Terrestrial (including wet, mesophytic and arid) plants static hydroponics is essentially anoxic cultivation, the premise is that it must be pollution-free cultivation. Because if the nutrient solution is polluted by organic matter, under the action of microorganisms, oxidizing these organic pollutants need to consume dissolved oxygen in the water. When the pollution is more serious, oxidation is carried out very quickly, and the nutrient solution can not be absorbed from the air sufficient oxygen to supplement the consumption of oxygen, it will make the water dissolved oxygen gradually reduced, and even close to zero. At this time, anaerobic bacteria will be propagated and active, so that the organic pollutants in the water anaerobic decomposition. This decomposition produces hydrogen sulfide, ammonia and other undesirable gases and emits a foul odor. Therefore, maintaining the cleanliness and inorganic nature of the nutrient solution at all times, in order to maintain the necessary level of dissolved oxygen in the solution, is a decisive factor for the success of cultivation. Otherwise, it will inevitably lead to root rot and death of cultivated plants.
The air is relatively dry in the region, how to make the calla lily grow green leaves, buds large, using the method of adding a shallow tray of water, easy to implement, excellent results.
The potted calla lily plants have been pregnant seedlings, placed in a caliber slightly larger than the diameter of the bottom of the pot in a shallow ceramic plate, and then injected into the plate about 0.5 cm deep water, daily watering of the potting soil is the main, to maintain the potting soil moist. When the temperature rises to about 15 ℃, the buds into the rapid growth period, can be applied to the potting soil into the flake or granular non-irritating odor compound fertilizer, in order to promote the growth of the plant and the expansion of the buds. So that the calla lily in the flowering period, the plant not only have to see enough nutrition, and the plant is always in a relatively moist environment, to ensure that it grows watery leaves, buds crystal, and can sprout more daughter plants.
Add a shallow dish of water to raise calla lilies, can avoid the potting soil when watering stained tables, but also in the short-term unattended pots of flowers do not affect the growth of water shortages. The use of this method dill umbrella grass, bamboos, bamboo, turtleback bamboo, spring feather, spiders embrace eggs and other wet foliage plants, are very desirable.
What are the characteristics and habits of calla lilies?
Horseshoe lily is also known as ciguhana, wild taro, water taro, for the family of Amanita phalloides perennial rooted herbaceous plants. The plant is 60-70 centimeters tall with fleshy tubers. Leaves are cordate-arrow-shaped, entire, green or sometimes with white spots, petiole is long, the upper part is angular, the lower part is sheath-like folded mast stem. Flowering stems are taller than the leaves, fleshy flower spikes are yellow, garden columnar, and the ornamental part of the spathe has white, yellow, and pink colors. The berries are mostly immature. Flowering in March-May, common cultivars are: white calla lily, green leaves, white flowers, flowering from winter to spring; yellow calla lily, bright green leaves, with white-red transparent spots, flower stems shorter than the leaves, flowering in summer.
Calla lily is native to southern Africa. Prefer warm, shady and humid environment, need proper lighting during growth, especially after flowering, need sufficient sunlight or the flame will show green. Growth temperature is: October to March, temperature 13-19 ℃, March to October for 19-25 ℃. It is intolerant of cold, requiring a minimum temperature of not less than 10 ℃. Our country more as a pot plant, the frost season to move indoors to prevent cold. It does not tolerate drought, growing in a dry environment, prone to leaf yellowing. Need more water during the flowering period. Born in loose, fertile, well-drained sandy loam soil.
How to pot and care for calla lilies?
Calla lily is a potted foliage and flowers, but also an important cut flower material. When potted, it is advisable to choose a well-drained sandy loam, and apply enough fertilizer. Base fertilizer to fully rotted cake fertilizer, pig stable fertilizer is good. In early spring after the first flowering (or fall), digging the mother plant rhizome around the sprouting buds, individually planted into the pot. After planting, water well, put in the shade, keep the pot moist. After the buds moved to the shade, there are scattered light maintenance, pay attention to not direct sun, not all shade. In addition to the base fertilizer before planting, the growing period, every 20 days or so, a liquid fertilizer. Fertilizer can be rotted cake fertilizer water, growing season can be every 10 days or so additional nitrogen, phosphorus and potassium mixture of thin liquid fertilizer. Do not pour the fertilizer into the leaf sheath when applying fertilizer, so as not to cause rot.
In addition, the growing season requires frequent watering, and morning and evening water spray pots around the ground to increase humidity, the best 5 -7 days with a sponge dipped in water wipe wipe the foliage to keep the leaves fresh and clean. When the leaves are luxuriant, they should be thinned out in time, so as to facilitate the extraction of flower stalks. Calla lilies began to flower in the Spring Festival, March-April for the blooming season, after the flowers should be cut off the residual flowers and scapes, so as not to consume nutrients. Flowers can continue to May. after May to July, into the dormant period, should be less watering, and do its best to create a drier environment, to be all the leaves yellow, take out the bulb, placed in the ventilation of a cool place to store, to be planted in the fall in the pot again.
If you do not let the calla lily dormant, you can rotate it in late June to the full shade and very well ventilated place care. Every day at noon and in the afternoon should be sprayed to the ground 2-3 times to reduce the temperature, in the daytime temperature does not exceed 30 ℃, calla lily can still continue to bloom.
Generally in October, before the cold dew festival, the calla lily will be moved indoors, control watering, keep the room temperature not less than 10 ℃. Wash the foliage once a week with shallow water close to room temperature to keep the leaves fresh and green. If the air is dry, water should be sprayed around the flowers to increase humidity. Pay attention to increase light in winter. In order to promote early spring flowering, can be poured in December 1-2 times thin fertilizer.
The horseshoe lily is most susceptible to aphid damage during the growing season when ventilation is poor. When pests occur, you can spray 40% oxolinic acid 1500-2000 times liquid control, and pay attention to improve ventilation.
What are the physiological diseases of calla lily?
Calla lily likes humidity and needs sufficient water during growth and development. If watering too little, the petiole will be broken because of the loss of water; too much water, will also rot the roots, Shi by less, insufficient nutrients, yellow leaves; fertilizer is too large, will cause yellow leaves, so fertilization should be appropriate. During the growth period should often keep the potting soil moist. Calla lily is suitable for umbrella shade and air humidity. In summer, if you do not take measures such as cooling and humidifying and preventing strong light exposure, it is most likely to appear leaf color yellow or wilt phenomenon. In addition, calla lilies are susceptible to smoke damage. If it is placed in the room with coal fireplace cooking or heating, often subject to smoke, a large number of smoke covering the foliage, it will cause yellow leaves, affecting flowering. Therefore, attention should be paid to the installation of a good smoker and make air circulation to prevent smoke.