- (Public Value) UCANR: Promoting economic prosperity in California
- Author: Mark E Lundy
We're off to a good start to the rainfall year! As farmers begin to turn attention to fall-planted small grains, be sure to check out UC's extension resources on the UC Small Grains Research and Information Center and the associated UC Small Grains Blog. Resources include the following:
UC Davis and UC Cooperative Extension are excited to share newly developed tools that optimize nitrogen (N) fertilizer management in wheat and other small grains. The new tools and case studies illustrating how they've been applied in commercial settings will be discussed at an upcoming webinar on 11/4/2021 from 2-4 PM (2 INMP/CURES CEU credits available for those who REGISTER).
These tools are the product of many years of UC research and include an interactive website that provides customized, site-specific nitrogen fertilizer recommendations. Recommendations are based on monitoring of crop health and...
- Author: Konrad Mathesius
- Contributor: Thomas Getts
- Contributor: José Luiz Carvalho de Souza Dias
- Editor: Brad Hanson
Concerns about a growing resistance to herbicides
In Mediterranean or arid climates, particularly in areas with marginal soils, crop rotations are often limited to a narrow range of hay, pasture, a handful of winter legumes, or rainy-season grasses. Arid conditions and weathered soils drove Australia's rainfed grain growers to adopt no-till strategies earlier than their counterparts in California. While beneficial from a water use perspective, successful no-till systems depend on herbicides to control weeds that were traditionally kept in check with tillage.
Dependence on herbicides alone in these systems has resulted in weeds with resistance to multiple modes of action. In Australia, there is one...
- Author: Michelle Leinfelder-Miles
- Author: Nick Clark
- Author: Sarah Light
- Author: Konrad Mathesius
This is our second in a series of blog posts on improving nitrogen (N) use efficiency in California small grains. This post focuses on the use of N-rich reference zones to assess in-season N status and make management decisions based on crop need. Our goal is to help growers and consultants learn how to use N-rich zones to improve small grain N fertilizer use efficiency and reduce negative environmental outcomes. To demonstrate what we know about this practice across the small grain growing regions of the state, our team has helped growers establish N-rich zones in their fields across a wide range of soil and climatic conditions. These demonstration sites are in the Sacramento Valley, Delta Region, San Joaquin Valley, and the...