High-efficiency cultivation technology of fresh corn greenhouse
2021-09-25 01:04:25
In winter greenhouses, vegetable plants in the shed will be aged at the end of spring production. The yield and quality will be reduced, the market price will be low, and the planting benefit will be reduced. Transplanting fresh corn in the winter shed at this time can make rational use of greenhouse resources and achieve higher economic benefits.
First, select the fine varieties: According to the local conditions, select high-quality fresh corn varieties, such as Zhongwan No. 1, Su Yuxi No. 1, No. 1 and so on.
Second, nursery: seeding in late February, sports seedlings, first germination on the sandy base, until the seeds germinate after sowing, a pod of a grain, after sowing cover soil 3 cm thick. After sowing, the carcass is discharged into the gap in the shed and the greenhouse can continue to produce vegetables. Keep the greenhouse temperature within 30°C during the day and 6°C in the evening. Ventilate the seedlings before transplanting.
3. Rigging: When the corn grows to 6 to 7 leaves in mid-April, the vegetables in the shed are removed. After tumbling soil, the ridge length is 0.5 meters. At the same time, 45,000 kilograms of farmyard manure was applied per hectare, 225 kilograms of compound fertilizer was applied, and the land was leveled and pressed with a plastic film.
IV. Transplanting: dig and plant the seedlings according to the spacing of 30 cm. Seal the soil first after watering. The seedlings should be selected during transplanting, and seedlings with the same size, robust growth, and well-developed root system should be selected for transplanting, and water should be poured on the second day after transplanting to prevent dehydration of the seedlings.
Fifth, rational dense planting: In order to make each corn grow a good commodity ear, planting should not be too dense, with 54000 plants per hectare is appropriate.
6. Management: To prevent high-temperature burning of seedlings in the shed, when the temperature in the shed reaches 35°C or more, it is required to let the air cool down, and the shed can be removed by the middle of growth.
VII. Harvesting: When the ear of fresh corn is spun silk, it can be harvested and marketed 20 days to 25 days later. At this time, the fresh ear is at the milk ripening stage and the taste is moderate. Generally listed in mid-June, about one month ahead of open cultivation, with a high value of the goods.
First, select the fine varieties: According to the local conditions, select high-quality fresh corn varieties, such as Zhongwan No. 1, Su Yuxi No. 1, No. 1 and so on.
Second, nursery: seeding in late February, sports seedlings, first germination on the sandy base, until the seeds germinate after sowing, a pod of a grain, after sowing cover soil 3 cm thick. After sowing, the carcass is discharged into the gap in the shed and the greenhouse can continue to produce vegetables. Keep the greenhouse temperature within 30°C during the day and 6°C in the evening. Ventilate the seedlings before transplanting.
3. Rigging: When the corn grows to 6 to 7 leaves in mid-April, the vegetables in the shed are removed. After tumbling soil, the ridge length is 0.5 meters. At the same time, 45,000 kilograms of farmyard manure was applied per hectare, 225 kilograms of compound fertilizer was applied, and the land was leveled and pressed with a plastic film.
IV. Transplanting: dig and plant the seedlings according to the spacing of 30 cm. Seal the soil first after watering. The seedlings should be selected during transplanting, and seedlings with the same size, robust growth, and well-developed root system should be selected for transplanting, and water should be poured on the second day after transplanting to prevent dehydration of the seedlings.
Fifth, rational dense planting: In order to make each corn grow a good commodity ear, planting should not be too dense, with 54000 plants per hectare is appropriate.
6. Management: To prevent high-temperature burning of seedlings in the shed, when the temperature in the shed reaches 35°C or more, it is required to let the air cool down, and the shed can be removed by the middle of growth.
VII. Harvesting: When the ear of fresh corn is spun silk, it can be harvested and marketed 20 days to 25 days later. At this time, the fresh ear is at the milk ripening stage and the taste is moderate. Generally listed in mid-June, about one month ahead of open cultivation, with a high value of the goods.
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provides adequate temperature strength, good impact toughness, abrasion
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