Culture methods of calla lilies

Pot culture and trough culture are usually used in calla culture. Potted plants generally choose short and compact white stalk species, safflower calla lilies and honeysuckle calla lilies. For large plants, tall green stalk species or yellow calla lilies can be selected. The calla lily with the harvest bud as the cut flower is suitable for trough culture.

Potted methods of calla lilies

1. Matching soil: the soil is required to be fertile, neutral or slightly acidic. It can be made by mixing 2 parts of fine broken pond soil (or clayey fine sand), 1 part of rotten leaf soil (or compost), and adding appropriate amount of calcium superphosphate and mature human and animal manure.

2. Reproduction: usually after flowering, the bulbs around the tubers are peeled and cultured for one year, and then blossom next year. Through the experiment, the root-tillering method can be used to blossom in the same year, and the specific method is as follows: from late June to early August, combined with changing pots, the well-developed ramets with roots are broken by hand (preferably without a knife) and planted in the prepared basin. If it is used as a cut flower, it can be planted with 2 or 3 ramets and placed in a cool place after planting. Using this method to propagate, it can blossom from September to October of that year.

Planting management of calla lilies

1. Nutrient solution management: the nutrient solution for soilless cultivation of calla can be formulated as follows: 800 grams of calcium nitrate, 210 grams of potassium dihydrogen phosphate, 250 grams of magnesium sulfate, 500 grams of potassium nitrate, 30 grams of ammonium nitrate, 10 grams of iron ethylenediamine tetraacetate, 2 grams of manganese sulfate, 1 gram of zinc sulfate, 1.3 grams of boric acid, 0.15 grams of copper sulfate and 0.1 grams of ammonium molybdate. In the initial stage of calla growth, the concentration of nutrient solution can be controlled at 1.2ms, and the concentration of nutrient solution can be appropriately increased to 1.5ms/cm in the middle and later stage of growth. During the whole growth period, the pH value of nutrient solution should be adjusted to 5.6-6.5. The supply of nutrient solution is mainly determined according to the weather conditions and plant size. Generally, the liquid is supplied 2 or 3 times a day to ensure that the cultivation substrate layer is moist and there is a shallow water layer at the bottom of the trough.

2. Cut flowers: the bud of calla lily Buddha has reached its maximum, curled and opened, it can be picked and cut. After picking and cutting, the upper part of each cut flower is wrapped in cellophane, graded in size and listed in a box; the transportation of fresh cut flowers should pay attention to its transportation because of its own characteristics to avoid damage caused by the transportation process. Long distance should be about 20 bundles as a transport unit, first loaded with plastic bags and then boxed for transportation, short-distance cost savings can only be used for large plastic bags should be fastened with adhesive tape and then bagged for transportation. In the process, it should be placed flat above the plane to avoid being squeezed and damaged by other objects.

Maintenance methods of calla lilies

1. Light and temperature. Calla lilies like warm, humid and slightly shaded environment, but the flowering period should be sunny, otherwise the flame bracts will be green, affecting the quality; it is necessary to ensure 3-5 hours of light every day, otherwise the petiole will elongate and affect the ornamental value. Calla lilies are not cold-resistant and will be moved to the greenhouse in mid-October. In summer, under the condition of shade, we often spray water to cool and moisturize.

2. Watering and fertilizing. Calla lilies like moist and fertile soil, which is often called "big fat and big water". They should be watered during their growth. Topdressing can be applied alternately with mature soybean cake water and chemical fertilizer (compound fertilizer or diammonium phosphate), once every 2 weeks; when topdressing liquid fertilizer, do not pour fertilizer and water into the leaf sheath to avoid rot. It was mentioned before: "stop fattening when you see the buds." After the experiment and comparison, the author thinks that the amount of fertilizer should be increased after seeing the bud, so as to ensure its long flowering period, large and colorful flowers, and make the buds blossom all the year round.

3. The use of phosphonium silicate. In potted calla, the application of ferrous sulfate is an important part of the author's experiment. The application of ferrous sulfate can make the leaves of calla lilies bigger, thicker, green, smooth and glossy. The petiole is not easy to elongate, so as to ensure the beauty of the leaves. At the same time, it can promote the formation of buds and prolong the florescence. The specific method is to dilute ferrous sulfate into a 2% solution and pour it once every one month, each time thoroughly.