Abstract
A field experiment was carried out during the spring seasons of 200708 and 200809 at Muzaffarnagar, Uttar Pradesh to study the effect of NPK levels and weed-management practices on yield potential, nutrient uptake and economics of sugarcane ( Saccharum officinar um L.). The crop was fertilized with 75% recommended dose of fer- tilizer (RDF), 100% RDF (150:60:60 kg/ha of N: P O : K O) and 125% RDF in combination with 7 weed manage- 2 5 2 ment practices, viz. weedy check; weed free; three hoeing at 30, 60 and 90 days after planting; one hoeing at 30 days after planting followed by atrazine @ 2.0 kg a.i./ha; atrazine @ 2.0 kg a.i./ha as pre-emergence (PE) + 2,4-D @ 1.0 kg a.i./ha at 60 days after planting; glyphosate @ 1.0 kg a.i./ha at 25 days after planting + one hoeing at 60 days after planting and Sesbania sowing in inter-row space followed by 2,4-D @ 1.0 kg a.i./ha at 45 days after planting. The crop fertilized with 125% RDF being at par with RDF resulted in the highest cane yield and number of millable canes, being 15.5 and 22.3% higher respectively, than lower fertility level mainly because of remarkable improvement in individual cane weight, cane girth, cane length, tillering and lower mortality. The dose of 125% RDF was found economically more sound, as it generated the highest return of 86,740/ha with benefit: cost ratio of 2.35. The highest nutrient uptake by sugarcane and total nutrient removal by sugarcane + weeds was recorded with 125% RDF which was significantly higher over RDF. The total uptake of nutrients followed the trend similar to that of nutrient removal by sugarcane. Among the weed-management practices, 3 manual hoeings at 30, 60 and 90 days after planting being at par with the treatment post-emergence application of glyphosate @ 1.0 kg a.i. at 25 days after planting + one hoeing at 60 days after planting proved efficient in controlling the weed population and dry-matter production all the growth stages, as evident by the highest weed control efficiency. The cane yield, millable canes and nutrient removal were witnessed higher under glyphosate @ 1.0 kg a.i. at 25 days after plant- ing + one hoeing at 60 days after planting, followed by 3 manual hoeing at 30, 60 and 90 days after planting. Under weedy check plots, weeds removed the maximum nutrients, whereas lower uptake was observed under weed free conditions. Glyphosate @ 1.0 kg a.i./ha at 25 days after planting + 1 hoeing at 60 days after planting was the best weed-management practices for higher net return ( 91,067/ha) and benefit: cost ratio (3.60) when it was com- pared to other treatments.
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Claims 18
Claim · model-written summary
125% RDF gave 15.5% higher cane yield than lower fertility.
- Taxon
- sugarcane (Saccharum officinarum)
Saccharum officinarumt0 - Treatment
- 125% RDFe0
- Outcome
- cane yielde0
- Direction
- highere0
- Value
- 15.5e0
- Comparator
- lower fertility levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The crop fertilized with 125% RDF being at par with RDF resulted in the highest cane yield and number of millable canes, being 15.5 and 22.3% higher respectively, than lower fertility level mainly because of remarkable improvement in individual cane weight, cane girth, cane length, tillering and lower mortality.”
t0“sugarcane (Saccharum officinarum)”
Claim · model-written summary
125% RDF gave 22.3% more millable canes than lower fertility.
- Taxon
- sugarcane (Saccharum officinarum)Saccharum officinarumt0
- Treatment
- 125% RDFe0
- Outcome
- number of millable canese0
- Direction
- highere0
- Value
- 22.3%e0
- Comparator
- lower fertility levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The crop fertilized with 125% RDF being at par with RDF resulted in the highest cane yield and number of millable canes, being 15.5 and 22.3% higher respectively, than lower fertility level mainly because of remarkable improvement in individual cane weight, cane girth, cane length, tillering and lower mortality.”
t0“sugarcane (Saccharum officinarum)”
Claim · model-written summary
125% RDF improved cane weight, girth, length, tillering and mortality.
- Taxon
- sugarcane (Saccharum officinarum)Saccharum officinarumt0
- Treatment
- 125% RDFe0
- Outcome
- individual cane weight, cane girth, cane lengthe0
- Direction
- improvemente0
- Comparator
- lower fertility levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The crop fertilized with 125% RDF being at par with RDF resulted in the highest cane yield and number of millable canes, being 15.5 and 22.3% higher respectively, than lower fertility level mainly because of remarkable improvement in individual cane weight, cane girth, cane length, tillering and lower mortality.”
t0“sugarcane (Saccharum officinarum)”
Claim · model-written summary
125% RDF improved tillering and lowered mortality.
