Abstract:
In order to solve the problems of high soil moisture content in strawberry planting season in the middle and lower reaches of Yangtze River, such as Jiangsu and Anhui, easy slippage of traditional strawberry ridge machines, insufficient ridge height, low efficiency, and single function, a tracked self-propelled strawberry ridging and fertilizing machine was developed. The machine was powered by the rubber crawler chassis. It adopted furrow setting for soil cultivation, ridge forming device for soil gathering, and the comprehensive ridge raising technology for ridge copying and suppression. It used the layer fertilizing device to complete the layer fertilizing operation of the ridge body. Through theoretical analysis and 3 D modeling, the structural parameters of key components such as rotary tillage ditching device, ridge copying suppression device, and layer fertilization device were determined. The static fertilizer discharge performance test and field operation performance test of the machine were carried out. The test results showed that the coefficient of variation of consistent fertilizer discharge of each row was 4.32%, and the coefficient of variation of total fertilizer discharge stability was 3.45%. The average ridge height was 352 mm, the average ridge spacing was 943 mm, and the application alignment accuracy was 11 mm. The surface of the ridge body was smooth, and the furrows were clean, which can realize rotary tillage, ridge raising, and precise stratified fertilization of the ridge body in the opposite position and meet the agronomic requirements of strawberry ridge raising fertilization.