Spring maize is an important food and forage crop with a short growth period, low input and high planting value. In order to improve the yield and quality, it is recommended that the majority of growers do the following in the growth process:
Investigate the field and replenish the seedlings. Due to the quality of corn seeds and soil moisture, the sown corn will have different degrees of lack of seedlings and broken ridges, which will seriously affect the yield of corn. After the seedlings emerge, it is necessary to go to the field to check the seedlings and replenish the seedlings in time.
Seedlings at the right time, seedlings at the right time. The seedlings should be early, and should be selected before the seedlings are about to take root, generally in the seedlings 3-4 leaves. The principle of seedlings is: to remove weak seedlings, to keep strong seedlings, to remove miscellaneous seedlings, to leave full seedlings and seedlings with the same color, to remove diseased seedlings, to keep healthy seedlings. Seedling determination is generally carried out at 5-6 leaves according to the variety and soil fertility. The seedling setting time should also be sooner rather than later. The number of seedlings should be increased in the plots where underground pests occur seriously, and the seedling time should be appropriately delayed, but not more than 6 leaves at the latest.
Cultivating and weeding. Chemical weeding is not conducive to the safe growth of maize and causes soil environmental pollution, so it is recommended to combine cultivated with manual weeding. Cultivating can promote root development, control the growth of aboveground parts, and be conducive to the activities of soil microorganisms; it can also eliminate weeds, reduce soil fertility consumption, improve the nutritional conditions of corn, eliminate weeds, thereby reducing the consumption of nutrients and water and the spread of diseases and pests, and create a suitable environment for corn growth. The seedling stage should generally be cultivated three times, the first time before the corn seedling, the seedling at 4-5 leaves, the depth of 3-5 cm, the second time after the corn seedling, the seedling at 30 cm high, the depth of 7-8 cm, the third time before the corn jointing, the depth of 5-6 cm. We should follow the principle of "not cultivating soil for the first time, cultivating less soil for the second time, and raising large ridges for three times".
Irrigation, top dressing. The big flare stage is the period when corn needs the most water and fertilizer in its life, and irrigation and top dressing must be strengthened during this period to prevent the occurrence of moisture loss and fertilizer removal. It is recommended to apply 15-20 kg of urea per mu, 10 cm deep into the soil, cover the soil after fertilization, and do not sprinkle the surface to improve the utilization rate of fertilizer.
The current spring corn management technology points are introduced here, I hope it will be helpful to you. If you want to buy high-quality and high-yield corn seeds, you can download the seed bank App, and the country's excellent corn varieties are available for everyone to choose.
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