Monday, September 17, 2012

How We Can Eat Our Landscapes

What should a community do with its unused land? 

Plant food, of course. With energy and humor, Pam Warhurst tells at the TEDSalon the story of how she and a growing team of volunteers came together to turn plots of unused land into communal vegetable gardens, and to change the narrative of food in their community.

Pam Warhurst cofounded Incredible Edible, an initiative in Todmorden, England dedicated to growing food locally by planting on unused land throughout the community.



More about Pam Warhurst:
Pam Warhurst is the Chair of the Board of the Forestry Commission, which advises on and implements forestry policy in Great Britain. She also cofounded Incredible Edible Todmorden, a local food partnership that encourages community engagement through local growing. Incredible Edible started small, with the planting of a few community herb gardens in Todmorden, and today has spin-offs in the U.S. and Japan. The community has started projects like Every Egg Matters, which educates people on keeping chickens and encourages them to sell eggs to neighbors, and uses a 'Chicken Map' to connect consumers and farmers. Incredible Edible Todmorden empowers ordinary people to take control of their communities through active civic engagement. 

"I wondered if it was possible to take a town like Todmorden and focus on local food to re-engage people with the planet we live on, create the sort of shifts in behaviour we need to live within the resources we have, stop us thinking like disempowered victims and to start taking responsibility for our own futures." Pam Warhurst

“There's so many people that don't really recognize a vegetable unless it's in a bit of plastic with an instruction packet on the top.”  Pam Warhurst

“Can you find a unifying language that cuts across age and income and culture? … Yes, and the language would appear to be food.”   Pam Warhurst

Saturday, August 25, 2012

Want to calculate how much water you can capture?

I have a post from April 10, 2010 about how to install rain barrels and harvest the water and another April 12, 2010 about how to build a rain barrel.. A reader posted this link, which I never saw until now. It is very cool to get an idea how much water can be harvested if you have the set-up to do it.  Thank you Raindrops Cisterns!

Statistics generated in reference to NOAA calculations for average rainfall per year.

This is the link where they have the calculator - just put in your zip code and the square footage of your roof and you get the gallon figure!!!  Wow!!!

http://rdcisterns.com/rainwater-harvesting-calculator
---------------------------------------------------------------------------
This is what I got:
Rainwater Harvesting Calculator
How much rainfall can I harvest in a year?
You could harvest up to 23,976 gallons of rainwater per year!
= 11,988 Toilet Flushes
= 599 Laundry Loads
Results based on NOAA calculations of average annual rainfall for California, 1971-2000
----------------------------------------------------------------------------

Calculating the appropriate size
Rule number one!
Shoot for 1000 gallons and go from there. 1000 gallons on a 1000 to 3000 square foot house is a nice starting point and will supplement your existing water use quite nicely. Supplementing is the key word. It is not always practical to depend 100% on rainwater, but it is always practical to supplement potable water with rainwater.

Formulas:

square footage of roof area   X .6   =  gallons per 1 inch of rain.
gallons per 1 inch of rain   X .average inches rain per month   =  amount available for collection

Example

Square footage of roof area (length x width) 1800 sq. ft
1800 x .6 = 1080 gallons
Average inches rain per month in most of Florida is 3 inches – this does not include June, July, August and September which are about double that.
1080 gallons x 3 = 3240 gallons collected
Let us assume 2 people live in this home. With each person using 69 gallons of water per day (this is average), that is 138 gallons per day or 966 gallons per week and 3864 gallons per month.
Considering the frequency of rain, a 1000 gallon to 2000 gallon storage capacity would be a good fit for this home.

Here’s how it breaks down:

Daily indoor per capita water use in the typical single family home is 69.3 gallons.
Use Gal per Capita  % Total Daily Use 
Showers 11.6 16.8%
Clothes Washers 15.0 21.7%
Dishwashers 1.0 1.4%
Toilets 18.5 26.7%
Baths 1.2 1.7%
Leaks 9.5 13.7%
Faucets 10.9 15.7%
Other Domestic Uses 1.6 2.2%

By installing more efficient water fixtures and regularly checking for leaks, households can reduce daily per capita water use by about 35% to about 45.2 gallons per day Here is how it breaks down for households using conservation measures:

Use Gal Per Capita % Total Daily Use 
Showers 8.8 19.5%
Clothes Washers 10.0 22.1%
Dishwashers 0.7 1.5%
Toilets 8.2 18.0%
Baths 1.2 2.7%
Leaks 4.0 8.8%
Faucets 10.8 23.9%
Other Domestic Uses 1.6 3.4%

Considering the above figures, with efficient fixtures and a collection system capable of supplementing your water needs, you can make a significant impact on the environment and your pocketbook too!

