Can ivory awn be planted in Chongqing?

First, ivory awn can be planted in Chongqing.

Second, the growth characteristics

1, the ivory mango tree is vigorous and powerful, with a tall upright tree and a conical crown. The branches are long and thick. The leaves are oval-lanceolate, the fruit is oval, and the top is curved like ivory. The fruit is large and weighs about 500 grams. The edible part is 78%, containing soluble solids 14%- 16%. 2. The pulp is orange, tender and firm, with little or no fiber and sweet taste. The flowering period is from late March to late April. The fruit ripens from late June to early August.

Third, the growth environment

(1) Temperature: Mango likes high temperature, but is not cold-resistant, and it is even more taboo to have drizzle at low temperature during flowering. The effective temperature of mango growth is 15-35℃, and the optimum temperature is 24-27℃. Only when flowering is above 20℃ can pollination and fertilization be normal. When the temperature is lower than 20℃, the anther will not crack and the pollen will not germinate, which will affect the results. Small trees can freeze to death at -3℃, and big trees will be severely frostbitten. Therefore, the local temperature is the limit that determines the suitability of mango planting. According to some data, the northern boundary of mango introduction in China is 27 43' north latitude (Pingyang, Zhejiang), but generally speaking, the Tropic of Cancer in China is the northern edge of mango economic cultivation. As for going further north, it depends on the meteorological conditions in this place and whether there are conditions for economic planting.

(2) Moisture: Mango is drought-tolerant, but not waterlogged. Generally, it can be planted in places with annual rainfall above 700 cm. Sufficient water will make the nutritional growth of mango too strong, which is not conducive to flowering and fruiting, and will also aggravate the breeding and harm of pests and diseases. However, if the soil is too dry, it will cause flowers and fruits to fall. Long-term drought and showers during fruit development can also lead to mango fruit cracking. Moderate drought in the critical period of flower bud differentiation is beneficial to stop the growth of branches and make flower bud differentiation. The environment with sunny weather, relatively little rainfall and irrigation conditions at flowering stage is an ideal planting area for mango.

(3) Illumination: Mango likes warm and bright sunshine, and sufficient sunshine is very beneficial to the growth and fruit of mango. The flowering period is characterized by strong sunshine, warm weather and low relative humidity, which is beneficial to pollination and fertilization, high fruit setting rate, bright color, strong fragrance and storage resistance. Northbound orchards are prone to diseases and pests because of poor light and low yield. ?

(4) Soil: Mango is not very strict about soil texture. Except for extremely barren saline-alkali land, all kinds of soil can be planted from alluvial soil to latosol. Because mango is a deep-rooted fruit tree, it is required to be planted on a plot with deep soil layer, good drainage and low groundwater level. Because it is a mycorrhizal plant, the soil is required to be rich in organic matter and breathable, and the suitable pH value is 5.5-7.0. If the soil pH value exceeds 7.5 or is lower than 5, it will affect the growth and development of plants.

The climate of Chongqing is 1. Chongqing has a mild climate, which belongs to subtropical monsoon humid climate. The annual average temperature is 16~ 18℃. Banan, Qijiang and Yunyang in the Yangtze River Basin reach 18.5℃ or above, and Qianjiang and Youyang in the southeast reach 14. Chongqing is rich in annual average precipitation, which is 1 0,000 ~1350 mm in most areas. Most of the precipitation is concentrated in May-September, accounting for about 70% of the annual precipitation. 2. The average annual relative humidity in cities is mostly 70%~80%, which belongs to high humidity areas in China. The sunshine hours in the whole year are 65,438+0,000 ~ 65,438+0,400 hours, and the sunshine percentage is only 25%~35%, which is one of the regions with the least sunshine in China, with less sunshine in winter and spring, accounting for only about 35% of the whole year. The main climatic characteristics can be summarized as follows: warm winter and early spring, hot summer and cool autumn, four distinct seasons and long frost-free period; The air is humid and the precipitation is abundant; Weak solar radiation and short sunshine time; There are more clouds and less frost and snow; Light and warm water are in the same season, with remarkable stereoscopic climate, abundant climatic resources and frequent meteorological disasters. 3. Under the dual effects of topography and climate, Chongqing is foggy, and is known as "Fog Capital Chongqing" and "Fog Capital". The average annual foggy days in Chongqing are 104 days, while London, which is known as the foggy capital of the world, has only 94 days, and Tokyo, Japan, which is the foggy capital of the Far East, has only 55 days. Wuyun in Bishan District of Chongqing has 204 foggy days a year, which is known as "the best in the world".