设施葡萄智能化水肥管理体系研究

当前设施葡萄栽培中水肥盲目投入问题严重,因为缺乏灌溉决策标准导致农户实际生产中难以合理应用水肥一体化技术.利用基于NB-IoT网络传输的固态电阻传感器设备对设施葡萄根系土壤水分进行实时监测,建立了基于土壤水分张力的设施葡萄灌溉决策指标,并依托水肥一体化设备实现自动灌溉.研究结果表明:智能灌溉与施肥结合的综合管理比农户常...

Research on intelligent water and fertilizer management system of greenhouse grape

The blind investment of water and fertilizer is a serious problem in protected viticulture at present,because of the lack of irrigation decision-making standard,it is difficult for farmers to apply water and fertilizer integration technology in practice.In this study,eVineyard integrated sensor based on NB-IoT network was used to monitor soil moisture of greenhouse grape root system in real-time,and the irrigation decision-making index of greenhouse grape based on soil moisture pressure was established,and relying on water and fertilizer integration equipment to achieve automatic irrigation. The results showed that, compared with the famer management,the ear weight of the integrated management of intelligent irrigation and fertilization was increased by 161 g,the yield was increased by 20.2 t/hm²,the content of soluble solids increased by 31.1%,acid content was decreased by 21.9%,and vitamin C content was increased by 4.13 mg/100 g.Compared with farmer’s drip irrigation,the water-saving efficiency reached 33.3%,water consumption dropped to 2016 t/hm²,and the total cost of irrigation and fertilization saved by 32.2%.Water balance can be achieved by setting irrigation decision-making index with soil water pressure less than 30 kPa in germination to flowering and less than 200 kPa in fruit growth,according to the nutrient supply of soil and the nutrient absorption of crop target yield and the fertilizer input quota can be used for the intelligent management of grape water and fertilizer integrated system.