Planting should pay attention to the configuration of pollination trees. When developing walnuts, most people will ignore the problem of configuring pollination trees, which is one of the main reasons for the low yield of walnuts. Walnut flower buds are divided into female and male. The flowering time of the same species of female and male flowers is often inconsistent. Generally, the difference is 6-7 days. The longest difference is nearly 10 days, causing the flowering period to be absent, so the walnut falling flowers and fruit are very serious. It has been observed that some varieties of male flowers are first opened, and some varieties of female flowers are first opened. If more than two varieties are planted in the same garden, the problem of fruit set can be solved due to the lack of flowering time.
It is not suitable for small walnuts to be planted after planting. It should be grown in the garden for nearly 100 years, so the tree pit must be excavated for length, width and depth of 111 meters, and when backfilling, in the deepest 20 cm soil layer at the bottom of the tree pit Add 25 kg of organic fertilizer. Digging a large planting hole is very beneficial to root growth and development. The application of organic fertilizer in the hole can guide the root system to deep growth and enhance the cold resistance and drought resistance of the tree. At present, the cultivation of walnut planting points only excavates length, width and depth of 0.50.50.5 meters or 50-60 cm groove with machinery. It is not advisable to plant walnuts, because it is not only for survival, but also to make the results, and early Results, multiple results, good results, long-term results. Especially the digging of small planting holes in clay is one of the important reasons for the roots, yellow leaves and dead trees of walnut young trees. Therefore, the planting of acupoints should not be small, and the purpose of improving the soil can be achieved by digging the planting points, which also lays a foundation for future high yield.
The selection of excellent varieties of walnuts results in the morning and evening, quality and good quality, high yield traits are mainly determined by the variety. In some areas, walnuts are mostly used for live breeding, and the results are only 7-8 years after the general species. At present, China has selected a number of excellent varieties, and adopted grafting to cultivate seedlings, which can maintain the characteristics of excellent varieties intact, but the price is 2-3 times that of seedlings. At present, there is still a phenomenon of selling and seedlings in the market. Some fruit farmers do not know the truth. After 5-6 years of purchase, they still have no results. Therefore, the development of walnut planting must choose excellent varieties. It is recommended to use the excellent varieties such as Zhonglin, Liaosu, Jinlong, thin shell and gift walnut.
The main root of the roots of the roots is particularly developed, while the lateral roots are very weak and resemble radishes. In order to promote the growth of the lateral roots, the main root must be cut before planting, and attention should be paid to protect the lateral roots to prevent water loss and dryness, otherwise it will affect the survival of the seedlings. The best method is to excavate the seedlings in time for timely planting. When transporting the seedlings, the roots should be muddy. Before planting, the roots should be soaked for 12-24 hours to make the plants fully absorb water. It is best to soak them with rooting powder water. Effective measures for survival rate.
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