A multi-functional machine to complete the deep loosening and fertilizing was designed con-traposing the agronomic requirements and features of wide-narrow-row planting pattern.The subsoiler and the fertilization components were designed according to the season characteristics, location requirements of fer-tilization and the operation form of tractors;it could increase the use rate of fertilizers, and reduce the times of machines entering land to avoid the soil compaction;it could not only be used for deep scarification and fertili-zation in wide rows before the arrival of summer rain, but also operate standard subsoiling in the fall after re-moving the fertilization components, so it could be a machine to achieve several purposes.The field test re-sults showed that compared with intermediate fertilization, fertilizing at 200~250 mm of line side in the depth of 50~100 mm, the plant height increased by 10%~13% in one month.The machine also could be de-tached into independent deep subsoiler to realize 250~300 mm of subsoiling operation in fall;and the average variation coefficient of subsoiling depth was 1 .03% accounting for stable performance of this deep loosening machine.The average degree of swelling after summer subsoiling was 16.12%, and the range of soil disturb-ance was small with no obvious bulk and adhesive tape.
Soil deep looseningCultivation and fertilizationDeep subsoilerMulti-functional deep loosing and fertilizing machine
国家科技期刊平台
NSTL
维普
万方数据
