The bergamot root is developed and widely distributed underground. After two years of planting, it can grow a root similar to yam. The stems are long, the branches are strong, and the leaves are fist-shaped and pentagonal. They are pollinated by females and their fruits are pear-shaped. Each melon contains a seed, which is a typical "fruit growth" vegetable. Its edible parts are the tender ends of fruits and plants. Its meat is crisp, soft, dense, fragrant, juicy and delicious, and it is rich in various nutrients needed by human body. My friend has eaten several times. Because it is delicious, several trees were planted last year, but bergamot is a typical thing with short sunshine. It doesn't bloom in long sunshine, and it only blooms in autumn in North China. Early frost comes early here, and the temperature drops rapidly, which leads to unsatisfactory output. So, how to manage the cultivation of bergamot in North China to get an ideal harvest?

Papaya likes warm weather and can't stand the cold, but in tropical areas where the monthly average temperature exceeds 28, summer is more difficult. In areas with high yield and high quality, the planting temperature is about 20 every year and 25 every month in summer. The night when the first frost comes is ideal, and both stems and roots may occur. The germination temperature of seeds should not be lower than 12, and the suitable temperature is 18 ~ 25. The optimum growth temperature in bud stage is 20 ~ 30℃. When the temperature exceeds 30℃, the growth is inhibited, but it can withstand the short-term high temperature of 40℃. The temperature was low in the fruiting period, and the accumulated temperature was between 15 ~ 20. Too high or too low growth temperature will affect the water content and growth of cucumber. When the growth environment temperature of Chaenomeles is lower than 5℃, the plants die due to the low temperature in the East China Sea.

Papaya is a heavy crop, which likes cloudy days and medium-intensity light. Strong light will inhibit the normal growth of plants. Papaya likes humid environment, and its growth momentum is weak in arid areas. Therefore, if you want to grow bergamot, you must manage the environmental moisture according to local conditions. Especially in summer, the air evaporates greatly, so it is necessary to water it frequently to keep the humidity of soil and air and promote the safety of plants. Papaya is not strict with soil, and can grow on sandy loam, sunny slope soil and clay. However, in order to obtain high yield and high quality, standard soil with good soil structure, high fertility, looseness and good permeability must be selected. The suitable PH value is 5.5~7.6, but the best pH value is 5.8~6.8. If the soil is too alkaline, we can take anti-alkali measures and use high-quality organic fertilizer to improve the acidity of the soil, so as to obtain higher yield.

There are two main kinds of bergamot cultivated in China, one is green and the other is white. Green-skinned plants have strong growth momentum, thick vines, many fruits, large fruit types, prickly fruits and good productivity, and can take root in suitable cultivation environment. White-skinned plants grow relatively weakly, with slender vines, few fruits and low yield. The advantages are round, smooth and spineless melon shape, white skin, dense pulp and stronger taste.