bce1
Ausprep Staff 
Posts: 819 
Likes: 1,581
|
Post by bce1 on Apr 20, 2022 16:01:57 GMT 10
Yields this year.
400kgs of pumpkin (1kg = 1000 kjs) = 400 x 1000 = 400,000 KJ
200kgs of potato (1kg = 3000kj) = 200 x 3000 = 600,000KJ
150kgs of applies (1kg = 2000kj) = 150 x 2000 = 300,000kj
1,300,000kjs
8000 Kj day = 1 person per day = 160 days
5 people in family = 32 day food !! Assuming zero wastage.
It looks like a truck load of food but just on a month if relying solely on it !
We aren't trying to be self sufficient and we have previously gone for months only buying milk and meat but nice to get a feel for it.
We also have chickens and eggs and bees and honey and grow lots of other fruit and veggies and if I did a more comprehensive calculation including more food clearly it would be longer, but it is a bit disconcerting to see how short a period of time, such a huge apparent amount of food lasts for.
We preserve olives and cabbage but not 100s of kg - but that's still only a few hundred thousands Kjs
We have 10 x 20 in wheat - so if I get a good yield off that - will know soon !! - that's probably another 1,500,000 KJ + a similar amount from corn - that should add another 2 months, but that's only 3 months.
This is hard work !! :-)
|
|
frostbite
VIP Member
Posts: 5,719
Likes: 7,119
|
Post by frostbite on Apr 20, 2022 16:05:01 GMT 10
How many kjs in an adult Sambar?
|
|
bce1
Ausprep Staff
Posts: 819
Likes: 1,581
|
Post by bce1 on Apr 20, 2022 17:04:02 GMT 10
Venison is 6000kj per kg.
|
|
Beno
Senior Member
Posts: 1,310
Likes: 1,433
Location: Northern Rivers
|
Post by Beno on Apr 20, 2022 17:51:37 GMT 10
It is hard work and often quite variable in terms of expected outcomes or production. Meat will be my mainstay. Our crazy wet summer has had an impact on grown food. some things did well while others suffered but my walking meat larders kept on growing.
|
|
|
|
Post by Stealth on Apr 20, 2022 23:38:14 GMT 10
And here was me being all proud of the five pumpkins that I harvested today. Probably about 8kg in total lol. But you're absolutely right, it's somewhat disturbing to realise how quickly large amounts of produce can be used up by one family. Dried produce is vital for survival but fresh gives you the nutrients that you need to thrive.
|
|
|
|
Post by ausprep130 on Apr 21, 2022 0:10:27 GMT 10
Yields this year. 400kgs of pumpkin (1kg = 1000 kjs) = 400 x 1000 = 400,000 KJ 200kgs of potato (1kg = 3000kj) = 200 x 3000 = 600,000KJ 150kgs of applies (1kg = 2000kj) = 150 x 2000 = 300,000kj 1,300,000kjs 8000 Kj day = 1 person per day = 160 days 5 people in family = 32 day food !! Assuming zero wastage. It looks like a truck load of food but just on a month if relying solely on it ! We aren't trying to be self sufficient and we have previously gone for months only buying milk and meat but nice to get a feel for it. We also have chickens and eggs and bees and honey and grow lots of other fruit and veggies and if I did a more comprehensive calculation including more food clearly it would be longer, but it is a bit disconcerting to see how short a period of time, such a huge apparent amount of food lasts for. We preserve olives and cabbage but not 100s of kg - but that's still only a few hundred thousands Kjs We have 10 x 20 in wheat - so if I get a good yield off that - will know soon !! - that's probably another 1,500,000 KJ + a similar amount from corn - that should add another 2 months, but that's only 3 months. This is hard work !! :-) I know you've put the figures there to demonstrate the point of a truck load of food not lasting long and the point is well noted. Hypothetically, if you only had the pumpkin, potatoes and apples that works out to approx 2.5kg of pumpkin per person per day to reach the 8000Kj. I don't think you could eat that much pumpkin so you'd have to reduce the Kj which will increase the days. Or swap for other foods etc. But luckily you have lots of other food sources to compliment it. |
|
tomatoes
Senior Member
Posts: 1,065 
Likes: 1,089
|
Post by tomatoes on Apr 22, 2022 10:41:41 GMT 10
Yes, you’d need to add something higher kJ to the menu (garden) like maybe nuts. Could also add avocados. I know that nut trees take a while, but this does show that it would be worth getting some of them started.
You could also add soy beans as they’re high fat as well as having a good balance of amino acids.
It’s a really interesting exercise though. It would be great to add to it and change it up until we ended up with enough kJ for a family/group of, say, 4 or 6, just fed from the garden. Obviously you’d hope for some other sources of food too but you also might have reduced production or more mouths to feed, so it would be a starting point.
And even if you’d supplement with greens and other more watery veg, I would just keep it simple and not count them in the kJ - their prime benefit would be in important nutrients.
|
|
tomatoes
Senior Member
Posts: 1,065
Likes: 1,089
|
Post by tomatoes on Apr 22, 2022 10:57:21 GMT 10
Quick google - about 12 kg macadamias from a mature tree. I think that’s shelled (saw 20-30kg in shell on a different site), but that isn’t until year 12. Small yields starting from year 4-5.
30g = 906kJ
So assuming nature trees but only 10kg, that should give 302 000kJ - did I get that right?
