Design and Experiment of Horizontal Transplanter for Sweet Potato Seedlings

Yan, Wei; Hu, Mingjuan; Li, Kun; Wang, Jia; Zhang, Wenyi

doi:10.3390/agriculture12050675

Cited by 14 publications

(13 citation statements)

References 7 publications

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“…The plant spacing coefficient of variation for all treatments varied from 2.64% to 5.58% in 2020 and from 3.14% to 6.82% in 2021, but the differences were not significant (p > 0.05) (Table 2). The mean value of the plant spacing coefficient of variation for the 2CGFS-2 compound sweet potato transplanter during 2020-2021 was 4.53%, a decrease of 3.9% compared with the value of the horizontal transplanter for sweet potato seedlings designed by Yan et al [34]. The reason may be that the slip transplanting apparatus of the 2CGFS-2 compound sweet potato transplanter was designed to be driven by the ground wheel.…”

Section: Missing Seedling Rate and Qualified Rate Of Transplanting Po...mentioning

confidence: 83%

Efficacy of Sweet Potato Transplanting Machine for Different Cultivation Systems in Northern China

Liu

et al. 2022

Agriculture

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China is the world’s biggest producer of sweet potato (Ipomoea batatas (L). Lam.), and approximately 55% of the global supply is from China. Raised beds (RB) and raised beds mulched with plastic film (RBF) are the two main sweet potato cultivation systems now widely used in northern China. Planting placement of multiple nodes buried in shallow soil layers is additionally required for the sweet potato cultivation to achieve higher yields and reduce pests and diseases in this area, which increases the difficulty of transplanting mechanically. Therefore, a 2CGFS-2 compound sweet potato transplanter was developed, and the key parameters of slips transplanting apparatus were designed in this paper. Furthermore, its performance was investigated over two years under four treatments with different sweet potato varieties (Jishu 26 and Pushu 32) and cultivation systems (RBF and RB). The results showed that the missing seedling rate and qualified rate of transplanting population for each treatment by using 2CGFS-2 compound transplanter were <1.2% and >95.0% in both 2020 and 2021, while the mean values of the plant spacing variation coefficient and the qualified rate of transplanting depth during 2020–2021 were 4.53% and 96.28%, respectively. The length of the sweet potato slip inserted into the soil by the 2CGFS-2 compound sweet potato transplanter was almost the same, ca. 195 mm. The accurate placement of the sweet potato slips reduced the differences in tuber weight per plant caused by manual transplanting. These results are of considerable importance for RB and RBF sweet potato cultivation systems.

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Section: Missing Seedling Rate and Qualified Rate Of Transplanting Po...mentioning

confidence: 83%

Efficacy of Sweet Potato Transplanting Machine for Different Cultivation Systems in Northern China

Liu

et al. 2022

Agriculture

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“…One potential barrier to the adoption of horizontal planting equipment is the lack of commercial production of this transplanter in the region. Engineers in China have made progress in designing a horizontal transplanter and have recently published results from its field test (Yan et al 2022). In the United States, horizontal transplanter production currently requires custom requests to equipment manufacturers.…”

Section: Discussionmentioning

confidence: 99%

“…Traditional field establishment of sweetpotato in the United States uses unrooted stem cuttings that are transplanted vertically into the soil (Hall 1986). However, in other countries, other planting orientations are typical, and cuttings may be oriented at an angle or horizontally (Coleman et al 2006;Low et al 2009;Yan et al 2022;Zhang et al 2009). Empirical evidence from North Carolina, USA, sweetpotato producers suggest that horizontal orientation may improve yields (Jones J, personal communication, 2020).…”

mentioning

confidence: 99%

Horizontal Planting Orientation Can Improve Yield in Organically Grown Sweetpotato

Woodard,

Schultheis,

Jennings

et al. 2024

horts

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Sweetpotato [Ipomoea batatas (L.) Lam.] is one of North Carolina’s (USA) most important organic commodity crops; however, yields tend to be less when compared with conventionally produced sweetpotato. Standard field establishment uses unrooted stem cuttings that are transplanted vertically in the soil. Producers in other countries typically use other planting orientations, including cuttings transplanted horizontally. Empirical evidence from North Carolina, USA, sweetpotato producers suggests that a horizontal orientation may improve yields. An organically managed field study using ‘Monaco’ sweetpotato was conducted in 2020 and 2021 in Bailey, NC, USA. The study evaluated stem cutting planting orientations (vertical, sleeve, horizontal), stem cutting length (25 cm and 38 cm), and harvest time (early or late) in a full-factorial randomized complete block design. In 2020, marketable yields were 16% greater for the horizontal orientation compared with the vertical orientation, with intermediate yields using the sleeve attachment. However, in 2021, there were no differences in marketable yield among planting orientations. In both years, US No. 1–grade yields were significantly greater when cuttings were planted horizontally compared with vertically, with an average increase of 18%. Delaying harvest until ∼126 days is recommended to increase yields for ‘Monaco’, regardless of planting orientation. This study provides evidence that a horizontal planting orientation could increase premium root yields and improve land-use efficiency for organically produced sweetpotatoes.

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“…The length L S of sweet potato bare seedlings in the horizontal planting area is greater than 80 mm and less than 100 mm. The adoption of the horizontal planting method increases the yield of each large and medium-sized potato plant, thereby increasing the yield and commodity rate of sweet potatoes [36,37].…”

Section: Agronomic Requirements For Horizontal Transplanting Of Sweet...mentioning

confidence: 99%

Optimized Design and Experiment of a Self-Covering Furrow Opener for an Automatic Sweet Potato Seedling Transplanting Machine

Wu,

Wang,

Zhang

et al. 2023

Sustainability

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The yield and quality of sweet potatoes are significantly influenced by the transplantation posture of sweet potato seedlings. The performance of the sweet potato seedling transplanting opener directly affects the transplantation posture of sweet potato seedlings. In order to improve the yield and quality of sweet potatoes, this study proposes a joint simulation method based on discrete element and flexible multi body dynamics (DEM-FMBD), which optimizes the structure of a self-covering soil opener. By exploring the influence of self-covering soil trenchers on the planting depth and posture of sweet potato seedlings during horizontal transplantation, it was determined that the influencing factors of the experiment were wing spacing, soil reflux height, and soil reflux length. Based on the DEM-FMBD coupling simulation platform, single factor, and quadratic rotation orthogonal experiments were carried out. According to the results of the simulation test, the effect of the interaction of test factors on planting depth and planting attitude was analyzed by the response surface method. Finally, the optimal structural parameter combination was obtained by a multi-objective optimization method: the spacing of the wings was 58 mm, the height of the soil backflow port was 71 mm, and the length of the soil backflow port was 163 mm; thus, the quality of transplanting is improved effectively. This study provides the method and theory reference for the study of sweet potato transplanting.

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Design and Experiment of Horizontal Transplanter for Sweet Potato Seedlings

Cited by 14 publications

References 7 publications

Efficacy of Sweet Potato Transplanting Machine for Different Cultivation Systems in Northern China

Efficacy of Sweet Potato Transplanting Machine for Different Cultivation Systems in Northern China

Horizontal Planting Orientation Can Improve Yield in Organically Grown Sweetpotato

Optimized Design and Experiment of a Self-Covering Furrow Opener for an Automatic Sweet Potato Seedling Transplanting Machine

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