We have made a few changes to the chart below to better define planting conditions. In addition, we cap DD60’s at a maximum value of 10 for each day. If you are computing DD60 accumulation on your own and a day is predicted to have 15 DD60’s, only use 10 for that day.
|Relationship Between Predicted DD-60s and Planting Conditions.|
|Predicted DD-60 accumulation
five days following planting
|10 or fewer||Very poor|
|11 to 15||Marginal|
|16 to 25||Adequate|
|26 to 35
|Avoid planting cotton if the low temperature is predicted to be below 50°F for either of the two nights following planting or predicted daily DD60’s is near zero for the day of planting.|
Soil temperature at a 3 inch depth was 64.2 degrees at 8 this morning (April 17). That is borderline for planting cotton.
The DD60s predicted for the 5 days following planting at Rocky Mount are included in the table below. Note the days shaded in yellow for caution due to low night temperatures and low DD60s for the day of planting. We have a couple days of decent planting followed by a cool spell. It looks like we will have good conditions the last few days of April.
|Planting date||Daily DD60s||DD60s for next 5 days||Low temp||Planting condition|
*DD60’s are capped at 10 for any one day.