How to grow gladiolus
As a representative of perennial bulbous flowers, gladiolus is favored by gardening enthusiasts for its straight inflorescences and gorgeous colors. If you want to cultivate gladiolus with strong branches and vigorous ball reproduction, you must master three core skills: soil improvement, scientific planting and precise pilling management. 1. Analysis of the whole process of Gladiolus planting 1. Key technologies for soil improvement are deeply plowing 30cm to break the bottom layer of the plough, adding 15kg of decomposed sheep manure and 3kg of bone meal per square meter. It is recommended to use slightly acidic soil with a pH value of 6.0-6.5, and pine needle soil can be added to adjust the pH value. Pour thoroughly water 3 days before planting to maintain moisture content. 2. For ball treatment and planting specifications, select Class I ball with a diameter of ≥ 3 cm, and soak it in 500 times carbendazim solution for 30 minutes. The triangular layout is adopted, and the plant spacing is kept at 20×30cm. The depth of soil covering follows the "triple rule": the depth of 3 times the diameter of the seed ball (about 8-10cm) can effectively prevent lodging. 3. Daily maintenance points apply phosphorus and potassium fertilizer (0.2% potassium dihydrogen phosphate) every week during the bud appearing period, and cut off residual flowers in time after flowering to retain leaves. In mid-August, additional plant ash (200g/m2) was applied to promote corms ripening. 4. When harvesting and storing, the ball will pille when 1/3 of the leaves are yellowed, and the air humidity will be maintained at 40% when drying. Store it with double-layer mesh bag hanging method, control the ambient temperature at 2-5℃, and regularly check for mildew. 2. Planting time map of Gladiolus chinensis is planted when the ground temperature is stable at 12℃ from March to April in spring, and flowering can be achieved after a 60-70-day growth period. Planting in cold areas in the north is recommended in late April. Combined with plastic film covering, seedlings can be seedlings 10 days earlier. Anti-seasonal cultivation can be carried out in September in autumn, and insulation sheds need to be built to maintain the ground temperature above 15℃.
Master the principle of "deep burial and shallow harvest": deep burial during planting ensures stability, and shallow excavation during harvesting to avoid damaging the balls. Through scientific annual management, it is possible to achieve an annual increase in seed ball production by 30%-50%, and continue to obtain high-quality cut flowers.