Nutrition Farming for Hawaii Demonstration Garden–Early Results

Here are nutrient comparisons of Nutrition Grown™ crops to USDA values in the current official food nutrient database.  Note that these are the first results from the newly amended garden, before microbial inoculants and foliar nutrient sprays were used.

The crop land used for this project had been in sugarcane for many decades.  (Old sugarcane land is typically nutrient depleted.)  Since sugar production ceased about 40 years ago, the land has been used for cattle grazing.

Balancing soil nutrients takes time, but is accomplished by repeated soil testing and addition of needed nutrients over time. A time frame of three to five years is typically needed to obtain optimal production.  Produce nutrient content and quality (i.e. flavor, texture) is expected to improve in parallel with soil quality.  In addition, decreases in plant pests and diseases, and increases in crop yields are also expected.

The charts below shows first season crops, grown shortly after most of the recommended nutrients were applied.  Even though early in the project, the Nutrition Grown™ crops show higher levels of most of the examined nutrients as compared to USDA values.  Lower values were seen for phosphorus and sodium, nutrients which are typically well supplied (not deficient) in average diets.  Nutrients such as calcium and zinc are often deficient in humans.  These elements were higher in the Nutrition Grown™ crops.  The USDA value for copper in kale appears to be an anomaly, as the Recommended Daily Intake (RDI) of copper for adults is only 0.9 mg.

USDA Comparison to Nutrition Grown™
 Arugula, young, 3-6″
Nutrition Farming Project—May 2017
(Before foliar nutrient sprays & microbial inoculants were added)
Nutrient USDA Values   Nutrition Grown™   Difference   Difference
   A   B   B-A   %
Protein g/100g 2.5 3.24 0.74 30
Following in mg/100g:
Calcium Ca 165 199 34 21
Iron Fe 1.51 1.81 0.30 20
Magnesium Mg 47 74 27 58
Phosphorus P 52 18 -34 -66
Potassium K 369 498 129 35
Sodium Na 23 14 -9 -41
Zinc Zn 0.47 3.10 2.63 560
Copper Cu 0.076 0.200 0.124 163
Manganese Mn 0.321 0.767 0.446 139

 

USDA Comparison to Nutrition Grown™
 Kale, Toscano, 6-12″ leaves
Nutrition Farming Project—May 2017
(Before foliar nutrient sprays & microbial inoculants were added)
Nutrient USDA Values   Nutrition Grown™   Difference   Difference
  A   B   B-A   %
Protein g/100g 4.28 4.38 0.10 2
Following in mg/100g:
Calcium Ca 150 239 89 59
Iron Fe 1.47 1.15 -0.32 -22
Magnesium Mg 47 80 33 70
Phosphorus P 92 47 -45 -49
Potassium K 491 625 134 27
Sodium Na 38 21 -17 -44
Zinc Zn 0.56 0.96 0.40 71
Copper Cu 1.499 0.058 -1.441 -96
Manganese Mn 0.659 0.989 0.330 50

 

USDA Comparison to Nutrition Grown™
Collards, average 6.5″ leaf pads
From Nutrition Farming Project—May 2017
(Before foliar & microbes)
Nutrient USDA Values   Nutrition Grown™   Difference   Difference
  A   B   B-A   %
Protein g/100g 3.02 3.27 0.25 8
Following in mg/100g:
Calcium Ca 232 306 74 32
Iron Fe 0.47 1.44 0.97 206
Magnesium Mg 27 84 57 210
Phosphorus P 25 23 -3 -10
Potassium K 213 530 317 149
Sodium Na 17 16 -1 -6
Zinc Zn 0.21 1.25 1.04 495
Copper Cu 0.046 0.050 0.004 9
Manganese Mn 0.658 1.175 0.517 79

If you like this post, please comment (comment settings were recently updated) and share.  Thanks,  Dr. Jana

6 replies
    • Dr. Jana Bogs says:

      Hi Tacey, Soils take a while to come into balance. This soil was only recently amended. We can add only limited amounts of various amendments at one time. As I stated, the microbial inoculant had not been added. The microbes are very important for nutrient uptake.
      Stay tuned for more results later as the soil improves over time.

      Reply
  1. Jennifer Wilson says:

    I have a general question… The greens grown in amended soil had lower sodium levels and it made me wonder if there are nutrients that we do want lower in our vegetables?

    Reply
    • Dr. Jana Bogs says:

      Hi Jennifer, Good question, and similar to Allan’s question. We want the correct balance for plant health and people’s health. So, yes, sometimes we need to decrease some elements in the soil and in the plants in comparison to other elements. It’s all about balance for the health of soil, plants and humans/animals.

      Reply
  2. Allan King says:

    Very good results. The drop in phosphorus and sodium is a good thing, yeah? Isnt this is a correction from the fertilizers used for growing sugar. I think phosphorus is persistent in the soil and when there’s too much it’s difficult to get rid of. And I would think that if your garden is on the windward side or close to the ocean there could be more sodium in the soil from the sea breeze.
    Love your work, you’re doing cutting edge research.
    Aloha
    Allan

    Reply
    • Dr. Jana Bogs says:

      Hi Allan, Most people get plenty of phosphorus and sodium, so having less of those and more of elements like calcium and zinc that we often lack seems good. With Beyond Organic soil balancing, I see a consistent rise in edible plant tissue of beneficial elements which are deficient in many people.

      Reply

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