What is rainwater harvesting?

Rainwater harvesting is the collection, storage and distribution of rainwater from the roof for use inside and outside the home, farm or business. Also known as cisterns.

Why we harvest rainwater.

  1. Increasing water usage as population continues to grow.
  2. Climate change.
  3. Storm water run off damages the environment.
  4. Increasing the storm water infrastructure cost taxpayers millions.
  5. Increase property value.
  6. Save potable water for drinking.

The Benefits are endless.

  1. Start harvesting water now! Rainwater reduces water usage in every home. Installing a system you will start saving water immediately.
  2. Rainwater is naturally pure and fresh. It is not recycled water!
  3. Research supports rainwater can meet all household requirements.
  4. Significant cost savings for the community and each household. When you consider the total cost to the community, it makes sense to install a system to catch rainwater that falls for free from the sky and utilize it in and around the home.
  5. Lower overall water usage. People that collect and use their own rainwater become more aware of their water use and further reduce their overall water use.
  6. Lower energy consumption and green house gas emissions. There are significant cost to treat and pump mains water throughout the community. Widespread installation of collection systems result in reduced energy consumption and less greenhouse gas emissions. Rainwater is an ideal water source for 95% of our requirements.
  7. Protect local waterways, bays, estuaries and reduce storm water infrastructure cost. Harvesting reduces both the volume and velocity of storm water run off.

http://rdcisterns.com/rainwater-harvesting-calculator

What is that green stuff on tomato plants?





Sept. 29, 2010
By Lynn Byczynski

What is the greenish-yellow powder you get all over your hands and arms when you pick tomatoes?

For the past two summers, this question has been bothering me. But I couldn't find anyone who seemed to know. I asked numerous friends in the biology and horticulture fields, and even several tomato breeders. Most people said "isn't it pollen?" But clearly it isn't coming from tomato flowers — it's all over the plant, on the leaves and stems. One grower called it chlorophyl. Another called it "tomato tar" because it turns black if you don't wash it off quickly enough.

An interesting characteristic of this substance is how hard it is to get it off your skin. You lather up with soap and water and the suds turn green. Rinse, and lather again, and the suds still turn green. You can wash your hands four or five times and the stuff just keeps coming off. It explains why all your towels and t-shirts get green stains in summer — no matter how many times you wash, there's still some left behind on your skin.

Finally, the mystery of the tomato stuff was revealed. Chris Wien, a horticulture professor at Cornell University, had sent me some information about high tunnel tomato production for an article I was writing for Growing for Market. I emailed to thank him then added, "By the way, do you know the technical term for the greenish yellow powder you get all over your hands when you pick tomatoes?"

Chris emailed right back. "Yes, the green substance is a number of chemicals that are released from hairs situated on the surface of tomato leaves, stems and fruits.  Under a microscope, these look like miniature water towers, and the compounds are inside these glands.  Some of the compounds are called 'acyl sugars'."

Finally, I had the right words to Google it with. When I did, I was plunged into the totally unfamiliar world of plant metabolism research.

A few hours later, staggering from one barely comprehensible scientific paper to another, I landed on the website of the Solanum Trichome Project, a collaborative genomics project between the University of Arizona, University of Michigan, and Michigan State. That's where I found this beautiful illustration above (by Chris Smith of fivethirtythree studios) of the little hairs that secrete the green stuff that gets all over your skin.

Solanum trichome illustration






And where I learned, in plain English, the meaning and importance of that substance. Here it is, in a nutshell:
The little hairs that cover tomato leaves are technically known as secretory and glandular trichomes (SGTs). About one-third of all the vascular plant species have SGTs. They secrete various secondary metabolites -- that is, substances that aren't used for the growth or reproduction of the plant but have some other function. SGTs contain the essential oils that give herbs their fragrance and flavor. In tomatoes, they produce acyl sugars, terpenoids, and flavonoids.  Acyl sugars are lipids (fats) that are greasy to the touch, insoluble in water and soluble in alcohol. That's why they're so hard to wash off your skin. Terpenoids release the familiar tomato scent when you brush against the plant. Flavonoids are the substances in plants that are getting all the attention for their role in preventing cancer and cardiovascular disease.

These substances are thought to protect plants against environmental assaults including insect attacks, foliar diseases, extreme heat and excessive light. They are of great interest to plant breeders, who hope to use them to develop varieties resistant to late blight, early blight, Septoria leaf spot and other diseases. There is also some research into increasing insect resistance. "Some wild tomato lines from South America have different acyl sugars than the domestic tomatoes, and by crossing them, the breeders can select for compounds that ward off insects," Dr. Wien said.  "Unfortunately, these compounds also give the plants a 'wet dog' smell, so may take some getting used to."

