In order to achieve a high yield of corn, “seven points depends on seeding and three points depend on management.†However, in the past two years, corn seedlings in our village have grown inconsistently, and the phenomenon of lack of seedlings and ridges has increased. I have followed two years of follow-up investigations and found that there are three main reasons:
The concentration of the first and second seed dressing agents is large or the medicines are not properly selected. Some peasant households do not trust the seed that has been seeded on the market, and use secondary dressings. When the seed dressings and the original dressings contain triazoles, the emergence will be slow and the emergence will be uneven. Large concentrations of agents can also affect sprouting.
Second, the impact of wheat straw. There is no straw shredding device added to the wheat combine harvester, resulting in a large amount of local straw, affecting the quality of sowing, resulting in lack of seedlings and ridges.
Third, fat burning, burning seedlings. Because I can not timely watering after corn sowing, seeding a large amount of easy to burn seed, burning seedlings.
In response to the above situation, I made three suggestions to farmers, and achieved good results after the application of farmers.
First, dilute or ship out of excessive wheat straw. This will not only improve the quality of seedlings, but also reduce the damage of the two A. moths.
Second, there is no specific disease in the field and no secondary dressing is required. If secondary dressing is to be carried out, it is necessary to look at the varieties of seed dressings on the original packaging to avoid repeated drug use. When the situation is not clear, no seed dressing is required.
Third, the use of small tractors sowing the amount of fertilizer is 20-25 kg / acre, in the big bell mouth topdressing urea 20 kg. The use of large tractors sowing can be used for 45-50 kg of seed fertilizer, the whole growth period is no longer top dressing.
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