Iris flower is a tree species with high ornamental value. It is a perennial water herb with strong adaptability, low temperature resistance, and high temperature resistance of 30 degrees. It is very simple to breed.

Introduction of yellow iris flower

Morphological characteristics: Rhizome thick and multi-section, leaf basal, dense, long sword-shaped, alternating arrangement, leaf length 60-100 cm, width 1.5-2 cm, medium ribs obvious, and transverse reticular veins. The stems and leaves are as long or slightly shorter than the leaves, each branch has 4 to 12 flowers, 7-10 cm in flower diameter, yellow petals, brown or purple spots, and a deep yellow band on each of the petals. Capsule long, seed brown. Flowering from April to June.

Growth habits: Iris is a perennial herbaceous herb that prefers a warm, moist and sunny environment. Cold-resistant, slightly resistant to drought and half-yin. The growth temperature is 15-30 °C, the growth stops below 10 °C, the temperature is -15 °C in winter, and the leaves in the Yangtze River valley are incomplete.

Breeding method of yellow iris flower

The ramets: Before the ramets, the mother plants are dug out, the soil is shaken off, and the leaves are cut 2 to 3 cm above the buried line, and the leaves are cut open or cut with a sharp knife. Each plant carries two or three buds, then Plant grass ash or sulphur powder on the cut leaves, and plant them after drying in the shade. If the planting is carried out in the nursery, a row spacing of 6 cm × 6 cm can be used; if it is applied in the landscaping project, a row spacing of 10 cm × 15 cm can be used; if it is for the purpose of collecting seeds, 10 cm × 20 cm can be used. Plant spacing. The planting depth is related to the soil quality. If the soil is buried in the clay soil, it is 1 to 2 cm lower than the stem and leaf cut. If it is planted in the sandy soil, it is 1 to 2 cm deeper than the planted in the clay. When the stems and leaves are slightly exposed, the leaves are not buried, so as to facilitate growth and flowering.

Sowing: When the yellow calamus is cultured by sowing method, it can be sown in autumn and spring, and it can be sown with the harvest. After 20 days of sowing, it can be emerged one after another. If the seeds are harvested too late and dried too much, soak them in hot water at 50 °C for 5 to 7 days to soften the water and increase the germination rate. The seeding depth is preferably 2 to 3 times the seed size. If the sowing is too late, the yellow stalks will only grow radicles and not buds. When the spring blooms in the spring, they can slowly sprout, and after two or three years, they can bloom and bear fruit.

Culture method of yellow iris flower

Time: The natural planting period is from late March to early April. In order to make the annual flowering, the planting period can be extended to the beginning of June. From the end of March, a batch of plants will be planted every 15 days. In order to prevent the bulb from germination in advance, the bulb can be stored in a cold or cold storage at 3-4 °C.

Planting: The land will be turned 20,40 cm deep in the first year of winter, and 30,000 to 5,000 kg of compost compost will be applied per hectare. Doing squats, the width is 1 meter, and the length depends on the terrain and topography. When planting, open a small ditch on the raft, apply the base fertilizer and mix with the soil. Planted in a way that is 10 to 15 cm in pitch, 20 to 30 cm in row spacing, and 8 cm in depth. 90,000 to 135,000 bulbs per hectare. The groove distance and the forest distance can be appropriately reduced to increase the seeding amount. In order to prevent the bulb from rot, soak the bulb with a 0.1% high manganese potassium solution for 15-20 minutes.

Pests and diseases: There are not many insect pests in the disease. In the summer and autumn of high temperature and drought, 15% triazolone wettable powder is sprayed on the initial rust of the leaves; the leaf bee is sprayed with 20% pyrethroid emulsifiable concentrate.

Harvest: After about 45 days of harvesting, the ground begins to turn yellow. When the apex of the blade is 1/3 yellow, the stalks are excavated together with the bulbs, the stalks are cut off, the bulbs are placed in the shade for a few days, and the grading is carried out according to the large, medium and small balls. The graded bulbs are packed in cloth bags or plastic hole woven bags. Store in a cool, ventilated, dry place for planting in the coming year.

The iris is very adaptable, and the leaves and flowers are particularly dense. It is the flower that is used in the wetland water landscapes everywhere. Whether it is arranged on the lake or on the edge of the pool, the waterscape landscape displayed by it has poetic and artistic meaning. Plants with very high ornamental value are suitable for potted farming and landscaping and gardening and decorative gardens.

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