How long is the growth cycle of walnuts?

Introduction to Walnut Growth

Walnuts are mainly distributed in Yunnan, Sichuan, Guizhou and other regions. In addition, there are wild Juglans mandshurica and wild walnuts. They are native to southeastern Europe and western Asia and are distributed throughout the country, including North China, Northeast China and Northwest China.

Walnut growth cycle

The walnut production has been doubling year by year. It reaches the initial fruiting period after 5 years, the peak fruiting period after 10 years, and the prosperous fruiting period after 20 years. It is a deep-rooted tree species with a deep taproot, wide horizontal lateral roots, and slender and dense fibrous roots.

It usually takes half a year for a walnut to grow from germination to fruit maturity, with germination in March, pollination in April, fruiting in May, oil accumulation in June, July and August, and harvesting in September.

Walnut growth rate

According to the growth and development performance of walnut in one year, it can be divided into germination period, flowering period, bud growth period, fruit growth period, leaf fall and latent period.

The rapid growth period of the fruit is generally from May to June, which takes 30 to 35 days. The shell hardens in June, the fruit size is determined, nutrients begin to accumulate rapidly, and the rapid oil conversion period stops in early to mid-August. The fruit matures from August to September, and the green skin gradually turns yellow-green or yellow.

Temperature management : The average annual temperature suitable for walnut growth is between 8 and 15°C, the lowest growth temperature is not lower than -30°C, and the extreme maximum temperature is 38°C. When its growth temperature exceeds 38 to 40°C, the fruit is easily burned.

Fertilization management : When planting walnut trees, you need to apply base fertilizer. The rooting and germination of the plant have a lot to do with the planting land. When the walnut trees enter the bud stage, start applying topdressing. When the walnut trees enter the bud stage, start applying topdressing.