Effect of Phosphorus on the leaf yield, nutrient uptake and P-use efficiencies of sun cured chewing tobacco (Nicotiana tobacum) grown in Tamil Nadu
A field experiment was conducted during 2005-2009 to study the effect of various P management practices on the productivity, chewing quality, nutrient uptake, P-use efficiencies on chewing tobacco. There is a dire need to reduce the P requirement for chewing tobacco (Nicotiana tabacum L.), as it is...
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| Format: | Article |
| Language: | English |
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Indian Council of Agricultural Research
2014-05-01
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| Series: | The Indian Journal of Agricultural Sciences |
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| Online Access: | https://epubs.icar.org.in/index.php/IJAgS/article/view/40472 |
| _version_ | 1797680482970763264 |
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| author | M KUMARESAN A V S R SWAMY V KRISHNAMURTHY P HARISHU KUMAR C C S RAO R ATHINARAYANAN |
| author_facet | M KUMARESAN A V S R SWAMY V KRISHNAMURTHY P HARISHU KUMAR C C S RAO R ATHINARAYANAN |
| author_sort | M KUMARESAN |
| collection | DOAJ |
| description | A field experiment was conducted during 2005-2009 to study the effect of various P management practices on the productivity, chewing quality, nutrient uptake, P-use efficiencies on chewing tobacco. There is a dire need to reduce the P requirement for chewing tobacco (Nicotiana tabacum L.), as it is costlier and scarce. First grade leaf yield (FGLY) and total cured leaf yield (TCLY) with 50,75 and 100% recommended P with or without phospho bacteria (PSB) are comparable. The FGLY and TCLY increase varied between 7 to 20 % and 19 to 30 % respectively over no P. Phosphorus application irrespective of the levels improved the chewability (Score >60) over no P. The uptake of NPK and soil available P improved with levels of P with or without PSB over no P. Phosphorus application every year improved the soil available P. The P balance showed loss of P in all the treatments. P-use efficiency (39.5- 42.3 kg/kg), P-uptake efficiency (0.12 - 0.15 kg/kg) , agronomic efficiency (0.12 - 0.15 kg/kg) , recovery efficiency (7.27 7.55%) and partial factor productivity (138 - 148 kg/kg) was higher at 50% P with or without PSB. Physiological efficiency was higher at 100% P +PSB (315 kg/ha) in the first year and 50% P (395.3 kg/ha) in the second year. Net returns and B:C ratio with 100% P was comparable with 75 and 50 % P with or without PSB. It was concluded that 50% recommended P (22 kg P/ha) would be sufficient for higher yield , net returns, better leaf chemistry and P-use efficiency. |
| first_indexed | 2024-03-11T23:30:40Z |
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| institution | Directory Open Access Journal |
| issn | 0019-5022 2394-3319 |
| language | English |
| last_indexed | 2024-03-11T23:30:40Z |
| publishDate | 2014-05-01 |
| publisher | Indian Council of Agricultural Research |
| record_format | Article |
| series | The Indian Journal of Agricultural Sciences |
| spelling | doaj.art-44feac94770d436880a3dc4938e722db2023-09-20T10:02:40ZengIndian Council of Agricultural ResearchThe Indian Journal of Agricultural Sciences0019-50222394-33192014-05-0184510.56093/ijas.v84i5.40472Effect of Phosphorus on the leaf yield, nutrient uptake and P-use efficiencies of sun cured chewing tobacco (Nicotiana tobacum) grown in Tamil NaduM KUMARESAN0A V S R SWAMY1V KRISHNAMURTHY2P HARISHU KUMAR3C C S RAO4R ATHINARAYANAN5Central Tobacco Research Institute, Vedasandur, Tamil Nadu 624 710Central Tobacco Research Institute, Vedasandur, Tamil Nadu 624 710Central Tobacco Research Institute, Vedasandur, Tamil Nadu 624 710Central Tobacco Research Institute, Vedasandur, Tamil Nadu 624 710Central Tobacco Research Institute, Vedasandur, Tamil Nadu 624 710Central Tobacco Research Institute, Vedasandur, Tamil Nadu 624 710A field experiment was conducted during 2005-2009 to study the effect of various P management practices on the productivity, chewing quality, nutrient uptake, P-use efficiencies on chewing tobacco. There is a dire need to reduce the P requirement for chewing tobacco (Nicotiana tabacum L.), as it is costlier and scarce. First grade leaf yield (FGLY) and total cured leaf yield (TCLY) with 50,75 and 100% recommended P with or without phospho bacteria (PSB) are comparable. The FGLY and TCLY increase varied between 7 to 20 % and 19 to 30 % respectively over no P. Phosphorus application irrespective of the levels improved the chewability (Score >60) over no P. The uptake of NPK and soil available P improved with levels of P with or without PSB over no P. Phosphorus application every year improved the soil available P. The P balance showed loss of P in all the treatments. P-use efficiency (39.5- 42.3 kg/kg), P-uptake efficiency (0.12 - 0.15 kg/kg) , agronomic efficiency (0.12 - 0.15 kg/kg) , recovery efficiency (7.27 7.55%) and partial factor productivity (138 - 148 kg/kg) was higher at 50% P with or without PSB. Physiological efficiency was higher at 100% P +PSB (315 kg/ha) in the first year and 50% P (395.3 kg/ha) in the second year. Net returns and B:C ratio with 100% P was comparable with 75 and 50 % P with or without PSB. It was concluded that 50% recommended P (22 kg P/ha) would be sufficient for higher yield , net returns, better leaf chemistry and P-use efficiency.https://epubs.icar.org.in/index.php/IJAgS/article/view/40472Chewing tobaccoFirst grade leaf yieldPhosphorusP-use efficiencies |
| spellingShingle | M KUMARESAN A V S R SWAMY V KRISHNAMURTHY P HARISHU KUMAR C C S RAO R ATHINARAYANAN Effect of Phosphorus on the leaf yield, nutrient uptake and P-use efficiencies of sun cured chewing tobacco (Nicotiana tobacum) grown in Tamil Nadu The Indian Journal of Agricultural Sciences Chewing tobacco First grade leaf yield Phosphorus P-use efficiencies |
| title | Effect of Phosphorus on the leaf yield, nutrient uptake and P-use efficiencies of sun cured chewing tobacco (Nicotiana tobacum) grown in Tamil Nadu |
| title_full | Effect of Phosphorus on the leaf yield, nutrient uptake and P-use efficiencies of sun cured chewing tobacco (Nicotiana tobacum) grown in Tamil Nadu |
| title_fullStr | Effect of Phosphorus on the leaf yield, nutrient uptake and P-use efficiencies of sun cured chewing tobacco (Nicotiana tobacum) grown in Tamil Nadu |
| title_full_unstemmed | Effect of Phosphorus on the leaf yield, nutrient uptake and P-use efficiencies of sun cured chewing tobacco (Nicotiana tobacum) grown in Tamil Nadu |
| title_short | Effect of Phosphorus on the leaf yield, nutrient uptake and P-use efficiencies of sun cured chewing tobacco (Nicotiana tobacum) grown in Tamil Nadu |
| title_sort | effect of phosphorus on the leaf yield nutrient uptake and p use efficiencies of sun cured chewing tobacco nicotiana tobacum grown in tamil nadu |
| topic | Chewing tobacco First grade leaf yield Phosphorus P-use efficiencies |
| url | https://epubs.icar.org.in/index.php/IJAgS/article/view/40472 |
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