Study on Irrigation and Fertigation Scheduling for Sustainable Sugarcane Initiative (SSI) through Subsurface Drip Irrigation

Because of the high yield with minimal input, the Sustainable Sugarcane Initiative (SSI) under Sub Surface Drip Irrigation (SSDI) is gaining popularity among farmers. Even if farmers are aware of the benefits of SSI under SSDI, the formulation of an effective irrigation and fertigation schedule is critical. Three years of field trials were conducted at the Agricultural Research Station in Bhavanisagar to determine the best irrigation and fertigation schedule for SSI in the Western Agroclimatic Zone. The experiment was conducted in a three-replication randomised block design. Six treatments were SSDI with three irrigation regimes of 100, 80, and 60% pan evaporation and two fertigation levels of 100 and 75 percent of recommended N & K through fertiga, and two treatments were surface drip irrigation (SDI) with 100 percent pan evaporation (PE) + 100 percent RD and 100 percent PE + 75 percent RD of N&K through fertiga. SSDI with 60% PE + 100% RD of N&K through fertigation had lower water use (1004 mm) and greater WUE (113 kg/ha mm), according to the findings of this study. SSDI with 100 percent PE + 100 percent RD of N&K through fertigation and surface drip irrigation with 100 percent PE + 100 percent RD of N&K through fertigation produced much greater and comparable sugarcane yields (148 t/ha). SSDI with 100 percent PE + 100 percent RD of N&K through fertigation treatment had a greater net return (Rs. 2,09,405 per ha) and B:C ratio (2.6).

Author (S) Details

M. Manikandan
Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Kumulur – 621 712, Tamil Nadu, India.

G. Thiyagarajan
Water Technology Centre, Tamil Nadu Agricultural University, Coimbatore – 641 003, Tamil Nadu, India.

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