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Techniques for Freeze Protection and Growth Recovery of Flowers and Nursery Stock in Greenhouses and Polytunnels
Techniques for Freeze Protection and Growth Recovery of Flowers and Nursery Stock in Greenhouses and Polytunnels
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Detailed Explanation of Greenhouse and Polytunnel Construction Methods and Steps
A greenhouse, also known as a hothouse, mainly includes glass greenhouses and plastic greenhouses. The greenhouse structure should be sealed and insulated, yet it should also allow for easy ventilation and cooling. Modern greenhouses are equipped with devices that control temperature, humidity, light and other conditions, using computers to automatically create the optimal environmental conditions needed by plants.
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How to manage summer vegetables? You need to know these rain-proof tips for polytunnels
Starting from July 24, the largest-scale, longest-lasting and hottest-feeling heatwave of the year so far has arrived. Look at our vegetable growers: some are using high temperatures to seal and sterilize their polytunnels, some have just sown chili seeds and are preparing to germinate them, some have raised seedlings and are waiting for the Start of Autumn to transplant
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Key Management Measures After Planting Spring Eggplants in Polytunnels
1. Temperature control. For spring eggplants grown in large polytunnels, after the seedlings are planted and before they recover from transplanting, the tunnel should be kept closed to retain heat, keeping the temperature inside the tunnel at 28-30°C during the day and 15-20°C at night as much as possible. After the seedlings recover, attention should be paid to ventilation, keeping the tunnel temperature at 23-25°C during the day, generally not exceeding 33°C. 2. Fertilizer and water management. When soil moisture is good, water as little as possible before the first eggplant (the "door eggplant") reaches the size of a walnut, to raise soil temperature and prevent flower and fruit drop. When the door eggplant reaches the size of an egg, apply 10 kg of urea per mu along with watering. After that, appropriately increase the frequency of watering according to soil moisture conditions.
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Techniques for Skillfully Trellising Pumpkins in Spring Polytunnel
Spring open-field cultivation techniques 1. Sowing and seedling raising: The pumpkin varieties introduced above belong to the Western pumpkin type, and for spring cultivation early sowing is suitable; the sowing date can be calculated back from the planting time. For example, in the Jianghuai region, planting can be done in mid-to-late April, and counting on a seedling age of 30 days, sowing should be done in mid-to-late March. If a specific time is needed...
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