Abstract
Sugarcane requires high doses of phosphorus to achieve high productivity. However, not all the phosphorus applied to crops is utilized. Therefore, it is believed that some remaining phosphorus can meet the nutrient demand of the ratoon crop. The objective of this study was to evaluate the effects of mineral fertilization with triple superphosphate (TSP) and organic fertilization with poultry litter (PL), applied to plant cane and the first ratoon, on the quality of second ratoon sugarcane. The experimental design was a randomized complete block design with a 5 × 5 factorial scheme with four replications. The treatments consisted of five TSP doses (0, 60, 120, 180, and 240 kg ha−1) and five PL doses (0, 2, 4, 6, and 8 t ha−1). Fertilization with TSP and PL applied in the two preceding cycles promoted an increase in plant height, stalk diameter, number of tillers, and productivity in the second ratoon. The doses of triple superphosphate and chicken litter applied in cycles preceding the second ratoon were able to increase the agronomic performance of the genotype IACSP95-5094. However, the highest subsequent combined doses of triple superphosphate and chicken litter resulted in a 27% increase in stalk productivity. In general, the preceding doses of chicken litter showed greater potential to enhance the technological attributes.
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Claims 6
Claim · model-written summary
Earlier TSP and poultry litter fertilization increased second ratoon plant height.
- Taxon
- Sugarcanee1
- Treatment
- Fertilization with TSP and PL applied in the two preceding cyclese0
- Outcome
- plant heighte0
- Direction
- increasee0
Not reportedComparator
Verbatim
e0“Fertilization with TSP and PL applied in the two preceding cycles promoted an increase in plant height, stalk diameter, number of tillers, and productivity in the second ratoon.”
e1“Sugarcane requires high doses of phosphorus”
Claim · model-written summary
Earlier TSP and poultry litter fertilization increased second ratoon stalk diameter.
- Taxon
- Sugarcanee1
- Treatment
- Fertilization with TSP and PL applied in the two preceding cyclese0
- Outcome
- stalk diametere0
- Direction
- increasee0
Not reportedComparator
Verbatim
e0“Fertilization with TSP and PL applied in the two preceding cycles promoted an increase in plant height, stalk diameter, number of tillers, and productivity in the second ratoon.”
e1“Sugarcane requires high doses of phosphorus”
Claim · model-written summary
Earlier TSP and poultry litter fertilization increased second ratoon tiller number.
- Taxon
- Sugarcanee1
- Treatment
- Fertilization with TSP and PL applied in the two preceding cyclese0
- Outcome
- number of tillerse0
- Direction
- increasee0
Not reportedComparator
Verbatim
e0“Fertilization with TSP and PL applied in the two preceding cycles promoted an increase in plant height, stalk diameter, number of tillers, and productivity in the second ratoon.”
e1“Sugarcane requires high doses of phosphorus”
Claim · model-written summary
Earlier TSP and poultry litter fertilization increased second ratoon productivity.
- Taxon
- Sugarcanee1
- Treatment
- Fertilization with TSP and PL applied in the two preceding cyclese0
- Outcome
- productivitye0
- Direction
- increasee0
Not reportedComparator
Verbatim
e0“Fertilization with TSP and PL applied in the two preceding cycles promoted an increase in plant height, stalk diameter, number of tillers, and productivity in the second ratoon.”
e1“Sugarcane requires high doses of phosphorus”
Claim · model-written summary
Highest combined TSP and chicken litter doses raised stalk productivity 27%.
- Taxon
- Sugarcanee1
- Treatment
- highest subsequent combined doses of triple superphosphate and chicken littere0
- Outcome
- stalk productivitye0
- Direction
- increasee0
- Value
- 27%e0
Not reportedComparator
Verbatim
e0“the highest subsequent combined doses of triple superphosphate and chicken litter resulted in a 27% increase in stalk productivity.”
e1“Sugarcane requires high doses of phosphorus”
Claim · model-written summary
Earlier chicken litter doses had greater potential to improve sugarcane technological attributes.
- Taxon
- Sugarcanee1
- Treatment
- preceding doses of chicken littere0
- Outcome
- technological attributese0
- Direction
- enhancee0
Not reportedComparator
Verbatim
e0“the preceding doses of chicken litter showed greater potential to enhance the technological attributes.”
e1“Sugarcane requires high doses of phosphorus”
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