Roberto pokachinni wrote:Since your Nitrogen is none existent, I would go to your local garden or farm store or order some N fixing root inoculant, and plant some nitrogen-fixing pioneer species. Depending on your plans for the site, these would be annuals or perennials. Put compost around them and give them lots of water. I've read that gypsum can help to deal with salts in soil. I did a quick google to find that. Also came up with This PDF Document from the USDA about salt-affected areas.
I'm not very familiar with these tests, so I might have made an error there. I based my assumption on the facts that the other substances which are deemed most essential for plant growth were given a rating such as high (K potassium), very high (P phosphorus), et cetera, and N nitrogen was blank, and also on the fact that generally these are mixed at ratios in NPK grow mixes, like 20:20:20. While Potassium has 899, and Phosphorus has 353, Nitrogen has only 34. My apologies, if my assumptions led anyone astray. I'm still not sure what a healthy balance would be in this case.
I was under them impression that 34 mg/kg is a moderate level of nitrogen, which would also explain why there is no recommendation for a nitrogen addition on the right of the table.
What type/s of manure? I've heard that some manure (I think steer in particular was mentioned, but don't quote me as it's not one I have access to, so I didn't pay too much attention) is higher in salt than others.
I added a fair amount of manure also.
This might not be the right video where he talks about the salinity. I'm watching it right now to find out.
This wasn't the video I thought. However, he does mention the reduction of alkalinity due to the increase in biomass/fertility around 35minutes to 37minutes. healthy citrus being the indicator species that this was successful. I know your PH looks only slightly alkaline, but these organic matter additions might be part of the solution. I'll find the other video and post it to follow.
I That might be the answer here, Joseph.
I suspect that the potassium in the compost is almost solely responsible for the salinity.
I think it might be a combination of the high potassium and the water of that region.
Has your water been tested? I’d consider that as a possible salt source. Even trace salts from irrigation water can accumulate to problematic levels.