Optimizing nutrient management for Kodo millet (Paspalum scrobiculatum L.) in the Alfisols of Southern India through modeling soil, plant, and fertilizer interactions
Abstract Balanced nutrition will be rewarding to profitable and sustainable yield of Kodo millet. In this context, soil test crop response (STCR) experiments on kodo millet were conducted from 2020 to 2022 to assess relationships between yield, soil, plant, and fertilizer nitrogen (N), phosphorus (P...
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Nature Portfolio
2024-12-01
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| Online Access: | https://doi.org/10.1038/s41598-024-83265-y |
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| author | Krishna Murthy Rangaiah Bhavya Nagaraju Govinda Kasturappa Basavaraja Pujari Kadappa Uday Kumar Sugaturu Narayanaswamy Mohamed Saqeebulla Hussain Sab Gangamrutha Godekere Veerabadraiah Sanjay Srivastava Pradip Dey |
| author_facet | Krishna Murthy Rangaiah Bhavya Nagaraju Govinda Kasturappa Basavaraja Pujari Kadappa Uday Kumar Sugaturu Narayanaswamy Mohamed Saqeebulla Hussain Sab Gangamrutha Godekere Veerabadraiah Sanjay Srivastava Pradip Dey |
| author_sort | Krishna Murthy Rangaiah |
| collection | DOAJ |
| description | Abstract Balanced nutrition will be rewarding to profitable and sustainable yield of Kodo millet. In this context, soil test crop response (STCR) experiments on kodo millet were conducted from 2020 to 2022 to assess relationships between yield, soil, plant, and fertilizer nitrogen (N), phosphorus (P), and potassium (K) and calibrate optimum nutrient doses for attaining yield targets. The Basic parameters, i.e., nutrient requirements, contributions of nutrients from fertilizers, soil, and organic manure were derived. The NPK nutrients required to produce one kg of grain yield were 0.049, 0.0047 and 0.035 kg, respectively, under the STCR NPK alone and 0.050, 0.0046 and 0.037 kg, respectively, under the STCR NPK + FYM approach. The STCR NPK + FYM approach for the targeted yield of 1700 kg ha–1 resulted in a higher grain yield (1710 kg ha–1), which was significantly greater than the general recommended dose and soil fertility rating approach. The developed STCR equations are valid, as the percent deviation of the grain yield from the targeted yield was within ± 10%. The implementation of the STCR approach not only surpassed the effects of the other fertilizer recommendation approaches in terms of grain yield but also increased NPK uptake, nutrient use efficiency and economic returns. |
| format | Article |
| id | doaj-art-b6be5bb37e0a458aac825453559acc23 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-b6be5bb37e0a458aac825453559acc232025-01-05T12:28:16ZengNature PortfolioScientific Reports2045-23222024-12-0114111510.1038/s41598-024-83265-yOptimizing nutrient management for Kodo millet (Paspalum scrobiculatum L.) in the Alfisols of Southern India through modeling soil, plant, and fertilizer interactionsKrishna Murthy Rangaiah0Bhavya Nagaraju1Govinda Kasturappa2Basavaraja Pujari Kadappa3Uday Kumar Sugaturu Narayanaswamy4Mohamed Saqeebulla Hussain Sab5Gangamrutha Godekere Veerabadraiah6Sanjay Srivastava7Pradip Dey8All India Coordinated Research Project on Soil Test Crop Response, University of Agricultural SciencesAll India Coordinated Research Project on Soil Test Crop Response, University of Agricultural SciencesAll India Coordinated Research Project on Soil Test Crop Response, University of Agricultural SciencesAll India Coordinated Research Project on Soil Test Crop Response, University of Agricultural SciencesAll India Coordinated Research Project on Soil Test Crop Response, University of Agricultural SciencesAll India Coordinated Research Project on Soil Test Crop Response, University of Agricultural SciencesAll India Coordinated Research Project on Soil Test Crop Response, University of Agricultural SciencesAll India Coordinated Research Project on Soil Test Crop Response, ICAR-Indian Institute of Soil ScienceIndian Council of Agricultural Research-Agricultural Technology Application Research InstituteAbstract Balanced nutrition will be rewarding to profitable and sustainable yield of Kodo millet. In this context, soil test crop response (STCR) experiments on kodo millet were conducted from 2020 to 2022 to assess relationships between yield, soil, plant, and fertilizer nitrogen (N), phosphorus (P), and potassium (K) and calibrate optimum nutrient doses for attaining yield targets. The Basic parameters, i.e., nutrient requirements, contributions of nutrients from fertilizers, soil, and organic manure were derived. The NPK nutrients required to produce one kg of grain yield were 0.049, 0.0047 and 0.035 kg, respectively, under the STCR NPK alone and 0.050, 0.0046 and 0.037 kg, respectively, under the STCR NPK + FYM approach. The STCR NPK + FYM approach for the targeted yield of 1700 kg ha–1 resulted in a higher grain yield (1710 kg ha–1), which was significantly greater than the general recommended dose and soil fertility rating approach. The developed STCR equations are valid, as the percent deviation of the grain yield from the targeted yield was within ± 10%. The implementation of the STCR approach not only surpassed the effects of the other fertilizer recommendation approaches in terms of grain yield but also increased NPK uptake, nutrient use efficiency and economic returns.https://doi.org/10.1038/s41598-024-83265-yTargeted yieldAlfisolsBalanced nutritionKodo milletNutrient use efficiencyFertilizer prescription equation |
| spellingShingle | Krishna Murthy Rangaiah Bhavya Nagaraju Govinda Kasturappa Basavaraja Pujari Kadappa Uday Kumar Sugaturu Narayanaswamy Mohamed Saqeebulla Hussain Sab Gangamrutha Godekere Veerabadraiah Sanjay Srivastava Pradip Dey Optimizing nutrient management for Kodo millet (Paspalum scrobiculatum L.) in the Alfisols of Southern India through modeling soil, plant, and fertilizer interactions Scientific Reports Targeted yield Alfisols Balanced nutrition Kodo millet Nutrient use efficiency Fertilizer prescription equation |
| title | Optimizing nutrient management for Kodo millet (Paspalum scrobiculatum L.) in the Alfisols of Southern India through modeling soil, plant, and fertilizer interactions |
| title_full | Optimizing nutrient management for Kodo millet (Paspalum scrobiculatum L.) in the Alfisols of Southern India through modeling soil, plant, and fertilizer interactions |
| title_fullStr | Optimizing nutrient management for Kodo millet (Paspalum scrobiculatum L.) in the Alfisols of Southern India through modeling soil, plant, and fertilizer interactions |
| title_full_unstemmed | Optimizing nutrient management for Kodo millet (Paspalum scrobiculatum L.) in the Alfisols of Southern India through modeling soil, plant, and fertilizer interactions |
| title_short | Optimizing nutrient management for Kodo millet (Paspalum scrobiculatum L.) in the Alfisols of Southern India through modeling soil, plant, and fertilizer interactions |
| title_sort | optimizing nutrient management for kodo millet paspalum scrobiculatum l in the alfisols of southern india through modeling soil plant and fertilizer interactions |
| topic | Targeted yield Alfisols Balanced nutrition Kodo millet Nutrient use efficiency Fertilizer prescription equation |
| url | https://doi.org/10.1038/s41598-024-83265-y |
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