Research and application of informatization technology for rice and rapeseed production

In China, our group had early carried out research on simulation models of oilseed rape growth and development in the Yangtze River valley, Web-based digital design of rice and oilseed rape cultivation, morphological structure models and visualization of rice and oilseed rape. We had developed the optimization and decision-making systems for rapeseed (Rape-CSODS) based on the growth model by integrating rapeseed growth model, cultivation optimization model, and expert knowledge, and had also extended and applied the systems in main production areas of rapeseed; Investigated the monitoring of growth and nitrogen status for rapeseed based on the canopy reflectance spectra, and provided theory basis for rapid and nondestructive monitoring of rapeseed growth; realized the combining of growth models with morphological models for rice and oilseed rape through biomass-based morphological structure model and canopy light distribution research, and prompted the research on the functional structural rice and oilseed rape models. Meanwhile, we have integrated the technology of crop diseases and pests identification for rice and oilseed rape with the handheld intelligent terminal and an unmanned aerial vehicle, which set a basis for intelligent identification and unmanned prevention and control of crop diseases and pests.

Perceive agriculture

With the cooperation of Nanjing University of Science and Technology, we had carried out the following research: (1) Portable intellectualized network terminal system for agricultural information. Since 2006, a portable terminal system for agricultural information has been developed by integrating four modules, which including core CMOS, communication network, sensor, and extended Interface. The terminal system can be used for collecting plant leaf area and canopy temperature and humidity, recording and processing the data of agricultural experiment (rainproof and easy to carry), analyzing for crop production decision making based on the field data collection, etc. (2) Model-based low-cost intellectualized network monitoring and controlling for protected cultivation. Since 2008, the long-term research and exploration on intellectualized monitoring and controlling technology for protected cultivated tomato environment, optimization and decision making for protected cultivated tomato environment and management based on the monitoring data and the growth requirements of protected cultivated tomato, and implementation of regulation and other aspects have laid a solid foundation for model-based low-cost intellectualized network monitoring and controlling for protected cultivation. And field tests have been carried out, and the research was considered to have greater potential application value. (3) Handheld intelligent terminal for crop diseases and pests identification. Since 2008, the key technology of crop diseases and pests identifying with the characteristics of low-cost and portable has been researched, and a handheld intelligent terminal for crop diseases and pests identification had been developed preliminary. (4) UAV-based low-cost intellectualized identifying and precision spraying technology for crop diseases and pests. Since 2011, we have studied identification of diseases and pests for horticultural crop based on UAV-carried spectral, intellectualized automatic identifying system for horticultural crop diseases and pests based on UAV-carried spectral, developed UAV-carried monitoring-spraying apparatus, and intellectualized identifying and precision control system for crop diseases and pests based on UAV.

Quantitative research of agro-meteorological disasters and climate changes

Combining the evaluation of rice, wheat, and rapeseed meteorological disasters effect with crop growth model provided a new approach for precision evaluation of main crops meteorological disasters by quantitating the effect of crop meteorological disasters.