Cherry is weak in cold resistance and likes warm and humid climate, so it is suitable for cultivation in the place where the annual average temperature is 15 ~ 16℃.

Northeast China spans the middle temperate zone and the cold temperate zone from south to north, belonging to temperate monsoon climate, with four distinct seasons, warm and rainy in summer and cold and dry in winter. From southeast to northwest, the annual precipitation decreases from 1000 mm to below 300 mm, and it transits from humid area and semi-humid area to semi-arid area. The high forest coverage in Northeast China can prolong the melting time of ice and snow, and forest snow storage is helpful to the development of agriculture and forestry.

Extended data:

I. Planting techniques

Planting density should vary according to varieties, rootstocks and soil conditions. On the fertile and flat land, China cherries are planted in a Y shape with a density of1× 3m and 220 plants per mu. If natural clumping or natural happy shaping is adopted, it can be planted at a density of 2 ~ 3m× 3 ~ 4m. The density can be appropriately increased in the young age, and thinning measures should be taken after the garden is completed.

Planting time is generally divided into autumn and spring. It should be planted in cold, dry and windy areas of Yichun in winter and before seedling germination in spring. It can be planted in warm places in winter and autumn.

Before planting, the soil should be deeply turned and cooked, and planting holes should be dug. Apply 25-50kg organic fertilizer to each hole. After mixing fertilizer with soil, plant seedlings and water the roots immediately.

Second, the soil in Northeast China

Surrounded by mountains and fertile fields, it is the basic feature of the ground structure in Northeast China, and the soil quality is mainly black soil, which is the natural basis for forming a large economic zone. South is the Yellow Sea and Bohai Sea, east and north are surrounded by Yalu River, Tumen River, Wusuli River and Heilongjiang, and only the west is the land boundary. The inner side is the mountains, Zhongshan and low hills of Daxing 'anling, Xiaoxing 'anling and Changbai Mountain, and the middle part is the vast Songliao Plain and Bohai Depression.

The proportion of plain area is higher than that of the whole country, and the total area of northeast plain (which can be divided into Songnen plain, Liaohe plain and Sanjiang plain), Hulunbeier Gaoping plain and mountainous flat land is almost equal to that of mountainous area; The land suitable for reclamation in Northeast China is about 6,543.8 billion mu, with great potential. The grassland of Mengdong 5 League in the west of Northeast China is dominated by animal husbandry.

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