Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Education
G82-601 Using Phosphorus Fertilizers Effectively, E.J. Penas, D.H. Sander
G82-601 Using Phosphorus Fertilizers Effectively, E.J. Penas, D.H. Sander
University of Nebraska-Lincoln Extension: Historical Materials
For most effective use of phosphorus, the fertilizer needs to be placed to ensure quick contact by growing roots and minimal contact with the soil.
Phosphorus (P) fertilizers are second only to nitrogen fertilizers in importance for growing crops in Nebraska. However, the principles affecting efficient phosphorus use are totally different. Nitrogen is a mobile nutrient both inside the plant and in the soil, while phosphorus moves very little in the soil. In addition, total plant phosphorus requirements are much lower than those of nitrogen. Plant leaves commonly contain ten times more nitrogen than phosphorus. However, phosphorus is concentrated in …
G82-602 Predicting The Last Irrigation For Corn, Grain Sorghum And Soybeans (Revised August 1991), Norman L. Klocke, Dean E. Eisenhauer, Terry L. Bockstadter
G82-602 Predicting The Last Irrigation For Corn, Grain Sorghum And Soybeans (Revised August 1991), Norman L. Klocke, Dean E. Eisenhauer, Terry L. Bockstadter
University of Nebraska-Lincoln Extension: Historical Materials
This NebGuide presents criteria and "rules of thumb" for predicting the last irrigation for corn, grain sorghum and soybeans.
Determining when to apply the last irrigation of the season is an important water management decision. One extra irrigation may mean wasting an additional one to three inches of water and two to five gallons of diesel fuel per acre. On the other hand, applying that one extra irrigation could mean several bushels per acre in crop yield.