Abstract
Inadequate nutrient supply frequently limits biological nitrogen fixation (BNF), plant growth and grain yield of legumes. Under no-till conditions, root growth may be restrained and therefore reduce nutrient uptake. Our studies were carried out to assess the nutrient status of Vicia faba L. (particularly at the onset of bloom) in Germany by using newly created DRIS (Diagnosis and Recommendation Integrated System) norm values, Critical Nutrient Levels (CNL), and the optimum nutrient range. In a field experiment in 2010 at 4 sites (Klein-Altendorf, Wiesengut & 2 organic farms) the applied fertilizers were fermentation residues, compost, pomace, meat-bone-meal, rock-phosphate, sodium-molybdate, potassium sulphate, and borax. Nutrient elements measured in leaf samples were: C, N, S, K, Ca, P, Mg, Fe, Mn, Zn, Cu, B and Mo. As S was detected to be deficient, K2SO4 (35 kg S/ha) had a significantly positive effect on plant growth, yield and symbiosis.
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Claims 4
Claim · model-written summary
Sulfur was deficient in Vicia faba.
- Taxon
- Vicia faba L.
Vicia fabae1 - Outcome
- S was detected to be deficiente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“As S was detected to be deficient”
e1“Vicia faba L.”
Claim · model-written summary
K2SO4 significantly improved plant growth.
- Taxon
- Vicia faba L.
Vicia fabae1 - Treatment
- K2SO4 (35 kg S/ha)e0
- Outcome
- plant growthe0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“K2SO4 (35 kg S/ha) had a significantly positive effect on plant growth, yield and symbiosis”
e1“Vicia faba L.”
Claim · model-written summary
K2SO4 significantly improved yield.
- Taxon
- Vicia faba L.
Vicia fabae1 - Treatment
- K2SO4 (35 kg S/ha)e0
- Outcome
- yielde0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“K2SO4 (35 kg S/ha) had a significantly positive effect on plant growth, yield and symbiosis”
e1“Vicia faba L.”
Claim · model-written summary
K2SO4 significantly improved symbiosis.
- Taxon
- Vicia faba L.
Vicia fabae1 - Treatment
- K2SO4 (35 kg S/ha)e0
- Outcome
- symbiosise0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“K2SO4 (35 kg S/ha) had a significantly positive effect on plant growth, yield and symbiosis”
e1“Vicia faba L.”
The same questions in other papers
potassium sulfate · yield · Vicia faba (faba bean)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- no effect
- positive
2 papers more in this group
See all 6 papers →potassium sulfate · growth · Vicia faba (faba bean)Results agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.