Abstract
【Objective】This study intended to improve use efficiency of nitrogen fertilizer for increasing sugarcane yield and reducing nitrogen pollution in agricultural production. 【Method】With ROC22 as test material, three different nitrogen fertilizer rates (38 kgN/ha, 276 kgN/ha and 414 kgN/ha)and three different application methods (1:10% nitrogen fertilizeras base fertilizer, 30% nitrogen fertilizer applied to soil dressing, 60% applied to big ridging;2:30% nitrogen fertilizer as base fertilizer,70% nitrogen fertilizer applied to soil dressing;3:100% nitrogen fertilizer as base fertilizer)were used to study the relationship among nitrogen, sugarcane growth and soil nutrient changes by investigating sugarcane agronomic characters,yield and soil nutrient. 【Result 】The results showed that sugarcane yield increased with nitrogen rate increasing yield which was the highest at 276 kgN/ha. Nitrogen fertilizer applied earlier could promote sugarcane jointing,early growth and increasing. Soil nitrogen and available potassium content rose with the increasing amount of nitrogen fertilizer. However,the excess nitrogen fertilizer could cause soil acidification. Nitrogen fertilizer applied early could help dissolve soil phosphate and improve phosphorus absorption and utilization. Applying nitrogen fertilizer completely as base fertilizer was likely to cause nitrogen loss and low use efficiency. 【Conclusion】 The appropriate application mode for sugarcane is applied twice at the mount of 138 -276 kgN/ha.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 8
Claim · model-written summary
Sugarcane yield increased with nitrogen rate and was highest at 276 kgN/ha.
Not reportedComparator
Verbatim
e0“sugarcane yield increased with nitrogen rate increasing yield which was the highest at 276 kgN/ha”
Claim · model-written summary
Earlier nitrogen application promoted sugarcane jointing and early growth.
- Taxon
- sugarcanee0
- Treatment
- Nitrogen fertilizer applied earliere0
- Outcome
- jointing,early growthe0
- Direction
- promotee0
Not reportedComparator
Verbatim
e0“Nitrogen fertilizer applied earlier could promote sugarcane jointing,early growth and increasing.”
Claim · model-written summary
Higher nitrogen application raised soil nitrogen and available potassium contents.
- Treatment
- increasing amount of nitrogen fertilizere0
- Outcome
- Soil nitrogen and available potassium contente0
- Direction
- rosee0
Not reportedTaxonComparator
Verbatim
e0“Soil nitrogen and available potassium content rose with the increasing amount of nitrogen fertilizer.”
Claim · model-written summary
Excess nitrogen could cause soil acidification.
Not reportedTaxonComparatorDirection
Verbatim
e0“the excess nitrogen fertilizer could cause soil acidification”
Claim · model-written summary
Early nitrogen application helped dissolve soil phosphate.
Not reportedTaxonComparatorDirection
Verbatim
e0“Nitrogen fertilizer applied early could help dissolve soil phosphate and improve phosphorus absorption and utilization.”
Claim · model-written summary
Early nitrogen application improved sugarcane phosphorus absorption and utilization.
- Taxon
- sugarcanet0
- Treatment
- Nitrogen fertilizer applied earlye0
- Outcome
- phosphorus absorption and utilizatione0
- Direction
- improvee0
Not reportedComparator
Verbatim
e0“Nitrogen fertilizer applied early could help dissolve soil phosphate and improve phosphorus absorption and utilization.”
t0“sugarcane”
Claim · model-written summary
Applying all nitrogen as base fertilizer was likely to cause nitrogen loss and low use efficiency.
- Treatment
- Applying nitrogen fertilizer completely as base fertilizere0
- Outcome
- nitrogen loss and low use efficiencye0
- Qualifier
- likelye0
Not reportedTaxonComparatorDirection
Verbatim
e0“Applying nitrogen fertilizer completely as base fertilizer was likely to cause nitrogen loss and low use efficiency.”
Claim · model-written summary
The recommended sugarcane nitrogen application is twice at 138–276 kgN/ha.
Verbatim
e0“The appropriate application mode for sugarcane is applied twice at the mount of 138 -276 kgN/ha.”
The same questions in other papers
fertilization · nutrient: content · Saccharum officinarum (sugarcane)Positive and negative results
70 papers in the same direction as this paper · 5 in the opposite direction · 2 reporting no difference from an alternative
- negative
- no effect
- no effect
74 papers more in this group
See all 78 papers →fertilization · growth · Saccharum officinarum (sugarcane)Positive and negative results
128 papers in the same direction as this paper · 14 in the opposite direction · 4 reporting no difference from an alternative
- positive
- negative
- negative
143 papers more in this group
See all 147 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.