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<p>This study evaluates the effects of different irrigation techniques (subsurface drip irrigation (SSDI), surface drip irrigation (SDI), and check basin irrigation (CBI)) on spring sugarcane-based intercropping systems in the Indo-Gangetic Plains of India. The research was conducted at Punjab Agricultural University, Regional Research Station, Faridkot, during 2022–23 and 2023–24 cropping seasons. Sugarcane was planted in paired row trenches at 120:30&#xa0;cm spacing. Ten treatments were evaluated: (sugarcane + okra) with SSDI, sugarcane with SSDI + okra with SDI, (sugarcane + green gram) with SSDI, sugarcane with SSDI + green gram with SDI, sugarcane + okra and sugarcane + green gram with CBI, sole crops of sugarcane/okra/green gram with CBI, and sole crop of sugarcane with SSDI. The study found that sugarcane growth and yield attributes—plant height, tiller population, number of millable canes (NMC), cane length, cane diameter, and internodal length—along with juice quality parameters such as brix, sucrose, purity, and commercial cane sugar (CCS%) were not significantly influenced by treatments. Among intercropped systems, T<sub>1</sub> (sugarcane + okra with SSDI) yielded the highest cane equivalent yield (149.5 and 107.8 t ha⁻<sup>1</sup>), land equivalent ratio (1.77 and 1.59), and area time equivalent ratio (1.23 and 1.20) in both years. T<sub>1</sub> also achieved the highest okra fruit yield (8.11 and 7.09 t ha⁻<sup>1</sup>), while T<sub>3</sub> (sugarcane + green gram with SSDI) recorded superior moong seed and biological yields. Root length density (RLD) was higher in check basin-irrigated treatments in the 0–15&#xa0;cm soil layer, while drip-irrigated treatments performed better at greater depths. Economically, (sugarcane + okra with SSDI) provided the highest gross returns (Rs. 470.4 and 410.4 × 10<sup>3</sup>&#xa0;ha<sup>−1</sup>) and net returns (Rs. 310.3 and 307.8 × 10<sup>3</sup>&#xa0;ha<sup>−1</sup>) across both years, with the best B/C ratio (1.94 and 3.00). Overall, SSDI systems enhanced crop performance and profitability in sugarcane-based intercropping systems. Okra emerged as a better intercrop for spring sugarcane, compared to green gram.</p>

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Comparative Analysis of Irrigation Techniques on the Productivity of Spring Sugarcane-based Intercropping Systems in Indo-Gangetic Plains of India

  • 期刊论文

  • 发表日期：

    2025年7月3日

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  • V. Anjaly,
  • Kuldeep Singh,
  • Prinka Goyal

摘要

This study evaluates the effects of different irrigation techniques (subsurface drip irrigation (SSDI), surface drip irrigation (SDI), and check basin irrigation (CBI)) on spring sugarcane-based intercropping systems in the Indo-Gangetic Plains of India. The research was conducted at Punjab Agricultural University, Regional Research Station, Faridkot, during 2022–23 and 2023–24 cropping seasons. Sugarcane was planted in paired row trenches at 120:30 cm spacing. Ten treatments were evaluated: (sugarcane + okra) with SSDI, sugarcane with SSDI + okra with SDI, (sugarcane + green gram) with SSDI, sugarcane with SSDI + green gram with SDI, sugarcane + okra and sugarcane + green gram with CBI, sole crops of sugarcane/okra/green gram with CBI, and sole crop of sugarcane with SSDI. The study found that sugarcane growth and yield attributes—plant height, tiller population, number of millable canes (NMC), cane length, cane diameter, and internodal length—along with juice quality parameters such as brix, sucrose, purity, and commercial cane sugar (CCS%) were not significantly influenced by treatments. Among intercropped systems, T1 (sugarcane + okra with SSDI) yielded the highest cane equivalent yield (149.5 and 107.8 t ha⁻1), land equivalent ratio (1.77 and 1.59), and area time equivalent ratio (1.23 and 1.20) in both years. T1 also achieved the highest okra fruit yield (8.11 and 7.09 t ha⁻1), while T3 (sugarcane + green gram with SSDI) recorded superior moong seed and biological yields. Root length density (RLD) was higher in check basin-irrigated treatments in the 0–15 cm soil layer, while drip-irrigated treatments performed better at greater depths. Economically, (sugarcane + okra with SSDI) provided the highest gross returns (Rs. 470.4 and 410.4 × 103 ha−1) and net returns (Rs. 310.3 and 307.8 × 103 ha−1) across both years, with the best B/C ratio (1.94 and 3.00). Overall, SSDI systems enhanced crop performance and profitability in sugarcane-based intercropping systems. Okra emerged as a better intercrop for spring sugarcane, compared to green gram.