沈阳农业大学学报2025，Vol.56Issue(2)：121-130,10.DOI:10.3969/j.issn.1000-1700.2025.02.013
精准施肥技术在辽北旱地保护性耕作中的集成应用
Integrated Application of Precision Fertilization Technology in Conservation Tillage of Dryland in Northern Liaoning Province
摘要
Abstract
[Objective]Addressing the issues of difficult calibration and poor control precision of fertilization rate,and low level of intelligence in fertilization machinery for conservation tillage in dryland areas of Northern Liaoning,an intelligent and precise fertilization control system based on electro-hydraulic drive technology has been integrated and developed,aiming to enhance the precision and intelligence level of fertilization operations.[Methods]The system utilizes an encoder-GNSS combined speed measurement technology,coupled with electro-hydraulic proportional control technology,to achieve real-time and precise regulation of fertilizer metering rate.The system forwards operational information to a server through terminal devices,enabling remote monitoring of fertilization operations.The system was equipped to a 2-row finger-clamp type corn no-till fertilization seeder,and the tests of calibration and control error of fertilizer metering rate were conducted.[Results]The results showed that the average error in fertilization control was less than 5%.The system was demonstrated in a conservation tillage area of 57 hm2 in Changtu,Liaoning,with a fertilization error of 1.8%,further verifying the system's precision and stability in fertilization control.[Conclusion]The intelligent precision fertilization control system can effectively improve the precision and efficiency of fertilization operations in the dryland conservation tillage of Northern Liaoning,which is of great significance for soil conservation and capacity enhancement.关键词
保护性耕作/精准施肥/自动控制/远程监管/土壤保育和产能提升/智能交互终端Key words
conservation tillage/precision fertilization/automatic control/remote monitoring/soil conservation and capacity enhancement/intelligent interactive terminal分类
农业科技引用本文复制引用
李立伟,颜丙新,武广伟,杨信廷,丛岳,魏学礼,刘瑞,凌琳,董建军..精准施肥技术在辽北旱地保护性耕作中的集成应用[J].沈阳农业大学学报,2025,56(2):121-130,10.基金项目
中国科学院战略性先导科技专项(XDA28090108) （XDA28090108）
国家重点研发计划课题(2023YFD1500604) （2023YFD1500604）
