Calla lily (commonly known as the multicolored lotus) is cultivated in winter greenhouses. It has a long flowering period and is bright and colorful. The new year is on sale and is popular with consumers. Its main cultivation techniques are as follows. 1. Base fertilizer application According to the habit of acid-resistance soil of calla fertilizer and water, choose the pH value below 7 and cultivate in a greenhouse with good irrigation conditions. For every 667 square meters (mu), apply 8 cubic meters of cooked cow dung. Spread the manure and soil. Before planting, irrigation water is added and the soil moisture reaches about 20%. Second, timely planted flower bulbs 8 days before colonization, the greenhouse film was warmed, and the ball was planted on October 10. At this time, the soil in the shed reached a depth of 10°C and reached 16°C. The maximum temperature in the shed is 30°C during the day and 15°C in the evening. After the ball is planted, a layer of film is laid on the surface of the bowl, so that the ground temperature is further increased, the sprouting occurs at high temperature, and the film is removed timely after budding. Third, a reasonable density of 1 meter wide and planted 4 rows, the average spacing of 20 cm (narrow row on both sides of the middle width line). According to the diameter of the bulb, different plant spacings and densities were determined. The bulb diameter was 3.5-4 cm, the spacing between the plants was 15 cm, 3.4-3.1 cm, the spacing between plants was 13 cm, the spacing of plants below 3 cm was 10 cm, and 2-25 thousand plants were planted per 667 square meters. , The depth of the ditch is 8-10 cm, so that the thickness of the cover soil is the same after planting, and the flower growth is well-balanced. For every 667 m2, 20 kg of biological fertilizer is applied. Fourth, to strengthen the management buds to flowering during the daytime 27°C, 18°C ​​at night, relative humidity 75%; the temperature control during the harvesting period should be lower to extend the flowering time and adjust the time to market, the daytime temperature is 25°C , 15 °C in the evening. The top soil is watered 2 days after it is dry. Pour water once a day before harvesting so that the flowers contain adequate amounts of water and remain bright. The flowering peak was sprayed with 0.3% potassium dihydrogen phosphate for 3 times to balance the nutrient supply. In addition, 500 times liquid of trichlorfon was used to control seed flies; 70% of mancozeb 800 times liquid was used to control leaf mold; 50% of Fukmi double 500 times liquid was used to control root rot. Fifth, the flowering market and the ball harvesting flower garland flowering on November 25th, the flowering period from December 5th to February 15th. The petal began to color and it was dyed freshly on the market. After spraying, foliar fertilizer was sprayed in a timely manner to irrigate the water and promote the regeneration of the new ball. Watering was stopped 7 days before the collection of bulbs to reduce the water content of the seed bulbs. The leaves gradually became yellow and wilting. On March 28, the bulbs were harvested, and the labels and files were recorded to prevent mixing and viewing of data.