At present, in many areas of our province, there are problems with the selection of cultivars or the blind development of individual varieties in the process of building a walnut, which leads to low development efficiency and slower efficiency improvement. It is recommended that all regions and large number of fruit growers should put a good variety in the construction of walnuts. , select the appropriate fine varieties, and fine soil preparation and efficient construction, in order to ensure the high quality and high yield of walnut.
First, according to the purpose of building a garden, choose the right variety According to the purpose and purposes of building a garden, walnut varieties can be divided into three types, namely, fruit type, fruit and fruit type, timber type, fruit type is often subdivided into high-quality nuts. Class, fresh food, processing, and processing can be divided into oil and beverage. The majority of the areas south of Yan'an in our province are walnut eugenic zones, while the potential for walnut production in the northern Anhui region is the largest, and it is also most suitable for large-scale cultivation of high-quality nut varieties. Summing up Huanglong's introduction of walnuts and its production practices for more than ten years, the north of the region should use Xiangling as the main plant variety, and focus on the development of the tree species in the Lancang and Apple Derelict Parks; in the drought-sloped land, planting plants with strong resistance can be planted. Nuclear No. 5; In the arable land vulnerable to frost damage, it is advisable to develop late-maturing US varieties of Wiener; and in the land where there is a shortage of land and favorable conditions for water and fertilizer, suitable land for the construction of walnuts can be selected from Liaohe No.1 and Luguang. Variety cultivation.
Second, the careful use of nursery stock, to ensure reliable varieties As the current national walnut cultivation has been in an upsurge, variety confusion, false seedlings will pose a huge threat to the production, if the supervision and management is not effective or blind introduction, often resulting in a certain loss. From the actual situation of walnut cultivation in our province, Xiangling, Shaanxi Nuclear No. 5 and other early-growth varieties have performed well in production, and are also more suitable for cultivation in our province. If the above varieties are properly selected and the purity of the varieties is guaranteed, it will be easier to obtain high yields. However, in some walnut cultivation areas in our province, there are many varieties that have unclear origins, have not been introduced into trials and are formally approved, and they also spur the peasant masses under the banner of dwarf walnuts, thin-skinned walnuts, and early-real walnuts. How many production experience walnut planters suffer losses and detours. Therefore, the walnut seedlings must be carefully inspected and identified before the establishment of the garden to avoid the unreliable seedlings entering the ground.
Third, do a good job in preparatory work before the construction of the park, and improve the level of building a park. According to the spacing standard of 3m, 4m, 3m, 5m, 4m, 5m, 4m, and 6m, a planting pit of 1m, 1m and 1m can be dug. The second is to apply enough fertilizer in planting pits. It is better to dig a pit before the rainy season, and press straw at the bottom of the pit. Each layer of the pit is filled with cow manure, sheep manure, chicken manure, pig manure and other high-quality farmyard manure. After the rainy season, the backfill of large pits will sink, which is conducive to full maturation and adequate maturation of straw and farmyard fertilizers. It will also help raise the survival rate of nursery stocks in walnut construction gardens and ensure that the landscapes are neat and tidy in order to achieve standardized management, standardized production and high-quality and high-efficiency development. Lay a good foundation.
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