Optimization of the Design and Operational Parameters of Planter for Vegetable Pigeon Pea (Cajanus Cajan L. Millsp.) Seed

Abstract

Precision machinery is one of the most important technology in the recent decades in respect to judicious use of resources. In precision machinery one of the most important machine is seeding machines because it picks the seed from the hopper and individually placed in field. An effort has been made to optimize the operational (forward speed and vacuum pressure) and design (nozzle diameter) parameters of the precision seed drill. For optimizing the metering mechanism three parameters i.e. nozzle diameters: 2.00, 2.50, 3.00, 3.50 and 4.0 mm; forward speed: 0.27, 0.55, 0.83, 1.11 and 1.38 m/s and vacuum pressure: 19.33, 39.32, 43.98, 58.64 and 68.63 kPa were selected. The seed to seed spacing was 300 mm. The RSM technique was used to optimize the above parameters. The machine was evaluated on the basis performance parameters like miss index, multiple index, quality of feed index and precision. The optimum value for forward speed, vacuum pressure and the nozzle holes diameter was 0.83 m/s, 43.98 kPa and 3.50 mm, respectively. The most important variable that governs planting phenomenon for vegetable pigeon pea seed is nozzle diameter as well as vacuum pressure.

Design and Testing of Seed Push Wheel for High-Speed Precision Seed Metering Device for Corn With Internal Seed Filling and Positive Pressure Airflow

“…Factors affecting corn yields are climate, soil conditions, seeds, planting techniques and field management techniques, among which seeding quality is one of the most important influencing factors. In order to improve the seeding quality of mechanized operations, over the years, the precision seed discharger (Karayel et al, 2022;Kumar-Patel et al, 2021;Ospanova et al, 2024) has been the focus of research and hot spots of single grain (precision) seeding machine, while for highspeed operations (>9 km/h) the research of smooth seeding mechanism is relatively weak, the seed guide, seeding link has become a constraint on the quality of high-speed sowing operations to further improve the "short board", there is an urgent need to develop the high-speed operation of the smooth seeding mechanism (Liao et al, 2020). Xin Currently, improving corn seed spacing uniformity typically involves lowering the height of seed casting.…”