What kind of land is needed for planting walnut saplings

SummaryFor planting walnut saplings, you cannot choose saline-alkali land or planting areas with a pH between PH6.2-8.2, nor can you plant in plots with a shallow water table, weathered sandstone areas, areas with relatively thin soil, or rocky hill areas with a low height of less than 1 m. The plots and land recommended for planting walnut saplings should have the following characteristics: gentle slope, leeward direction, long exposure to sunlight, and a minimum temperature not lower than -20°C.

I. Land requirements for planting walnut saplings

1. Walnut saplings cannot be planted in saline-alkali land. Walnut saplings cannot be planted in planting areas with a pH between PH6.2—8.2 or in saline-alkali plots, because this easily causes slow plant growth and makes them prone to disease infection, and in severe cases can even cause the plants to wither and die.

2. The suitable pH for growth is between 6.2-8.3 (in the south, a pH between 5.3-8.2 is sufficient). Too high a soil salt content will affect the growth and development of walnuts. When the salt content is below 0.25%, it will not affect growth, development, or yield. If they have already been planted in saline-alkali terrain, preventive work should be strengthened, for example by digging drainage ditches, increasing the application of organic fertilizer, improving the soil, and so on.

3. Walnut saplings cannot be planted in plots with a shallow water table, such as low-lying plots beside large rivers and reservoirs, because planting in such plots easily causes walnut sapling root rot, fruit drop, and other problems, and in severe cases will cause the plants to wither and die.

4. Walnut saplings cannot be planted in the following three types of areas: weathered sandstone areas, areas with relatively thin soil, or rocky hill areas with a low height of less than 1 m. The common feature of such areas is low water content. After planting walnut saplings, the plants grow slowly, which will lead to low economic returns. Therefore, when planting walnut saplings, the soil conditions need to be improved.

5. Walnut saplings cannot be planted in plots where willow, poplar, or pagoda tree have grown, because plants planted in such plots are prone to root rot. Therefore, such areas should be avoided as much as possible. If walnut saplings are planted in such areas, pentachloronitrobenzene should be used to treat the soil to prevent disease.

II. The most suitable land for planting walnut saplings

1. Walnut saplings cannot be planted in planting areas with a pH between PH6.2—8.2 or in saline-alkali plots, nor can walnut saplings be planted in plots with a shallow water table, weathered sandstone areas, areas with relatively thin soil, or rocky hill areas with a low height of less than 1 m.

2. The plots and land recommended for planting walnut saplings should have a gentle slope, be in the windward direction, have long exposure to sunlight, and have a maximum temperature not lower than —20°C, while appropriately increasing soil organic matter, which is beneficial to fruit tree growth.

3. Walnut is a deep-rooted species and has strong adaptability to soil. The suitable pH for growth is between 6.2-8.3 (in the south, a pH between 5.3-8.2 is sufficient).

4. Walnut saplings cannot be planted in saline-alkali land, because too high a soil salt content will affect the growth and development of walnuts, but if the salt content is below 0.25%, it will not affect growth, development, or yield.

5. Some walnut saplings have relatively low environmental requirements. For example, Guanhe No. 1 walnut saplings and 8518 walnut saplings are planted throughout the country. They can also be cultivated in mountain areas, plains, and paddy fields.