Abstract
Abstract Relatively high levels of micronutrients are applied to some soils as fertilizers, fungicides, or waste products. Experimental data are needed to determine whether these micronutrient applications cause yield decreases or accumulations of micronutrients in edible plant portions. In this research, field investigations were conducted on Davidson clay loam and Marlboro fine sandy loam to determine tolerable levels of B, Cu, and Zn applications for soybeans [ Glycine max (L.) Merr.]. Various levels of the micronutrients were applied to the two soils annually for 5 years preceding this investigation and for a sixth year prior to growing the soybeans under study. Neither soybean plant growth nor seed yield was decreased where as high as 3.3 kg B, 8.4 kg Cu, and 11.1 kg Zn/ha were applied to the soils annually for 6 years. This relatively high tolerance of soybeans to B, Cu, and Zn applications was attributed partly to a decreased untake of the micronutrients at the near‐neutral levels of pH in the soils. Evidence was presented indicating that the six annual applications of B, Cu, and Zn did not increase the concentrations of the micronutrients in soybean seed to levels that would preclude their use as animal feed.
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Claims 5
Claim · model-written summary
Six annual applications of boron up to 3.3 kg per hectare did not decrease soybean growth or seed yield.
- Taxon
- soybean
Glycine maxe0 - Treatment
- 3.3 kg Be0
- Outcome
- soybean plant growth nor seed yielde0
- Direction
- Neithere0
- Value
- 3.3 kg Be0
- Qualifier
- annually for 6 yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither soybean plant growth nor seed yield was decreased where as high as 3.3 kg B, 8.4 kg Cu, and 11.1 kg Zn/ha were applied to the soils annually for 6 years”
Claim · model-written summary
Six annual applications of copper up to 8.4 kg per hectare did not decrease soybean growth or seed yield.
- Taxon
- soybeanGlycine maxe0
- Treatment
- 8.4 kg Cue0
- Outcome
- soybean plant growth nor seed yielde0
- Direction
- Neithere0
- Value
- 8.4 kg Cue0
- Qualifier
- annually for 6 yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither soybean plant growth nor seed yield was decreased where as high as 3.3 kg B, 8.4 kg Cu, and 11.1 kg Zn/ha were applied to the soils annually for 6 years”
Claim · model-written summary
Six annual applications of zinc up to 11.1 kg per hectare did not decrease soybean growth or seed yield.
- Taxon
- soybeanGlycine maxe0
- Treatment
- 11.1 kg Zn/hae0
- Outcome
- soybean plant growth nor seed yielde0
- Direction
- Neithere0
- Value
- 11.1 kg Zn/hae0
- Qualifier
- annually for 6 yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither soybean plant growth nor seed yield was decreased where as high as 3.3 kg B, 8.4 kg Cu, and 11.1 kg Zn/ha were applied to the soils annually for 6 years”
Claim · model-written summary
The authors partly attributed soybean tolerance to reduced micronutrient uptake at near-neutral soil pH.
- Taxon
- soybeansGlycine maxe0
- Treatment
- B, Cu, and Zn applicationse0
- Outcome
- relatively high tolerancee0
- Qualifier
- decreased untake of the micronutrients at the near‐neutral levels of pH in the soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This relatively high tolerance of soybeans to B, Cu, and Zn applications was attributed partly to a decreased untake of the micronutrients at the near‐neutral levels of pH in the soils”
Claim · model-written summary
Six annual B, Cu and Zn applications did not raise soybean seed micronutrient concentrations to levels that preclude animal feed use.
- Taxon
- soybeanGlycine maxe0
- Treatment
- six annual applications of B, Cu, and Zne0
- Outcome
- concentrations of the micronutrients in soybean seede0
- Direction
- did not increasee0
- Qualifier
- levels that would preclude their use as animal feede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the six annual applications of B, Cu, and Zn did not increase the concentrations of the micronutrients in soybean seed to levels that would preclude their use as animal feed”
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