The planting time and method of porphyra yezoensis are divided into roots or cuttings in spring.

When planting seaweed, it is appropriate to choose sandy loam soil with loose fertility, good ventilation and deep soil layer, and use rotten organic fertilizer as the basic fertilizer, turn it deeply, make a high border, flatten it, and reasonably control the density when planting. After planting, regular ploughing and weeding is needed and timely fertilization can be applied.

1. Growth environment

Laver is suitable for growing in a moist and warm environment, generally growing on the slopes of woodland rich in humus, fertile and loose, and deep soil layer. When planting, it is necessary to choose loose, fertile, deep sandy loam soil to make a seedbed, first ploughing the soil, and then making a high border, the width of the border is about 1.3-1.6 meters, the height is about 16-20 cm, and the length is determined according to the size of the seedlings.

2. Planting and planting

When planting, you need to choose the same soil as the planting place, first turn it 30-45 cm deep, and then apply about 100kg of plant ash per mu and 4000-5500 kg of mature farm manure per mu. After fertilization, it can be made into a high border according to the topography. The border surface can be dug according to the plant spacing of 16 × 26 cm or 18 × 32 cm, and one plant can be transplanted in each hole. Care should be taken not to damage its roots when transplanting, and the roots should be watered enough after planting to improve its survival rate.

3. Planting method

The planting methods of porphyra yezoensis are divided into roots and cuttings respectively. Split-root propagation means that before the beginning of spring sprouting, the root system is dug out and cut into several separate roots, and then a reasonable density is arranged for planting and more watering, and new plants will grow after a period of time. Cutting propagation is when the plant grows well, cut its healthy and disease-free branches as cuttings, the length is generally about 7 cm, the cuttings need to leave about 3 leaves, cut into a wedge after work, first insert a hole with a depth of about 6 degrees in the seedbed with a stick, and then insert it into the hole, compacted, so that it can be closely connected with the soil. It needs to be watered enough after cutting, and it will take root in about a month.

4. Post-management

Weeding is needed after planting to avoid nutrient loss, and intertillage is needed after each watering, harvest and rain, which can improve soil permeability, contribute to plant growth, pay attention to soil cultivation, prevent plant lodging, and fertilize the plant in time after survival. Promote its growth.