What are the varieties of lettuce, which are familiar vegetables, which are well marketed and sold well? How do we grow lettuce? Let's see how it's done
1: olympia: the very early and sophisticated varieties introduced by japan, which plant leaves from the outer leaves with light greenness, relatively small foliage, small leaves, slightly yellow greening of the leaves, tighter bungalows, 0. 4-0. 5 kg of single ball weight, soft quality, good taste, high heat tolerance, late smoking, suitable for late spring, early summer and summer autumn planting, 65-70 days of childbearing, 40-45 days of planting to harvest, 4-07 months of planting, 5-8 months of harvest, 3,000-4,000 kg of acreage, 25 cm x 25 centimetres in the range of 10,000 acres。
2: caesar: the very early and well-developed varieties introduced by japan, which are compact, fully grown, leafball high, circular, very short in-core pillars, package type, base tight, light yellow green, low-quality, foliage weight of 0. 5 kg, high-heated, high-temperatured, high-temperatured, high-temperature, high-pregnant, anti-disease, fatty, birth-bearing for approximately 80 days, 45-50 days, suitable for conservation and summer field cultivation, 2000-3000 kg of acreage, 40 cm x 25-30 cm in plant range, and 5,500-6000 acres。
3: no. 3: the very early and sophisticated species introduced by japan, which grow small leaves, light green, deep larvae, flat ball, light yellow green, graft type, an average of 0. 4 kg of single ball weight, very hot and very late, suitable for late spring, summer and fall cultivation, 75 days for childbearing, 40-50 days for planting, 40-50 days for planting in the summer, suitable for soilless cultivation in the greenhouse, and inappropriate for seeding due to extreme lateness。
4: winter oilballs: early well-established varieties introduced from germany, which are green, wrinkled, wide and peri-turned, with loosely loosely wide, with a single ball of 0. 3 kg, a greenhouse or large shed of 0. 4-0. 6 kg, of good quality, with a reproductive duration of approximately 80 days, with a range of 30 cm x 25 cm, suitable for conservation and spring and autumn field cultivation。
