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<p>Hill direct seeded rice endorses the time and labour economy, offers effective aeration, minimizing the chances of pest occurrences, and fostering favorable and sustained long-term development. In this context, the study was intended to develop a tractor-drawn eight-row precision pneumatic hill drop planter cum fertilizer drill for planting 2 ± 1 rice seeds per hill at 250 × 250&#xa0;mm spacing. It had rotating drum type metering device which worked as suction chamber from inside. The outer surface of drum possessed ten pairs of orifices for each row of planter. The planter comprised of seed agitating devices, cut-off plates, spill out chamber and seed scraping devices for enhanced performance. Laboratory evaluation was conducted at three orifice diameters (1.0, 1.5 and 2.0&#xa0;mm) and four suction pressures (1, 2, 3 and 4&#xa0;kPa) at 0.83&#xa0;m/s forward speed of sticky belt for response surface optimization. The criterion was to maximize quality seeding and seeding efficiency with minimum over seeding. The orifice diameter of 1.5&#xa0;mm and suction pressure of 4&#xa0;kPa was found suitable with 80% quality seeding and 93% seeding efficiency. The recommended dose of fertilizer was achieved at 75% opening of fertilizer hopper sliding gate. The seed rate, field capacity and field efficiency was recorded as 14.20&#xa0;kg/ha, 0.42&#xa0;ha/h and 70.36%, respectively during the field evaluation. The cost of operation was ₹ 983.74/ha. Hence, the developed planter was found suitable for rice hill dropping with fertilizer placement at the optimized levels of selected parameters.</p>

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Development of precision pneumatic hill drop planter and fertilizer drill for direct seeded rice: a response surface modelling approach

  • 期刊论文

  • 发表日期：

    2025年4月7日

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  • M. L. Jadhav,
  • B. M. Nandede,
  • M. Din,
  • M. H. Jagadale,
  • K. N. Agrawal,
  • R. R. Potdar

摘要

Hill direct seeded rice endorses the time and labour economy, offers effective aeration, minimizing the chances of pest occurrences, and fostering favorable and sustained long-term development. In this context, the study was intended to develop a tractor-drawn eight-row precision pneumatic hill drop planter cum fertilizer drill for planting 2 ± 1 rice seeds per hill at 250 × 250 mm spacing. It had rotating drum type metering device which worked as suction chamber from inside. The outer surface of drum possessed ten pairs of orifices for each row of planter. The planter comprised of seed agitating devices, cut-off plates, spill out chamber and seed scraping devices for enhanced performance. Laboratory evaluation was conducted at three orifice diameters (1.0, 1.5 and 2.0 mm) and four suction pressures (1, 2, 3 and 4 kPa) at 0.83 m/s forward speed of sticky belt for response surface optimization. The criterion was to maximize quality seeding and seeding efficiency with minimum over seeding. The orifice diameter of 1.5 mm and suction pressure of 4 kPa was found suitable with 80% quality seeding and 93% seeding efficiency. The recommended dose of fertilizer was achieved at 75% opening of fertilizer hopper sliding gate. The seed rate, field capacity and field efficiency was recorded as 14.20 kg/ha, 0.42 ha/h and 70.36%, respectively during the field evaluation. The cost of operation was ₹ 983.74/ha. Hence, the developed planter was found suitable for rice hill dropping with fertilizer placement at the optimized levels of selected parameters.