- Author: Mark Lundy
- Contributor: Gabe Rosa
- Contributor: Charlie Turner
- Contributor: Nicholas Alexander George
The beta version of an interactive webtool for California small grain variety selection is now available on the Small Grains portion of the UC Agronomy Research and Information Center Website:
http://smallgrains.ucanr.edu/Variety/
The tool is designed to help users pinpoint small grain varieties that have performed well in particular regions and environments of California using data from multi-year, multi-location field trials. The main features of the tool are a series of selection menus that interact with a map to give...
- Author: Mark Lundy
- Contributor: Nicholas Alexander George
- Contributor: Michael Rodriguez
- Contributor: Konrad Mathesius
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Results from the 2016-2017 Fall-planted small grain variety trials throughout California are now available. These include tests of commercial and advanced varieties of common wheat, durum wheat, triticale, and barley, with multi-year productivity, disease and agronomic traits summaries included as well as single-site summaries from all Fall-planted 2017 trials. Results are available on the UC Agronomy Research and Information Center (AgRIC) Small Grains website:
- Author: Mark Lundy
- Author: Konrad Mathesius
Recent UCCE research has illustrated the value of in-season applications of nitrogen (N) fertilizer, particularly applications made at the early vegetative growth stages. This is typically the stage of growth when N demand from the crop is increasing rapidly, the soil is beginning to warm up, and microbial metabolism and associated mineralization/transformations of the various forms of N are increasing. Over a wide range of California conditions and across multiple seasons, applications of N fertilizer at this stage of growth have been shown to
- 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...
