Introduction to Gui Sangyou 62

1. Features

The group of Guisangyou 62 plants is neat and has a large number of branches; it grows vigorously, with dense internodes and faster leaves; the spring germination period in Nanning is in early January, which is 3 to 5 days later than Sha 2×lun 109, but Deciduous leaves are late and the growth period is longer. The leaf is large, the mesophyll is thick, and the weight of a single leaf is heavier. The leaf length × leaf width is 26.4 cm × 24.8 cm, and the leaf weight is 2.5 grams per 100 cm2. It is resistant to drought and high temperature, and adopts the winter cutting method with long branches in winter, which is more resistant to mosaic disease. It has strong regeneration ability, and can be cut multiple times a year. It saves labor and can also be harvested by mulberry. After a multi-site regional test in Guangxi and experiments in Guangdong and other places, Guisangyou’s 62 mu of mulberry leaf yield increased by 14.92% to 24.68% compared with the control variety Sha2×lun 109, with an average yield increase of 19.32%, and the amount of mulberry leaves per mu could reach 3,500 kg; in spring; The quality of summer leaves was slightly better, the yield of cocoon layer raised by ten thousand silkworms increased by 2.3% than that of the control, and the quality of autumn leaves was similar to that of the control. The combination has wide adaptability and excellent comprehensive economic characteristics. It is a high-yield and efficient mulberry variety.

2. Cultivation technology

The number of plants per mu is 6,000, the row spacing is 0.6-0.8 meters, and the plant spacing is 0.13-0.20 meters. Before planting, plow the soil deeply and apply base fertilizer; plant mulberry seedlings according to the specifications, step on the seeds, pour enough water to fix the roots, and cut the height of the seedlings. 20 cm, strengthen the new mulberry tube

It can produce leaves and raise silkworms soon.

This species is suitable for picking leaves to raise silkworms, and it is also suitable for picking mulberry to raise silkworms. Mulberry orchards dominated by leaf cultivation are harvested twice a year: winter cutting around the winter solstice, and long branches in winter cutting (that is, half-year-old branches are left 30-60cm high), which promotes early growth of winter buds, multiple branches and leaves, and It can prevent mosaic disease, improve yield and leaf quality; summer cutting from late June to late July, summer cutting can be used in a low form, that is, cutting at a distance of 20 cm from the ground. Mulberry gardens should increase organic fertilizer and timely topdressing to promote the luxuriant branches and produce high-yield performance. Both leaf picking and mulberry can be harvested. For large silkworms, mature leaves (the leaves below the largest leaf) should be used to increase yield and improve leaf quality. For the harvest of mulberry, it is necessary to keep sufficient fertilizer and water in the mulberry garden to make the branches and leaves grow vigorously. Poor water and fertilizer conditions and dry seasons are not suitable for harvesting mulberries.

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Gui Sangyou 62