I go to Ningyang every summer vacation. Today, let's go! The wheels galloped all the way. I feel my heart flying, too. Soon, I came to Ningyang District and felt very cordial. Not far away, there is a green land, like a flawless jade embedded in brown land. On both sides of the road are rows of poplars, as if to say, "We are strong sentries, and we want to protect the land of Ningyang." The neat and beautiful green belt is like the nepotism of two fairies, which makes expressway very beautiful. From a distance, the traffic in expressway is busy and people come and go. This is really a bustling city.
There is also a mountain called "Sleeping Beauty" in Ningyang. The whole mountain is like a sleeping girl. This "sleeping beauty" has a good posture, so this mountain is named Sleeping Beauty.
What haunts me most is the beach in Riverside Park, which attracts countless friends to visit. With my rich imagination, I made a canal out of rough and wet sand, piled it into a city and built a castle. How interesting!
Ah! Ningyang, your beauty and your color make me unforgettable. I love you Ningyang.
Ningyang jujube is a specialty of Tai 'an area. Because of its delicate pulp and sweet taste, it sells well all over the world. The famous Taian tooth jujube at home and abroad is processed from it. Compared with other economic trees, jujube trees have tenacious adaptability, so they are known as "hardcore crops".
Let's talk about the root system of jujube, which consists of horizontal roots, vertical roots, lateral roots and fibrous roots. Horizontal roots and vertical roots are the skeleton of jujube root system. The main roots and lateral roots of jujube are very strong, and its horizontal roots are more developed. Strong ductility, wide distribution range, generally 2-6 times larger than the crown. Because of its long elongation, it is called "row root" and "chord root". Its main function is to expand the scope of root system, increase the absorption area and produce root-sensitive seedlings. Horizontal roots are mostly distributed in topsoil, especially in the depth of 15-30 cm, and some roots can grow even if they are exposed in rock crevices. In the responsible field of a member of Zhouzhuang Village, there is a jujube tree that is older than One Happy and Fifty years and grows in the gap of the weir. Four horizontal roots with a diameter of about 10cm are partially exposed, but they still grow vigorously, with a height of 19m, a crown diameter of 13m, a trunk diameter of 47.2 cm and a yield of about 350 kg per plant. The buds, branches and flowers of jujube trees have also played a very good role in promoting the growth of "hardcore crops".
It is precisely because it has such a developed and absorbent root system that it can be planted and grown on plains, floodplains, hills and barren hills. It is suitable for weak alkaline and neutral soils as well as weak acidic soils. Not only that, it is also resistant to heat, cold, waterlogging and drought. Although jujube is native to temperate zone, it can tolerate high temperature of 40℃ and low temperature of -30℃ during dormancy. China east longitude 76? - 124? , 23 north latitude? -42? Within the scope, it is also cultivated in cold zone and tropical zone. Jujube trees have strong adaptability to humidity. For example, if the annual precipitation in the south is above 1000mm, the precipitation in the north is 400-600 mm, and the precipitation in Gansu in the northwest is around 100mm, jujube trees can grow and bear fruit. In the Book of Qi Yao Min, it is recorded that anyone who doesn't cultivate on the land of drought and flood can plant dates. This shows that jujube trees have been considered to be adaptable and easy to cultivate since ancient times.
? Jujube trees germinate late, bloom late and shed leaves early in a year, which can avoid natural disasters and the threat of early frost and late frost. Jujube trees are also strong in stress resistance, generally there is no difference between big and small years, because jujube flower buds have the characteristics of differentiation in the same year, multiple differentiation, germination in the same year, short differentiation time for single flower and long differentiation time for the whole tree (up to 2-3 months). If there is a disaster in early spring, if more fertilizer is applied, it will sprout, blossom and bear fruit, and there will still be a good harvest.
"Peach has three apricots and four pears for five years, and jujube trees bloom that year." This proverb strongly shows that jujube trees have the characteristics of early fruiting, and some can blossom and bear fruit in the same year of planting. However, young trees generally begin to bear fruit in 3-4 years, and enter the full fruit period in 10, which lasts until forty or fifty years. Trees that are 70 or 80 years old can still produce high yield. Trees are 300 to 500 years old and live 1000 years old or older. There is a 200-year-old tree at the entrance of Gushu Village, with a yield of more than 250 kilograms per plant. There is a jujube tree in Zhouzhuang, which yields more than 500 kilograms per mu.
After thousands of years of long-term cultivation and continuous selection by human beings, many varieties have evolved. The main cultivated varieties in Ningyang County are Zizyphus jujuba, Zizyphus jujuba and Zizyphus jujuba. Jujube has hard wood and fine texture, and can be used as raw materials for crutches, carvings, boats and cars, wooden combs and furniture. It is not only suitable for garden cultivation, but also suitable for garden cultivation. Is a good helper to get rich! In Geshi, a rich area in Ningyang, every family has jujube trees. Every autumn festival, under the moonlight and jujube trees, people eat moon cakes and taste fresh and crisp jujube, which really has a unique flavor.