Barter system

In this forum topic, we can discuss on how to be barter vegetables. Each vegetable has differnt growth and harvest time, the yield is different, by weight might not match. So how do we determine let's say 1 KG of Tomato equates to how many KG of Brinjal?

We could create a matrix to have a multiplication factor to derive at a point based system.

For example, let us take tomato and brinjal as below -

  Tomato Brinjal Radish Cucumber
growth duration        
Yield per Sq. Feet        
All season/seasonal        
ease of cultivation in terrace        

Growth duration: Longer for the plant to grow and produce yield, the higher point it gets. Growth duration of less than 30 days would be 1 point, 30-45 days would be 2 points, 45-60 days would be 3 points, 60 days < 90 days 4 points and above 90 days 5 points.

Yield per Sq. Feet: we will need to extrapolate yield per acre and derive for Sq. Feet. Higher the yield, lower the point and lower the yield, higer the points.

All season/seasonal: crops that can be grown year long would have a lower point, as compared to seasonal crops, which will be having a higher points allocated to it.

Suitable for Terrace gardening: This factor indicates if a vegetable or a fruit is difficult to cultivate on terrace. For instance, a pineapple would be a difficult one to grow and will have a higher number as compared to tomato. It is a feel of general practices where a few are easy to grow, while others need elaborate setup and maintenance.

Points: The multiplication of the above fields would give points for the vegetable. This can then be used to barter. For instance a vegetable (A) that has a total of 3 points and another with a total of 9 points (B) would mean that 3KG of A can be bartered with 1 KG of B.

Roopa Ramamurthy's picture

Hi Vignesh,

 I think to begin with our system is to give what we have excess in organic garden and what we can trade with.

2 options I can think of

- equalize the quantity (not based on points) as above. For example, if I have 1 kg of beans, then somebody has 1 kg of brinjal to exchange. I agree we need to come up with the better plan here.

- Identify the next season harvest and we will identify the volunteer who wants to grow and decide a yield day!

 For example,

Person1 - sow radish in 10 pots- say 2 seeds in each

Person 2 - sow palak in 10 pots

Person 3- sow Tomato in 10 pots

Person 4 - sow xxx in 10 pots

Monitor the growth and progress and have a yield sharing day and proceed. We may need to categorize yield day by grouping similar yielding in one set(say 60/90/120 days) yield.

Hope this Helps!


Timing the yield would be a challenge. My observation has been that at any given day, we would get about 2 beans per plant and with 10 pots or so, we would get about 20 to 25 beans, which would be about 1/4KG. With this, it would be difficult to give to any one as the household itself would be consuming it. 

How can we build enthusiasm so that folks who are growing one variety would be able to share their produce and in the same way get produce on another day from someone else?

To cater to these is why I was suggesting point system. Everyone who is associated with this program would have credit and debit account, but of Vegetables. So today I have 1KG of Beans which has a point of 3 and if I were to give it off, then I also can get 3 points worth of vegetable from someone else on some other day. Now let us say that tomato has a points of 1, then this person who has a credit of 3 is now entitled to get 3 portions of Tomato. This way, the credit and debit would constantly even out over time. Now let us say the person who shared the tomato gains 1 point by giving away the tomato, he would now be entitled for 1/3KG of beans.

To start with, to keep it simple, we could for sure get the credit and debit to work with weight of the produce shared. So someone share a KG of tomato today, they can get a KG of combination of vegetables on any given day. All these exchanges are excess produce by the community.

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