Spreading rock dust on fields could remove vast amounts of CO2 from air

Re:Spreading rock dust on fields could remove vast amounts o... by jelliclesfarm on Wednesday July 08, 2020 @02:39PM (#23772913)

I think we need a systems approach in Ag ..in both small or industrial farming..too. So we can achieve systems level results.

Software can be helpful but it’s enhancements contribute very little to the profit margins.

Take for example this cost analysis of orient eggplant for 2005(I picked this eggplant because it’s not a commodity crop grown by industrial Ag and is niche. In other words, it’s not like lettuce or strawberries or corn or soy)

http://sfp.ucdavis.edu/crops/coststudieshtml/BpEggplantOrien...

Check the percent of labour costs and capital/equip costs wrt operating costs. Software will help as part of the bigger systems approach, but at the end of the day, the urgent problem we need to tackle is labour costs and labour availability.

[ Parent | on HN ]

Re:Spreading rock dust on fields could remove vast amounts o... by abakker on Thursday July 09, 2020 @01:05AM (#23777103)

Systems example: farmers are paid per pound for tomatoes. They therefore want to water heavily before harvest so the tomatoes get as heavy as possible. Then they ship the heaviest possible tomatoes to a factory to be dehydrated into ketchup, sauce, and other canned goods.

The energy loss comes in 3 different parts - water waste, extra fuel in shipping, and in energy to dehydrate. Everyone pays more.

The system solution would be to price the tomato solids, not the water.

[ Parent | on HN ]

Re:Spreading rock dust on fields could remove vast amounts o... by mschuster91 on Thursday July 09, 2020 @03:01AM (#23777691)

How are you going to reliably measure the solid content without destroying the tomato though?

[ Parent | on HN ]

Re:Spreading rock dust on fields could remove vast amounts o... by evgen on Thursday July 09, 2020 @08:17AM (#23779344)

Sampling. It is already the case that grains are tested and priced based on dry weight, it would not be hard to do the same for some of the larger veg crops.

[ Parent | on HN ]

Re:Spreading rock dust on fields could remove vast amounts o... by jelliclesfarm on Thursday July 09, 2020 @12:26PM (#23781890)

This point is moot. Canning tomatoes are different from market tomatoes grown for weight. Most tomatoes are harvested mechanically while green and unripe. They are gassed to ripeness.

[ Parent | on HN ]

Re:Spreading rock dust on fields could remove vast amounts o... by jelliclesfarm on Thursday July 09, 2020 @12:35PM (#23781983)

I don’t want to derail this thread but I just posted elsewhere(re: tomatoes) this:

https://news.ycombinator.com/item?id=23781972

And this:

https://news.ycombinator.com/item?id=23781897

[ Parent | on HN ]

Re:Spreading rock dust on fields could remove vast amounts o... by kitotik on Wednesday July 08, 2020 @04:05PM (#23773689)

Thank you. The systems approach does seem to be the only way to meaningful impact.

“Simply” automating the existing systems doesn’t seem the right approach either.

[ Parent | on HN ]