Design And Practice Of An Intelligent Integrated Water And Fertilizer System Based On Internet Of Things

?objective? In view of a series of problems such as arid climate,limited arable area,and low water and fertilizer utilization efficiency in the northwestern region of China,it has always been a difficult and hotspot in the field of arid agriculture research.Water and fertilizer-saving equipment has become the key technology to solve this problem.The Chinese government and enterprises increasingly pay attention to and pay attention to high-tech applications such as Internet of Things cloud technology,artificial intelligence,and big data.Various industries and industries gradually integrate and use modern science and technology to promote the transformation of traditional agriculture to modern agriculture.Bingtuan Farm has begun to use integrated water and fertilizer equipment to reduce agricultural cost input and improve water and fertilizer utilization efficiency;however,there are generally problems such as inaccuracy,narrow application,high cost,and difficulty in promotion.Therefore,this subject was developed and designed for the above phenomenon The intelligent water and fertilizer integrated system based on the Internet of Things is used to improve water and fertilizer utilization efficiency,reduce agricultural cost waste,and remotely monitor plant growth in real time.At the same time,it is based on the yellow sand substrate-based tomato water and fertilizer integrated planting practice test.The "sand industry" vision provided technical support and experience for the development of desert agriculture in Xinjiang.?method? The integrated technology of water and fertilizer in foreign countries is very skilled,and the integrated technology of water and fertilizer in China is different,and the pertinence and functional effects are uneven.Integrated system,this system is mainly composed of two systems: the upper computer(Internet of things remote monitoring system)and the lower computer(automatic water and fertilizer integrated system),of which the automatic water and fertilizer integrated system consists of the control center system,irrigation and fertilization system,environment The information collection system consists of3 parts.The control center system integrates PLC(programmable logic controller)technology,touch screen technology,wireless module and other technologies to form the hub of an intelligent automatic water and fertilizer integrated system.Set manual / automatic mode,irrigation and fertilization parameters according to human needs,Receive and transmit water and fertilizer commands in real time;the irrigation and fertilization system is composed ofVenturi fertilisers A and B,fertilizer suction electric ball valves,irrigation electric ball valves,irrigation channels,centrifugal pumps,submersible pumps,etc.to achieve precise quantitative irrigation and fertilization according to the instructions;The environmental information collection system is composed of the SM2801 M sensor,and a number of integrated real-time collection of soil EC values,water content,temperature and other parameters are transmitted to the central hub and the system remote terminal.The remote monitoring system of the Internet of Things is mainly composed of a cloud platform,a remote WeChat applet / PC terminal,and a 4G module.The remote terminal is set with a one-key start / stop mode for water and fertilizer,and the function of recording and curve of various parameters and alarms and other functions,real-time The root system environmental parameters are transmitted to the cloud platform and recorded as historical data storage.At the same time,it can remotely monitor the plant growth and control the operation of the integrated system of water and fertilizer.In order to verify and test the feasibility of the system,the three Shijia tomato strains were selected as the test materials.The equipment of this system was used to manage a full growth period of tomatoes.The yield and quality of the harvested tomato fruits were used to illustrate the operating effect of the system equipment.?results? An intelligent water and fertilizer integrated system based on the Internet of Things has undergone many upgrades to improve and debug the hardware structure and software system to make the equipment operate normally.An intelligent water and fertilizer integrated system based on the Internet of Things is developed and designed in this research.Based on the characteristics of water demand and fertilizer demand at each growth stage of the plant,the water and fertilizer parameters and operation mode are set,and the tomato plant's absorption of N,P,K and trace elements is combined.Features,using the yellow sand in the desert as a planting substrate,remote monitoring of water and fertilizer integration system and plant growth,simple and convenient,suitable for a variety of crops,easy to obtain high-yield and high-quality biological output,guaranteed economic benefits.Remotely monitor the conditions in the shed and plant growth through the Internet of Things technology.You can view the root environment and historical records at the service terminal as needed.You can change the threshold parameters of water and fertilizer settings or turn on/ off the water and fertilizer supply with one click.The experiment showed that the water content of the yellow sand substrate during the growth period of this experiment was between14.0-17.5%,which increased first and then decreased with the growth period;the normal EC value range was 1.0-2.5mS / cm.The harvested yields of the three Shijia tomato lines ranged from 134.0-146.3 tons / ha,all of which have reached the high-yield level of greenhouse tomatoes.The nutritional quality of the fruit is in the middle and high level,and the sugar-acid ratio is above 7.71,which is very suitable for fruit tomato.The bestcomprehensive quality of Shijia 1812 is calculated by fuzzy mathematics.As a substitute substrate for tomato cultivation,the yellow sand substrate can reduce the occurrence of soil environmental pests and diseases and secondary salinization.After being cultivated and planted by three Shijia tomato lines,it shows that the yellow sand substrate and water and fertilizer integrated tomato cultivation based on the Internet of Things technology The technical team is suitable,the output and quality are guaranteed,and it has good practical and promotional value.