Producers who plan to apply crop nutrients and pesticides through irrigation systems during 2021, or need to renew their permits, can attend one of many in-person training sessions scheduled for locations throughout Nebraska.
In a stark contrast to 2019, this year’s growing season was drastically drier which meant that participants in the Testing Ag Performance Solutions (TAPS) program had to focus more attention on their irrigation and nitrogen management decisions this year.
Usually by mid to late August, corn and soybeans have progressed enough in maturity that we have a good handle on how much water it will take to finish the crop out. So just how much water do we need to finish out the growing season?
End guns have been on center pivots from almost the beginning and the merits of their use have been debated about as long. Some farmers would not have a pivot without an end gun and others would not have a pivot with one.
Irrigation expenses are usually the biggest energy cost on the farm. On dry years, they become even higher. So how does one know when the system must be started and when it can be turned off? How should the low commodity prices this year affect these decisions?
Research conducted by the University of Nebraska and elsewhere shows that corn is relatively drought tolerant during the vegetative period, but very sensitive to water stress during silking through early grain fill.