Abstract
A field experiment was carried out during the spring seasons of 2008-09 and 2009-10 at Varanasi, Uttar Pradesh to find out exact time of earthing up with level of earthing up and optimum doses of nitrogen for getting higher productivity, monetary returns, and changes in the fertility status of soils after harvest of ratoon sugarcane (Saccharum officinarum L.). Twentieth fifth April earthed crop produced significantly more height of tillers, leaf area index at maximum tillering stage, grand growth stage and at harvest, dry matter/tiller at maximum tillering stage at grand growth stage and at harvest, cane length, cane diameter of top, middle and bottom, weight of cane, cane yield, monetary returns, B/C ratio, N, P and K uptake except number of tillers/ha, number of millable cane/ha and net available soil nutrient after the harvest of ratoon crops as compared to 25th May and 25th June respectively. Twentieth cm height of earthing up from the ridge also significantly increased all the above parameters such as height of tillers, LAI of maximum tillering stage, grand growth stage and harvest, dry matter/tiller at maximum tillering stage, grand growth stage and at harvest, cane length, weight of cane and cane yield than that of 10 cm earthed crop in both the ratoon crops. Application of 210 kg N/ha linearly and significantly increased number of tillers/ha at 60 and 120 days after ratooning, height of tillers at 120 days after ratooning, LAI at maximum tillering stage, grand growth stage, and at harvest, dry matter/tiller at maximum tillering stage, grand growth stage and at harvest, number of millable cane, cane length, cane weight, cane yield, monetary returns, B/C ratio and N, P, K uptake followed by 180 kg N/ha. Ratoon crop showed that there was a build up of nitrogen and phosphorous but depletion in potassium content of the soil. 210 kg N/ha with earlier earthed at 25th April to a level of 20 cm was found optimum for obtaining higher yields and monetary returns.
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Claims 8
Claim · model-written summary
April 25 earthing up increased cane growth traits relative to May and June timing.
- Taxon
- Saccharum officinarum L.
Saccharum officinarume2 - Treatment
- Twentieth fifth Aprile0
- Outcome
- height of tillers, leaf area indexe0
- Direction
- moree0
- Comparator
- 25th May and 25th Junee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Twentieth fifth April earthed crop produced significantly more height of tillers, leaf area index at maximum tillering stage, grand growth stage and at harvest, dry matter/tiller at maximum tillering stage at grand growth stage and at harvest, cane length, cane diameter of top, middle and bottom, weight of cane”
e1“as compared to 25th May and 25th June respectively”
e2“ratoon sugarcane (Saccharum officinarum L.)”
Claim · model-written summary
April 25 earthing up increased cane yield, monetary returns and benefit-cost ratio relative to later dates.
- Taxon
- Saccharum officinarum L.Saccharum officinarume3
- Treatment
- Twentieth fifth Aprile1
- Outcome
- cane yield, monetary returns, B/C ratioe0
- Direction
- moree1
- Comparator
- 25th May and 25th Junee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cane yield, monetary returns, B/C ratio, N, P and K uptake”
e1“Twentieth fifth April earthed crop produced significantly more”
e2“as compared to 25th May and 25th June respectively”
e3“ratoon sugarcane (Saccharum officinarum L.)”
Claim · model-written summary
April 25 earthing up increased N, P and K uptake relative to later dates.
- Taxon
- Saccharum officinarum L.Saccharum officinarume3
- Treatment
- Twentieth fifth Aprile1
- Outcome
- N, P and K uptakee0
- Direction
- moree1
- Comparator
- 25th May and 25th Junee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N, P and K uptake”
e1“Twentieth fifth April earthed crop produced significantly more”
e2“as compared to 25th May and 25th June respectively”
e3“ratoon sugarcane (Saccharum officinarum L.)”
Claim · model-written summary
Earthing up to 20 cm increased ratoon crop growth and cane yield versus 10 cm.
- Taxon
- Saccharum officinarum L.Saccharum officinarume1
- Treatment
- Twentieth cm height of earthing upe0
- Outcome
- height of tillers, LAIe0
- Direction
- increasede0
- Comparator
- 10 cm earthed crope2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Twentieth cm height of earthing up from the ridge also significantly increased all the above parameters such as height of tillers, LAI of maximum tillering stage”
e1“ratoon sugarcane (Saccharum officinarum L.)”
e2“than that of 10 cm earthed crop”
Claim · model-written summary
Applying 210 kg N/ha significantly increased ratoon growth and yield traits relative to 180 kg N/ha.
- Taxon
- Saccharum officinarum L.Saccharum officinarume1
- Treatment
- 210 kg N/hae0
- Outcome
- number of tillers/hae0
- Direction
- increasede0
- Comparator
- 180 kg N/hae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 210 kg N/ha linearly and significantly increased number of tillers/ha at 60 and 120 days after ratooning”
e1“ratoon sugarcane (Saccharum officinarum L.)”
e2“followed by 180 kg N/ha”
Claim · model-written summary
The ratoon crop was associated with increased soil nitrogen and phosphorus and depleted potassium.
- Taxon
- Saccharum officinarum L.Saccharum officinarume1
- Outcome
- build up of nitrogen and phosphorouse0
- Direction
- build upe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ratoon crop showed that there was a build up of nitrogen and phosphorous but depletion in potassium content of the soil”
e1“ratoon sugarcane (Saccharum officinarum L.)”
Claim · model-written summary
Ratoon cropping depleted soil potassium content.
- Taxon
- Saccharum officinarum L.Saccharum officinarume1
- Outcome
- potassium content of the soile0
- Direction
- depletione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“depletion in potassium content of the soil”
e1“ratoon sugarcane (Saccharum officinarum L.)”
Claim · model-written summary
The authors identified 210 kg N/ha with April 25 earthing up to 20 cm as optimal for yield and returns.
- Taxon
- Saccharum officinarum L.Saccharum officinarume1
- Treatment
- 210 kg N/ha with earlier earthed at 25th April to a level of 20 cme0
- Outcome
- higher yields and monetary returnse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“210 kg N/ha with earlier earthed at 25th April to a level of 20 cm was found optimum for obtaining higher yields and monetary returns”
e1“ratoon sugarcane (Saccharum officinarum L.)”
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
- no effect
- negative
- 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.