Design and Experiment of Orchard Gas Explosion Subsoiling and Fertilizer Injection Machine
At present, the orchard ditching and fertilizing technology has a series of problems, such as easy tree roots damage, high energy consumption and uneven fertilizing. In this paper, a gas explosion subsoiling and fertilizer injection machine was designed, which used high pressure gas to shock soil body and then injected fertilizer. The drill pipe mechanism with pneumatic chipping hammer excitation and hydraulic assistance was designed to drill the soil. The operation of gas and liquid fertilizer supply was controlled by PLC system. The 3D model of the whole machine was established by using SolidWorks software. The machine prototype was produced, and field experiments were carried out. The results showed that soil fractures were created and diffused by gas explosion, and the subsoiling effect radius reached 40 cm under the condition of 0.8 MPa gas pressure and 30 cm drilling depth. What’s more, the work efficiency is 0.048 hm2/h at least. This machine could meet the agronomic requirements of orchard, garden and city greening fertilization, and the tree roots were not easily damaged and the fertilizer evenly distributed, which was conducive to nutrient absorption of root growth.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1316606Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 609
 K. F. Sanders, “Orange harvesting systems review,” Biosystems Engineering, 2005, vol. 90, no. 2, pp. 115–125.
 H. R. Xiao, Y. Zhao, and W. Q. Ding, “Design and experiment on blade shaft of 1KS60-35X type orchard double-helix trenching and fertilization machine,” Transactions of the Chinese Society of Agricultural Engineering, 2017, vol. 33, no. 10, pp. 32–39.
 J. Zhang, R. L. Kushwaha, “A modified-model to predict soil cutting resistance”, Soil & Tillage Research, 1995, vol. 34, no. 3, pp. 157–168.
 B. Liu, H. R. Xiao, and Z. Y. Song, “Present State and Trends of Fertilizing Machine in Orchard”, Journal of Agricultural Mechanization Research, 2017, vol. 39, no. 11, pp. 263–268.
 X. D. Wang, L. C. Qiu, and R. L. Wang, “The performance of 1LQ-40 ditch and furrow plough test and research,” Journal of Agricultural Mechanization Research, 2010, vol. 32, no. 7, pp. 170–172.
 C. Ma, H. W. Meng, and Z. Kan, “The research current situation and development countermeasure of the orchard organic fertilizer deep application of disc ditching machine,” Journal of Agricultural Mechanization Research, 2017, vol. 39, no. 10, pp. 12–17.
 Q. Ye, F. P. Xie, and S. L. Sun, “Development of vineyard ditcher with reversal twin rotary tillage wheels,” Transactions of the Chinese Society of Agricultural Engineering, 2013, vol. 29, no. 3, pp. 9–15.
 M. S. Gao, S. P. Xue, and Y. C. Liao, “Experiment of subsoiling technique in apple orchard”, Transactions of the Chinese Society for Agricultural Machinery, 2010, vol. 41, no. 10, pp. 35–39+62.
 M. S. Gao, X. X. Wen, and J. H. Huang, “Effect of stubble mulch and tillage managements on apple orchard soil moisture reserves and soil enzyme activity in the Weibei Plateau”, Journal of China Agricultural University, 2009, vol. 14, no. 4, pp: 91–97.
 J. M. Kang, S. J. Li, and X. J. Yang, “Experimental verification and simulation analysis on power consumption of disc type ditcher,” Transactions of the Chinese Society of Agricultural Engineering, 2016, vol. 32, no. 13, pp: 8–15.
 Q. Q. Zhang, P. P. Li, C. S. Zhu, “Soil-bin test device of vertical spiral opener,” Journal of Drainage and Irrigation Machinery Engineering, 2014, vol. 32, no. 8, pp. 725–729.