Dehlinger Replant

February 2012: Glorious Spring Mustard!

2012-02-02T08:58:00.001-08:00

The young vines are still dormant but the blooming mustard hints at the arriving Spring...

September 2011: Establishment

2012-01-03T15:39:00.000-08:00

By the start of Fall, our young 420A vines had come a long way...

August 2011: Healthy, Growing Vines

2012-01-03T15:32:00.000-08:00

By August, the 420A vines are well established.

We had planted a few extra vines that we dug up in order to monitor root growth. We were pleased to see even and vigorous new growth below the ground.

July 2011: Mounds Broken Down

2011-07-25T06:31:00.000-07:00

After some 11 weeks in the ground, the mounds that originally covered the vines are broken down by hoeing.

Each vine now stands tall and independent.

July 2011: This place looks more and more like a vineyard!

2011-07-01T14:21:00.000-07:00

The young vines have been thriving in the summer warmth, and look healthy in their new home.

June 2011: Vines at One Month

2011-06-14T08:10:00.000-07:00

The vines have been in the ground for one month and now have several inches of growth.

Meanwhile, Winemaker Tom Dehlinger (above) lends the vineyard staff a hand by spading weeds in the middle of the new vineyard rows.

May 2011: Buds burst under the soil surface

2011-05-22T16:27:00.000-07:00

Still under the soil, the tender buds have pushed and have begun to grow. This photo was taken after uncovering a rooting. Look closely to see the pale, young buds

7400 Plants in the Ground

2011-05-11T15:34:00.000-07:00

Thank you to everyone who helped get them there!

May 2011: Planting Rootstocks

2011-05-11T14:46:00.000-07:00

The dormant 420A rootstocks for our vineyard come from the nursery in large bins.

Before planting, the roots are trimmed and the vines are soaked in water for several hours.

A hole is dug for each vine, and each vine is planted by hand.

The vines are then mounded over with several inches of loose soil to protect the fragile buds before the shoots emerge.

April 2011: Final Land Prep and Vine Position Layout

2011-05-03T13:12:00.000-07:00

After over two years of fallow, the end is in sight! To prep our 4.7 acres for planting, the land is mowed, spaded twice, and disced smooth in two directions.

Vine positions are first located using plastic knives....

...then established with rebar.

Mengali Plowing Article

2010-10-16T11:09:00.000-07:00

A local farm publication (Sonoma Marin Farm News) has written a piece featuring Mengali Plowing. It discusses his work at Dehlinger Winery.

Visit the Dehlinger website for the link to "Sonoma Marin Farm News" to learn more about Mario Mengali and his unique work!

October 2010

2010-10-14T21:50:00.000-07:00

Our cover crop of wheat will help build organic matter and protect against erosion during the winter. This is the second winter of fallow with a cover crop for our redevelopment blocks.

Summer and Fall 2010

2010-09-18T16:11:00.000-07:00

It has been a busy summer for the redevelopment. After the plowing was completed, the surface was smoothed over, and Mike and Jason from Vineyard Layout Services laid out a large grid for our vineyard. Open close examination, the photo below shows the flags they used to mark out the grid:

This flagged layout was used to install highway stakes and end posts on key rows. These stakes became the location of risers for an overhead irrigation system, which we also installed this summer.

The overhead irrigation system will provide protection from frost and heat spikes when the vineyard is mature. This fall, it is being used to establish a cover crop of wheat, which will grow through the straw mulch shown above.

Spring and Summer 2010

2010-07-28T07:24:00.000-07:00

After mowing the cover crop in the spring, a second set of soil pits were dug to re-examine the soil and conduct further soil testing (Above photo). The results were used to guide a second round of soil amendments, which were spaded into the soil. After allowing the soil to dry out sufficiently, Mario Mengali has returned to deep plow the soil a second time, for further mixing and very thorough root removal from the previous grapes (Below photo).

Spring 2010: Planning

2010-03-03T11:44:00.001-08:00

Planning for the replant continues. Some blocks will remain fallow for another 2 years, while about 5 acres will be planted next Spring (one year from now). In the meantime, we have chosen our spacing (7 feet by 4 feet), our rootstock (420A), and are planning the trellis and irrigation system.

