There is a proverb in the countryside: “Setting up the autumn, hanging hooks†means that the crops after the autumn are no longer needed for field management. However, the experts reminded the farmers that the crops after the autumn, especially the corn, need to strengthen the field management, and it is necessary to topdress during the heading period.
On August 23, the reporter learned from the researcher of the Agricultural Technology Extension Station of Henan Province that this year, due to the spring drought, the wheat harvesting period in Henan Province was generally late, which caused the summer maize planting period in our province to be delayed by 5-7 days compared with previous years. According to statistics, on June 10, the first type of seedlings before the wheat harvest accounted for 20%, the second type seedlings planted after the wheat harvest on June 15 accounted for 50%, and the three types of seedlings planted after June 20 accounted for 30%. At present, the seeding and pollination of the first type of seedlings is basically finished, the second type of seedlings are in the pollination period, and the three types of seedlings are about to head. A few days ago, the province's general autumn rain was very favorable for the second and third types of seedlings. The growth of maize in Henan Province is generally better than last year, but the task of field management in the later period is arduous.
After the beginning of the autumn, farmers' friends often figure out that it is not a fertilizer, which is one of the reasons for the decline in corn production. Jie Guifang said that it is a critical period for the management of the second and third types of seedlings, especially the need to strengthen field management. One is to pick up the fat. According to the technical requirements, the application of flower fertilizer, mainly nitrogen fertilizer, accounts for 10%-20% of the whole corn long-term fertilization amount, that is, 10-20 kg per mu, which can protect green and prevent aging, increase production; second, actively prevent pests and diseases. . At present, leaf spot disease of maize flower grain stage is highly prone to occur, and it is necessary to strengthen monitoring and forecasting of pests and diseases.
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