Sowing time matters: Advancing rice and wheat sowing shape system productivity
Timely sowing is a decisive factor shaping the productivity of rice–wheat systems (RWS) across the eastern Indo-Gangetic Plains, where delays in Kharif rice often cascade into late Rabi wheat planting and increased exposure to terminal heat. This study examined how shifts in sowing windows influence...
| Autores principales: | , , , , , , , , , , , , , , , , , |
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| Formato: | Artículo preliminar |
| Lenguaje: | Inglés |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/178987 |
| _version_ | 1855542797722976256 |
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| author | Srivastava, Amit Patil, Vikram Peramaiyan, Panneerselvam Kumari, Tanu Munshi, Sugandha Veettil Chellattan, Prakashan Urfels, Anton Poonia, Shispal Kumar, Anurag Kumar, Pankaj Ignatius, Moben Challa, Kranthi Kumar Ajay, Anurag Sohane, R. K. Yadav, Anil Kumar Sherpa, Sonam Kumar, Virender McDonald, Andrew |
| author_browse | Ajay, Anurag Challa, Kranthi Kumar Ignatius, Moben Kumar, Anurag Kumar, Pankaj Kumar, Virender Kumari, Tanu McDonald, Andrew Munshi, Sugandha Patil, Vikram Peramaiyan, Panneerselvam Poonia, Shispal Sherpa, Sonam Sohane, R. K. Srivastava, Amit Urfels, Anton Veettil Chellattan, Prakashan Yadav, Anil Kumar |
| author_facet | Srivastava, Amit Patil, Vikram Peramaiyan, Panneerselvam Kumari, Tanu Munshi, Sugandha Veettil Chellattan, Prakashan Urfels, Anton Poonia, Shispal Kumar, Anurag Kumar, Pankaj Ignatius, Moben Challa, Kranthi Kumar Ajay, Anurag Sohane, R. K. Yadav, Anil Kumar Sherpa, Sonam Kumar, Virender McDonald, Andrew |
| author_sort | Srivastava, Amit |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Timely sowing is a decisive factor shaping the productivity of rice–wheat systems (RWS) across the eastern Indo-Gangetic Plains, where delays in Kharif rice often cascade into late Rabi wheat planting and increased exposure to terminal heat. This study examined how shifts in sowing windows influence crop and system-level yields in seven districts of Bihar using two years of field data (2022–23 and 2023–24), satellite-derived planting dates, NDVI dynamics, and multivariate statistical analyses. Early sowing consistently improved yields of both crops, by 0.7–0.9 t/ha in rice, 0.5–0.6 t/ha in wheat and increased total system productivity by roughly 1.4 t/ha. Temperature analysis showed that late-sown wheat was exposed to 12–15 days with mean temperatures above 30°C during grain filling, aligning with yield declines of about 0.05 t/ha per day of sowing delay beyond 15 November. PCA revealed that early sowing reduced variability across LDV, MDV and SDV , while late sowing increased dispersion, particularly in
LDV . MANOVA identified sowing time as the strongest driver influencing satellite-based NDVImax and yield, surpassing district, variety, or year effects. Satellite-derived planting maps further confirmed the spread of late sowing across districts in 2023, reinforcing its role in system-wide productivity losses. Building on these insights, a minimum viable product (MVP) advisory framework, transitioning from verbal advisories to the AgDay digital decision- support platform was piloted to promote timely sowing. The study provides actionable thresholds and systematic evidence to support scalable, climate-smart advisories capable of strengthening the resilience of rice–wheat systems under rising temperature risks. |
| format | Artículo preliminar |
| id | CGSpace178987 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| record_format | dspace |
