Abstract
Current sugarcane nitrogen (N) rate recommendations are based of crop age and soil type. Fertilization is typically done up to two months prior to rapid N uptake by sugarcane crop. This study was established to evaluate the effect of N rate and application timing on sugarcane yield and quality. Treatments included four different N rates (0, 45, 90, and 135 kg N ha−1) and four different application times (mid-April, late-April, mid-May, and late-May) arranged in a split-plot design with application time as the main plot and N rate as the sub-plot. Two of three site-years showed a significant positive effect of N rate on sugarcane yield. Further, the critical N rates range from 40 to 60 kg N ha−1 for responsive years, which is lower than current N rate recommendations. Results indicated that N fertilization could be delayed to later in the growing season in 5 of 6 s
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Claims 4
Claim · model-written summary
Higher nitrogen rates significantly increased sugarcane yield in two of three site years.
- Taxon
- sugarcanee0
- Treatment
- N ratee0
- Outcome
- sugarcane yielde0
- Direction
- positivee0
- Qualifier
- Two of three site-yearse0
Not reportedComparator
Verbatim
e0“Two of three site-years showed a significant positive effect of N rate on sugarcane yield.”
Claim · model-written summary
Critical nitrogen rates were 40 to 60 kg N ha−1 in responsive years.
Verbatim
e0“critical N rates range from 40 to 60 kg N ha−1 for responsive years”
t0“Sugarcane”
Claim · model-written summary
Critical nitrogen rates were lower than current recommendations.
Verbatim
e0“which is lower than current N rate recommendations”
e1“critical N rates range from 40 to 60 kg N ha−1 for responsive years”
t0“Sugarcane”
Claim · model-written summary
Nitrogen fertilization could be delayed later in the sugarcane growing season in five of six cases.
Verbatim
e0“N fertilization could be delayed to later in the growing season in 5 of 6 s”
t0“Sugarcane”
The same questions in other papers
nitrogen · yield · Saccharum officinarum (sugarcane)Results differ
117 papers in the same direction as this paper · 15 in the opposite direction · 4 reporting no difference from an alternative
- positive
- no effect
- negative
133 papers more in this group
See all 137 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.