Ah, thanks for bringing this back up, Sarah! It's that time of year again, and I'm going over this to put my garden experiments together for this year.
My first 80 foot buried-wood garden bed is going into its second summer, after one winter of soaking up rain (and snow!). So it will be interesting to see how it does with water this year. There is another 80 foot bed that was built late in the fall, so it should have soaked up quite a bit as well. The next two beds will be built in the next month, and so will have less time to soak up water. So it will be interesting to compare the second year beds with the first year beds, in terms of water consumption, plant growth, weed pressure, and general healthiness.
There will be an area at the back of the garden that is going to be the start of the food forest, but this year I will be planting lots of different things in there - annual and perennial - all mixed together, just to get some stuff growing, build up the organic matter in that area, and provide nurse crops for the trees and shrubs. I am going to irrigate half, and let the other half fend for itself. This will only happen if we get the fence up, as there is really no point in planting anything outside a fence here - the deer will just enjoy a smorgasbord, and I'll get nada.
What a fantastic thread that I never saw before.
We have a rainy season and a hot, dry season.
We use zai holes especially for starting bananas and trees. We dig them before the dry season, fill them with whatever organic goodness we have on hand, let them sit through the dry season, and then plant the banana suckers or whatever else once the rain starts. We keep dumping mulch, weeds, manure into the depression. By the time the next drought hits, the banana is well established and has a spot of happy soil. It weathers the dry season with no problem.
Some crops, if well rooted and established in the rainy season, can continue to survive the drought. Sweet potatoes and cassavas keep doing their thing, and stay lush and green even when the weeds around them are totally dry and brown. Somehow the tubers keep working, even though the soil is baked like a brick.
I dug a "rippled" garden of something like mini swales and berms down in the wettest part if our property. During the wet season I plant on the high parts, and put the mulch and organic goodness in the trenches. During the dry season I plant in the trenches and mulch/fertilize the hills. This has worked fabulously to keep my annual green leafy veggies going through the seasonal drought. Especially if I get the seeds in the ground before the rains stop entirely. I was late this year, thus I watered it only twice, by hand, with a watering can. That was enough to get them through.
I think this stuff is super important to learn, study, and experiment. Kenya is becoming hotter and drier, and this year the seasonal rains failed in some parts. Better to have some skills before the well runs dry.
Tracy Wandling wrote:Rules of Engagement for this thread:
The purpose of this thread is to get a whole bunch of possibilities and ideas for dryland farming (no-irrigation gardening, dry farming, or whatever you want to call it) together in one thread. There are a squillion different gardening systems, conditions, and preferences. So, maybe lots of these ideas will work for you, maybe some will work for you, and maybe only one or two will work for you. That doesn’t mean that the ideas I have put forth, or the ideas that other people will hopefully post to this thread, don’t work, at all, anywhere; and it would be great if we didn’t derail the purpose of this thread with all kinds of ‘discussions’ about why something doesn’t work, and what works the best, and asking for citations and proof. These are just ideas. They will all probably work somewhere, sometimes, for somebody.
These are just ideas to get the ol’ creative juices going, and help people start to think about how they might be able to cut down on watering, or eliminate it completely. This is not a recipe, or a tried-and-true method, just ideas.
If you feel the need to pontificate about your personal feelings about a particular topic that is likely to derail this thread, and lead to silliness, then it would be awesome if you started a thread of your own, so you can get specific about a certain thing that you are feeling passionate about. Then we can keep this thread as a place to put forth ideas that might help somebody somewhere who is trying to grow without irrigation, or at least lessen their water consumption in the garden.
Some time, folks need to look at their property with fresh eyes:The idea that surrounded by water you could need to have a 650ft well was the first thing that intrigued me about your post. Congratulations on having thoroughly researched your site and putting forth so many ideas, by the way. I printed out your whole post as I'm sure there will be more ideas that I can use. From the cold hardiness map, you look to be in a zone 7+, which was also a surprise to me. I knew that the gulf current brought the temperature up, but zone 7? (I wish!) in the central sands of Wisconsin, I am in a very cold zone 4. We have 35 ft of sand under our feet. Pure sand. and we get an average of only 34"of rain/ year. What you said about getting prepared to be water deficient also hit a nerve: We have a CAFO ((Confined Animal Feeding Operation) that wants to settle very close and with their High Capacity wells dug at 175 ft, (My well is 28 ft, with first water at 10 ft) we fear that they will leave us high and dry, or with polluted wells, so I'm with you in thinking "water scarcity" coming!
Since you are on an island, is the water around you, (with the some rivers nearby) have you checked the salinity of the water and could you be close enough to pull fresh water at lower tide? There are system to desalinize water, and some may be affordable since they must use something on ships on long voyages. With Vancouver nearby, someone might be able to hook you up with a refurbished machine? As you describe your soil, Yikes! my soil is poorer than "dirt poor" since we essentially do not have "dirt" in it, but at my age, I'm not sure I'd want to essentially clean a soil of rocks. What kind of natural vegetation do you have there? If you want to minimize your fight with rocks, you might have to build beds. You did mention Hugelkultur and indeed, that may be your best bet. the other thing I noticed is that you receive 58"of rain/year. Do you have a large roof from which you could catch water? It is amazing the amount of water we can catch with just 1"of rain.
Figure out the total surface of your roof from gutter tip to gutter tip, all round. A regular home around here maybe close to 2,000 square feet. Pour 1" of rain on this and you get about 1200 gallons. X by 58 and you get...69600 gallons of fresh water/ year... Not too shabby if you can direct it to your crops or in a cistern. Here is a link: http://www.rainbarrelguide.com/how-much-water-can-you-collect-in-rain-barrels-during-a-rainfall/ With sandy and rocky soils, our best option maybe to make piles of mulch and grow stuff into them. There are sawmill nearby? could they deliver sawdust/ bark etc.? I prefer to use stuff that is already on my property, but adding a one time large amount and sprinkle it in raised beds may be an option. I have a horse farmer across the road. We clean their barn once a year in exchange for the free manure. If you can find one nearby, they could help you too. We are not islands, right? (haha, could not resist). I'm pulling for you and hope that all you dream comes to fruition. You certainly have done a lot of thinking on your project already./
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