Current greenhouse corn production management advice
Due to this year's warm winter climate, temperatures have been higher than usual during the spring. Therefore, the planting period of corn in the greenhouse is earlier than last year. At present, the growth of corn is good and the average leaf age is 3-4. According to the current climate conditions, the following management opinions are proposed for the greenhouses:
First, grab a sunny day and pay attention to transplanting
According to the respective production conditions of farmers, according to the sowing date and the size of the seedlings (have been placed in the three leaves as one heart) to grab the sunny day and timely transplant. When transplanting, the seedlings are separated to prevent seedlings from bullying. Each row of 3 rows, spacing 43-45 cm, spacing 24-26 cm. Among them, Zhongmu No. 2 has a density of 4000-4200, and Huyujing No. 2 and Caicha No. 2 have a density of 4300-4500. After the first film was transplanted and planted in a directional manner. During transplanting, 10 kg of ammonium bicarbonate and 10 kg of superphosphate are mixed and used as hole fertilizer per acre. If the seedlings cannot be transplanted due to continuous raining, the seedlings shall be transplanted in a timely manner, and the seed mud and water shall be promptly added to restore and promote root growth so as to achieve the purpose of “control and promotionâ€.
Second, strengthen the management of transplanted plots
1. Set up a shed in time after transplanting and adjust the temperature in the shed. Under normal circumstances, it will be about 15 days after the transplanting. Then it will be managed according to the weather conditions. During the rainy days, the shed is insulated; on the sunny day, it can be lifted and ventilated to the membrane at 12-15 o'clock in the sunny day to prevent overheating caused by overheating in the shed. In case of high temperature, both sides of the membrane can be exposed to prevent burning.
2. After the transplanting is completed, the ditch shall be opened in time to keep the ditch open so as to promote the normal growth of corn and lay a solid foundation for increasing production and income.
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