Current location - Trademark Inquiry Complete Network - Futures platform - Planting time and growth cycle of walnut
Planting time and growth cycle of walnut
Walnut planting time

Origin: Walnut originated in Southeast Europe and West Asia, and was introduced to China in Han Dynasty. Walnuts are distributed all over the country, mostly in the northeast and also in the northwest. Planting time: Autumn planting is the main planting time in the south, generally from the middle of 10 to the late of 1 10, which is suitable for spring sowing in the north and mainly planted after soil thawing. When sowing in spring, the seeds should be soaked in warm water to accelerate germination, and then buried in the soil when the cracks expand.

Walnut growth cycle

1. Fast fruit growth period: generally, it takes 30-35 days from early May to early June, which is the fastest fruit growth period. 2. Shell hardening period: also called hard core period. In the north, it's late June. Nut core-shell gradually hardens from bottom to top, and nuts become tender from paste. The fruit size is basically fixed. 3. Rapid oil conversion period: also called grain filling period. From hard core stage to fruit maturity stage, fruit grows slowly and stops growing in mid-August. 4. Fruit ripening: from late August to early September, all parts of the fruit reached the required size, and the weight of nuts increased slightly.

Cost and profit of walnut planting

1. Annual management fee: the annual administrative and technical management fee per mu of land is 42 yuan. Fertilization, watering and pesticides are calculated at 100 yuan twice a year, and the average harvesting cost is calculated at 200 yuan/mu, totaling 1342 yuan. With the growth of trees, the reduction of management fees and the increase of logging costs can offset each other. 2. Annual benefit analysis: The income from interplanting dwarf cash crops in the field in the first three years made up for the cost of walnut management. The average price of walnuts is 30 yuan/kg, and it began to make profits in the fifth year, with an average of more than 5,000 yuan per mu. Six years later, the walnut trees will enter the full fruit period, scientific management will be in place, and the profit per mu will increase year by year.

Key points of walnut planting technology

1. Light: Walnut is a light-loving plant, and it needs more sufficient light conditions after entering the fruiting period. The annual sunshine hours are more than 2000 hours, which ensures the normal growth and development of walnuts. 2. Soil: The huge roots and trees of walnut first need deep soil layer to ensure their good growth and development. Walnut likes soft and well-drained soil. 3. Base fertilizer: the base fertilizer should be used up as soon as possible after harvest and before defoliation, and the organic fertilizer should be applied to each adult tree about 100 kg. The suitable period of topdressing is before flowering, young fruit expansion period and fruit hard core period.