Leijiadian thin-skinned walnut

Leijiadian thin-skinned walnut is famous at home and abroad for its thin skin, thick meat and rich nutrition. It is known as the "first township" of walnuts in China, and its sales price has been rising year by year. In recent years, it has reached more than 50 yuan per catty, which is still in short supply. The producing areas of thin-skinned walnuts in Leijiadian County are Leijiadian Township, Erdaowanzi Mongolia Township, Niangniangmiao Township, Datun Township, Heshangfangzi Township, Yangmadianzi Township, Guzhangzi Township, Bajiazi Township, Linglongta Township, Xiaodeyingzi Township, Yaowangmiao Township, Bashihan Township, Yangshuwanzi Township, Siu Chu Yingzi Township and Tangshenmiao Town, all of which are under the jurisdiction of 15 townships. Quality and technical requirements of thin-skinned walnut in Leijiadian 1. Variety Liaoning No.1, Gift No.1, etc. Second, the site conditions are 200m to 600m above sea level, the soil layer type is sandy loam, light loam or medium loam, the organic matter content is ≥1.0%, and the pH value is 6.5 to 8.0. 3. Cultivation management 1. Seedling raising: rootstocks are grafted with spikes to form commercial seedlings, which are planted in spring or autumn, with spring planting from late March to late April before the soil thaws and autumn planting from October to November before the soil freezes. 2. Pruning and shaping: after the fruit is harvested, it will be carried out before defoliation or after sprouting and spreading leaves in spring. Autumn pruning is suitable for fruiting trees, and Kechun pruning is suitable for young trees. 3. Flower and fruit management: when the male flower buds of the tree begin to expand in the full fruit period, the male flowers are thinned, and the thinning amount is 90% to 95% of the male flowers of the whole plant. 4. Harvest: from September to October, the involucre (green husk) turns yellow-green, and more than one third of the green husk of the fruit is harvested when it naturally cracks or falls off. 5. Environmental and safety requirements: The use of pesticides and fertilizers must comply with the relevant national regulations and must not pollute the environment. 4. Processing 1. Peeling: Peeling by stacking or peeling with chemicals. 2. Cleaning: Wash walnuts in time after peeling to remove surface impurities. 3. Drying: after rinsing, air drying and spreading, the thickness of the fruit shall not exceed two layers. 4. Storage: select a cool, dry, ventilated and backlit environment. Five, quality characteristics 1. Sensory characteristics: thin skin, clean shell surface, natural yellow and white. The suture line is tight, approximately round and uniform in size. The kernel is full, the kernel skin is yellow-white or amber, and it has the inherent fragrance of walnut. The taste is crisp, astringent and light, and the whole kernel is easy to take. 2. Physical and chemical indexes: transverse diameter ≥28.0 mm, average fruit weight ≥8.0 g, shell thickness ≤1.3 mm, kernel rate ≥48.0%, empty shell fruit rate ≤2.0%, moisture content ≤8.0%, fat content ≥63.0% and protein content ≥11.0%. 3. Safety and other quality and technical requirements: product safety and other quality and technical requirements must comply with relevant national regulations. Leijiadian thin-skinned walnut is a geographical indication protection product.
Reprinted with attribution： https://cnlocality.com/(Chinese Specialty Products)