Abstract
A field experiment was conducted for three consecutive years (2007-10) on calcareous soil at Pusa (Bihar) to evaluate 3 sugarcane ( Saccharum spp. hybrid complex) midlate genotypes (BO 147, BO 146 and CoP 022) at 3 levels of fertilizer viz; 75% RDF, RDF (150 kg N + 37.1 kg P + 49.8 kg K/ha) and 125% of RDF in two seasons (autumn and spring). Higher growth, yield attributes and cane yield in terms of tillers (170.4 and 149.3 thousand/ ha), cane length (211 and 204 cm), total dry matter accumulation (33.2 and 30.0 t/ha), number of millable cane (112.0 and 109.6 thousand/ha), cane yield (82.9 and 75.2 t/ha) and sugar yield (9.6 and 8.5 t/ha) were recorded in BO 147 in autumn and spring season, respectively. However, genotype BO 146 showed significantly higher val- ues of brix and pol % juice across the planting season. Nutrient uptake followed the yield pattern of the varieties. Genotype BO 147 gave higher net returns and benefit: cost ratio across the season. Significantly higher tillers (158.5 and 140.8 thousand/ha), cane length (213 and 208 cm), dry matter accumulation (33.9 and 30.9 t/ha), cane diameter (2.38 and 2.18 cm), number of millable canes (107.1 and 105.0 thousand/ha) and cane yield (86.0 and 79.9 t/ha) were obtained with the application of 125% recommended dose of fertilizer in autumn and spring sea- son, respectively. Though all of these parameters except dry matter in both the season and cane diameter during spring season were statistically similar to 100% RDF. Autumn planted sugarcane recorded 9.8 and 11.1% higher sugar over spring planted sugarcane. Nutrient uptake increased significantly with each successive increase in fer- tility level upto 125% RDF, resulting in 59.6; 53.2% increase in N uptake, 46.9; 51.2% increase in P uptake and 48.5; 50.9% increase in K uptake due to application of 125% RDF over 75% RDF during autumn and spring sea- son respectively. Similarly, the available N, P and K content of soil was found to be higher due to the enhanced levels of applied nutrients to the soil. Significant increase in net returns was obtained by increasing levels of N, P and K during both the seasons. Sugarcane BO 147 can be grown for higher sugar yield and economic returns with application of 187.5 kg N + 46.4 kg P + 62.3 kg K/ha (125% RDF) during autumn as well as spring season.
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Claims 13
Claim · model-written summary
BO 147 gave higher tiller count, cane length and dry matter in autumn and spring.
Verbatim
e0“Higher growth, yield attributes and cane yield in terms of tillers (170.4 and 149.3 thousand/ ha), cane length (211 and 204 cm), total dry matter accumulation (33.2 and 30.0 t/ha), number of millable cane (112.0 and 109.6 thousand/ha), cane yield (82.9 and 75.2 t/ha) and sugar yield (9.6 and 8.5 t/ha) were recorded in BO 147 in autumn and spring season, respectively.”
t0“sugarcane”
t1“sugarcane”
Claim · model-written summary
BO 147 gave higher millable cane count, cane yield and sugar yield across seasons.
Not reportedDirection
Verbatim
e0“number of millable cane (112.0 and 109.6 thousand/ha), cane yield (82.9 and 75.2 t/ha) and sugar yield (9.6 and 8.5 t/ha) were recorded in BO 147 in autumn and spring season, respectively.”
t0“sugarcane”
t1“sugarcane”
Claim · model-written summary
BO 146 had significantly higher brix and juice pol percentage across seasons.
Verbatim
e0“genotype BO 146 showed significantly higher val- ues of brix and pol % juice across the planting season.”
t0“sugarcane”
t1“sugarcane”
Claim · model-written summary
Nutrient uptake followed the varietal yield pattern.
Not reportedDirection
Verbatim
e0“Nutrient uptake followed the yield pattern of the varieties.”
t0“sugarcane”
t1“sugarcane”
Claim · model-written summary
BO 147 gave higher net returns and benefit to cost ratio across seasons.
Verbatim
e0“Genotype BO 147 gave higher net returns and benefit: cost ratio across the season.”
t0“sugarcane”
t1“sugarcane”
Claim · model-written summary
Applying 125% RDF significantly increased tiller count, cane length and dry matter across seasons.
Not reportedComparator
Verbatim
e0“Significantly higher tillers (158.5 and 140.8 thousand/ha), cane length (213 and 208 cm), dry matter accumulation (33.9 and 30.9 t/ha), cane diameter (2.38 and 2.18 cm), number of millable canes (107.1 and 105.0 thousand/ha) and cane yield (86.0 and 79.9 t/ha) were obtained with the application of 125% recommended dose of fertilizer in autumn and spring sea- son, respectively.”
t0“sugarcane”
t1“sugarcane”
Claim · model-written summary
Applying 125% RDF increased cane diameter, millable cane count and cane yield across seasons.
Not reportedComparatorDirection
Verbatim
e0“cane diameter (2.38 and 2.18 cm), number of millable canes (107.1 and 105.0 thousand/ha) and cane yield (86.0 and 79.9 t/ha) were obtained with the application of 125% recommended dose of fertilizer in autumn and spring sea- son, respectively.”
t0“sugarcane”
t1“sugarcane”
Claim · model-written summary
Most 125% RDF growth and yield measurements were statistically similar to 100% RDF, except dry matter in both seasons and spring cane diameter.
Verbatim
e0“all of these parameters except dry matter in both the season and cane diameter during spring season were statistically similar to 100% RDF.”
e1“Nutrient uptake increased significantly with each successive increase in fer- tility level upto 125% RDF”
t0“sugarcane”
t1“sugarcane”
Claim · model-written summary
Autumn planting increased sugar yield by 9.8 and 11.1% over spring planting.
Verbatim
e0“Autumn planted sugarcane recorded 9.8 and 11.1% higher sugar over spring planted sugarcane.”
Claim · model-written summary
Increasing fertility through 125% RDF significantly increased nutrient uptake.
Not reportedComparator
Verbatim
e0“Nutrient uptake increased significantly with each successive increase in fer- tility level upto 125% RDF”
t0“sugarcane”
t1“sugarcane”
Claim · model-written summary
Enhanced nutrient application increased soil available nitrogen, phosphorus and potassium.
- Taxon
- sugarcanet0
- Treatment
- enhanced levels of applied nutrientse0
- Outcome
- available N, P and K content of soile0
- Direction
- highere0
Not reportedComparator
Verbatim
e0“the available N, P and K content of soil was found to be higher due to the enhanced levels of applied nutrients to the soil.”
t0“sugarcane”
t1“sugarcane”
Claim · model-written summary
Increasing N, P and K significantly increased net returns in both seasons.
Not reportedComparator
Verbatim
e0“Significant increase in net returns was obtained by increasing levels of N, P and K during both the seasons.”
t0“sugarcane”
t1“sugarcane”
Claim · model-written summary
The authors recommend BO 147 with 125% RDF in autumn or spring for sugar yield and returns.
Verbatim
e0“Sugarcane BO 147 can be grown for higher sugar yield and economic returns with application of 187.5 kg N + 46.4 kg P + 62.3 kg K/ha (125% RDF) during autumn as well as spring season.”
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