Nutrient Management Solutions


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Subject: Nutrient Management in Times of Drought: Summary Links & Series Feedback!

A big Thank You to the knowledgeable experts and panelists who participated in the Nutrient Management Series over the past five months!

Please take our two-minute survey to let us know what was helpful or not; and what information *you* would like to see in the future to better manage soil nutrients and the reduced water supply.

A lot of great wisdom was shared during the series, and so below are some quick links to access the highlights. This was a challenging yet fun pilot to bring the complex topic of soil management to a broader audience online, so of course there is more we can cover. Please take our quick survey to share your thoughts.

If you haven’t heard of the three-part series until now, check out the project background and vision. And join the Group for future series!

Tree Crops & Almonds

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In Topics Soil Fertility Management, Seed & Planting, Trees, Vines & Planting, Water & Irrigation, Livestock, Weather & Climate Change

In General FarmsReach community, Nutrient Management Solutions

Comment 0
05/19/15, updated

Subject: Nutrient Mgmt Virtual Field Day: Managing nutrients with limited water

What are 3 things that growers need to keep in mind when managing nutrients in water limited situations?

In Topics Soil Fertility Management, Trees, Vines & Planting, Water & Irrigation

In General FarmsReach community, Nutrient Management Solutions

Comment 1
01/23/15
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  |  University of California Extension - Kern County  |  Bakersfield, CA commented

Here are three things I would suggest:

  • Use lower fertilizer doses
  • Add more organic matter in the soil
  • Monitor soil EC to avoid salt accumulation
01/23/15 1:41 PM

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Subject: Nutrient Mgmt Virtual Field Day: Timing of Nutrient Drip Systems

What does the current research say about the timing of nutrients in drip systems?

For more context and references, see our Soil Nutrient Management Toolkit. For bios of our panelists and to learn more about the Series, check out the Nutrient Management Solutions group. This Nutrient Management Series in Times of Drought Series is a collaboration of UC SAREP, FarmsReach and Sustainable Conservation.

In Topics Soil Fertility Management, Trees, Vines & Planting, Water & Irrigation

In General FarmsReach community, Nutrient Management Solutions

Comments 2
01/21/15, updated

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  |  UC Cooperative Extension  |  Merced, CA commented

Drip allows us to distribute the fertilizer throughout the growing season - applying small amounts each week. We don't apply N in the winter because there is little demand from the canopy and roots are not very active. Spring and Summer are when the canopy and fruit are developing. We have a strong root flush in the spring. Since nutrients with a positive charge, like K or Mg don't move readily in the soil, you can probably apply them in the winter as long as they are not being pushed below the root system, which is difficult, even in a sandy soil.

01/22/15 8:18 AM

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Subject: Nutrient Mgmt Virtual Field Day: Monitoring moisture & nutrients

What are some best practices for monitoring moisture and nutrients in vineyard systems?

For more context and references, see our Soil Nutrient Management Toolkit. For bios of our panelists and to learn more about the Series, check out the Nutrient Management Solutions group. This Nutrient Management Series in Times of Drought Series is a collaboration of UC SAREP, FarmsReach and Sustainable Conservation.

In Topics Soil Fertility Management, Trees, Vines & Planting, Water & Irrigation

In General FarmsReach community, Nutrient Management Solutions

Comments 4
01/19/15, updated

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  |  University of California Extension - Kern County  |  Bakersfield, CA commented

I agree with Max, we need to keep eye on the water quality right now more than any time before since more wells goes dipper and dipper looking for water. In some cases, the water become very salty causing vine collapse.

01/20/15 12:04 PM

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Subject: Nutrient Mgmt Virtual Field Day: Incorporating animals into the vineyard

If I’m a grower interested in incorporating animals into my vineyard, how can I do this?

In Topics Soil Fertility Management, Trees, Vines & Planting, Livestock

In General FarmsReach community, Nutrient Management Solutions

Comments 10
01/14/15

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  |  Paicines Ranch  |  Paicines, CA commented

Following up on Pete's request (thanks for nudge!) below are some of the results from the trial work I did in Sonoma County in 2008 and 2009 grazing sheep from January through the end of June using high stock density and proper recovery periods:

  • Completely eliminated the need for any mowing and hand or mechanical tillage for management of vineyard floor
  • Reduced irrigation use by 90% compared to control site and increased yield by 1200 pounds/acre
  • Improved fruit quality according to the winemaker
  • Reduced irrigation use by 80% compared to winter only grazing (pre-budbreak)
  • Eliminated all hand suckering
  • Eliminated the need for any outside fertility inputs

The first commercial vineyard to adopt this system is now in it's 4th year (Ensay Vineyard in Victoria Australia) with results that are exceeding the owners expectations. Very good to hear that John Kiger has adopted this as well. I'm now in

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01/18/15 12:19 PM

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Subject: Nutrient Mgmt Virtual Field Day: Deficit irrigation best practices

What are some best practices for deficit irrigation in vineyards? How does nutrient management change with deficit irrigation?