- Taxon
- sugarcane (Saccharum officinarum)Saccharum officinarumt0
- Treatment
- 125% RDFe0
- Outcome
- tillering and lower mortalitye0
- Direction
- improvemente0
- Comparator
- lower fertility levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The crop fertilized with 125% RDF being at par with RDF resulted in the highest cane yield and number of millable canes, being 15.5 and 22.3% higher respectively, than lower fertility level mainly because of remarkable improvement in individual cane weight, cane girth, cane length, tillering and lower mortality.”
t0“sugarcane (Saccharum officinarum)”
Claim · model-written summary
125% RDF produced the highest return of 86,740/ha.
- Taxon
- sugarcane (Saccharum officinarum)Saccharum officinarumt0
- Treatment
- 125% RDFe0
- Outcome
- returne0
- Direction
- higheste0
- Value
- 86,740/hae0
- Comparator
- RDFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dose of 125% RDF was found economically more sound, as it generated the highest return of 86,740/ha with benefit: cost ratio of 2.35.”
t0“sugarcane (Saccharum officinarum)”
Claim · model-written summary
125% RDF produced a benefit to cost ratio of 2.35.
- Taxon
- sugarcane (Saccharum officinarum)Saccharum officinarumt0
- Treatment
- 125% RDFe0
- Outcome
- benefit: cost ratioe0
- Direction
- higheste0
- Value
- 2.35e0
- Comparator
- RDFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dose of 125% RDF was found economically more sound, as it generated the highest return of 86,740/ha with benefit: cost ratio of 2.35.”
t0“sugarcane (Saccharum officinarum)”
Claim · model-written summary
125% RDF significantly raised sugarcane nutrient uptake over RDF.
Verbatim
e0“The highest nutrient uptake by sugarcane and total nutrient removal by sugarcane + weeds was recorded with 125% RDF which was significantly higher over RDF.”
Claim · model-written summary
125% RDF significantly raised nutrient removal by sugarcane and weeds over RDF.
Verbatim
e0“The highest nutrient uptake by sugarcane and total nutrient removal by sugarcane + weeds was recorded with 125% RDF which was significantly higher over RDF.”
Claim · model-written summary
Sugarcane nutrient uptake followed the trend of nutrient removal.
Verbatim
e0“The total uptake of nutrients followed the trend similar to that of nutrient removal by sugarcane.”
Claim · model-written summary
Three manual hoeings efficiently controlled weed populations.
- Taxon
- sugarcane (Saccharum officinarum)Saccharum officinarumt0
- Treatment
- 3 manual hoeings at 30, 60 and 90 days after plantinge0
- Interactor
- weede0weed
- Outcome
- weed populatione0
- Direction
- controllinge0
- Comparator
- post-emergence application of glyphosate @ 1.0 kg a.i. at 25 days after planting + one hoeing at 60 days after plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the weed-management practices, 3 manual hoeings at 30, 60 and 90 days after planting being at par with the treatment post-emergence application of glyphosate @ 1.0 kg a.i. at 25 days after planting + one hoeing at 60 days after planting proved efficient in controlling the weed population and dry-matter production all the growth stages, as evident by the highest weed control efficiency.”
t0“sugarcane (Saccharum officinarum)”
Claim · model-written summary
Three manual hoeings efficiently controlled weed dry matter.
- Taxon
- sugarcane (Saccharum officinarum)Saccharum officinarumt0
- Treatment
- 3 manual hoeings at 30, 60 and 90 days after plantinge0
- Interactor
- weede0weed
- Outcome
- dry-matter productione0
- Direction
- controllinge0
- Comparator
- post-emergence application of glyphosate @ 1.0 kg a.i. at 25 days after planting + one hoeing at 60 days after plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the weed-management practices, 3 manual hoeings at 30, 60 and 90 days after planting being at par with the treatment post-emergence application of glyphosate @ 1.0 kg a.i. at 25 days after planting + one hoeing at 60 days after planting proved efficient in controlling the weed population and dry-matter production all the growth stages, as evident by the highest weed control efficiency.”
t0“sugarcane (Saccharum officinarum)”
Claim · model-written summary
Glyphosate plus hoeing gave higher cane yield than three manual hoeings.
