Cooperative Extension San Joaquin County
University of California
Cooperative Extension San Joaquin County

Posts Tagged: fertilizer

Skip landscape fertilization during the drought

It's a good idea to skip fertilizer in the garden during a severe drought. (Photo: freestockphoto.biz)
Because high-nitrogen fertilizer prompts plants to grow a lot of leaves and use more water, director of the UC Agriculture and Natural Resources (UC ANR) Master Gardener Program suggests California gardeners put away the fertilizer spreader for a time.

"When plants are under drought stress, we don't want to promote a lot of leafy growth," says Missy Gable in the fifth installment of UC ANR's six-part video series on saving water in the landscape. "If using fertilizer, choose a fertilizer low in nitrogen, or don't fertilize this year."

The UC Master Gardener Program provides a detailed description of landscape fertilizer needs on its California Backyard Orchard website. Visit the website to learn about the various nutrient needs of growing trees and shrubs, symptoms of nutrient deficiencies, and how much fertilizer should generally be applied each year.

View the latest video here:

Additional videos in the UC ANR video series on saving water in the landscape.

Prioritize your plants

Early-morning watering is best

Remove weeds from your landscape

Mulch the soil surface

The videos are also available on the UC ANR YouTube channel.

Coming next week, a video about using fertilizers under drought conditions.

An initiative to improve California water quality, quantity and security is part of the UC Division of Agriculture and Natural Resources Strategic Vision 2025.

Author: Jeannette Warnert

Posted on Sunday, September 20, 2015 at 2:51 PM

The public is invited to the California Nitrogen Assessment’s Stakeholder Review Process

California farmers are seeing new nitrogen monitoring requirements they must implement in the years ahead. The state of California continues discussion on how growers can improve nitrogen use efficiency and how California can best respond to increasing concerns about nitrogen's movement through our environment. Nitrogen continues to be a pressing topic for California agriculture.

Lettuce field near Salinas, CA
Dairy manure management process

As part of that discussion, members of the public are invited to participate in the Stakeholder Review of the California Nitrogen Assessment (CNA), a comprehensive examination of the existing knowledge on nitrogen science, policy, and practice in California. Researchers have collected and synthesized a large body of data to analyze overall patterns and trends in nitrogen imports, exports, internal flows and storage throughout the state.

The CNA was designed to respond to stakeholder needs, and many scientists affiliated with UC Agriculture and Natural Resources were involved in the writing and review of the document. The review process is an opportunity to hear from stakeholders to understand how well the assessment meets those needs and what improvements can be made to the CNA before its publication. This approach aims to move beyond academic “business as usual” to more effectively link science with action and to produce information that informs both policy and field-level practice.

The Agricultural Sustainability Institute at UC Davis, the CNA's convening institution, is hosting a chapter-by-chapter public review process to allow stakeholders an opportunity to comment on the document before its final release. 

On Friday, June 12, UC SAREP hosted a webinar of Chapter 8: “Responses: Policies and Institutions.” View the webinar here. The webinar includes an introduction to the chapter by its lead author, Ken Baerenklau, associate professor of environmental economics and policy at UC Riverside, and instructions for how stakeholders can submit comments on the chapter.

Chapter 8, “Responses: Policies and Institutions,” provides an overview of available policy instruments for nonpoint source pollution control and examines outcomes from the implementation of these policies in previous cases to control nitrogen pollution in practice.

This is the fourth in a series of webinars and stakeholder review periods to discuss the California Nitrogen Assessment, which includes:

  • Identification of underlying drivers (e.g., regulations, population growth) and direct drivers (e.g., fertilizer use and soil management, fuel combustion) that affect stocks and flows of nitrogen in California agriculture.
  • Calculation of a mass balance to examine how nitrogen moves through California agroecosystems and the state as a whole (including agriculture, sewage, industry and transportation).
  • Evaluation of the state of knowledge about nitrogen's impacts on ecosystem health and human well-being. 
  • A series of scenarios, or "plausible stories about the future," that provide insights about nitrogen issues that will require attention over the next 20 years.
  • A suite of practices and policy options and the potential effects each would have on agriculture, the environment and human health.

