Abstract
This study examines the effects of nitrogen on the growth, yield and quality of three sugarcane varieties under irrigated conditions in the low country dry zone of Sri Lanka. Three sugarcane varieties (SL96-128, SL04-624 and SL8306) were tested at four nitrogen fertilizer levels (0, 100, 200, 300 kg/ha) in a split plot design with four replicates. Selected growth, yield and quality parameters were studied in this field experiment. The results of the study demonstrated that application of 100kg/ha or 300kg/ha N fertilizer has shown highest girth of stem (cm), partitioning biomass to millable stalk (PBMS), brix and pol percentage in all three varieties, SL04-624, SL8306 and SL96-128. In addition, variety SL04-624 have shown highest total above ground biomass production (dry matter) (41987.8kg/ha), partitioning biomass to millable stalk (PBMS) (74.5%), brix (19.4%), pol (17.1%) and pure obtainable cane sugar (POCS) (12.3%). Therefore 100k/ha (N2) could be concluded as the best rate of N fertilizer application for the varieties tested in this study considering the cost of production, environmental and groundwater pollution. SL04-624 could be recommended as the most suitable variety for low country wet zone of Sri Lanka responding to 100kg/ha N fertilizer.
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Claims 9
Claim · model-written summary
At 100 or 300 kg/ha nitrogen, all three sugarcane varieties had the highest stem girth and millable-stalk biomass partitioning.
- Taxon
- sugarcanet0
- Treatment
- 100kg/ha or 300kg/ha N fertilizere0
- Outcome
- girth of stem (cm), partitioning biomass to millable stalk (PBMS)e0
- Direction
- higheste0
Not reportedComparator
Verbatim
e0“application of 100kg/ha or 300kg/ha N fertilizer has shown highest girth of stem (cm), partitioning biomass to millable stalk (PBMS), brix and pol percentage in all three varieties, SL04-624, SL8306 and SL96-128”
t0“sugarcane (Saccharum Officinarum L.)”
Claim · model-written summary
At 100 or 300 kg/ha nitrogen, all three varieties had the highest brix and pol percentage.
- Taxon
- sugarcanet0
- Treatment
- 100kg/ha or 300kg/ha N fertilizere0
- Outcome
- brix and pol percentagee0
- Direction
- higheste0
Not reportedComparator
Verbatim
e0“application of 100kg/ha or 300kg/ha N fertilizer has shown highest girth of stem (cm), partitioning biomass to millable stalk (PBMS), brix and pol percentage in all three varieties, SL04-624, SL8306 and SL96-128”
t0“sugarcane (Saccharum Officinarum L.)”
Claim · model-written summary
SL04-624 had the highest total above-ground dry biomass at 41987.8kg/ha.
Verbatim
e0“variety SL04-624 have shown highest total above ground biomass production (dry matter) (41987.8kg/ha)”
Claim · model-written summary
SL04-624 had the highest partitioning of biomass to millable stalk, at 74.5%.
Verbatim
e0“SL04-624 have shown highest total above ground biomass production (dry matter) (41987.8kg/ha), partitioning biomass to millable stalk (PBMS) (74.5%)”
Claim · model-written summary
SL04-624 had the highest brix, at 19.4%.
Verbatim
e0“SL04-624 have shown highest total above ground biomass production (dry matter) (41987.8kg/ha), partitioning biomass to millable stalk (PBMS) (74.5%), brix (19.4%)”
Claim · model-written summary
SL04-624 had the highest pol, at 17.1%.
Verbatim
e0“SL04-624 have shown highest total above ground biomass production (dry matter) (41987.8kg/ha), partitioning biomass to millable stalk (PBMS) (74.5%), brix (19.4%), pol (17.1%)”
Claim · model-written summary
SL04-624 had the highest pure obtainable cane sugar, at 12.3%.
Verbatim
e0“SL04-624 have shown highest total above ground biomass production (dry matter) (41987.8kg/ha), partitioning biomass to millable stalk (PBMS) (74.5%), brix (19.4%), pol (17.1%) and pure obtainable cane sugar (POCS) (12.3%)”
Claim · model-written summary
The authors recommend 100k/ha nitrogen as the best rate for the tested varieties.
Verbatim
e0“100k/ha (N2) could be concluded as the best rate of N fertilizer application for the varieties tested in this study considering the cost of production, environmental and groundwater pollution”
t0“sugarcane (Saccharum Officinarum L.)”
Claim · model-written summary
The authors recommend SL04-624 as the most suitable variety for the low country wet zone at 100kg/ha nitrogen.
Verbatim
e0“SL04-624 could be recommended as the most suitable variety for low country wet zone of Sri Lanka responding to 100kg/ha N fertilizer”
t0“sugarcane (Saccharum Officinarum L.)”
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