Production of Soil Block Seedlings in Plug Trays for Mechanical Transplanting

Dihingia, Pramod Chandra; Gautam, Kumar; Sarma, Pallab Kumar; Neog, Prasanta

doi:10.1080/19315260.2017.1319889

Cited by 10 publications

(4 citation statements)

References 19 publications

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“…Plugs automatic transplanting requires an adequate firmness and cohesion of the root plugs to avoid soil shattering when removed from tray cells [35]. Furthermore, plug soil should not break into small pieces when handled in the mechanical components of the transplanting machines in order to reduce transplantation stress [14,43]. Leek plug soil fell off completely when lifting a seedling out of the tray.…”

Section: Resultsmentioning

confidence: 99%

“…Although the success score with the needle gripper in the experiment was the same as with the two-finger gripper, needle gripper is not recommended when grasping leek plugs. Dihingia et al [43] found that initially compacting plug soil is a good compromise between seedling growth and force needed to lift up the plugs. In this trial, plug soil consisted of a potting mix of peat and perlite with a 70:30 ratio and did not completely filled up the tray cells.…”

Section: Resultsmentioning

confidence: 99%

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Design, Development and Testing of Feeding Grippers for Vegetable Plug Transplanters

et al. 2021

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Vegetable transplanting is an important and advantageous practice in vegetables production systems. In recent years, the development of vegetable transplanting tools has increased, as well as the interest for automatic and robotic transplanters. However, at present, the feeding of transplanting machines is often still performed by hand. This paper presents the design, development and testing of a needle gripper and a two-finger gripper for vegetable transplanting. Both grippers were self-designed and tested for picking, lifting and transplanting plug seedlings. Tests have been conducted on fennel (Foeniculum vulgare L.), leek (Allium ampeloprasum L.) chicory (Cichorium intybus L.) and lettuce (Lactuca sativa L.) seedlings to determine the impact that gripper typology might have on the further growth of plants after transplanting. The average success rate of the two-finger gripper in the transplanting experiment was 95% and of the needle gripper 81.75%, respectively. Although neither gripper typology affected the growth of the seedlings after transplanting, several design implications were identified in order to improve the performance of both grippers. Furthermore, the two-finger gripper is more reliable for lettuce and chicory, while the needle gripper requires root plugs with higher firmness and cohesion to prevent shattering.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Design, Development and Testing of Feeding Grippers for Vegetable Plug Transplanters

et al. 2021

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“…Mechanized transplanting can reduce labor intensity and production costs, which is conducive to ensuring food security and is significant in building a powerful agricultural country and promoting rural revitalization [2][3][4]. The mechanized transplanting process will inevitably produce plug seedling pot damage; the damage to the pot is not only related to the material's physical and mechanical properties but also to the impact load and the contact stress distribution during the transplanting process [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Study on Contact Stress Distribution Characteristics and Damage of Plug Seedlings Based on Flexible Pressure Sensor

Cui,

Li,

Zeng

et al. 2023

Sensors

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At present, there is a problem that the growth quality is reduced due to damage to the plug seedling pot during the transplanting process. In this study, the pressure distribution measurement system was used to measure the contact area of plug seedlings when they collided with the ground. The effects of seedling age and forward speed on the characteristics of contact stress distribution and potting damage were investigated through a single-factor experiment. The results were comprehensively considered based on the single-factor test, and the Box–Behnken test was used to optimize the design. The matrix loss rate was used as the evaluation index to determine the optimal parameter combination for transplanting: the tray specification was 72, the seedling age was 30 d, and the forward speed was 1.25 km·h−1. This study can provide a reference and technical support for further research on pot damage in plug seedling transplanting. The optimized parameters can provide practical guidance for reducing pot damage and improving growth quality during transplanting plug seedlings.

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“…et al, 2019). Coated seeds are characterized by the fact that the shape and size of the seeds changes significantly (Dihingia P.C. et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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The paper presents an analysis of the basic principles of formation, the properties and characteristics of a new modular energy tool, consisting of the energy and the technology modules. The purpose of this study is to assess the degree of impact of the throttle in the hydraulic line, connecting the cavity of the hydraulic cylinder, upon the controllability of the modular power tool with a mounted plough during the movement of the ploughing aggregate on the headland. As a result of the conducted tests, it was proved that increasing the controllability of the movement of the aggregate on the basis of a mobile power tool is possible by throttling one of the hydraulic cylinders that limit the mutual reciprocal rotation of the modules in a horizontal plane. Installation of the throttle modular power tool on the limiting hydraulic cylinder with a drag coefficient 1.03×10 6 •N•m•s•rad-1 allows one to reduce two times the delay in the reaction of the relative bearing of the energy module to a change in the angle of rotation of its driven wheels. ABSTRAKTSDarbā analizēti jauna moduļa tipa enerģētiska un tehnoloģiska līdzekļa vērtēšanas un raksturošanas pamatprincipi. Pētījumu mērķis -droseles ietekmes pakāpes novērtēšana hidrocilindru dobumus savienojošajā hidromaģistrālē aršanas agregāta ar uzkarināmu arklu kustības laikā pagrieziena joslā. Pētījumu rezultātā pierādījies, ka agregāta kustības vadības uzlabošanās uz mobilā enerģētiskā līdzekļa bāzes iespējama pie viena hidrocilindra droselēšanas, ierobežojot moduļu savstarpējo pagriešanos horizontālā plaknē. Ierobežojoša hidrocilindra uzstādīšana moduļa tipa enerģētiskajam līdzeklim ar droseles pretestības koeficientu 1.03×10 6 •N•m•s•rad-1 ļauj divas reizes samazināt enerģētiskā moduļa virziena leņķa reakcijas nokavēšanos uz dzenošo riteņu pagriešanos.

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Production of Soil Block Seedlings in Plug Trays for Mechanical Transplanting

Cited by 10 publications

References 19 publications

Design, Development and Testing of Feeding Grippers for Vegetable Plug Transplanters

Design, Development and Testing of Feeding Grippers for Vegetable Plug Transplanters

Study on Contact Stress Distribution Characteristics and Damage of Plug Seedlings Based on Flexible Pressure Sensor

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