Can be planted, play walnut is hickory wild walnut, divided into the southern iron walnut, Northeast rowan walnut, Beijing, Tianjin, Hebei and Shanxi hemp walnut, so the north can be planted.

1. Soil management:

Soil is one of the important environmental conditions for the growth of walnut trees. Soil condition and management level, constrains the growth and fruiting of walnut trees. In order to promote the growth of young trees, each year to carry out a number of plowing and weeding and loosening, reduce soil moisture evaporation, improve soil aeration, promote the decomposition of soil insoluble nutrients, improve soil fertility. Generally every year during the growing season to do "grass must be removed, after the rain must be hoeing, irrigation must be hoeing". If the manpower is not enough, there are two weeding must be carried out every year, one is after flowering, one is before the volts, the two weeding should not only timely, and should be deep hoeing. This can effectively control the grass, to loosen the soil water retention purpose.

2. Garden fertilizer:

Organic fertilizer that is stable manure, composted manure, human waste, cake fertilizer, green manure and so on. Organic fertilizer contains a full range of nutrients, not only contains nitrogen, phosphorus, potassium main elements, but also contains a variety of trace elements, organic fertilizer fertilizer, and long-lasting, improve soil structure, regulate the role of soil temperature. Annual fertilization should be based on organic fertilizers. Walnut orchards are mostly mountainous, hilly, thin soil, organic matter content is lower, in order to ensure high and stable production of walnuts, each year should increase the application of a large number of organic fertilizers.

3. Fertilization period:

Walnut in the whole growth period, constantly absorbing various nutrients in the soil. Its absorption of nutrients, in a year, at different ages is not balanced, it has the most absorption of the critical period. Generally in mid-August to October, the soil moisture condition is also better, the root system is in the peak of autumn growth activities, the tree accumulates and stores more nutrients, which is conducive to growth and results. Autumn application of organic fertilizer can improve soil porosity, conducive to the orchard snow and moisture conservation, to prevent winter and spring soil drought, and can improve ground temperature, reduce inter-root freezing.