October 2009: Fall Bounty and Winter Cover Crop

2009-10-30T16:25:00.000-07:00

At the winery, we are finally slowing down from a busy harvest season that started in the first few days of September. All the grapes are picked and we are attending to the last few fermentations. We are enjoying the bounty of autumn, including some pumpkins that my mother Carole grows every year.

Meanwhile, the summer cover crop was long since mowed, and the winter cover crop of wheat is well established. The fall colors play nicely with the green of the wheat.

Areas with patchier stands of wheat receive an additional seeding, straw, and fibrous netting for erosion control against the coming rains.

August 2009: Cover Crop Establishment

2009-08-12T10:30:00.000-07:00

We plan to lay the ground fallow for several years before planting the new vineyard. This will help rejuvenate the soil, which was farmed for decades before we planted it in grapes 35 years ago. An important aspect of the fallow period is cover crop establishment. Cover crops play many roles--in our case, it will prevent erosion of soil and introduce organic matter to encourage a healthy soil ecosystem. For the summer, we have selected Sudan Grass, which is abundant in growth and organic matter formation. Additionally, pests such as nematodes do not thrive on Sudan Grass.

We prepared the soil for the Sudan Grass in the following manner:

(Below) We spread 5 tons per acre of compost on the soil to support the cover crop and improve the soil for the future vines.

(Below) We then ripped the soil to incorporate the compost.

(Below) The soil was preparedl for seeds using a 10 foot disk on a John Deere 44 40 Tractor.

(Below) A handful of Sudan Grass seed.

(Below) Marty then used a Brillion seed drill to apply the Sudan Grass at 35 lbs of seed per acre.

(Below) Finally, after sewing the seeds, the Sudan Grass is irrigated to stimulate sprouting.

June 21st: Father's Day Fly Over

2009-06-24T17:02:00.000-07:00

To better understand how the soil changes in the replant blocks, Dad and I commission Dragonfly Aviation to take us up for aerial photos. In the photos, you can see the Octagon House, the winery, the replant blocks, and our pond between the vines.

June 2009: Mixing of Amendments and Root Removal

2009-06-24T14:02:00.000-07:00

(Above) Mario Mengali from northern Sonoma County operated a 4 foot mold board plow to mix in the amendments and lift up deep roots. (Below) Vineyard crew member Salvador Ayala spades in the amendments prior to deep mixing with the plow.

(Above) Vineyard crew members collect roots uplifted by the plow, and place them in one of several piles (below).

(Below) The plow exposes the variation in our soil below: The red hill top soil begins abruptly next to the yellow Goldridge soil.

June 2009: Amendments Applied

2009-06-24T13:18:00.000-07:00

As part of an effort to re-nourish the soil prior to its fallow period, we applied dolomitic lime and potassium sulfate to the soil. Note that we applied extra lime in stripes where the vines used to be. This is because those areas never received lime while in production, while the vine middles were given maintenance additions of lime.

(Above) Stripes of dolomite on the land where the vines used to grow.

(Below) Additional dolomite and amendments applied evenly over the land after the initial lime stripes.

Spring 2009: Vine Removal

2009-06-24T11:17:00.000-07:00

In Spring 2009, with permit in hand, we remove the old vine stumps. (Above) Tom Dehlinger inspects operator Bob Maddocks' excavation work. (Below) Afterwards, a replant block free of vines and smoothed over.

The vine roots are unchippable due to sand and dirt. They are placed in several piles to be dried prior to burning.

Fall 2008: Trunk Chipping

2009-06-24T11:14:00.001-07:00

After the trellis is disassembled, the trunks and arms are sawed off and the vine is left a stump.
The old vine material was chipped and spread over the ground to return the minerals and organic matter to the soil. (Above) Carmen Dehlinger walks in front of the old vine stumps.

Fall 2008: Vine Trellis Dissembly

2009-06-24T11:07:00.001-07:00

(Above) In Fall of 2008, the vines to be replanted are given a severe pruning to facilitate disassembly of the lyre trellis and wires (Below).

(Below) The trellis material is stacked to the side. The lyre hardware is on the left, vine stakes are in the middle, and end posts on the right.