First, the ecological habits of Chayote Chayote in the country of origin and southern China warm and humid climate conditions. The underground roots will not die in winter, and the vines will be regenerated in the spring of the following year. The flowering results will last for more than three years. In the North, it is changed from the perennial in the South to the first year. It is feasible to plant annual chayote in open fields in the north. The suitable temperature from the nursery to the growth period is 20-30°C. The growth period has a large demand for water and fertilizer, moisture resistance and yin, not drought, but it is also not resistant to waterlogging. Due to the developed root system of chayote, it has strong adaptability to soil. In fertile soil, the soil is deep and well-drained sandy soil is more conducive to root development. The chayote has a long growth period. It is cultivated in the early spring in the north, the frost is finally planted on the ground, the flowers are seen when the heat is applied, and the results before and after the white dewfall are harvested before the thick frost. Chayote vines are highly branched and spread, and their descendants are numerous. As long as the water is full, the children and grandchildren will see leaves and melons. II. Favorable Conditions for Planting Chayote in the North China has a wide land in northern China and covers a large area of ​​various orchards and fruit trees. It has the site conditions for planting and developing chayote, and the scaffolding occupies space for three-dimensional development, and gains natural advantages in production value. Judging from the natural climatic conditions, in terms of southern Shaanxi, the climate in the territory is warm and the average annual temperature is 12.9°C. In spring from March to May, 13°C, summer from June to August, 23°C, and autumn from September to November, 13°C. Except for the winter months, the spring, summer and autumn weather conditions are all suitable for normal growth and flowering of chayote. III. Specific measures for the cultivation and management of chayote in the north The cultivation and management techniques of Chayote are described as follows: (1) Fostering nests. In the winter season, three 60-square-meter spaces were used to dig the ground in the ground. In the lower 70 centimeters, apply 50 kilograms of human urine or earth compost, or 1 kilogram of compound fertilizer, mix it with the soil and allow it to fully decompose. The upper layer of 30 centimeters covers the Sonoda or soil in the forest, and the final planting of the melon seedlings for the coming year will provide a good breeding ground for the melon seedlings. (b) Germination and nursery. (1) The three methods of simple and germinating seedlings of northern chayote: First, in the sweet potato kiln, the germination and seedling raising, and the sweet potato kiln, the temperature in December is between 8 and 10°C, which is suitable for the heat preservation and germination of chayote. The second is the germination of vegetable greenhouses. The temperature of the vegetable greenhouse in winter is between 15 and 30°C, and it is the best temperature for chayote germination. Before and after the cold in the middle and early January of the month, the melons were transplanted into the shed to germinate. When the germs grew fibrous roots, they were planted and nursed in the shed. The planting of chayote in the shed was conducted in October to plant seedlings directly on the shelf, early flowering and squashing, and spring sheds in the spring. From the end of May to the early June, it will be the city of Kuching. The third is to germinate seedlings in a heated room. Choose a small, heated room and use nutrient pots, pots, or wooden boxes for seedlings. The room temperature is maintained between 15 and 25 °C. (2) Intensive embryo culture. When the embryonic fetus grows well, it begins to sprout. Lightly pull the seed melon suture line, use the sterile camera to move the embryo, gently remove it, and plant it in a small nutrient bowl or in a nutritious soil with a good seedling. (3) Cluster bud cutting seedlings. A chayote can grow many clusters of shoots, at least two or three seedlings are six or seven seedlings. These buds can grow to about 10 cm in April and May. (c) Build scaffolds. (1) Set up a flat or arch corridor scaffold of 2.5 to 3.0 meters. (2) The chayote set between the orchards can be made by means of tree-pulling nets according to the characteristics of various canopies such as grapes and apples. (3) The courtyards of the homes are linked to each other according to the natural conditions of the walls and bamboo. (4) The melon rack at the top of the building is only 1 meter high. Regardless of any scaffolding, only one or two main vines of the Chayote under the axe are left, prompting the growth of the descendants and increasing the yield. (d) Strengthen water and fertilizer management. In the early spring, the saccharin seedlings planted in the soil of the Guasuo Su, insist on watering around the roots every day to keep the ground moist. Seedling period must not rely on melon body fertilize urine to prevent burning seedlings. When the main vine grows to about 1 meter, a small amount of human fecal or urine mixed fertilizer or chemical fertilizer rushing seedlings is applied at the 30 cm away from the melon seedlings. Into the days of the dog days, every 10 days of flood irrigation under the ground floor, with the human body excrement and compound fertilizer, tapping vines, hot weather, pay attention to leaf spray, both cooling and increase leaf fertilizer. After the beginning of autumn, spray foliar leaf once every 10 days. (e) timely harvest storage melons. In the early stage, the melons grown for 15 days should be harvested in a timely manner. Picking the melons should be lightly lifted and put into the room at about 5°C after entering the winter to avoid freezing injury. With proper storage, the melons harvested in September and October can be stored for seven or eight months. (6) Choose to keep the seeds. For melons. You can choose to keep melons in the third or fourth melon. Chayote, growth period of more than 25 days. The melon body suture is split and the two-finger arch protrudes. The color is yellow and green. The selected melons still need to prevent warming and early budding before winter.