Crop Root Zone

← OrreryCrop Root Zone is an Orrery publication

Fertilizer, crops, and the economics between them.

Latest · Issue 11 · 2026-09-28

Polymer-Coated Urea Needs Six Bushels to Pay This Fall. The Trials Find Them on Claypan and Sand, and Roughly One Year in Four Anywhere Else.

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Recent issues

Issue 11 · 2026-09-28

Polymer-Coated Urea Needs Six Bushels to Pay This Fall. The Trials Find Them on Claypan and Sand, and Roughly One Year in Four Anywhere Else.

Issue 10 · 2026-09-21

UAN32 and Urea Cost $0.714 and $0.715 a Pound of Nitrogen. UAN32 Has Not Left a $10 Band in Nine Surveys, While World Urea Rose 12% in a Month.

Issue 09 · 2026-09-14

Anhydrous's Discount to Urea Shrank by About a Third in a Year. Record Diesel Took Less Than a Dollar an Acre of It.

Issue 08 · 2026-09-07

The Biggest US Phosphate Producer Is Cutting 206 Jobs Over a Sulfur Contract

Issue 07 · 2026-08-31

UAN28 Fell 7% and Is Still the Most Expensive Nitrogen on the Board

Issue 06 · 2026-08-24

India Asked for 1.7 Million Tons and Got Three Times That on One Coast. The Offers Expire Today.

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