This article was written by guest-writer Barbara Roemer from Lost Hill Farms in Nevada City, California. Barbara is also an SEG solar customer and former teacher of 2 of our employees!

Gee, Whiz!

IT’S PLANTING TIME! Many of you waited out our recent frosts and are planting your hot season vegetables: tomatoes, eggplant, peppers, corn, cucumbers, melons, squash, potatoes, and beans, as well as new successions of lettuce, kale, cabbages, carrots, beets. Probably you amended your soil before you planted – compost or even fertilizers….NPK? Nitrogen, phosphorous, potassium? You may have had a soil test done, too, but whether you did or not, you’d likely find your soil to be in need of nitrogen. N generally leaches out with winter rains and even with irrigation. All the veggies above are at least light feeders, except for beans, and many are heavy feeders.

How will you provide more nitrogen through our long growing season?

One option is to spend between $1 and $2.50 per pound for fertilizer, twice per year. The highest nitrogen content of packaged fertilizer is about 12%, so if you buy a 100 pound sack of blood meal, it contains about 12 pounds of actual nitrogen. You’d apply that at 2-3 pounds per hundred square feet, at a cost of $4-$6, depending on volume pricing. But you’d have bought ONLY nitrogen….You still may need to add phosphorous and potassium.

FREE FERTILIZER??

What If you discovered you have an in-house, readily available, infinitely renewable source of nitrogen? You do! Your own urine! Each time you pee, which for most people is about five times per day, you produce nitrogen which is readily available to plants. Your daily pee, anywhere from a quart to half gallon, produces from about 0.15 to .3 ounces of nitrogen per day. To put it in perspective, one mature fruit tree needs about one pee per day beneath it for the whole year. Or, one day’s pee could fertilize ten square feet of your veggies. And you probably only need to fertilize them about twice per season. Our veggie garden is large – about 40′ x 80′, or 3200 sq feet. That means that with their own urine, one person could fertilize the whole garden completely once per year. Clearly, I need to enlist other family members! Or, I could spend about $150, for one fertilization per year using corn, crab, alfalfa, or blood meals. And I need to fertilize twice yearly….

IS URINE A BALANCED FERTILIZER?

Some nitrogen fertilizers also contain P and K. Blood meal has only N, whereas urine has a ratio of 10-1-4, and contains some magnesium and calcium as well as sulfur. Urine is a well-balanced, high nitrogen fertilizer.

HOW TO APPLY URINE

Urine is pretty concentrated, so most sources recommend diluting it 1:10 urine to water. Apply it in a soil drench without getting it on the plant leaves. Pour the diluted urine into a trench around established plants at their drip line. If you do get it on leaves, just rinse off the plant to avoid leaf burn. You can pee into a cut down milk jug, and then you’ll want to apply the golden liquid daily or pour it into a jug with a lid if you are storing it, because it gets very  smelly after a few days. If you want to fertilize fruit trees, pee directly on a different one every day or use your daily dilution to surround the tree.

IS IT SAFE??

Urine can be stored for 1-6 months to kill any pathogens contaminating it, but for the average family just peeing in a jug or two, that’s not a concern. Urine is not sterile, containing some bacteria, but unless it’s contaminated with feces, it is unlikely to contain any pathogens. Don’t collect urine if you have an infection or you are taking prescription drugs. No crops should be fertilized with anything for at least a month before harvest.

Editors addition: below is a video showing a comparison for fertilizer, not scientific, but…

 

ENVIRONMENTAL BENEFITS

Most nitrogen, phosphorous and potassium are mined from limited resources. Fertilizer sources need to be collected, packaged in plastic, transported and warehoused. In the case of potassium, the US imports 85% of what it uses. That’s a big energy footprint eliminated when you just pee in a bucket! Using pee as your fertilizer means you conserve water (fewer flushes) and waste water treatment where urine is mixed with feces. Because you will be aware of how much urine you need to put on, you’ll be avoiding excess runoff from fertilizers which result in ocean dead
zones and algal blooms.

LIQUID GOLD REGENERATIVE GARDENING

Close the resource loop. Save money. Create fertility. Do your part for the planet. Fertilize with that rich, truly homemade pee!

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Editor’s note:
The author, a retired teacher, recently learned that a couple of her students are part of SEG. (Our President and our Electrician!) How to she find this out?

While talking in the office about pee are fertilizer (yes we do that at SEG!), our electrician remembered a study he had with the author when he was a child, 25 years ago, when he learned about the viability of fertilizing with urine and how it could save resources. To our smiling amazement, the author, who we came to find out is also a solar customer with SEG, had an everlasting effect on one of her students to this very day! For that we want to say thank you to Barbara and to all the teachers helping cultivate the next generation of doers and thinkers who’s work is now creating a better future for us all! 

More resources:

In depth analysis of human urine: www.livingwebfarms.org/waste-not-urine/

This article was written by guest-author Travis Duckworth, director of the Sol Learning Institute based Nevada City, CA. 

Relevant Education – Empowering Our Community With Skills In Sustainability

A plaster hello from Nadine*
*these pictures are from our 2020-2021 school year so students will often be seen wearing masks to adhere to California regulations to continue operating an in-person Outdoor School during the COVID-19 shutdown.

The time for incremental change is no longer an option and the most powerful shifts we, as a community, can offer occur right here, right now. In an effort to address big issues at a local level, I launched the Sol Learning Institute in 2020. The goal is to empower ourselves with applicable skills in sustainable architecture, agriculture, and economics. Here, students come to learn how to build, and power, their own homes, grow their own food, and start their own businesses while supporting local infrastructure.