| spelling | CGSpace1789872025-12-19T02:18:02Z Sowing time matters: Advancing rice and wheat sowing shape system productivity Srivastava, Amit Patil, Vikram Peramaiyan, Panneerselvam Kumari, Tanu Munshi, Sugandha Veettil Chellattan, Prakashan Urfels, Anton Poonia, Shispal Kumar, Anurag Kumar, Pankaj Ignatius, Moben Challa, Kranthi Kumar Ajay, Anurag Sohane, R. K. Yadav, Anil Kumar Sherpa, Sonam Kumar, Virender McDonald, Andrew rice wheat cropping systems sowing yields sowing date digital innovation frameworks climate smart agriculture climate resilience Timely sowing is a decisive factor shaping the productivity of rice–wheat systems (RWS) across the eastern Indo-Gangetic Plains, where delays in Kharif rice often cascade into late Rabi wheat planting and increased exposure to terminal heat. This study examined how shifts in sowing windows influence crop and system-level yields in seven districts of Bihar using two years of field data (2022–23 and 2023–24), satellite-derived planting dates, NDVI dynamics, and multivariate statistical analyses. Early sowing consistently improved yields of both crops, by 0.7–0.9 t/ha in rice, 0.5–0.6 t/ha in wheat and increased total system productivity by roughly 1.4 t/ha. Temperature analysis showed that late-sown wheat was exposed to 12–15 days with mean temperatures above 30°C during grain filling, aligning with yield declines of about 0.05 t/ha per day of sowing delay beyond 15 November. PCA revealed that early sowing reduced variability across LDV, MDV and SDV , while late sowing increased dispersion, particularly in LDV . MANOVA identified sowing time as the strongest driver influencing satellite-based NDVImax and yield, surpassing district, variety, or year effects. Satellite-derived planting maps further confirmed the spread of late sowing across districts in 2023, reinforcing its role in system-wide productivity losses. Building on these insights, a minimum viable product (MVP) advisory framework, transitioning from verbal advisories to the AgDay digital decision- support platform was piloted to promote timely sowing. The study provides actionable thresholds and systematic evidence to support scalable, climate-smart advisories capable of strengthening the resilience of rice–wheat systems under rising temperature risks. 2025 2025-12-18T05:55:40Z 2025-12-18T05:55:40Z Working Paper https://hdl.handle.net/10568/178987 en Open Access application/pdf Srivastava, Amit, Vikram Patil, Panneerselvam Peramaiyan, Tanu Kumari, Sugandha Munshi, Prakashan Veettil Chellattan, Anton Urfels, Shispal Poonia, Anurag Kumar, Pankaj Kumar, Moben Ignatius, Kranthi Kumar Challa, Anurag Ajay, R. K. Sohane, Anil Kumar Yadav, Sonam Sherpa, Virender Kumar, Andrew McDonald (2025). Sowing time matters: Advancing rice and wheat sowing shape system productivity. International Rice Research Institute. 24 p. |
| spellingShingle | rice wheat cropping systems sowing yields sowing date digital innovation frameworks climate smart agriculture climate resilience Srivastava, Amit Patil, Vikram Peramaiyan, Panneerselvam Kumari, Tanu Munshi, Sugandha Veettil Chellattan, Prakashan Urfels, Anton Poonia, Shispal Kumar, Anurag Kumar, Pankaj Ignatius, Moben Challa, Kranthi Kumar Ajay, Anurag Sohane, R. K. Yadav, Anil Kumar Sherpa, Sonam Kumar, Virender McDonald, Andrew Sowing time matters: Advancing rice and wheat sowing shape system productivity |
| title | Sowing time matters: Advancing rice and wheat sowing shape system productivity |
| title_full | Sowing time matters: Advancing rice and wheat sowing shape system productivity |
| title_fullStr | Sowing time matters: Advancing rice and wheat sowing shape system productivity |
| title_full_unstemmed | Sowing time matters: Advancing rice and wheat sowing shape system productivity |
| title_short | Sowing time matters: Advancing rice and wheat sowing shape system productivity |
| title_sort | sowing time matters advancing rice and wheat sowing shape system productivity |
| topic | rice wheat cropping systems sowing yields sowing date digital innovation frameworks climate smart agriculture climate resilience |
| url | https://hdl.handle.net/10568/178987 |
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