Planting techniques of Gastrodia elata

1. Selection of hemp seeds

Wu Tianma arrow hemp water content is less, the same number, the same shape and size of Tianma, usually a catty of red Tianma is 40-50, while Wu Tianma only 30-40. In this way, when introducing black gastrodia elata seeds, it is necessary to weigh the weight and calculate the number of seeds. Planting one square meter of red gastrodia elata requires 1 jin of hemp, planting one square meter of black gastrodia elata requires 1.2 jin of hemp.

2. Cultivate Armillaria mellea

In cork oak, cherry tree, catalpa tree, milk seed, fragrant tree, etc., this kind of tree wood solid rot resistance, and thick bark, not easy to fall off. This kind of tree cultivates Wu Tianma best. The diameter of the tree is 5-12 cm thick, and the length of the broken tube is 50 cm. Branches below 5 cm in diameter can be cut into short branches 5-10 cm long and placed evenly around the coarse fungi. The amount of bacteria is calculated and prepared according to 8-10 roots per square meter (or one cellar), weighing 25-30 kg and 8-10 kg of short branches. The culture time of bacteria material is from March to April in spring, two bottles of bacteria are used in one cellar, and from August to September in autumn, 1.5 jin of bacteria branches are used in one cellar.

3. Cultivation methods

When sowing, the seed hemp is placed close to the fungus material, 6 seed hemp are placed on one fungus material, 4 are placed in the middle of the fungus material, and one is placed at each end. Both hole planting and row planting are acceptable. Cultivation depth is about 15 cm. When planting holes, cover them with fine soil and fill them. There is no gap between hemp seed and soil, and between fungus material, fungus branch and soil. The cultivation holes are covered with deciduous leaves of broadleaf trees, thatch grass, straw, corn stalks and the like, and the covering thickness is 2-3 cm. Then open the drain.

4. Field management

(1) In winter and early spring, cover should be used for heat preservation. The temperature of soil layer below 10 cm in the cave should be maintained at 0-5℃. In July, August and September, cover or shade shed must be set up to adjust the temperature and control the temperature within 26℃.

(2) Moisture management 12-3 months to control humidity and freeze, soil moisture content 30%, see moisture can be. 4-6 Monthly increase in water to promote growth, soil moisture content of 60-70%, hand holding into a group, falling soil can be scattered. 7-8 The monthly humidity drops and the soil moisture content is about 60%. 9-10 Monthly control of water bacteriostasis, soil moisture content of about 50%, a little into a group of hands, and then light pinch can be scattered. In November, the soil moisture content is about 30%, dry and loose. At the same time, attention should be paid to weed removal and pest control during the growing season.

5. Harvest

When digging after frost, it should be done when the weather is fine and the soil is cool. It is forbidden to dig in rainy days or within 1-2 days after rainy days. When digging, two kinds of baskets and boxes should be prepared, one for seed hemp and the other for commercial hemp. Among them, hemp seeds are sown in time or transported and stored according to requirements. Commodity hemp should also be processed and dried in time.