Authors

Abstract

To address the problems of ginger stalks being easily broken and incompletely cut during the clamp-pull ginger harvesting process, two ginger varieties, small yellow ginger and red ginger, were selected as experimental subjects. The basic biophysical parameters of the two varieties were measured, and the mechanical properties of their stalks were tested through shear, compression, tensile, and pull-out tests. The results showed that the mechanical properties of red ginger stalks were superior to those of small yellow ginger, and the stalks were less prone to breakage during harvesting. Moreover, the mechanical properties of the middle part of red ginger stalks were better than those of the upper and lower parts, making it more suitable as the clamping position in clamp-pull harvesting. The maximum shear strength of red ginger stalks was 1.42 MPa, the maximum compressive strength was 0.21 MPa, the maximum tensile strength was 4.31 MPa, and the average pull-out force was 68.45 N. This study provides a basis for low-damage ginger harvesting and for the selection of varieties suitable for mechanized harvesting.

Abstract in Chinese

为了解决夹拔式生姜收获过程中生姜茎秆易断裂、茎秆切割不完全等问题，本研究选择了小黄姜和红芽姜两个生姜品种作为试验对象。测量了生姜的基本生物学参数，并通过剪切、压缩、拉伸和拉拔试验方法测试了两生姜品种茎秆的力学性能。结果表明，红芽姜茎秆的力学性能优于小黄姜，收获时茎秆不易断裂，且红芽姜茎秆中部的力学性能优于上部和下部，更适合选作夹拔式收获的夹持部位。红芽姜茎秆的最大剪切强度为1.42MPa，最大抗压强度为0.21MPa，最大抗拉强度为4.31MPa，平均拉拔力为68.45N。本研究为生姜的低损伤收获和宜机化收获品种的选择提供依据。