I think it’s time to plant two macadamia trees. To get the numbers up you really need a nut plantation, and I don’t have that much space, but a couple of trees will help.
|
|
tomatoes
Senior Member
Posts: 1,065
Likes: 1,089
|
Post by tomatoes on Apr 22, 2022 11:04:44 GMT 10
Might have to add chooks - 310 kJ per egg. Say averaging 4 eggs a day for just a small backyard coop (6 hens, but they don’t lay consistently all year - would average 4 a day be correct? I haven’t owned hens for about 14 years).
4x365x310 = 452 600kJ per year
|
|
bce1
Ausprep Staff
Posts: 819
Likes: 1,581
|
Post by bce1 on Apr 22, 2022 11:06:40 GMT 10
The food fatigue thing is very real - there is no way I could eat my share of 400kgs of pumpkin - I would go insane!! We will give away or feed 3/4 to the pigs.
Thanks for the suggestions Tomatos - we do have nut trees - 3 almond and 2 walnut - they are reasonably prolific, but I hadn't been thinking of them as between kids and birds the final yields are low!! But both those pests are manageable!!
I think it also shows per frostbites comment about the Sambar that animal meat adds substantially to the KJ count.
I was watching a YT channel of a family living in the middle of Mongolia or somewhere similar and they slaughtered a lamb or goat every 3-4 weeks - 15 a year - and that combined with subsistence farming made for quite a chubby family who were no short of KJs - although maybe a 7-11 was just around corner - but it did look pretty remote. My two take aways was it is possible with a smallish herd to have a significant meat diet and the value of animal fat both for KJs and for other products - grease, lamps, soap....
|
|
malewithatail
VIP Member
Posts: 3,963
Likes: 1,380
Location: Northern Rivers NSW
|
Post by malewithatail on Apr 22, 2022 11:17:48 GMT 10
We too have several maca trees about 30 years old, u need at least 2 of them so they cross pollinate. Also we have pecans, 300 olives that are 30 years old, and some carob trees as well, all about 20 years old and bearing well.
You know you own an old tractor when.....You try to schedule your vacations around tractor shows without making it obvious to the family.
|
|
tomatoes
Senior Member
Posts: 1,065
Likes: 1,089
|
Post by tomatoes on Apr 22, 2022 11:30:44 GMT 10
Please someone correct these numbers with your own experience - I’m trying to estimate how much space you’d need to grow a useful amount of dry beans.
6 m row of beans might yield 1 kg dry beans.
Borlotti beans - on the dry packet says 1220kJ per 100g - I’m assuming that’s 100g dried but it doesn’t say. So 12200kJ for 1 kg.
Soy beans - 28800kJ for 1 kg
|
|
tomatoes
Senior Member
Posts: 1,065
Likes: 1,089
|
Post by tomatoes on Apr 22, 2022 11:33:57 GMT 10
Yields this year. 400kgs of pumpkin (1kg = 1000 kjs) = 400 x 1000 = 400,000 KJ 200kgs of potato (1kg = 3000kj) = 200 x 3000 = 600,000KJ 150kgs of applies (1kg = 2000kj) = 150 x 2000 = 300,000kj 1,300,000kjs 8000 Kj day = 1 person per day = 160 days 5 people in family = 32 day food !! Assuming zero wastage. It looks like a truck load of food but just on a month if relying solely on it ! We aren't trying to be self sufficient and we have previously gone for months only buying milk and meat but nice to get a feel for it. We also have chickens and eggs and bees and honey and grow lots of other fruit and veggies and if I did a more comprehensive calculation including more food clearly it would be longer, but it is a bit disconcerting to see how short a period of time, such a huge apparent amount of food lasts for. We preserve olives and cabbage but not 100s of kg - but that's still only a few hundred thousands Kjs We have 10 x 20 in wheat - so if I get a good yield off that - will know soon !! - that's probably another 1,500,000 KJ + a similar amount from corn - that should add another 2 months, but that's only 3 months. This is hard work !! :-) I’ll be very interested to hear what your yield is from the wheat and how you go processing it. |
|
tomatoes
Senior Member
Posts: 1,065
Likes: 1,089
|
Post by tomatoes on Apr 22, 2022 11:35:39 GMT 10
We too have several maca trees about 30 years old, u need at least 2 of them so they cross pollinate. Also we have pecans, 300 olives that are 30 years old, and some carob trees as well, all about 20 years old and bearing well. You know you own an old tractor when.....You try to schedule your vacations around tractor shows without making it obvious to the family. Do you know how much you get from the macadamia trees? |
|
|
|
Post by ausprep130 on Apr 22, 2022 11:37:24 GMT 10
Might have to add chooks - 310 kJ per egg. Say averaging 4 eggs a day for just a small backyard coop (6 hens, but they don’t lay consistently all year - would average 4 a day be correct? I haven’t owned hens for about 14 years). 4x365x310 = 452 600kJ per year There's a few YT videos about preserving raw eggs. They need to be clean but unwashed - which rules out shop bought eggs. Search "preserving raw eggs" OR 'water glassing eggs' |
|
malewithatail
VIP Member
Posts: 3,963
Likes: 1,380
Location: Northern Rivers NSW
|
Post by malewithatail on Apr 22, 2022 12:38:44 GMT 10
We have just harvested the maccas and almost got a 5 gallon bucket full from each tree, the pecans were not as good, only a couple of ice cream containers per tree.
One advantage of being in Northern NSW is that we can grow almost all year round, the missus is at present planting lettuce seedlings in planters made from 20 liter plastic oil drums, washed out with the top cut off and 1/2 inch holes drilled in the base. Cheaper than $12 each from Bunnings for 20 liter pots.
Once I get the grass under control, it will be firewood time.
You know you own an old tractor when.....When starting, you purposely leave the tin can over the exhaust pipe, just to see if you can catch it.
|
|
