Greenhouse vines two ripening cultivation techniques Walnut cultivation techniques
First, the requirements of walnuts on environmental conditions
1. The temperature walnut belongs to the thermophilic tree species, and the suitable temperature range and frost-free period are: the annual average temperature is 9 degrees - 16 degrees, the extreme minimum temperature is minus 25 degrees - negative 2 degrees, the extreme maximum temperature is below 38 degrees, and the frost period is 150 Days below.
2, light walnut light hi. After entering the result period, more lighting conditions are needed. The sunshine hours of the whole year must be more than 2000 hours to ensure the normal growth and development of the walnuts. If less than 1000 hours, the nuclear shell and nucleoli are all poorly developed. In the cultivation, from the choice of the garden, planting density, cultivation methods, and pruning, all must consider the lighting problem.
3. Soil Soil is the base for the growth and development of all plants. Walnut's huge roots and trees first require a deep layer of soil (greater than 1 meter) to ensure its good growth and development. The walnuts are loose and well-drained, and grow poorly in the soil where the groundwater level is too high and the clay is heavy. It grows best on calcium-containing slightly alkaline soils. The suitable range of soil pH value is 6--8, which has a strong effect on growth. Good fertilizer of walnut requires fertile soil and high organic matter content.
4, moisture walnut resistant to dry air, but the soil moisture is more sensitive to the soil too dry or too wet are not conducive to the growth and solidity of walnuts. Therefore, it is necessary to adopt soil and water conservation engineering measures in the mountain and walnut gardens, and to solve the drainage problem in the plains.
Third, planting methods should be based on site conditions, cultivars and management levels vary. In general, the principle of high yield, stable production, and easy management should be achieved in terms of unit area. For early eating walnuts, due to its early results, the tree body is smaller, 23 meters or 24 meters plan dense planting can be used, when the tree canopy closed poor light, can be planned to cut into 56 or 78 meters.
IV. Planting Techniques Improving the survival rate of planting and planting young trees is an important part of building a walnut garden. It is also a basic work to achieve strong trees, early food, and high yield. It is necessary to ensure the quality of planting in order for the young trees to grow robustly and smoothly. The development stage lays a good foundation for increasing production.
1. Site preparation: Prepare the soil for ripening and increase fertility in advance. The general site preparation specification is 808080cm. After the planting hole is dug, the topsoil and soil dung are mixed and filled into the bottom of the pit. The lower soil and quick-acting fertilizer are placed in the middle of the pit.
2. Seedlings: Only high-quality nursery stock can effectively use the cultivation conditions to achieve multiple results. Requires pure seedling varieties, complete root and lateral roots, no pests, and strong resistance to stress. It is best to have a 2- to 3-year-old seedling, with a seedling height of more than one meter, a dry diameter of not less than one centimeter, and more fibrous roots to ensure survival and robust growth.
3. Planting Techniques: Before planting walnut seedlings, the roots and roots of the seedlings should be cut off and then soaked in water for a long time, or the roots should be soaked with mud to make the roots absorb enough water to facilitate survival. Then nest the nest in the middle of the entire pit. The size of the nest depends on the planting seedlings. When planting, Miaozheng should be used to stretch the root system, stratified filling should be practical, and the roots should be evenly distributed. The soil should be leveled with the ground. After full-fledged work, the tree plate should be shot and fully filled with water. After water infiltration, cover with fine soil. It is about 20cm above ground level. Seedling planting depth can be slightly more than the depth of the original seedlings, but the grafting interface must be exposed outside, and then watered again seven days after planting.
China Academy of Agricultural Sciences Zhengzhou Fruit Research Institute (Xuan)
0371-66382323
013673951810 (Mr. Xiao)
Sodium Erythorbate,Sodium Erythorbate Powder,Food Additives Sodium Erythorbate,Antioxidant Sodium Erythorbate
SHANDONG BAISHENG BIOTECHNOLOGY COM , https://www.baishengbioproducts.com