Kamdi, P J and Kale, S and Ajith, S and Garg, K K and Rakesh, S and Janila, P and Singh, R and Sawargaonkar, G L (2026) Statistical modeling confirms the synergy of paired row planting and varieties in boosting groundnut yield, water productivity and economic returns. Plant Production Science. pp. 1-19. ISSN 1343-943X
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Abstract
Climate change and poor crop management threaten groundnut productivity in the semi-arid tropics (SATs). To address this, a field experiment was conducted at ICRISAT in Hyderabad, India, during 2016–17 and 2017–18. The study used two prevalent groundnut varieties, ICGV91114 and ICGV00351. It evaluated four paired-row (PR) systems with different planting geometries: PR1-20:20 cm/40 cm × 10 cm; PR2-25:25 cm/50 cm × 10 cm; PR3-20:20 cm/25 cm × 10 cm; PR4-15:15 cm/22.5 cm × 10 cm, along with the standard spacing PR5-30 cm × 10 cm. Results showed that ICGV00351 outperformed ICGV91114 in both years. Among planting geometry, pod yield, economic water productivity, and profitability were higher in PR2 than PR1. Similarly, the highest average soil moisture was recorded in PR2 i.e. 1.87–2.01 cm in the 0–30 cm soil depth in both years. This enhanced soil moisture in PR2 improved nutrient availability and uptake, resulting in higher leaf area index, biomass yield, water productivity, and net returns. Bayesian probability and bivariate plots further confirmed that PR2 was the most promising planting geometry, followed by PR1, compared to the normal sowing method. A random forest model trained on above-ground available data can predict pod yield with greater accuracy at the 75th day after sowing in PR2. The findings highlight the potential of paired-row planting to improve groundnut productivity and resilience in SAT landscapes. However, collaborative efforts among governments, research institutions, community organisations, and farmers are essential to scale up paired-row planting for groundnuts, to increase productivity at the landscape level and thereby support the livelihoods of smallholder farmers.
| Item Type: | Article |
|---|---|
| Divisions: | Global Research Program - Accelerated Crop Improvement Global Research Program - Resilient Farm and Food Systems |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | Paired row planting, pod yield, economic water productivity, statistical modeling, semi-arid tropics, soil moisture content |
| Subjects: | Others > Semi-Arid Tropics Others > Crop Yield Mandate crops > Groundnut Others > Soil Science |
| Depositing User: | Mr Nagaraju T |
| Date Deposited: | 06 May 2026 03:15 |
| Last Modified: | 06 May 2026 03:15 |
| URI: | http://oar.icrisat.org/id/eprint/13617 |
| Official URL: | https://www.tandfonline.com/doi/full/10.1080/13439... |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | UNSPECIFIED |
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