The main target of corn seedling management is Miaoquan and Miaoqi. The plants are short and strong, the leaves are dark green and the roots are well developed. Therefore, we must do the following four aspects in field management.
Cha Miao Bu Miao
After the emergence of corn, it is necessary to check the seedlings and seedlings in time. Method of replenishing seedlings: First, replanting (seeding after germination and germination); second, transplanting seedlings (planting roots after transplanting). Both measures must be completed before 3 leaves, and conditions are applied after replenishing the seedlings. 1 or 2 times.
Miao Miao, Ding Miao
In order to prevent the seedlings from collapsing each other, contending for the competition, waste water and nutrients, the corn must grow into 3 to 4 leaves in time to separate the seedlings, and the intercropping should be densely mixed, leaving small and large, and weak and strong. Generally, when the corn grows to 4 to 5 leaves, the seedlings can be fixed.
Topdressing and cultivating
After the corn is fixed, the seedlings should be determined according to the growth of the seedlings. The principle of the seedlings should be: "The evening is not early, the black is not yellow, the fat is not thin, and the dampness is not dry." Cultivating (out of corn mulch), 20 kg of urea, 5 kg of potassium fertilizer, for attacking seedlings.
Control of pests and diseases
The main pests of corn seedling control are: ground tiger, cockroach, golden worm, and armyworm. If it is found that there are pests and diseases, it is necessary to spray drugs in time.
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