Assess Stand Establishment
Assess stand establishment to see if your crop is growing satisfactorily. By comparing the plant population per foot
with the seeding rate per foot, you can determine if the stand is optimal, weak, or excessive.
- If the stand is weak, monitor for and identify any pests such as seedling diseases
or seedling insects associated with poor stands.
- If the stand is unacceptable or if there are multiple
adjacent rows without plants, your main management option is to replant.
- If the stand is excessive, thinning may
be required. Dense plant populations, combined with conditions of adequate moisture and nutrients, can lead to
making the crop more vulnerable to insects and diseases. Depending on the cotton variety, a plant stand in
excess of 60,000 plants per acre may require thinning.
The following table gives a general range for plant stand populations—although ideal densities are variety and
condition dependent. For cotton plants growing in low vigor situations, higher plant densities may be desirable.
General range for plant stand population
||Plants per acre
||more than 60,000
To estimate plant population:
Take at least 4 measurements from several representative areas of the field and average them.
- Use the table below to find the length of row that represents 1/1000th of an acre for various row widths.
- In your field,
count the total number of plants in the 1/1000th acre area and multiply by 1000.
Length of row repesenting 1/1000th of an acre for various row widths