1. The annual rainfall suitable for cherry growth is generally 700 ~1000 mm.. The annual average precipitation in tongren city is1110-1410mm.
2. The chilling requirement for complete dormancy of sweet cherry is below 7.2℃ 1 100 ~ 1300 hours. Sour cherry needs 1200 ~ 2500 hours. The annual average temperature in tongren city is 13.5- 17.6℃.
Second, the living habits of cherries
1, China 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℃. Sweet cherries like to be cold and dry. The natural sleep period of cherry is about 80 ~ 100 days. The chilling requirement for complete dormancy of sweet cherry is below 7.2℃ 1 100 ~ 1300 hours. Sour cherry needs 1200 ~ 2500 hours. China cherry has a short dormancy period, and it is easy to germinate when the temperature warms up in late winter and early spring. In case of "late spring cold" (frost or snowfall), the flower organs are frozen, which seriously affects the yield and even fails to harvest the granules. Therefore, in the development, we must pay attention to whether the time when the local cold wave strikes in spring coincides with the flowering period, and we can't plant cherries in places where adverse weather (frost, snowfall, strong wind) occurs all the year round. Even in places where disastrous weather rarely occurs, it is necessary to choose suitable small terrain for planting when building gardens.
2. The annual rainfall suitable for cherry growth is generally 700 ~1000 mm.. How to solve the problem of "early spring" should be fully considered when building gardens in some areas in the south. Because in the early stage of fruit growth, drought will cause serious fruit drop and affect fruit growth and development.
3. Cherry is a light-loving tree species. China cherry is more shade-tolerant, but it has good illumination, early fruit ripening and good coloring.
4. Cherry is suitable for cultivation in deep, fertile and loose sandy soil. The pH value of soil is generally 6.0 ~ 7.5.
5. The vertical distribution of cherry roots in China is generally concentrated in the soil layer about 20 cm deep, which requires loose soil and good irrigation and drainage conditions. Heavy clay is not suitable for planting cherries. Because cherries are not resistant to transportation, the garden should be built in a place with convenient transportation.
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.
6. Planting time is generally divided into two periods: 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.
7. 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.
Third, the climate of tongren city.
1, tongren city belongs to subtropical monsoon humid climate zone, and its climate characteristics are mainly manifested in obvious monsoon climate and obvious vertical climate difference.
2. Annual sunshine hours 1044.7- 1266.2 hours, annual average temperature 13.5- 17.6℃, and daily average temperature >; The first day of 10℃ is in late March, all day165438+1early October, with an interval of 250 days, and the accumulated temperature is 5300℃.
3、 ? The annual average precipitation is1110-1410 mm, and the frost-free period is 275-3 17 days, with sufficient heat, suitable illumination and abundant precipitation. Most areas are mild and humid, and the vertical change of climate between valleys is obvious, which has the climatic characteristics of "one mountain with four seasons and ten miles of different days". There is no cold in winter, no heat in summer, rain and heat in the same season, and things are moistened silently.