Abstract
Increasing the recovery of N fertilizer (RNf) is the main challenge in managing nitrogen fertilization in sugarcane. This study aimed to evaluate the efficiency of complementary foliar fertilization in managing nitrogen nutrition in sugarcane. Four fertilization managements, combining soil (5.0 and 4.5 g plot−1 of N) and foliar (1.0 and 1.5 g plot−1 of N) fertilization in up to two application events (0.5 + 0.5 and 0.75 + 0.75 g plot−1 of N), were compared with conventional fertilization (6.0 g plot−1 of N in soil). The change from 6.0 g plot−1 to 4.5 g plot−1 of N reduced the RNf by 46% before the first foliar fertilization. The RNf (26%) was similar between managements after the first foliar fertilization. After the second foliar fertilization, the RNf was 38% higher than that for conventional management. The accumulation of N in the aerial part of sugarcane was similar between managements until the first foliar fertilization. After the second foliar fertilization, the accumulation of N increased by 3.5% with foliar fertilization. The biomass accumulated by the managements was similar before and after the first and second foliar fertilization. The splitting of foliar fertilization increased the accumulation of N and RNf by 22% and 24%, respectively. The fertilization management with 4.5 g plot−1 of N applied to the soil, with two applications of 0.75 g plot−1 of N on the leaf, obtained greater accumulations of N and RNf. Foliar fertilization increases the efficiency of fertilization and improves the N nutrition of sugarcane.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Reducing soil N from 6.0 to 4.5 g per plot lowered fertilizer N recovery by 46% before foliar fertilization.
Verbatim
e0“The change from 6.0 g plot−1 to 4.5 g plot−1 of N reduced the RNf by 46% before the first foliar fertilization”
e1“nitrogen nutrition in sugarcane.”
Claim · model-written summary
Fertilizer N recovery was similar across managements after the first foliar application, at 26%.
Verbatim
e0“The RNf (26%) was similar between managements after the first foliar fertilization”
e1“nitrogen nutrition in sugarcane.”
Claim · model-written summary
After the second foliar application, fertilizer N recovery was 38% higher than conventional management.
Verbatim
e0“After the second foliar fertilization, the RNf was 38% higher than that for conventional management”
e1“nitrogen nutrition in sugarcane.”
Claim · model-written summary
Sugarcane aerial-part N accumulation was similar across managements until the first foliar application.
Verbatim
e0“The accumulation of N in the aerial part of sugarcane was similar between managements until the first foliar fertilization”
Claim · model-written summary
After the second foliar application, sugarcane N accumulation increased 3.5% with foliar fertilization.
- Taxon
- sugarcanee1
- Treatment
- foliar fertilizatione0
- Outcome
- accumulation of Ne0
- Direction
- increasede0
- Value
- 3.5%e0
Not reportedComparator
Verbatim
e0“After the second foliar fertilization, the accumulation of N increased by 3.5% with foliar fertilization”
e1“nitrogen nutrition in sugarcane.”
Claim · model-written summary
Biomass accumulation was similar across fertilization schedules at all reported time points.
Verbatim
e0“The biomass accumulated by the managements was similar before and after the first and second foliar fertilization”
e1“nitrogen nutrition in sugarcane.”
Claim · model-written summary
Splitting foliar fertilization increased N accumulation by 22%.
- Taxon
- sugarcanee1
- Treatment
- splitting of foliar fertilizatione0
- Outcome
- accumulation of Ne0
- Direction
- increasede0
- Value
- 22%e0
Not reportedComparator
Verbatim
e0“The splitting of foliar fertilization increased the accumulation of N and RNf by 22% and 24%, respectively”
e1“nitrogen nutrition in sugarcane.”
Claim · model-written summary
Splitting foliar fertilization increased fertilizer N recovery by 24%.
- Taxon
- sugarcanee1
- Treatment
- splitting of foliar fertilizatione0
- Outcome
- RNfe0
- Direction
- increasede0
- Value
- 24%e0
Not reportedComparator
Verbatim
e0“The splitting of foliar fertilization increased the accumulation of N and RNf by 22% and 24%, respectively”
e1“nitrogen nutrition in sugarcane.”
Claim · model-written summary
Soil N at 4.5 g per plot plus two 0.75-g foliar applications gave the greatest N accumulation and recovery.
Verbatim
e0“The fertilization management with 4.5 g plot−1 of N applied to the soil, with two applications of 0.75 g plot−1 of N on the leaf, obtained greater accumulations of N and RNf”
e1“nitrogen nutrition in sugarcane.”
The same questions in other papers
fertilization · molecular: metabolites · Saccharum officinarum (sugarcane)Positive and negative results
24 papers in the same direction as this paper · 8 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
30 papers more in this group
See all 34 papers →application · molecular: metabolites · Saccharum officinarum (sugarcane)Results agree
12 papers in the same direction as this paper
- positive
- positive
- positive
9 papers more in this group
See all 13 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.