It may seem like a peculiar time to be talking about crop rotations, but late August is probably a good time to think about planting strategies for next spring, tillage sequences, rotations, and how you should manage each of your parcels of land in crop production. With that in mind . . . Thereafter yield increases 12 to 14 bushels per acre for each inch of water added. Nitrogen fertilizer requirements are about eight pounds per acre for each inch of water used by an oat crop. If water conditions improve, N application is increased about eight pounds per acre inch increase in available water.
Safflower yield generally increases in yield linearly as available water is increased.
About 8 to 11 inches of water is needed to produce the first pound of safflower seed. Thereafter, yield increases about 205 pounds per acre for each inch increase in available water. High nitrogen fertilizer rates generally cause a decrease or depression in safflower seed yield when available water is limited, i.e., under dry conditions. Generally speaking, the N fertilizer requirement for safflower increases 12.5 pounds per acre for each inch increase in available water above 13 inches. Copies of both of these fact sheets, which include much more information regarding oat and safflower responses to N fertilizer and available water, are available on request.