Today I gave the plants some blood meal. Part of the regular nitrogen fertilization I've been doing. The difference is that blood meal is a nitrate form of nitrogen which the plant reacts to a little differently. When there is a lot of vine growth the nitrate demands are a little higher in the plant. Blood meal, which is a good source of iron, is also an excellent organic source of nitrate nitrogen.
In about a week, I'll be pollinating the first pumpkin of the season on the 1325 Johnson plant. It is about at 11 feet. I'd like to let this plant get a little bigger so I'm hoping for another female at about the 13-14 foot range, so I can get the vines filled out a little more prior to the pumpkin taking off. Eddy Z talked about how he thought that to be important, because it gives enough plant to really drive nutrients to the pumpkin. That is a theory I've also had for a number of years, but it is sometimes easier said then done. You don't always get to choose when the females show up on the main vine, so pollinate them all.