Stakeholder comments for Chapter 8 will be accepted until June 26, 2015. The comment period for Chapter 7, “Responses: Technologies and Practices” is still open, with comments due by June 15, 2015. The webinars for all stakeholder presentations done to date are available on the California Nitrogen Assessment's website.

For more information about the stakeholder review process and to access the chapters currently available for review, visit the California Nitrogen Assessment's website.

Posted on Wednesday, June 10, 2015 at 5:00 PM
  • Author: Aubrey White

Drought-focused soil nutrient management series offered for farmers online

Nutrient management in almond orchards will be discussed in November.
Beginning in November, a free, drought-focused soil nutrient management series for farmers will be hosted online by the University of California Sustainable Agriculture Research & Education Program (UC SAREP), FarmsReach and Sustainable Conservation.

“Farmers and ranchers have to continually adapt their management of soil nutrients to changing conditions,” said Aubrey White, UC SAREP's communication coordinator. “Adaptation during this extreme drought presents a new challenge for growers and researchers alike. This forum dedicated to the issues farmers will face next season is an opportunity to share resources, research and ideas for success.”  

Kicking off on Nov. 17, the Nutrient Management Solutions series will offer the agriculture community:

  • Online presentations, videos or Q&A with farmers and UC Cooperative Extension advisors on nutrient management and soil fertility, with special focus on tree crops, grapes and dairy farms.
  • Facilitated online discussions in the active FarmsReach Conversations, moderated by Series presenters.  (Join the Nutrient Management Solutions Group in FarmsReach to participate.)
  • A new “Soil Nutrient Management Toolkit” in FarmsReach, with selected practical resources and info sheets for farmers of all crop and product types.

The online series is part of the Solution Center for Nutrient Management—a growing resource for nutrient management research and information, online and in-person created by UC SAREP. 

The presentations, videos and facilitated online Q&A will be hosted in three sections:

  1. Nov. 17-30 – Nutrient Management in Times of Drought: Tree Crops
  2. December (dates to be announced) – Nutrient Management in Times of Drought: Wine Grapes
  3. January (dates to be announced) – Nutrient Management in Times of Drought: Dairy Forage Crops

To get updates and announcements, or to share your ideas for the drought-focused Nutrient Management Solutions series, sign up for free at www.farmsreach.com. You can also go directly to the online group within FarmsReach, http://www.farmsreach.com/nutrient-mgmt-series, and follow news on Twitter at #AgSolutionCenter. 

About UC SAREP
The University of California Sustainable Agriculture Research & Education Program (UC SAREP) a program in UC Division of Agriculture and Natural Resources, provides leadership and support for scientific research and education in agricultural and food systems that are economically viable, conserve natural resources and biodiversity, and enhance the quality of life in the state's communities. SAREP serves farmers, farmworkers, ranchers, researchers, educators, regulators, policy makers, industry professionals, consumers and community organizations across the state.

About FarmsReach

Founded in 2007, FarmsReach is a network that connects small- and medium-scale farms to the products, support and services they need to be successful.  By partnering with farmer members and agriculture organizations, FarmsReach offers a growing suite of services that empower farmers to make better business decisions, access new markets, preserve the environment and strengthen rural communities.  

About Sustainable Conservation

Sustainable Conservation partners with business, agriculture and government to find practical ways that the private sector can protect clean air, clean water and healthy ecosystems. The independent nonprofit organization leads powerful collaborations that produce lasting solutions and sustain the vitality of both the economy and the environment. 

Posted on Friday, November 7, 2014 at 8:18 AM
  • Author: Aubrey White
Tags: Almonds (9), fertilizer (3), nutrient management (3), SAREP (3)
 
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