Abstract
Two field experiments were carried out to evaluate influence of cobalt under different levels of nitro gen on nodules efficiency, growth and yield, minerals composition and chemical characteristics of Soybean plants. The experiments were conducted at Research and Production Station, National Research Centre, El-Nobaria Beheara Governorate, Delta- Egypt, under drip irrigation system during 2 011 and 2012 seasons. The obtained results are summarized in the following: Cobalt significantly increased nitrogenase activity which was parallel and related to the increased no dules numbers, weights and its efficiency especially with both 100 and 75% nitrogen fertilizer. Cobalt gave the highest figures of all growth and y ield parameters of Soybean with 100% N followed by 75% N compared with the untreated plants. Growth and yield parameters of Soybean treated with cobalt and 50% N was not significant while cobalt with 25% N gave the lowest figures. Cobalt increased the efficiency of nitrogen fertili zation, amendment reduce the recommended dose of about by 25% and resulted in superior seeds and oil yields by ab out 20.8% and 17. 4 respectively, with75% N, compared with 100 N without cobalt. Cobalt significantly increased the content of N, P, K, Mn and Zn as well as chemical contents especial ly with 100% and 75% nitrogen levels. Finally, the addition of Cobalt to the soil, save 7 5% nitrogen and could be reduced.
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Claims 9
Claim · model-written summary
Cobalt increased nitrogenase activity, especially with 100 and 75% nitrogen fertilizer.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- Cobalte0
- Outcome
- nitrogenase activitye0
- Direction
- increasede0
- Qualifier
- 100 and 75% nitrogen fertilizere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cobalt significantly increased nitrogenase activity which was parallel and related to the increased no dules numbers, weights and its efficiency especially with both 100 and 75% nitrogen fertilizer.”
t0“Soybean”
Claim · model-written summary
Cobalt increased nodule number, weight and efficiency, especially at 100 and 75% nitrogen.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Cobalte0
- Outcome
- no dules numbers, weights and its efficiencye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cobalt significantly increased nitrogenase activity which was parallel and related to the increased no dules numbers, weights and its efficiency especially with both 100 and 75% nitrogen fertilizer.”
t0“Soybean”
Claim · model-written summary
Cobalt with 100% N gave the highest soybean growth and yield parameters.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- Cobalte0
- Outcome
- growth and y ield parameterse0
- Direction
- higheste0
- Qualifier
- 100% Ne0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cobalt gave the highest figures of all growth and y ield parameters of Soybean with 100% N followed by 75% N compared with the untreated plants.”
Claim · model-written summary
Cobalt with 75% N ranked after 100% N for soybean growth and yield.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- Cobalte0
- Outcome
- growth and y ield parameterse0
- Direction
- higheste0
- Qualifier
- 75% Ne0
- Comparator
- untreated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cobalt gave the highest figures of all growth and y ield parameters of Soybean with 100% N followed by 75% N compared with the untreated plants.”
Claim · model-written summary
Soybean growth and yield parameters with cobalt and 50% N were not significant.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- cobalt and 50% Ne0
- Outcome
- Growth and yield parameterse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth and yield parameters of Soybean treated with cobalt and 50% N was not significant while cobalt with 25% N gave the lowest figures.”
Claim · model-written summary
Cobalt with 25% N gave the lowest soybean growth and yield figures.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- cobalt with 25% Ne0
- Outcome
- Growth and yield parameterse0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth and yield parameters of Soybean treated with cobalt and 50% N was not significant while cobalt with 25% N gave the lowest figures.”
Claim · model-written summary
Cobalt with 75% N increased seed yield by about 20.8% against 100 N without cobalt.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Cobalte0
- Outcome
- seedse0
- Direction
- superiore0
- Value
- 20.8%e0
- Qualifier
- with75% Ne0
- Comparator
- 100 N without cobalte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cobalt increased the efficiency of nitrogen fertili zation, amendment reduce the recommended dose of about by 25% and resulted in superior seeds and oil yields by ab out 20.8% and 17. 4 respectively, with75% N, compared with 100 N without cobalt.”
t0“Soybean”
Claim · model-written summary
Cobalt with 75% N increased oil yield by about 17.4 against 100 N without cobalt.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Cobalte0
- Outcome
- oil yieldse0
- Direction
- superiore0
- Value
- 17. 4e0
- Qualifier
- with75% Ne0
- Comparator
- 100 N without cobalte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cobalt increased the efficiency of nitrogen fertili zation, amendment reduce the recommended dose of about by 25% and resulted in superior seeds and oil yields by ab out 20.8% and 17. 4 respectively, with75% N, compared with 100 N without cobalt.”
t0“Soybean”
Claim · model-written summary
Cobalt significantly increased soybean N, P, K, Mn and Zn content especially at 100% and 75% nitrogen.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Cobalte0
- Outcome
- content of N, P, K, Mn and Zne0
- Direction
- increasede0
- Qualifier
- 100% and 75% nitrogen levelse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cobalt significantly increased the content of N, P, K, Mn and Zn as well as chemical contents especial ly with 100% and 75% nitrogen levels.”
t0“Soybean”
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See all 14 papers →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.