Long-term nutrient management affects nitrogen dynamics and crop yield in rice (Oryza sativa)-wheat (Triticum aestivum) system
The present study was conducted to assess the in-season dynamics of nitrogen (N) in an Inceptisol under long-term fertilizer management in rice (Oryza sativa L.)-wheat (Triticum aestivum L.) cropping system at Punjab Agricultural University, Ludhiana. The treatments comprised combination of chemical...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Indian Council of Agricultural Research
2021-09-01
|
| Series: | The Indian Journal of Agricultural Sciences |
| Subjects: | |
| Online Access: | https://epubs.icar.org.in/index.php/IJAgS/article/view/115807 |
| _version_ | 1828034053871239168 |
|---|---|
| author | AJAY SHARMA G S DHERI SAT PAL SAINI |
| author_facet | AJAY SHARMA G S DHERI SAT PAL SAINI |
| author_sort | AJAY SHARMA |
| collection | DOAJ |
| description | The present study was conducted to assess the in-season dynamics of nitrogen (N) in an Inceptisol under long-term fertilizer management in rice (Oryza sativa L.)-wheat (Triticum aestivum L.) cropping system at Punjab Agricultural University, Ludhiana. The treatments comprised combination of chemical fertilizers (100% NPK and 150% NPK) and organic manures (100% NPK+FYM, 100% NPK+GM and 100% NPK+SI) along with unfertilized control laid out in randomized complete block design with three replications. Soil samples were collected at 30, 60, 90 and 120 days after transplanting/sowing and at harvest of rice and wheat, respectively and analysed for available N, ammonical N, nitrate N and total N. Plant samples were also collected at corresponding time period to determine the N content, uptake and biomass. Application of 100% NPK+FYM had significantly higher contents of different N forms during growth of both rice and wheat compared to rest of the treatments. At harvest of rice, combined use of 100% NPK and FYM improved soil available N and total N over 100% NPK by 20 and 22%; respectively. Whereas at wheat harvest; the increase in available and total N amounted to 29 and 23%, respectively due to corresponding treatments. The gradual decrease in N forms was observed till crop harvest. The grain and straw yield, content and total uptake of N by rice and wheat increased significantly under the integrated fertilizer management. Integrated nutrient management practice improved the relative proportion of plant-available N forms and achieved higher rice-wheat productivity. |
| first_indexed | 2024-04-10T15:28:15Z |
| format | Article |
| id | doaj.art-9a25e74a7f014a8196c693d3a1f33042 |
| institution | Directory Open Access Journal |
| issn | 0019-5022 2394-3319 |
| language | English |
| last_indexed | 2024-04-10T15:28:15Z |
| publishDate | 2021-09-01 |
| publisher | Indian Council of Agricultural Research |
| record_format | Article |
| series | The Indian Journal of Agricultural Sciences |
| spelling | doaj.art-9a25e74a7f014a8196c693d3a1f330422023-02-14T07:57:38ZengIndian Council of Agricultural ResearchThe Indian Journal of Agricultural Sciences0019-50222394-33192021-09-0191810.56093/ijas.v91i8.115807Long-term nutrient management affects nitrogen dynamics and crop yield in rice (Oryza sativa)-wheat (Triticum aestivum) systemAJAY SHARMA0G S DHERI1SAT PAL SAINI2Punjab Agricultural University, Ludhiana, Punjab 141 004, IndiaPunjab Agricultural University, Ludhiana, Punjab 141 004, IndiaPunjab Agricultural University, Ludhiana, Punjab 141 004, IndiaThe present study was conducted to assess the in-season dynamics of nitrogen (N) in an Inceptisol under long-term fertilizer management in rice (Oryza sativa L.)-wheat (Triticum aestivum L.) cropping system at Punjab Agricultural University, Ludhiana. The treatments comprised combination of chemical fertilizers (100% NPK and 150% NPK) and organic manures (100% NPK+FYM, 100% NPK+GM and 100% NPK+SI) along with unfertilized control laid out in randomized complete block design with three replications. Soil samples were collected at 30, 60, 90 and 120 days after transplanting/sowing and at harvest of rice and wheat, respectively and analysed for available N, ammonical N, nitrate N and total N. Plant samples were also collected at corresponding time period to determine the N content, uptake and biomass. Application of 100% NPK+FYM had significantly higher contents of different N forms during growth of both rice and wheat compared to rest of the treatments. At harvest of rice, combined use of 100% NPK and FYM improved soil available N and total N over 100% NPK by 20 and 22%; respectively. Whereas at wheat harvest; the increase in available and total N amounted to 29 and 23%, respectively due to corresponding treatments. The gradual decrease in N forms was observed till crop harvest. The grain and straw yield, content and total uptake of N by rice and wheat increased significantly under the integrated fertilizer management. Integrated nutrient management practice improved the relative proportion of plant-available N forms and achieved higher rice-wheat productivity.https://epubs.icar.org.in/index.php/IJAgS/article/view/115807Long-termNitrogenRiceWheatYield |
| spellingShingle | AJAY SHARMA G S DHERI SAT PAL SAINI Long-term nutrient management affects nitrogen dynamics and crop yield in rice (Oryza sativa)-wheat (Triticum aestivum) system The Indian Journal of Agricultural Sciences Long-term Nitrogen Rice Wheat Yield |
| title | Long-term nutrient management affects nitrogen dynamics and crop yield in rice (Oryza sativa)-wheat (Triticum aestivum) system |
| title_full | Long-term nutrient management affects nitrogen dynamics and crop yield in rice (Oryza sativa)-wheat (Triticum aestivum) system |
| title_fullStr | Long-term nutrient management affects nitrogen dynamics and crop yield in rice (Oryza sativa)-wheat (Triticum aestivum) system |
| title_full_unstemmed | Long-term nutrient management affects nitrogen dynamics and crop yield in rice (Oryza sativa)-wheat (Triticum aestivum) system |
| title_short | Long-term nutrient management affects nitrogen dynamics and crop yield in rice (Oryza sativa)-wheat (Triticum aestivum) system |
| title_sort | long term nutrient management affects nitrogen dynamics and crop yield in rice oryza sativa wheat triticum aestivum system |
| topic | Long-term Nitrogen Rice Wheat Yield |
| url | https://epubs.icar.org.in/index.php/IJAgS/article/view/115807 |
| work_keys_str_mv | AT ajaysharma longtermnutrientmanagementaffectsnitrogendynamicsandcropyieldinriceoryzasativawheattriticumaestivumsystem AT gsdheri longtermnutrientmanagementaffectsnitrogendynamicsandcropyieldinriceoryzasativawheattriticumaestivumsystem AT satpalsaini longtermnutrientmanagementaffectsnitrogendynamicsandcropyieldinriceoryzasativawheattriticumaestivumsystem |