Frost is the last solar term in the fall and it is the transition from autumn to winter. Frost and thrift The weather is getting cold and it begins to have frost. With the advent of autumn frost, the vegetable crops that are not cold-tolerant have already been pulled or are about to stop growing, and the grass and trees have begun to turn yellow, presenting a deep autumn scene. The production of open-faced vegetables is about to end, and harvesting should be carried out in a timely manner; the production of vegetables in protected areas is a critical period for planting and management.
Management of autumn greenhouses
For tomatoes, cucumbers, eggplants, peppers and other thermophilic crops, heat and cold work must be strengthened. At night, winds should be shut tightly. A straw curtain or old insulation of 1 m to 1.2 m high is affixed around the shed, and the door is suspended at the door. Watering and timely harvesting. For tomato fruits that cannot be transformed, they are harvested at night when the minimum temperature falls below 8°C, and then put into warm greenhouses or idle houses and matured. Cold-resistant vegetables such as celery, lettuce, rape, spinach, and radish should be strengthened with watering, pest control, and other management work.
Overwintering melons and vegetables for planting
In winter greenhouses, cucumbers, summer squash, and other melon crops that are overwintering are scheduled to be planted at an appropriate period. Fertilization and soil preparation work must be done 10 days in advance. Each mus of fully-fermented, finely-ground organic fertilizer with a weight of 5,000 kilograms should be used. Bio-organic fertilizer or commodity organic fertilizer 3000 kg. The melon crops have strict requirements on the soil, and they must be finely soil-plotted and cultivated to a depth of 30 cm or more. They should be loose and flat and have no light or darkness. They should be planted at a spacing of 1.4 to 1.5 meters, and they should be planted in large and small rows, 1 meter to 1.1 meters wide. Rice, small row 40 cm, made of stilts 20 cm to 25 cm above the ground, covering the mulch, and adopting a watering method of drip irrigation under the membrane or under irrigation under the membrane. The specific density depends on the variety, the average cucumber variety is 3000 to 3300 per mu; the fruit type cucumber variety is about 2200 per mu; the zucchini is between 1200 and 1800 per mu. Select sunny planting, so that the appropriate shallow planting, said the farmer: "planting deep eggplant, shallow planting melon." "Cucumber crucian carp, eggplant no neck." Should be seedling shoots and the ground level is appropriate, timely planting after colonization planting water.
Overwintering root vegetables to do water and fertilizer management
Overwintering spinach, shallot, and onion seedlings are in the period of seedling growth. First, watering management should be done, but flooding and flooding should not be used. When three to four leaves of seedlings are topdressed with water, fertilizer is applied once per acre. Nitrogen, phosphorus, potassium, about 40% of the Sanyuan red fertilizer 6 kg ~ 8 kg; early to crowded seedlings, watering in time after the cultivator loose soil, enhance the ability to resist cold overwintering.
The cleanliness and ploughing of open fields
Fresh vegetables, such as tomatoes, cucumbers, peppers, eggplants, potatoes and other crops, are harvested and cleaned early in the past. The plants and roots in the ground are taken back and concentrated at specified places for harmless treatment such as high-temperature composting or ozone disinfection, because many overwintering eggs and germs are hidden inside. Before thawing, the land is ploughed, and in the block on the urban uptake area, methods of planting overwintering root leeks or planting rapeseed are adopted to prevent the formation of dust from the exposed land and avoid pollution of the city air.
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