Soybean Nutrition in a Novel Single-Nutrient Source Hydroponic Solution
Hydroponic systems are efficient for studying plant nutrition. It is often desirable to adjust individual nutrients for unique species’ needs and/or to create multiple nutrient deficiencies within the same study. However, this is challenging to do with traditional solutions as nutrients are generall...
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MDPI AG
2021-03-01
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Series: | Agronomy |
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Online Access: | https://www.mdpi.com/2073-4395/11/3/523 |
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author | David L. Cole Savannah J. Kobza Savannah R. Fahning Samuel H. Stapley Dicken K. A. Bonsrah Rachel L. Buck Bryan G. Hopkins |
author_facet | David L. Cole Savannah J. Kobza Savannah R. Fahning Samuel H. Stapley Dicken K. A. Bonsrah Rachel L. Buck Bryan G. Hopkins |
author_sort | David L. Cole |
collection | DOAJ |
description | Hydroponic systems are efficient for studying plant nutrition. It is often desirable to adjust individual nutrients for unique species’ needs and/or to create multiple nutrient deficiencies within the same study. However, this is challenging to do with traditional solutions as nutrients are generally added as dual nutrient salts, such as when varying phosphorus (P) concentration also affects nitrogen concentration; potentially, the chemical form of the nutrient taken up when ammonium phosphate is the source for P. This can create unintended consequences with nutrients other than those intended for adjustment. A new hydroponic system has been created to allow for nutrient deficiencies using single-nutrient sources, including ammonium nitrate; phosphoric, sulfuric, hydrochloric, and boric acids; potassium, calcium, magnesium, zinc, and copper carbonates; manganese acetate; sodium molybdate; iron EDDHA; with HEDTA as an additional chelate. This nutrient solution was compared to a traditional “Hoagland” hydroponic solution to grow soybean (<i>Glycine max</i> (L.) Merr). Additional treatments included alteration of pH in the new solution as well as evaluating varying levels of calcium, magnesium, and manganese. This new solution proved effective, as soybean was grown to maturity and performed as well as the traditional Hoagland solution. Adjusting pH downward with hydrochloric acid resulted in healthy plants, but solution pH was not adequately buffered. Adjusting pH with acetic acid resulted in toxicity. Further work is required to provide better pH buffering and approximately align tissue nutrient concentrations with field-grown soybean. |
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issn | 2073-4395 |
language | English |
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publishDate | 2021-03-01 |
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series | Agronomy |
spelling | doaj.art-fff43d8abf0e4ded8f73505d2d3b0ab52023-11-21T10:03:48ZengMDPI AGAgronomy2073-43952021-03-0111352310.3390/agronomy11030523Soybean Nutrition in a Novel Single-Nutrient Source Hydroponic SolutionDavid L. Cole0Savannah J. Kobza1Savannah R. Fahning2Samuel H. Stapley3Dicken K. A. Bonsrah4Rachel L. Buck5Bryan G. Hopkins6Chemical and Biological Engineering Department, University of Wisconsin-Madison, Madison, WI 53706, USAPlant and Wildlife Sciences Department, Brigham Young University, Provo, UT 84602, USAPlant and Wildlife Sciences Department, Brigham Young University, Provo, UT 84602, USAPlant and Wildlife Sciences Department, Brigham Young University, Provo, UT 84602, USAPlant and Wildlife Sciences Department, Brigham Young University, Provo, UT 84602, USAPlant and Wildlife Sciences Department, Brigham Young University, Provo, UT 84602, USAPlant and Wildlife Sciences Department, Brigham Young University, Provo, UT 84602, USAHydroponic systems are efficient for studying plant nutrition. It is often desirable to adjust individual nutrients for unique species’ needs and/or to create multiple nutrient deficiencies within the same study. However, this is challenging to do with traditional solutions as nutrients are generally added as dual nutrient salts, such as when varying phosphorus (P) concentration also affects nitrogen concentration; potentially, the chemical form of the nutrient taken up when ammonium phosphate is the source for P. This can create unintended consequences with nutrients other than those intended for adjustment. A new hydroponic system has been created to allow for nutrient deficiencies using single-nutrient sources, including ammonium nitrate; phosphoric, sulfuric, hydrochloric, and boric acids; potassium, calcium, magnesium, zinc, and copper carbonates; manganese acetate; sodium molybdate; iron EDDHA; with HEDTA as an additional chelate. This nutrient solution was compared to a traditional “Hoagland” hydroponic solution to grow soybean (<i>Glycine max</i> (L.) Merr). Additional treatments included alteration of pH in the new solution as well as evaluating varying levels of calcium, magnesium, and manganese. This new solution proved effective, as soybean was grown to maturity and performed as well as the traditional Hoagland solution. Adjusting pH downward with hydrochloric acid resulted in healthy plants, but solution pH was not adequately buffered. Adjusting pH with acetic acid resulted in toxicity. Further work is required to provide better pH buffering and approximately align tissue nutrient concentrations with field-grown soybean.https://www.mdpi.com/2073-4395/11/3/523<i>Glycine max</i>soybeannutrient uptakehydroponiccalciummagnesium |
spellingShingle | David L. Cole Savannah J. Kobza Savannah R. Fahning Samuel H. Stapley Dicken K. A. Bonsrah Rachel L. Buck Bryan G. Hopkins Soybean Nutrition in a Novel Single-Nutrient Source Hydroponic Solution Agronomy <i>Glycine max</i> soybean nutrient uptake hydroponic calcium magnesium |
title | Soybean Nutrition in a Novel Single-Nutrient Source Hydroponic Solution |
title_full | Soybean Nutrition in a Novel Single-Nutrient Source Hydroponic Solution |
title_fullStr | Soybean Nutrition in a Novel Single-Nutrient Source Hydroponic Solution |
title_full_unstemmed | Soybean Nutrition in a Novel Single-Nutrient Source Hydroponic Solution |
title_short | Soybean Nutrition in a Novel Single-Nutrient Source Hydroponic Solution |
title_sort | soybean nutrition in a novel single nutrient source hydroponic solution |
topic | <i>Glycine max</i> soybean nutrient uptake hydroponic calcium magnesium |
url | https://www.mdpi.com/2073-4395/11/3/523 |
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