The beginning of spring is the beginning of a year of solar terms. At this time the climate is still cold, the temperature is low, there is still snowfall, there is windy weather, but the temperature began to gradually increase, the light hours gradually extended. As the saying goes: “One year’s plan is in the spring.” At this time, it is the time for the cultivation of spring hoe vegetables in the protection facilities, planting, and planting. Before the weather is completely warmed up, it must be managed as carefully as possible.
Cultivate strong seedlings

1. Beans, vegetables, greenhouses Early spring, Chinese bean and kidney bean are planted in early February. Use 50-hole plastic trays or 66 cm of nutrients to grow seedlings in a greenhouse with good insulation properties. Seed 2 or 3 seeds per hole. The seedling age is about 15 days, and it is planted in the middle and late February, and harvested in late April.

2. Melons and small sheds covered with double layers of cucumbers, zucchini, pumpkins, wax gourds, watermelons, melons and other melons were planted in mid-February and planted in late March. Use 32-hole or 50-hole trays or 88-cm-size seedlings for nutrition, using peat and vermiculite as the substrate. If the ground temperature is lower than 15°C, a geothermal heating line and a temperature controller should be installed to increase the ground temperature. Cucumber should use good varieties such as “Zhongnong 12” and “Northern Agriculture and Good Show” with early maturity, good quality, and strong disease resistance.

3. Celery exposed spring celery seedlings were planted at the beginning of February and planted in mid-April and harvested from June to July. In greenhouses or small sheds covered with grass seedlings, using 128-hole plastic plug-hole soilless seedlings can also be used ordinary seedling nursery. Select early and good quality Ventura and other varieties. Soak one day in advance and soak the seeds for 24 hours, then use your hands to pick up the germinating substances on the seeds.

4. Management methods for growing young seedlings Solanaceous vegetables and melon vegetable seedlings that have been bred from last December to the following January have reached 2 or 3 leaf 1 hearts at this time. Seedlings that adopt ordinary seedling nursery methods must be seeded in time. Promote the use of nutrients to protect the seedlings. Pay special attention to adjusting the proper temperature. At the same time, do top dressing, watering, and seedlings. After the 2 leaves of the seedlings were watered, fertilizer was applied in time. At the same time, we must do a good job of prevention and treatment of disease during seedling stage

Solar greenhouse fertilization site preparation

In the early spring, warm-temperate crops will be planted soon, and fertilization preparations must be done 15 days in advance. First of all, to clean the pastoral areas, reduce the occurrence of pests and diseases, remove the leaves and weeds from the top of the plant, remove them in time, and transport them to designated locations for ozone disinfection or high-temperature composting. Apply per acre rotten, fine-quality organic fertilizer 5000 kilograms or commodity biological organic fertilizer 3,000 kilograms, plow depth 25 to 30 centimeters. Leveling the ground to a fine level, to the level of flat, flat, no light and dark rubbing standard, laying drip irrigation pipe covering the film, waiting for the opportunity to plant.

Warm temperature crop colonization

In the greenhouse in the early morning, cucumbers, tomatoes, eggplants, peppers, summer cucurbits and other thermophilic crops began planting in mid-February. Generally, the minimum ground temperature of 10 cm is stable above 15°C, and it is necessary to improve the quality of soil preparation and apply organic fertilizer in advance as base fertilizer. Select "cold tail warmer" timing colonization.

Transplanting and sowing of cold and fast ripe vegetables

The fast-growing vegetables such as rapeseed, garland chrysanthemum, spinach, lettuce, pakchoi, cherry radish, etc., which are planted in the solar greenhouse, are the seasons suitable for sowing and planting, and the planting methods for harvesting in batches can be adopted according to the sales conditions. Apply sufficient mellow per acre, fine-quality organic fertilizer 1500 kilograms to 2000 kilograms, fine soil preparation, do leveling, flat, straight, loose topsoil soil not litter. Artemisia selengensis, spinach, cherry radish, and Chinese cabbage should be planted directly by sowing. After pouring sole water, the seedlings should be evenly sowed. The cover soil should be covered with a layer of plastic film to achieve the effect of heat preservation and moisturizing, and 50% of the seedlings should be withdrawn timely. Strengthen the growth period management, plant fresh, safe products to supply the spring off-season market.

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