Walnuts Production Management

Walnuts Production Management

Walnuts Production Management : Poor sites have characteristics which will stress black walnut trees. These characteristics include insufficient moisture, too much moisture, harsh conditions from steep slope, hard pans and shallow soils with bedrock or gravel that restrict root growth. Unfortunately, you cannot improve a poor site.

To grow black walnut profitably, plant on suitable soils. Choose well-drained, loamy soils with a pH between 5 and 8. Generally, smooth and gently rolling landscapes offer the best sites.
Study sites carefully for proper soil texture and drainage, since these are often the more limiting factors. In mountainous terrains, middle to lower north- and east-facing slopes as well as stream terraces and floodplains often make adequate walnut sites. Table 1 lists site considerations for black walnut.

Table 1. Site selection for black walnut.

Consideration Suggestion Comments
walnut Soil type Well-drained loamy soils Avoid acidic clay subsoils
Soil depth for walnut Greater than feet Avoid shallow, eroded, or frangipani soils
Aspect North- or east-facing Lower slopes, stream terraces, or coves
pH 5 to 8 Avoid acidic clay subsoil’s

Think about possible future difficulties when choosing a black walnut site. For example, sites with acceptable soil and other growth requirements may be poor sites because of tree harvesting obstacles.

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