Research Of The Intelligent Irrigation And Fertilization System And Its Effect On The Yield And Quality Of Eggplant

Since China is a country with a vast agricultural base and vast population, agriculture was an issue of supreme importance. However, wasting of irrigation water resources, irrational excessive applying fertilizer, soil and water pollution and decreasing of cultivated areas confronted our country. In view of this, China agricultural is progressing towards sustainable and information pattern. Agriculture informatization is a main impetus to the agricultural economy and sustainability of technology, as well as the world agriculture development trend. With the development of information agriculture, precise agriculture came as a brand new idea of management of agricultural economy. Integrated management of water and fertilizer, based on the new trend in modern agriculture development, aims to improve agricultural precise control. We provide the integrated management of water and fertilizer system,which integrated computer technology, electronic information technology, automatic control technology, sensor technology and fertilizer practice with the integrated management of water and fertilizer technology. This system helps improving fertilizer utilization, reducing the risk of contamination of fertilizer and at the same time, saving labor costs, via fertilizing automated and intelligentized by irrigation and drainage network.This work relies on integrated management of water and fertilizer precise control system, comparative study integrated management of water and fertilizer and traditional cultivation techniques impacts on yield and quality of farm working eggplant. We use Zilong â…¢ eggplant as experimental material, experimentized in Wuhan institute of agricultural sciences Wuhu base during April to August in2012. Plot experiment was adopted, with lower limits of soil moisture for seedling stage, anthesis stage and ripe picking period was set separately as70%,80%and70%, the traditional group adopted flood irrigation and used the traditional way of fertilizing while the integrated management of water and fertilizer group adopted drip irrigation which applied the proper amount of fertilizer to root, with3replicates in each group, while the control group were free from irrigation and fertilization. With that, we analyzed the impact of different irrigation pattern on yield, quality, minerals nutrient contents, water and fertilizer use efficiency of eggplant. The main results are as follows. (1)With the integrated management of water and fertilizer group use80%as the traditional fertilizer amount, the yield is2881.37kg per mu,25.43%higher than traditional group.(2)comprehensive surveyed, the integrated management of water and fertilizer group eggplant quality is a little higher than the traditional group, with the significantly lower content of nitrate, significantly higher content of vitamin C and soluble sugar, the content of soluble protein is lower but not very much.(3)Regarding to mineral nutrient content, the total nitrogen and total potassium of the integrated management of water and fertilizer group are significantly higher than the traditional group, while the total phosphorus is significantly lower.(4)With the lower limits of soil moisture ranges from70%to80%, the integrated management of water and fertilizer group saves58.73%water compared with the traditional group.According to this approach, we achieved some conclusions that integrated management of water and fertilizer can significantly improve the eggplant yield and quality, at the same time, improve the water and fertilizer use efficiency, cut down the pollution for soil and water by excessive fertilizer.