- Taxon
- sugarcane (Saccharum officinarum)Saccharum officinarumt0
- Treatment
- glyphosate @ 1.0 kg a.i. at 25 days after plant- ing + one hoeing at 60 days after plantinge0
- Outcome
- cane yielde0
- Direction
- highere0
- Comparator
- 3 manual hoeing at 30, 60 and 90 days after plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cane yield, millable canes and nutrient removal were witnessed higher under glyphosate @ 1.0 kg a.i. at 25 days after plant- ing + one hoeing at 60 days after planting, followed by 3 manual hoeing at 30, 60 and 90 days after planting.”
t0“sugarcane (Saccharum officinarum)”
Claim · model-written summary
Glyphosate plus hoeing gave more millable canes than three manual hoeings.
- Taxon
- sugarcane (Saccharum officinarum)Saccharum officinarumt0
- Treatment
- glyphosate @ 1.0 kg a.i. at 25 days after plant- ing + one hoeing at 60 days after plantinge0
- Outcome
- millable canese0
- Direction
- highere0
- Comparator
- 3 manual hoeing at 30, 60 and 90 days after plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cane yield, millable canes and nutrient removal were witnessed higher under glyphosate @ 1.0 kg a.i. at 25 days after plant- ing + one hoeing at 60 days after planting, followed by 3 manual hoeing at 30, 60 and 90 days after planting.”
t0“sugarcane (Saccharum officinarum)”
Claim · model-written summary
Glyphosate plus hoeing gave higher nutrient removal than three manual hoeings.
- Taxon
- sugarcane (Saccharum officinarum)Saccharum officinarumt0
- Treatment
- glyphosate @ 1.0 kg a.i. at 25 days after plant- ing + one hoeing at 60 days after plantinge0
- Outcome
- nutrient removale0
- Direction
- highere0
- Comparator
- 3 manual hoeing at 30, 60 and 90 days after plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cane yield, millable canes and nutrient removal were witnessed higher under glyphosate @ 1.0 kg a.i. at 25 days after plant- ing + one hoeing at 60 days after planting, followed by 3 manual hoeing at 30, 60 and 90 days after planting.”
t0“sugarcane (Saccharum officinarum)”
Claim · model-written summary
Weeds removed maximum nutrients in weedy checks.
- Taxon
- sugarcane (Saccharum officinarum)Saccharum officinarumt0
- Treatment
- weedy checke0
- Interactor
- weedse0weed
- Outcome
- weeds removed the maximum nutrientse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under weedy check plots, weeds removed the maximum nutrients, whereas lower uptake was observed under weed free conditions.”
t0“sugarcane (Saccharum officinarum)”
Claim · model-written summary
Weed nutrient uptake was lower under weed free conditions.
- Taxon
- sugarcane (Saccharum officinarum)Saccharum officinarumt0
- Treatment
- weed free conditionse0
- Interactor
- weedse0weed
- Outcome
- uptakee0
- Direction
- lowere0
- Comparator
- weedy check plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under weedy check plots, weeds removed the maximum nutrients, whereas lower uptake was observed under weed free conditions.”
t0“sugarcane (Saccharum officinarum)”
Claim · model-written summary
Glyphosate plus hoeing gave a higher net return of 91,067/ha than other treatments.
- Taxon
- sugarcane (Saccharum officinarum)Saccharum officinarumt0
- Treatment
- Glyphosate @ 1.0 kg a.i./ha at 25 days after planting + 1 hoeing at 60 days after plantinge0
- Outcome
- net returne0
- Direction
- highere0
- Value
- 91,067/hae0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glyphosate @ 1.0 kg a.i./ha at 25 days after planting + 1 hoeing at 60 days after planting was the best weed-management practices for higher net return ( 91,067/ha) and benefit: cost ratio (3.60) when it was com- pared to other treatments.”
t0“sugarcane (Saccharum officinarum)”
Claim · model-written summary
Glyphosate plus hoeing gave a benefit to cost ratio of 3.60.
- Taxon
- sugarcane (Saccharum officinarum)Saccharum officinarumt0
- Treatment
- Glyphosate @ 1.0 kg a.i./ha at 25 days after planting + 1 hoeing at 60 days after plantinge0
- Outcome
- benefit: cost ratioe0
- Direction
- highere0
- Value
- 3.60e0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glyphosate @ 1.0 kg a.i./ha at 25 days after planting + 1 hoeing at 60 days after planting was the best weed-management practices for higher net return ( 91,067/ha) and benefit: cost ratio (3.60) when it was com- pared to other treatments.”
t0“sugarcane (Saccharum officinarum)”
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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.