Wow, thanks for the information!
I guess the advice is not contradictory just different. Some advise that I add trace minerals other do not. The garden is about 1.5 acres and we plan to cover crop at least a half of an acre.
Do you have any advice for compost teas? I had been making a tea out of worm castings and molasses but was think of buying the complete liquid feed from Nutrient Density supply (
http://www.ndsupply.com/Nutrient_Density_Supply_Co./NDSC.html) and perhaps some efficient microorganisms. However, if I could make something as beneficial myself I would prefer that.
Recommendation #1:
Your soils have some issues, especially with trace mineral deficiencies (B, ZN, Cu, Mn). Sulfur is also less than ideal (50 #/acre) Organic matter levels should be over 5% to have little to no need of added nitrogen. Higher than ideal magnesium (>12%) can suppress calcium uptake, while raising pH to over 7, which inhibits trace mineral uptake. Hope this is of help.
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RECOMMENDATION #2:
He remarked that your macronutrients looked sufficient. He did recommend the following for micronutrients/ trace minerals:
20 lbs/acre of Manganese Sulfate
15 lbs/acre of Boron
10 lbs/ acre of copper sulfate
10 lbs/ acre of zinc sulfate
500 lbs/acre Gypsum (for low sulfur levels)
He also recommended two others although the they were not included in the test (many gardens are deficient):
4 lbs/acre of Cobalt sulfate
1 lb/ acre of sodium molybdate
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RECOMMENDATION #3
He recommended adding Phosphate to help with the potassium vs. phosphorus ratio as the potassium levels are quite high. The high amount of potassium could be causing weed pressure.
There is an abundance of magnesium in the soil to which he also recommended adding (elemental) sulphur. However, he thought Dan's Gypsum recommendation was far too high as adding large amounts of sulphur can hurt the microbial population (also adds calcium which the garden has plenty).
Instead, he suggested fixing the sulfates first and then deal with the sulphur.
he did not provide specifics as he was not familiar with the type of test I presented:
Boron
Zinc
Manganese
Iron
Copper
Phosphate
Mineral Salts (Redmond's)
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RECOMMENDATION #4
He was most concerned with the high potassium levels, but he thought they could be watched over time. He thought the best way to deal with them would be to not add as much raw manure and instead use aged manure or compost.
He suggested Phosphorus application for #3 & # 4 in the fall. And some gypsum in the fall to #1 & #2, about 100lbs/acre.
He mostly said to apply Lancaster Ag's Seed Grow and Top Dress this spring as well as root dips for transplants and inoculates for seeds.
He didn't really suggest any individual mineral applications.
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