Sequoia cutting seedlings are mostly shaded. This requires the use of shade nets, and the shady shed must be uncovered every day. The experimental study on the total seedlings of Nepeta hardwood cuttings shows that the survival rate can reach more than 90% by appropriate methods. First, the fine site preparation The nursery must have a flat topography, deep soil, and easy drainage and irrigation. Generally, the land is deep-frozen before winter, and the land is fine-tuned after thawing. The application of phosphate fertilizer is 10 to 15 kilograms per acre, and the width is 1.5 to 1.7 meters. It depends on the number of long-term cuttings, and the spacing is 12 to 15 centimeters, and the spacing is 3 centimeters. Insert 17,000 per acre. Second, ear storage The survival rate was higher in the annual woody branches collected from the branches of the mother tree of 2 to 3 years old in the metasequora cuttings. As the mother tree ages, the survival rate of hardwood cuttings decreases. 1. Spike Time: The best from the end of December to the beginning of February every year. Select buds full of current year branches, the length of 15 to 18 cm is appropriate. 2, cuttings storage: about 100 as a bundle, the bottom leveling stored in wet yellow sand, a thickness of about 5 cm. The humidity of the yellow sand is in the hands of a group and it is better to let it spread. After the sand trap to prevent water loss, the top cover film moisturizes. During the sand traps, dry and wet conditions and plastic film ventilation should be checked frequently. Third, cut the essentials Metasequoia hardwood cutting time ends in late March and early April. After the whole face is well covered, cut it on the edge of the water. Pulp-based. Insert 2/3 of the cuttings into the soil and 1/3 of the ground. Once you've plugged in, pour enough water. One week later, due to the pulp plugging, there will be soil compaction or cracking between rows of seedlings. It is necessary to cultivate loose soil one or two times in time, and then cover with straw in the rows of cuttings. About 300 kilograms or so to make it moisturize and increase the temperature, promote its hair rooting. IV. Water and fertilizer management The longevity of Metasequoia is longer (nearly two months), and it usually takes 2 to 3 months from cuttings to rooting. At this time, the light is strong, the temperature is high, and the evaporation is large. Therefore, the management of good water is the key to the success or failure of all-light breeding. According to the characteristics of Metasequoia, the “drinking water†method should be adopted. In April and May, the seedlings must be watered once in the germination period. In the rooting period of May and June, the water should be poured in 10 days, and in July and August, the water should be poured once a week. 8 Reduce the number of watering after the end of the month. In late July, the seedlings reach a height of about 20 centimeters. The first time the water is used as a fertilizer, and the amount of fertilizer is 10 kg of ammonium per acre and 1:800 times the aqueous solution of dipterex or carbofuran is applied at the same time to prevent underground pests. Every 10 to 15 days thereafter, a fertilizer is applied and until mid-October fertilization is stopped. CeshiguanjianziCeshiguanjianziCeshiguanjianziCeshiguanjianziCeshiguanjianziCeshiguanjianzi Ceshiguanjianzi Ganzhou Green days Biochemical Technology Co., Ltd. , https://www.tlqcjs.com