Abstract
SUMMARY Sugarcane ( Saccharum spp.) ratoon crops comprise more than 0·50 of India's sugarcane acreage and reduce the cost of cultivation by 25–30%. However, ratooning is seldom practised beyond 1–2 ratoons because the yield declines in successive ratoons due to compacted soils with decreased fertility restricting root development and plant growth. Therefore, a field experiment on sugarcane was conducted from 1998 to 2003 at the Sugarcane Research Institute, Muzzaffarnagar (Uttar Pradesh), India to evaluate the effects of combinations of trash management with key cultural practices (stubble shaving, ridge dismantling, sub-soiling along stubble rows, trash mulching and earthing-up) on growth and yield of sugarcane up to the third ratoon. Two treatment combinations (ridge dismantling+stubble shaving+sub-soiling along stubble rows+trash mulching at 8 t/ha (T 5 ) and all these plus earthing-up in June (T 6 )) showed similar growth, yield and economics of ratoon crops. Both these treatments produced significantly higher shoot populations, leaf area index (LAI), dry matter (DM) accumulation, net assimilation rate (NAR), number of millable canes, ratoon cane yield and sugar, soil organic carbon (SOC) content at harvest and higher net returns besides lowering weed density, weed dry weight and bulk density of soil compared with other treatments. T 6 produced the highest cane yield of 77, 72 and 65 tonnes (t)/ha, which was 23, 27 and 29% more than trash burning alone (T 1 ) in first, second and third ratoon crops, respectively. Although T 6 had the same yield as T 5 , it led to significantly lower soil bulk density at 0–150 mm depth, higher SOC contents and greater benefit: cost ratios in the first, second and third ratoon crops, respectively compared with trash burning only. Adoption of the crop management components, separately or in combination, improved on trash burning only (the control treatment). Trash mulching sustained the improved yield and economic returns of sugarcane ratoon crops.
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Claims 12
Claim · model-written summary
The T5 and T6 combinations showed similar growth, yield and economics in ratoon crops.
Verbatim
e1“to evaluate the effects of combinations of trash management with key cultural practices (stubble shaving, ridge dismantling, sub-soiling along stubble rows, trash mulching and earthing-up) on growth and yield of sugarcane up to the third ratoon”
e2“Two treatment combinations (ridge dismantling+stubble shaving+sub-soiling along stubble rows+trash mulching at 8 t/ha (T 5 ) and all these plus earthing-up in June (T 6 )) showed similar growth, yield and economics of ratoon crops”
Claim · model-written summary
Both T5 and T6 significantly increased shoot populations, leaf area index and dry matter accumulation compared with other treatments.
Verbatim
e1“to evaluate the effects of combinations of trash management with key cultural practices (stubble shaving, ridge dismantling, sub-soiling along stubble rows, trash mulching and earthing-up) on growth and yield of sugarcane up to the third ratoon”
e3“Both these treatments produced significantly higher shoot populations, leaf area index (LAI), dry matter (DM) accumulation, net assimilation rate (NAR), number of millable canes, ratoon cane yield and sugar, soil organic carbon (SOC) content at harvest and higher net returns besides lowering weed density, weed dry weight and bulk density of soil compared with other treatments”
Claim · model-written summary
Both T5 and T6 significantly increased net assimilation rate, number of millable canes and ratoon cane yield compared with other treatments.
Verbatim
e1“to evaluate the effects of combinations of trash management with key cultural practices (stubble shaving, ridge dismantling, sub-soiling along stubble rows, trash mulching and earthing-up) on growth and yield of sugarcane up to the third ratoon”
e3“Both these treatments produced significantly higher shoot populations, leaf area index (LAI), dry matter (DM) accumulation, net assimilation rate (NAR), number of millable canes, ratoon cane yield and sugar, soil organic carbon (SOC) content at harvest and higher net returns besides lowering weed density, weed dry weight and bulk density of soil compared with other treatments”
Claim · model-written summary
Both T5 and T6 significantly increased sugar and soil organic carbon content at harvest compared with other treatments.
Verbatim
e1“to evaluate the effects of combinations of trash management with key cultural practices (stubble shaving, ridge dismantling, sub-soiling along stubble rows, trash mulching and earthing-up) on growth and yield of sugarcane up to the third ratoon”
e3“Both these treatments produced significantly higher shoot populations, leaf area index (LAI), dry matter (DM) accumulation, net assimilation rate (NAR), number of millable canes, ratoon cane yield and sugar, soil organic carbon (SOC) content at harvest and higher net returns besides lowering weed density, weed dry weight and bulk density of soil compared with other treatments”
Claim · model-written summary
Both T5 and T6 significantly increased net returns compared with other treatments.
