Can winter jujube in Weinan, Shaanxi be planted in Henan?

1. Shaanxi Weinan winter jujube can be planted in Henan.

Second, the weather characteristics of Weinan, Shaanxi Province

Weinan has a warm temperate semi-humid and semi-arid monsoon climate with four distinct seasons, abundant sunshine and suitable rainfall. Frost-free period 199-255 days, with changeable climate in spring, hot and rainy in summer, cool and cool in autumn and sunny, cold and dry in winter. The annual average temperature is 12- 14℃, the annual rainfall is about 600 mm, and the annual sunshine is 2200-2500 hours. Excellent climatic conditions are conducive to the development of agriculture, but summer drought, autumn waterlogging and summer dry-hot wind have an impact on crops.

Third, the climate in Henan.

Henan has a warm temperate-subtropical, humid-semi-humid monsoon climate. Generally speaking, there is less rain and snow in winter, more wind and sand in spring, plenty of hot water in summer and sunny autumn. The average annual temperature in the whole province is generally between 12℃- 16℃, 1 month between -3℃-3℃, and July between 24℃-29℃, which is generally high in the east and low in the west, high in the south and low in the north, with obvious differences between mountainous areas and plains. The diurnal range of annual range is large, and the extreme minimum temperature is-2 1 .7℃ (1951year1month 12, Anyang). The extreme maximum temperature is 44.2℃ (1June 20th, 966, Luoyang). The frost-free period of the whole year is 180-240 days from north to south. The average annual precipitation is about 500-900 mm, with more mountains in the south and west, and the Dabie Mountains can reach more than1100 mm. 50% of the annual precipitation is concentrated in summer, and there are often heavy rains.

Fourth, growing habits

Secondary Growth Habits of Winter Jujube

Winter jujube has the habit of secondary growth, and the flowering period is around early June. Its early flowering and early fruiting are strong.

The main bud of winter jujube has strong germination ability.

When winter jujube is cut, only the main branch of jujube head is cut short, and the main bud at the base of the cut secondary branch can also grow new jujube head. Therefore, when pruning winter jujube in winter, except for some drooping and especially flat branches, only the main branches of jujube head are generally cut short, which can achieve the purpose of crown expansion, early fruiting and high yield. At the same time, under normal growth conditions, most of the top dust main buds of jujube rootstocks can extract jujube heads, which is beneficial to fill the space of trees and increase the fruit-bearing area. However, due to vertical growth, most of them will grow white and consume a lot of nutrients in the tree, which is not conducive to fruit setting. Therefore, when pruning in summer, these jujube heads should be controlled. If there is room for growth, 2 ~ 3 secondary branches should be left, and if there is no room for growth, only the jujube tree at the base should be hung for re-coring.