Abstract
The increase of N fertilization in sugarcane can negatively influence the technological quality of the crop for sugar and alcohol production.The use of Mo in fertilization combined with N can reduce this effect and increase agricultural and sugar yield.The objective of this study was to evaluate the levels of Mo in soil, roots and leaves of sugarcane fertilized with N and Mo, to measure agricultural and sugar productivity and to evaluate quality of the technological attributes for production of sugar and alcohol.Two varieties were cultivated (RB867515 and RB92579) under field conditions, submitted to two doses of N (0 and 60 kg ha -1 ) and two doses of Mo (0 and 200 g ha -1 ) both applied to the soil.The source of N used was urea and the source of Mo was sodium molybdate.RB867515 was influenced by Mo and agricultural and sugar productivity increased by 21%.N fertilization did not increase agricultural productivity but reduced the technological quality of sugarcane, and Mo did not change this reduction.It is suggested that N fertilization should be reduced in first crop cycle and Mo fertilization should be stimulated.
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Claims 6
Claim · model-written summary
Molybdenum increased agricultural and sugar productivity of RB867515 by 21%.
- Taxon
- sugarcanet0
- Material
- RB867515e0
- Treatment
- Moe0
- Outcome
- agricultural and sugar productivitye0
- Direction
- increasede0
- Value
- 21%e0
Not reportedComparator
Verbatim
t0“sugarcane”
e0“RB867515 was influenced by Mo and agricultural and sugar productivity increased by 21%”
Claim · model-written summary
Nitrogen fertilization did not increase sugarcane agricultural productivity.
- Taxon
- sugarcanet0
- Treatment
- N fertilizatione0
- Outcome
- agricultural productivitye0
- Direction
- did not increasee0
Not reportedComparator
Verbatim
t0“sugarcane”
e0“N fertilization did not increase agricultural productivity”
Claim · model-written summary
Nitrogen fertilization reduced sugarcane technological quality.
- Taxon
- sugarcanet0
- Treatment
- N fertilizatione0
- Outcome
- technological quality of sugarcanee0
- Direction
- reducede0
Not reportedComparator
Verbatim
t0“sugarcane”
e0“N fertilization did not increase agricultural productivity but reduced the technological quality of sugarcane”
Claim · model-written summary
Molybdenum did not change the nitrogen-related reduction in sugarcane technological quality.
Not reportedComparator
Verbatim
t0“sugarcane”
e0“Mo did not change this reduction”
e1“reduced the technological quality of sugarcane”
Claim · model-written summary
The authors suggest reducing nitrogen fertilization in the first sugarcane crop cycle.
Verbatim
t0“sugarcane”
e0“It is suggested that N fertilization should be reduced in first crop cycle”
Claim · model-written summary
The authors suggest stimulating molybdenum fertilization.
Verbatim
t0“sugarcane”
e0“Mo fertilization should be stimulated”
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