A recent article by Dr. Steve Evett and others traces the history of irrigation in the Great Plains region from a geographical, technical, and political perspective as well as how it has impacted the water resources

With the recent increase in fertilizer prices, it is more important than ever to use the right amount of fertilizer to maximize the economic returns. Applying too little or too much fertilizer can result in substantial economic loss.

Fertility is critical to a good crop, so we know not to ignore our crop fertility needs, but we don’t always think about ways we may be able to trim costs by better utilizing local nutrients. Manure has many benefits, including some related to soil health, but perhaps the most recognized benefit is that manure contains the nutrients our crops need. Manure isn’t always an inexpensive product, but it contains multiple nutrients that are highly valued when planning your fertility program.

Scheduling the last few irrigations of the season deserves more of your management time than earlier irrigations because one must not only focus on keeping the crop wet enough to produce optimal yields, but also on using up enough of the stored soil water to lower the level to 40% of plant available water in the top four feet. This level will give about 2.4 inches of water storage room in sandy soils and about 5.5 inches in silt loam soils. Unfortunately, many irrigators leave the soil fairly wet with little to no storage room according to a recent study.