Walnut seedlings should be planted with mature walnuts. The selected walnut seeds should be soaked 7 ~ 10 days before sowing. When processing, the selected walnut seeds are soaked in cold water, changed in water every day, taken out after soaking for 2-3 days, exposed in the sun for 1-2 hours, and soaked again. After 7 ~ 10 days, the seeds can be completely cracked and can be planted at this time.

2. Soil treatment

Walnut is a deep-rooted tree species. Before sowing, we should deeply cultivate the soil and create loose soil conditions to lay a good foundation for the robust growth of seedlings. Generally speaking, the farming depth should be between 30 and 40 cm. Combined with deep ploughing, 4,000-5,000 kg of soil miscellaneous fertilizer and 0/5 kg of urea/kloc were applied per mu, and impurities such as stones and grass roots that affect the growth of walnuts were picked out at the same time, and finally leveled into seedbeds. Generally, for the convenience of operation, the seedbed should be connected into a frame with a width of 1 ~ 1, 5 meters and a length of 65438+.

Step 3 sow at the right time

Walnut seeds can be planted in autumn or spring, and autumn seeds do not need to be treated. Generally, it is advisable to sow from the end of 65438+ 10 to the beginning of 165438+ 10, and the earlier frozen soil is, the better. Spring sowing should be postponed appropriately after the soil thaws, and the ground temperature will rise and germinate quickly. It is generally advisable to sow in early April in Longdong area.

4. Sowing method

Walnut seeds are large, and the method of ditching and sowing is usually used. Generally, the furrow spacing is maintained at 30-50 cm, and the furrow depth is 5-8 cm, with sowing per 1 2-15 cm/grain. When sowing, the suture line should be vertical to the ground, which is beneficial to seedling emergence.

Step 5 cover the soil

It is advisable to cover the soil with 5 ~ 7 cm after sowing. The soil layer is too thin and easy to air dry, which affects the emergence of seedlings. Walnut is too thick and easy to rot, which is not conducive to seedling emergence.

Extended data:

Main value

I. Nutritional value

Walnut is rich in nutritional value, and has the reputation of "Long live the son", "longevity fruit" and "treasure of health preservation". 86% of the fat in walnuts is unsaturated fatty acid. Walnut is rich in copper, magnesium, potassium, vitamin B6, folic acid and vitamin B 1, and also contains fiber, phosphorus, nicotinic acid, iron, vitamin B2 and pantothenic acid. Every 50g walnut contains 3.6% water, 7.2g protein, 3 1g fat and 9.2g carbohydrate. ? [

Second, the medicinal value

Sweet, slightly warm, nontoxic, slightly bitter and slightly astringent.

Walnut is sweet and warm, and enters the kidney, lung and large intestine. It can tonify kidney, strengthen waist, warm lung, relieve asthma, moisten intestine and relieve constipation.

Indications: cough, asthma and lumbago due to kidney deficiency; (wood sandwich in the core) tastes bitter and warm; Tonifying kidney and astringing essence.

1. Removing blood stasis: used for blood stasis amenorrhea, blood stasis abdominal pain, blood stasis mania, traumatic injury and blood stasis block.

2. Runchang laxative: it is difficult to solve the stool used for constipation. This product can relieve bitterness, disperse blood stasis, enter the liver meridian and divide blood, and has strong effects of promoting blood circulation, regulating menstruation, removing blood stasis and promoting tissue regeneration, and is suitable for patients with severe blood stasis. In addition, it also has the function of moistening intestines and relieving cough.

References:

Baidu encyclopedia-walnut [