So now I know. The green stuff serves a very good purpose, from the point of view of the tomato plant. And that makes me more kindly disposed to the green stains on my towels and t-shirts in summer.


Lynn Byczynski is the editor and publisher of Growing for Market, a magazine for direct-market farmers.

Sunday, July 22, 2012

Illegal Front Yard Vegetable Garden


Front Yard Garden: Canadian Couple's Kitchen Garden Targeted By Authorities
July 22, 2012
















Take a look at Josée Landry and Michel Beauchamp's gorgeous front yard kitchen garden in Drummondville, Quebec. The cucumbers, tomatoes, zucchinis, beets, onions, and brussels sprouts and other vegetables grown by the couple helped Beauchamp lose 75 pounds, and Landry 25.

The only problem? It's illegal.

Boing Boing points us to a petition to save the garden, which authorities insist must be removed. The town code states that a vegetable garden can take up 30 percent of a front yard at most, and Landry and Beauchamp's is in violation. They were given two weeks to comply, which means the garden must be drastically scaled back by this Sunday.

The petition reads in part:

Front yard kitchen gardens are not the problem; they're part of the solution to healthier and more sustainable communities. Thanks for helping us to defend them.

CBC News reports that if the couple fails to remove a significant enough portion of their garden, they could expect fines of between $100 and $300 each day. The news site also reveals authorities say neighbors have complained about the garden, but Beauchamp is suspicious:

Beauchamp said no one has complained to him. He said he shares his fresh produce with his neighbours.

"They love it. Everybody is surprised by the kind of taste we can have from fresh vegetables," he said.

The couple said they have no intention of complying with the city's request.

CBC also notes that the city plans to make all front lawn vegetable gardens illegal this fall. The measure would only apply to new gardens, so Landry Beauchamp garden -- assuming they scale it back -- will be perfectly legal.

How does the larger gardening community feel about attempts to remove the garden? Boing Boing has a quote from kitchen garden advocate and expert Roger Doiron: "If this garden is deemed illegal, we're in deep you-know-what."

Learn more about the couple's personal website, Le potager urbain. Fair warning, it's written in French. Language barrier or not, the pictures are pretty cool.

Watch the making of the couple's garden in the video below. What's not to like?



http://www.huffingtonpost.com/2012/07/19/illegal-kitchen-garden_n_1687558.html

Friday, July 20, 2012

Convenience shoulders tomato taste aside Breeding for consistent color in unripe fruit may have diminished flavor






By Susan Milius
July 28th, 2012; Vol.182 #2  (p. 18)




Whether an unripe tomato has a gene form that leads to uniform light shade (right) or a darker shade on top called shoulders (left) could have consequences for the fruit's final flavor. Courtesy of Hakan Aktas It looks like 70 years of breeding for better color in unripe fruit has inadvertently helped create the wet-paper towel flavor of the modern tomato.

Growers care about the green of unripe tomatoes, explains biochemist Ann L. Thomas Powell of the University of California, Davis. Ripening globes that are each uniformly green let growers easily judge when a field will be ready for harvest. Over decades breeders have selected for this uniform green coloring instead of for tomatoes that turn a deeper shade around the stem end, Powell says.

The problem is, getting rid of that dark green zone, called green shoulders, turns out to have sabotaged a gene called SlGLK2 that boosts sugar and other sources of flavor in the ripe tomato, Powell and her colleagues report in the June 29 Science.

“It is a good illustration of unintended consequences,” says molecular biologist Harry Klee of the University of Florida in Gainesville, who studies tomato flavor.

For years, Powell says, breeders assumed that a ripe red tomato got all of its sugars from the little photosynthetic engines known as chloroplasts in the plant leaves. It turns out, however, that a green-shouldered tomato gets about 20 percent of its sugars from its own chloroplasts. Without a functional SlGLK2 gene, the ripening tomato forms fewer and punier chloroplasts that don’t deliver, Powell and her colleagues have found.

Skimping on sugars certainly could make a difference in flavor, says Klee, who routinely does taste tests in his lab. His tomato testing panels respond strongly to sugar content. “The more the better,” he says.

Volatile compounds wafting off a tomato’s flesh also play a big role in its appeal. The problem is, inadequate chloroplasts likewise won’t produce as much of the chemical precursors for some of those compounds. “It’s totally obvious you’re going to take a hit in some of the volatiles,” Klee says.