In Topics Soil Fertility Management, Trees, Vines & Planting, Water & Irrigation

In General FarmsReach community, Nutrient Management Solutions

Comments 3
01/15/15

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  |  Agricultural Sustainability Institute  |  Davis, CA commented

Thanks Maxwell,

I've found some pretty good resources on deficit irrigation and vineyard irrigation with limited water and linked to them below:

Winegrape Irrigation Scheduling Using Deficit irrigation Techniques: An article from UC ANR

Vineyard irrigation with a limited supply of water: A video from Farm Advisor Glenn McGourty

Drought, irrigation, and grapevine nutrition: a blog post from Consultant Fritz Westover

Take a look!

01/16/15 3:29 PM

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Subject: Nutrient Mgmt Virtual Field Day: Organic Vineyard Production

What are some important things to keep in mind for organic vineyard production?

For more context and references, see our Soil Nutrient Management Toolkit. For bios of our panelists and to learn more about the Series, check out the Nutrient Management Solutions group. This Nutrient Management Series in Times of Drought Series is a collaboration of UC SAREP, FarmsReach and Sustainable Conservation.

In Topics Soil Fertility Management, Trees, Vines & Planting, Water & Irrigation

In General FarmsReach community, Nutrient Management Solutions

Comments 4
01/13/15, updated

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  |  P.J. Dunn Working Redworms  |  Galt, CA commented

John, I've seen some of your comments and (being involved in nutrient manufacture re: worm castings) am interested in your line of products providing natural alternatives to the harsh manufactured chemicals now termed as conventional. I'd love to provide you with 50 tons of castings to assist your efforts! This is ideal for a dry product formula and economically viable at just .15 per pound in commercial quantity! And of course, as a tea I think a foliar applications are AWESOME! My research into aerated teas over the last year gives me hope for castings as a part of the solution (intentional play on words) facing those who want to get away from chemicals. I know that a couple of Sonoma and Napa vintner's have endorsed castings through Sonoma Worm Farms website. Jack Chamber's (informal) observations on the growth results and value of only 1 cup of castings per plant on new vine plantings many years

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01/15/15 10:53 AM

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Subject: Nutrient Mgmt Virtual Field Day: Basic nutrient/water mgmt fundamentals

Welcome to our second Nutrient Management Virtual Field Day! Here is our first topic to kick things off:

What are some basic nutrient and water management fundamentals for vineyard systems that growers should be aware of?

Below, our featured panelists will respond, and then we invite YOU to share any ideas, tips or questions you have as well.

Check out the bios of our panelists and learn more about the Series in the Nutrient Management Solutions Group. This Nutrient Management Series in Times of Drought Series is a collaboration of UC SAREP, FarmsReach and Sustainable Conservation.

In Topics Soil Fertility Management, Trees, Vines & Planting, Water & Irrigation

In General FarmsReach community, Nutrient Management Solutions

Comments 4
01/12/15, updated

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  |  University of California Extension - Kern County  |  Bakersfield, CA commented

I like the video Max, very valuable information.

01/12/15 10:02 PM

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Subject: Announcing Panelist Line-up: Vineyard Nutrient Mgmt in Times of Drought Virtual Field Day 1/12

Hi all –

Next Monday (1/12) is the kick-off of our Nutrient Management Virtual Field Day series, and this time around we're focusing on vineyard systems!

First, we wanted to introduce you to our expert panelist line-up, and please join us for the conversation next week.

And remember, the format of the forum is that we’ll release a Q&A from our panelists every day or two, and you’ll have a chance to post a question or comment. Or, better yet, share your experiences and tips you have found.

We have all our panelists “on call” for almost two weeks to keep the conversation rolling and help you get answers. So chime in when you can!

If you have questions or ideas for the series, get in touch: evaa@farmsreach.com

Panelist bios: Vineyards

Maxwell Norton, Farm Advisor, UC Cooperative Extension, Merced and Mariposa Counties

Maxwell was raised on a

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In Topics Soil Fertility Management, Trees, Vines & Planting, Water & Irrigation

In Nutrient Management Solutions

Comment 0
01/08/15, updated
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