- Author: Mark Lundy
- Author: Steve Orloff
- Author: Nicholas Clark
- Contributor: Robert B Hutmacher
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We have received several recent inquiries following on our blog post from late January that discussed the potential value of a nitrogen (N) topdress at the tillering-to-jointing stages of wheat growth. This is particularly an issue with the higher than average precipitation we have experienced in California this year. The current question is whether a topdress of N might still be beneficial to wheat crops that are in the late-boot to early-heading stages of growth. Although fall-planted wheat...
- Author: Mark Lundy
- Author: Steve Orloff
- Contributor: Steven D Wright
- Contributor: Robert B Hutmacher
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Over the past 4+ seasons, a UCCE team (Lundy, Orloff, Wright and Hutmacher) has revisited nitrogen (N) fertilization recommendations for hard spring wheat specific to California conditions. We have grown wheat under a wide range of conditions and soil types, while varying the timing and quantity of N fertilizer to create conditions of N deficiency and sufficiency at the various times in the season when a grower might consider a N topdress.
Image 1. Hard spring wheat (UC Patwin 515) grown in the 2014-15 season in Davis where N fertilizer (urea) was/was not broadcast-applied near the beginning of...
