Kumquat, also known as kumquat, for the Brassicaceae kumquat genus of evergreen shrubs, native to the south of China's two GuangZhou, Fujian and Zhejiang areas, in the north are to do potted plants. Kumquat flowering in early summer, late fall fruit ripe, is a set of flowers and fruit in a potted flower. First, pots and potting soil selection of potted kumquat, should choose a good air permeability of the soil tile pots, the bottom of the pot with broken tiles to do a good job of drainage layer, in order to facilitate drainage; potting soil selection of good permeability, more fertile, slightly acidic or neutral sandy loam, available five parts of the rotting soil, three parts of the garden soil, two parts of the fine river sand preparation of the cultivation of the soil, it is best to disinfect the spraying before use. Second, light and temperature control kumquat like light, but afraid of strong water, too strong light is easy to burn the leaves. Spring can be placed in a windy and sunny place, summer in the shade under the dill, especially to avoid direct light at noon, so that it can accept the sunlight before 9:00 a.m. and after 5:00 p.m., early fall also need to cover 30% of the light, the end of the fall and winter should be placed indoors to the sun, so that it is fully exposed to the light. Kumquat like warm, late fall temperatures below 10 degrees Celsius should be moved indoors in a timely manner, the best room temperature in winter can be maintained at 6 to 12 degrees Celsius, the temperature is too low is susceptible to freezing, too high will affect the plant dormancy, is not conducive to the next year's blossoms and fruits, the spring can be appropriate to open the windows after the Qingming ventilation, so that it is gradually adapted to the outdoor temperatures, rainy season before going out of the room; in the summer, it should be placed in the shade of the ventilated, should also be sprayed frequently to increase humidity to lower the temperature. The water should also be sprayed frequently to increase humidity and cool down the temperature. Third, the management of water and fertilizer kumquat like moist, but afraid of flooding. To kumquat watering, spring out of the room to early summer flowering every three or four days watering, usually keep the pot moist, young fruit after the period of high summer temperatures, can be watered once a day watering, lack of water not only leads to wilting leaves, but also easy to make the fruit off. Rainy days should be avoided, such as rain should be promptly poured out the water in the pot. Fall with the lowering of temperatures, plant transpiration is also reduced, the number of times and the amount of watering should also be reduced, can be about four days to water a thorough watering, this time the water is easy to lead to plant root rot; winter indoors can be every seven days to water a thorough watering. Fertilizer to kumquat, it is best to use liquid fertilizer, spring out of the room to the bud (mid-April to early June) can be applied every seven days of liquid fertilizer, flowering to young fruit (early June to early July), every five days of liquid fertilizer, after sitting fruit to the fruit growth period (early July to the end of September) every ten days of liquid fertilizer. To kumquat applied by sesame paste residue and horseshoe slice mixed with water soaked in acidic liquid water, the best results, can make the plant grow vigorously, fruit more, big, bright color. Fourth, potting and pruning kumquat generally about three years to change a pot, the time is out of the room in late April, first knocked off the plant from the pot, with scissors to the outer layer of too dense roots cut off. The size of the new pot depends on the growth of the plant, such as good growth should choose a large pot, the bottom of the pot also need to use broken pot pieces to make a good drainage layer, pad a layer of soil into a few pieces of horseshoe tablets, another layer of soil, and then put the plant on the soil, filling the soil while compacting, and finally watered once thoroughly, placed in the shade. Kumquat pruning, generally in the pot and after the fall pruning once, spring pruning should be heavy cutting, mainly pruning too dense branches, drooping branches, dead branches, pruning at this time should also pay attention to the plant modeling, so that the plant to form a "three forks of nine tops" of the situation, so that the crown grows into a rounded head shape, the previous year's summer and autumn tips should be appropriate to cut the short, and retain only three or four buds. Three or four buds. Autumn pruning, mainly pruning slender branches, endogenous branches. In addition, in the young fruiting period for fruit thinning is also very necessary, according to the growth of the plant, each branch to retain three to five fruits, the rest of all removed, so that not only left the fruit to grow large, but also enough nutrients for the growth of the plant, to prevent the fruit is more, consume too much nutrients.