Verbatim
e1“to evaluate the effects of combinations of trash management with key cultural practices (stubble shaving, ridge dismantling, sub-soiling along stubble rows, trash mulching and earthing-up) on growth and yield of sugarcane up to the third ratoon”
e3“Both these treatments produced significantly higher shoot populations, leaf area index (LAI), dry matter (DM) accumulation, net assimilation rate (NAR), number of millable canes, ratoon cane yield and sugar, soil organic carbon (SOC) content at harvest and higher net returns besides lowering weed density, weed dry weight and bulk density of soil compared with other treatments”
Claim · model-written summary
Both T5 and T6 significantly lowered weed density and weed dry weight compared with other treatments.
Verbatim
e1“to evaluate the effects of combinations of trash management with key cultural practices (stubble shaving, ridge dismantling, sub-soiling along stubble rows, trash mulching and earthing-up) on growth and yield of sugarcane up to the third ratoon”
e3“Both these treatments produced significantly higher shoot populations, leaf area index (LAI), dry matter (DM) accumulation, net assimilation rate (NAR), number of millable canes, ratoon cane yield and sugar, soil organic carbon (SOC) content at harvest and higher net returns besides lowering weed density, weed dry weight and bulk density of soil compared with other treatments”
Claim · model-written summary
Both T5 and T6 significantly lowered soil bulk density compared with other treatments.
Verbatim
e1“to evaluate the effects of combinations of trash management with key cultural practices (stubble shaving, ridge dismantling, sub-soiling along stubble rows, trash mulching and earthing-up) on growth and yield of sugarcane up to the third ratoon”
e3“Both these treatments produced significantly higher shoot populations, leaf area index (LAI), dry matter (DM) accumulation, net assimilation rate (NAR), number of millable canes, ratoon cane yield and sugar, soil organic carbon (SOC) content at harvest and higher net returns besides lowering weed density, weed dry weight and bulk density of soil compared with other treatments”
Claim · model-written summary
T6 yielded 23, 27 and 29% more cane than trash burning alone in first, second and third ratoon crops.
Verbatim
e1“to evaluate the effects of combinations of trash management with key cultural practices (stubble shaving, ridge dismantling, sub-soiling along stubble rows, trash mulching and earthing-up) on growth and yield of sugarcane up to the third ratoon”
e2“Two treatment combinations (ridge dismantling+stubble shaving+sub-soiling along stubble rows+trash mulching at 8 t/ha (T 5 ) and all these plus earthing-up in June (T 6 )) showed similar growth, yield and economics of ratoon crops”
e3“T 6 produced the highest cane yield of 77, 72 and 65 tonnes (t)/ha, which was 23, 27 and 29% more than trash burning alone (T 1 ) in first, second and third ratoon crops, respectively”
Claim · model-written summary
T6 had the same yield as T5.
Verbatim
e1“to evaluate the effects of combinations of trash management with key cultural practices (stubble shaving, ridge dismantling, sub-soiling along stubble rows, trash mulching and earthing-up) on growth and yield of sugarcane up to the third ratoon”
e2“Although T 6 had the same yield as T 5 , it led to significantly lower soil bulk density at 0–150 mm depth, higher SOC contents and greater benefit: cost ratios in the first, second and third ratoon crops, respectively compared with trash burning only”
Claim · model-written summary
T6 gave greater benefit: cost ratios than trash burning only in first, second and third ratoon crops.
Verbatim
e1“to evaluate the effects of combinations of trash management with key cultural practices (stubble shaving, ridge dismantling, sub-soiling along stubble rows, trash mulching and earthing-up) on growth and yield of sugarcane up to the third ratoon”
e2“Although T 6 had the same yield as T 5 , it led to significantly lower soil bulk density at 0–150 mm depth, higher SOC contents and greater benefit: cost ratios in the first, second and third ratoon crops, respectively compared with trash burning only”
Claim · model-written summary
Crop management components, separately or in combination, improved ratoon crop performance compared with trash burning only.
- Taxon
- sugarcanee1
- Treatment
- crop management components, separately or in combinatione2
- Direction
- improvede2
- Comparator
- trash burning onlye2
Not reportedOutcome
Verbatim
e1“to evaluate the effects of combinations of trash management with key cultural practices (stubble shaving, ridge dismantling, sub-soiling along stubble rows, trash mulching and earthing-up) on growth and yield of sugarcane up to the third ratoon”
e2“Adoption of the crop management components, separately or in combination, improved on trash burning only (the control treatment)”
Claim · model-written summary
Trash mulching sustained improved yield and economic returns of sugarcane ratoon crops.
Not reportedComparator
Verbatim
e1“Trash mulching sustained the improved yield and economic returns of sugarcane ratoon crops”
The same questions in other papers
mulching · yield · Saccharum officinarum (sugarcane)Positive and negative results
32 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- no effect
32 papers more in this group
See all 36 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.