Education Commons^™

G73-20 Fertilizing Through Center Pivots, Paul E. Flschbach

University of Nebraska-Lincoln Extension: Historical Materials

There are two decisions and three sources of information that are needed before applying fertilizer solutions through a center-pivot sprinkler system. These are discussed in this publication.

The decisions are: the amount of nitrogen to be applied per acre through center-pivot sprinkler system; and the kind of fertilizer solution to be applied.

The information needed is: the number of acres that will be irrigated in one revolution of the center-pivot sprinkler system; the amount of time required to make one revolution of the center-pivot sprinkler system; and the rate at which your porportioning pump can inject a fertilizer solution into …

G73-58 Programmed Soil Moisture Depletion: Top Yields With Least Water (Revised), Paul E. Fischbach, Burt R. Sommerhalder

University of Nebraska-Lincoln Extension: Historical Materials

The development of automated irrigation has introduced a revised concept to irrigation water management that will mean savings of water and energy. By not completely refilling the root zone each irrigation, soil moisture storage capacity is left within the root zone to take advantage of any rainfall that occurs after an irrigation. Conservation of water is important because supplies are being depleted in many areas.