In the June 5 Current Biology, he and his colleagues highlighted the importance of a handful of volatiles — some of them mere whiffs — in seducing the nose and taste buds.

Exactly what the loss of the green-shoulders trait means for tomato flavor remains to be measured. But, Klee says, “it's not the whole story of why modern tomatoes are so bad, by a long shot.”

Picking them before they’re fully ripe diminishes flavor, as does refrigerating them. Chilling tomatoes below 13º Celsius kills metabolic processes still functioning in a picked tomato, Klee says, so the fruit never manages to replace the lovely volatiles that float away.

Even under ideal conditions, genetic differences will matter in flavor. When Klee and his colleagues pamper various commercial varieties, taste panels pan some of them and give the best ones decent but not brilliant ratings. And just because a variety is an heirloom doesn’t mean it tastes great, he cautions. For his taste panels, Cherry Roma is the reigning favorite.

When choosing among generic tomatoes, he recommends going for cherry tomatoes and other little types: “Breeders haven’t had as much time to mess them up,” he says.


http://www.sciencenews.org/view/generic/id/341845/description/Convenience_sh%20oulders_tomato_taste_aside

Monday, July 16, 2012

How to Build a Rain Garden in Your Backyard








An easy-to-build backyard rain garden is a work of art that will help you solve your drainage and runoff issues.

By Patricia Escarcega July/August 2012



Whether your backyard is large or small, rain gardens enhance the landscape while improving runoff problems and the ecosystem.
Brenda Carson/Fotolia






Tired of that muddy puddle in the middle of the yard, or that washed-out mini-gulley that forms whenever a downpour loads up your home’s downspouts? If so, it might be time to get a handle on all that runoff and put it to good use by learning how to build a rain garden. These shallow saucer-shaped gardens, commonly described as “nature’s water filters,” are designed to capture excess runoff that can potentially wreak havoc on your soil and pollute waterways. All you need to create your own rain garden is a well-designed plan, a handful of native plants, and some good old-fashioned elbow grease.

How rain gardens work

Rain gardens are designed to catch storm runoff from rooftops, patios, sidewalks, roads and other impervious surfaces. During a storm, rain gardens will fill with a few inches of water that gradually filter into the ground. When properly designed and constructed, these structures can hold water for around 24 hours and will not attract mosquitoes — they’re much more likely to attract birds and beneficial insects.

Rain gardens can be helpful wherever water runoff is an issue. Ideally, you will want to situate the rain garden in between the source of the runoff and the runoff destination.

Before you break ground, make sure the garden is at least 10 feet from any buildings or structures, and at least 25 feet from any septic system drain field. Also be sure to avoid underground utility lines (call 8-1-1 at least 48 hours before digging), and if you have trees on your property, avoid disturbing established root systems.

Conduct a soil evaluation

Sandy and loamy soils work best for these backyard havens since they tend to drain well. Clay soils can become waterlogged and may not be suitable for a rain garden. Test the drainage of potential sites by digging a percolation test hole that is at least 8 inches wide and 8 inches deep. Fill the hole with water and let stand. Ideally, the water should drain at a rate of about an inch every hour. If you are working with hard clay soil that won’t drain, remove it and replace it with a mix of approximately 60 percent sand, 20 percent topsoil and 20 percent compost.

Calculate rain garden size

A rain garden can be almost any size, but most residential rain gardens range from 100 to 300 square feet. Many are the shape of a saucer or kidney bean, with the largest side facing the source of runoff. Use site conditions as a natural guide in shaping the garden. Rain gardens are generally 4 to 8 inches deep. Anything deeper than 8 inches may pond water, and rain gardens less than 4 inches deep may not provide enough water storage for proper infiltration. The slope of the land should help determine the depth of the garden.

Use the following general guidelines to determine rain garden depth. If the slope is less than 4 percent (4 feet vertical in 100 feet horizontal), build the garden 3 to 5 inches deep. If the slope is between 5 percent and 7 percent, build a garden 6 to 7 inches deep. If you are working with a slope in the 8- to 12-percent range, make the garden about 8 inches deep. Remember, rain gardens are easier to install and tend to work best in places where the ground is relatively level.

To determine the length and width of the rain garden, think about how it will catch runoff. Runoff should spread evenly across the rain garden so water doesn’t pool at one end or spill over before it has a chance to filter into the ground. Plan the garden so that the longer side faces upslope. This will ensure that the garden catches as much runoff as possible, and that the water spreads across the entire length of the garden. The width of the rain garden will depend on the slope of the land, but most residential versions are between 10 and 15 feet wide. Remember, if a rain garden is too wide, it may become necessary to add additional soil to the downhill half of the garden.

