With rising populations and changing climate conditions, the need for resilient and reliable crops has never been greater. Nitrogen—an essential element for plant growth—is often woefully absent in heavily farmed land. Earth's atmosphere offers an overabundance of nitrogen, but how can it be safely and sustainably transferred into the soil? Nitrogen-eating bacteria may be the answer.
An international team of researchers, including three from the U.S. Department of Energy's Brookhaven National Laboratory, has tracked nitrogen as soil bacteria pull it from the air and release it as plant-friendly ammonium. This process—called biological nitrogen fixation, or BNF—was found to substantially promote growth in certain grass crops, offering new strategies for eco-friendly farming.
"Our results show that healthy growth can be achieved by combining certain soil bacteria with grasses, even when plants are grown in extremely nitrogen-deprived soil," said study coauthor Richard Ferrieri, director of Brookhaven Lab's Radiochemistry and Biological Imaging Program. "We plan to apply this method to other crop systems, including bioenergy grasses like sorghum, switchgrass, and miscanthus, and even to food crops like corn and wheat."
ROCKMAN wrote:Given that about 80% of the life sustaining air we breath is N2 I wonder what the effect would be in a high density ag area that switched to sucking it out of the atmosphere. Globally probably insignificant. But if you were a field laborer in the San Joaquin Valley? Oxygen enriched air? Heck...it might be a better high the Mary Jane. LOL.
ROCKMAN wrote:"We could easily switch back to using electricity when the price of oil or natural gas gets too high.". So hydroelectricty, of which there is no excess today because 100% of the capacity is being delivered to consumers, would be redirected to fertilizer production. And the folks currently using that e- would accept the degradation of their lifestyle? Or would new fossil fuel or nuke plants be constructed to satisfy their needs? Or maybe a law would be passed to require all fert. plants be powered by wind or solar?
Bottom line: all the available energy in the world is currently being consumed for the most. Redirecting any off it to any other process will require expanding the current power generating infrastructure. Which brings us back full circle to the basic problem: the requirement of a huge amount of capex to create any viable form of transition.
pstarr wrote:While the Haber process has been very effective in feeding the world's population it is not the only way, and certainly not the best way. Haber is also the foundation for the so-called "green revolution" that is now butting heads with climate change and drought. Organic agriculture while less EFFICIENT is still quite suitable for FEEDING PEOPLE. Perhaps not in the fashion they are accustommed to.
It will cost more to feed people organically but that is just fine. There will be lots of excess tractor/transport fuel around when the consumer economy crashes. Here is something to truly worry about: PEAK PHOSPHORUS.
ChilPhil1986 wrote:Here's one example: Chestnut trees next to apple trees next to hazelnut bushes or a no-till rotational crop, next to vegetable patches. All should be packed in close, with tall pasture grass interspersed throughout for any grazing animals.
Strummer wrote:ChilPhil1986 wrote:Here's one example: Chestnut trees next to apple trees next to hazelnut bushes or a no-till rotational crop, next to vegetable patches. All should be packed in close, with tall pasture grass interspersed throughout for any grazing animals.
Great example. Now tell me, can it be implemented in all of the climates, soil types and geographic locations as the current agriculture, at the same scale, feeding the same amount of people? No, it can't. Most of these "examples" are extremely location-specific.
ChilPhil1986 wrote:Off-topic: I refuse to accept that organic is an inherently less efficient method for growing food than conventional means. If people could change their diets off these silly neo-lithic diets to foods that could more readily be grown in a multilayered context, we could actually design agriculture that makes sense. Here's one example: Chestnut trees next to apple trees next to hazelnut bushes or a no-till rotational crop, next to vegetable patches.
Users browsing this forum: No registered users and 32 guests