It is an honor to be able to offer such opportunities and to be asked to share some of those here in this newsletter. Below you will find a short description of our current programming and plans for the future. I hope it will inspire you to join in the conversation of finding and implementing real solutions here in Nevada County!

 

THE SOL EXPERIENCE 

Our flagship program is geared towards young adults, ages 15-25, and combines a big, umbrella picture of sustainable skill development paired with some elements of workforce development. We run this program roughly in-step with local school districts from September through May. To give an overview of what we do, I thought I would include a list of last year’s activities. Meeting, 2x/week for 15 weeks each semester, it’s challenging to conceptualize that these powerful “kids” did all of this in 60 days!

 

 

Here goes:

Built a strawbale GOAT BARN

• Constructed doors from scratch
• Blacksmithed hardware for said doors
• Gable metal roof using salvaged lumber
• Yaki sugi (or shou sugi ban) burning as a preservation technique
• Rubble trench and earthbag foundation
• Earthen plaster

Built a timber framed CHICKEN COOP

• Framed with local fallen cedar logs, peeled with draw knives
• Pallet, wattle and daub, cordwood, and light clay straw walls
• Natural preconditioners and sealers on wood trim
• Built doors and blacksmithed hardware
• Reciprocal roof

 

Built a COMPOSTING TOILET

• Conventional framing
• Simple solar electrical installation
• Living roof planted with native wildflowers
• Rainwater catchment system to feed to foot pump sink

 

Built a GEODESIC DOME GREENHOUSE

Built a PIZZA OVEN

• Earthbag base
• Natural rock and mortar finish
• Mosaic tile countertop
• Earthen and lime plaster finish
• Plaster pigments (integrated and fresco)
• Oven bricks from scratch (sand and clay)

 

Made FOOD

• Ricotta
• Sourdough pizzas
• Pancakes
• Kombucha
• Sauerkraut
• Fermented hot sauce
• Preserved lemons
• Garam masala
• Chicken/Seitan tikka masala
• Vegetable stir fry
• Goat cheese

Made ART and SELF CARE PRODUCTS

• Chapstick
• Deodorant
• Blacksmithed spoons, knives, latches, handles, hooks
• Clay pinch pots
• Ceramic slab projects
• Clay whistles
• Tile mosaics
• Baskets (from raffia they dyed)
• Notebooks (bound by hand)
• Indigo dyed fabrics
• Screen printed shirts (w/ student design)
• Glass bottle bricks
• Leatherwork

Learned FARMING and COMPOSTING TECHNIQUES:

• Black soldier flies
• Red wiggler worms
• Bokashi
• Berkeley hot composting
• Micro/soil biology workshop
• Various mulching applications
• Blueberry protection and fertilization
• Transplanted lots and lots of plants
• Germinated lots and lots of seed starts
• Built cold frames
• Milked goats
• Planted a fruit orchard
• Planted tomatoes

 

Installed ENERGY SYSTEMS

• Methane biodigester
• Biodiesel
• Learned about solar systems and applications
• Soldered solar cells to make their own PV modules

Participated in a local CONTROLLED BURN

…and I’m probably forgetting a few things, but here’s a cute picture!

TINY HOMES FOR THE HOMELESS (and others)

Our current programming focus is aimed at helping to address affordable housing in our community. Many of our young students and families that are renting are facing the very real prospect of not being able to afford to stay in the community they grew up in, our homeless population is growing, and we have a very real need for fire evacuation shelter options. To help contribute to the conversation surrounding these issues, we have launched a Community Tiny House Build Series and are creating an all encompassing Tiny House Build Kit and Instructional Video Course. 

 

Community Tiny House Build Series:
Adult students will be constructing 2 tiny houses from scratch over a 6 month series in collaboration with local contractors, electricians, plumbers, carpenters, and teachers. This will empower them with entry-level skills to build most residential structures that they can transfer to building their own tiny houses, Accessory Dwelling Units (ADUs), workshops, or simply to remodel and maintain their own homes. Throughout the build, we will be inviting City Council members and our Board of Supervisors to visit and have real discussions around how we as a community will address our affordable housing crisis. I hope you all will follow or join us for this exciting endeavor.

Tiny House Build Kit and Instructional Video Course:
We are simultaneously starting to take orders for entire build kits and an accompanying instructional course for a simple and functional tiny house that would include everything needed for construction, from basic framing through electrical and plumbing and on to finish cabinets and appliances. While this is definitely not an IKEA and allen wrench project, it is quite approachable and incredibly empowering. 

Our goal is to employ local youth in the assembly and packaging of build kits that can then be used by individuals and organizations looking to put a roof over someone’s head without purchasing new from a manufacturer. Much like Habitat for Humanity, I envision families, church groups, schools, or community non-profits coming together to be part of providing solutions and advocating for low cost opportunities to meet the needs of our most vulnerable populations, particularly with regards to permitting and zoning. There is movement happening both in California and nationally and I’m excited to see how Nevada County meets the challenge.

UPCOMING WORKSHOPS/PROGRAMMING

This is the point that most schools would say to “stay tuned” for upcoming workshops and calendar updates and please do, but I want to end by turning it back to the community. 

What do you want to learn? 

What issues do you want to collaborate on to shift us towards solution-oriented discussions? 

Much of what we face locally, nationally, and globally is quite daunting and can easily become paralyzing. I believe that we can come together locally to begin creating opportunities and exploring ways to make an impact and in doing so have a ripple effect that will have lasting and monumental change, please be a part of it. 

As always, thank you for taking the time to read through this and for supporting Relevant Education in the foothills. If you have any questions, ideas, or would like to have a conversation, please do reach out! 

 

Please do reach out:

www.SolLearning.com

travis@SolLearning.com

www.facebook.com/sollearninginstitute