Peas are semi-cold vegetables. The optimum temperature for growth and development is 15 to 20°C. The root system of peas is strong and the distribution is deep and wide. It is not suitable for transplanting seedlings, but its main and lateral roots develop very vigorously. Recovery, if using nutritious soil or paper seedling nursery, there is almost no slow seedling process. Therefore, peas can be seeded and transplanted both lively and transplanted. Since seedlings are easy to manage, seedlings are generally transplanted. 1 The cultivation of age-appropriate strong seedlings is one of the aspects of pea production increase. The seedlings are raised under different conditions in different seasons, and the seedling age is also inconsistent. Autumn and winter pods are usually planted in mid-late July. The seedling age is 20 to 25 days. Winter and spring pods are planted in the middle and late October. The seedling age is 30 to 35 days. The spring and summer pods are sown in the middle and early February. The seedling age is 35. ~40 days. 2 The formula of nutritious soil is the same as that of navy bean. Before the sowing, the soil or paper basket shall be drained neatly, and the bottom water shall be poured. Then the hole shall be drilled with a depth of 5 to 6 centimeters, and the dry seeds shall be sown at the rate of 4 capsules per hole. It is good for emergence. 3 After sowing, a certain temperature should be controlled. When the temperature is lower than 4-8°C, the germination will be very slow and the number of days of emergence will be prolonged. The temperature is higher than 25 ~ 30 °C, although the germination is fast, but not the whole seedlings. Only when the temperature is controlled at 10 to 18 °C can germination be fast and neat. Seedlings with nutrient clods or pots of paper are generally used without seedlings, without cultivating or fertilizing. Under normal circumstances, they are not watered, and the weather is too dry and water can be properly poured. For the spring and summer grasshoppers and winter and spring pods, they must be planted before cultivation. For 4 days, exercise at a low temperature of about 2°C to facilitate adaptation to the environment after planting and ensure its survival rate. 4 5000 kg of organic fertilizer applied per acre, adding calcium phosphate 20 to 30 kg, and then turned into the soil, flat, built 1.50 meters wide. When planting, plant 2 lines per plant, open the ditch, and pour enough water at the bottom. The distance between the points is 20-25 cm, 3 to 4 plants per hole, and cover soil after planting. 5 After planting, the seedlings are generally no longer irrigated, but the cultivators should cultivate the soil in time so as to warm the soil until the buds are not watered and topdressing. Only cultivating and weeding and earth-cultivation are carried out to promote the downward growth of the root system and develop the root system. After being budded, the fertilizer is weighed again for 1 time. 30 kg of urea per acre is applied between the 2 rows, followed by watering, and cultivating 1 time after 2 to 3 days. After the first flower bud grows, the amount of growth is increased. The amount of fertilizers also increases, and it is necessary to chase 1 fertilizer every 10 to 15 days and pour 1 water. Each time about 25 kg of ternary compound fertilizer is applied 3 times in total to ensure the flowering and seedling stage of phosphorus. Supply of potassium. 6 The peas in greenhouses often use creeping varieties. The vine stems are soft and hollow, and they are easy to break. Therefore, when they grow to spit, they must be framed. Generally, the methods of combining truss and string are used to insert bamboo roots every 1 meter. 0.50 meters with a rope wrapped around, so that pea pods climb each other, and then use a rope waist.
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