by weight of boric acid, 100-150 parts by weight of ammonium phosphate, 20-30 parts by weight of EDTA-complexed copper, 20-30 parts by weight of EDTA-complexed zinc, 20-30 parts by weight of EDTA-complexed iron, 20-30 parts by weight of EDTA-complexed manganese, 20-30 parts by weight of EDTA-complexed cobalt, and 20-30 parts by weight of modified cassava flour, dissolve them in 1000 parts by weight of water to prepare a foliar fertilizer for the maturity stage, and spray it evenly on the corn stalks, leaves, ears, and fruits. In the above-mentioned ear-stage management steps, the method of applying topdressing fertilizer to the roots is as follows: Take 200-350 parts by weight of urea, 100-150 parts by weight of phosphorus and potassium compound fertilizer, 80-150 parts by weight of water-soluble silicon fertilizer, 40-80 parts by weight of boric acid, 20-30 parts by weight of amino acid complexed copper, 20-30 parts by weight of amino acid complexed zinc, 20-30 parts by weight of amino acid complexed iron, and 20-30 parts by weight of amino acid complexed manganese, and dissolve them in 1000 parts by weight of water to prepare irrigation fertilizer. Apply the irrigation fertilizer to the roots of corn at a rate of 500-600 kg per acre.

2. The planting method as described in claim 1, characterized in that, The mature foliar fertilizer includes: 80 parts by weight of urea, 80 parts by weight of water-soluble silicon fertilizer, 40 parts by weight of boric acid, 100 parts by weight of ammonium phosphate, 20 parts by weight of EDTA-complexed copper, 20 parts by weight of EDTA-complexed zinc, 20 parts by weight of EDTA-complexed iron, 20 parts by weight of EDTA-complexed manganese, 20 parts by weight of EDTA-complexed cobalt, and 20 parts by weight of modified cassava flour. 100 parts by weight of urea, 150 parts by weight of water-soluble silicon fertilizer, 80 parts by weight of boric acid, 150 parts by weight of ammonium phosphate, 30 parts by weight of EDTA-complexed copper, 30 parts by weight of EDTA-complexed zinc, 30 parts by weight of EDTA-complexed iron, 30 parts by weight of EDTA-complexed manganese, 30 parts by weight of EDTA-complexed cobalt, and 30 parts by weight of modified cassava flour. Alternatively, 95 parts by weight of urea, 86 parts by weight of water-soluble silicon fertilizer, 50 parts by weight of boric acid, 130 parts by weight of ammonium phosphate, 25 parts by weight of EDTA-complexed copper, 23 parts by weight of EDTA-complexed zinc, 24 parts by weight of EDTA-complexed iron, 26 parts by weight of EDTA-complexed manganese, 28 parts by weight of EDTA-complexed cobalt, and 27 parts by weight of modified cassava flour.

3. The planting method as described in claim 1, characterized in that, The seedling foliar fertilizer includes: 90 parts by weight of water-soluble silicon fertilizer, 45 parts by weight of boric acid, 123 parts by weight of ammonium phosphate, 21 parts by weight of amino acid complexed copper, 25 parts by weight of amino acid complexed zinc, 22 parts by weight of amino acid complexed iron, and 21 parts by weight of amino acid complexed manganese. 80 parts by weight of water-soluble silicon fertilizer, 40 parts by weight of boric acid, 100 parts by weight of ammonium phosphate, 20 parts by weight of amino acid complexed copper, 20 parts by weight of amino acid complexed zinc, 20 parts by weight of amino acid complexed iron, and 20 parts by weight of amino acid complexed manganese. Alternatively, 150 parts by weight of water-soluble silicon fertilizer, 80 parts by weight of boric acid, 150 parts by weight of ammonium phosphate, 30 parts by weight of amino acid-complexed copper, 30 parts by weight of amino acid-complexed zinc, 30 parts by weight of amino acid-complexed iron, and 30 parts by weight of amino acid-complexed manganese.

4. The planting method as described in claim 1, characterized in that, in Before the seedling cultivation step in the culture medium, the seed selection and seed treatment method is as follows: select large-grained, low-stem corn seeds, expose them to the sun for two days, and then soak them in a pre-prepared soaking solution for at least 24 hours.

5. The planting method as described in claim 4, characterized in that, in In the steps of seed selection and seed treatment, the soaking solution is prepared by dissolving 10-20 parts by weight of lime powder, 5-8 parts by weight of sodium molybdate, 3-6 parts by weight of manganese sulfate, and 6-10 parts by weight of ferrous sulfate in 150-300 parts by weight of water and filtering out insoluble particles to prepare the soaking solution.

6. The planting method as described in claim 1, characterized in that, in In the land preparation and planting steps, the land preparation method is as follows: spread biological organic fertilizer on the land at a rate of 100 kg per mu, and turn the land to a depth of at least 25 cm to mix the organic fertilizer with the soil. Then, shape the land into ridges with a height of 10 cm to 15 cm. Set up a drainage ditch with a width of 15 cm and a depth of 20 cm between two adjacent ridges. Plant the cultivated corn seedlings on the ridges.

7. The planting method as described in claim 1, characterized in that, in In the land preparation and planting steps, the method for applying base fertilizer is as follows: Select 300-400 parts by weight of urea, 100-120 parts by weight of silicon-calcium-magnesium compound fertilizer, 60-100 parts by weight of chitin, 80-100 parts by weight of modified cassava powder, and 60-80 parts by weight of copper sulfate solid granules, mix them evenly to form base fertilizer, sprinkle the base fertilizer in the drainage ditch, use 50-60 kg of base fertilizer per acre, and cover the base fertilizer with 15-20 cm of soil and compact it.

8. The planting method as described in claim 1, characterized in that, in In the above-mentioned management steps during the heading stage, the method of inter-row cultivation is as follows: turn the soil to a depth of 2cm on the ridges and clear the weeds on the surface.

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