Here is a relatively simple formula to approximate measurements for your rain garden. First, find out which hard surfaces will be producing the storm runoff for your garden.

Let’s say you are planning to use roof runoff as the main source of water. In this example, you would measure only the parts of the roof that will be “feeding” the garden. Measure the width and length (in feet) of that part of the roof, then multiply the two numbers to get the square footage. This number is your “drain area.” If you are gardening with sandy or loamy soil, plan on making your rain garden about 20 percent to 30 percent of the drain area size. For instance, if the part of the roof that will provide runoff to the garden measures 1,000 square feet, you’ll want to make the rain garden 20 percent to 30 percent of that number, or 200 to 300 square feet in size. If you are working with clay soils, plan on making the rain garden larger to compensate for poor drainage.

Prepare the site

Start by defining the borders of the rain garden by laying a string or hose around the perimeter or marking it with fluorescent spray paint. You can use a rototiller or backhoe, or dig by hand, depending on the size and depth of your garden. As you dig to the desired depth, heap the soil around the downhill edges to create a berm. Once the soil excavation is complete, use a hand level to make sure the bottom of the garden floor is level. Mix and add necessary soil amendments. Again, if you are working with clay soil, create a simple garden soil mix of sand, topsoil and compost to amend or replace the difficult soil. Once the soil has been amended, let it settle overnight before planting.

Planting and care

Choose native plants appropriate for the sunlight exposure and soil conditions of your rain garden. Plants need to tolerate standing water for up to 48 hours, as well as some periods of drought. First-time rain gardeners are encouraged to contact their local soil and water conservation district for a list of native plants that work well under local conditions. Keep identification tags on the plants — or otherwise label them. Some plants may thrive better than others, and this can help you start to identify plants that work best in your garden.

Now it’s time to plant. As a general rule, plant shrubs 3 feet apart, perennials 1 foot apart, and annuals 6 to 8 inches apart. Apply 3 inches of mulch, and water plants immediately after installation.

Most rain gardens do not require much maintenance. Check plants periodically for signs of wilting, and weed as necessary. Also, check for berm failure and ponding. If standing water occurs longer than two days, this is a sign that the garden is not draining properly.

A rain garden offers an opportunity to use your imagination, so be creative as you design a beautiful oasis on your property. A writer and gardener living in Phoenix, Patricia Escarcega is always looking for and experimenting with new ways to conserve water while keeping a garden in the desert.

http://www.grit.com/property/landscaping/how-to-build-a-rain-garden-zm0z12jazsie.aspx?

Monday, July 9, 2012

Organic Tomatoes ARE More Nutritious!











From: Akhila Vijayaraghavan,
Published July 9, 2012 06:30 AM













The debate about whether organic food has more nutrients might be finally settled, at least in the case of tomatoes. The latest research from the University of Barcelona shows that organic tomatoes have higher levels of antioxidants than chemically-grown ones. The research team studied and analysed the chemical structure of the Daniela variety of tomato.

According to The Daily Mail: "They detected 34 different beneficial compounds in both the organic and conventional versions”� However they found that overall the organic tomatoes contained higher level of the polyphenols. The scientists says this difference between organic and conventional tomatoes can be explained by the manure used to grown them."

This makes sense because plants produce polyphenols to fight off diseases, and when we ingest them, we get the same disease prevention benefits. In a chemically-intensive agricultural system however, the plants’ natural ability to defend itself is diminished as that work is taken on by pesticides and fungicides. Polyphenols are a class of natural antioxidants and they halt the development of certain cancers as well as some chronic conditions due to their anti-inflammatory properties. There is a class of polyphenols called flavonols which impart flavour and taste to fruits or vegetables. That's the reason why organically grown food is said to taste better, although this is debatable.

However the scientific findings that organic tomatoes have more polyphenols than conventionally grown ones is more proof that chemical agriculture does not impart any nutritional value to food. Although this has been proven before in 2004 in a study by UC Davis, and more recently by the University of Newscastle,  the nutritional superiority of organic food still is a subject for intense research.

In spite of the results of the research, organic food still has not gained widespread acceptance. It is still more expensive than chemically grown food and the market for organic food still remains stagnant. In many countries, organic food is not even widely available. All of this needs to change before people are able to benefit from the nutritionally benefits of organic food.


http://www.enn.com/top_stories/article/44638
Whole article  http://www.triplepundit.com/2012/07/spanish-researchers-find-organic-tomatoes-nutrients/