【摘要】 为研究实时控制灌溉系统的基质培水分传感器埋设位置对温室番茄生长特性的影响,以番茄圣尼斯红果7846为试验材料,采用随机区组试验设计,即将水分传感器距滴头水平距离(5、10、15 cm)和距滴头垂直距离(10、15 cm)结合后埋设,分析了不同处理对番茄的生长指标、光合指标、品质、产量、干物质及灌溉指标的影响。结果表明,T3处理(距滴头水平距离10 cm,距滴头垂直距离10 cm)生长指标较好,根系发达,根冠比最大,净光合速率较高,蒸腾速率较小,干物质积累最多,果实VC量显著高于其他处理。T4处理(距滴头水平距离10 cm,距滴头垂直距离15 cm)净光合速率和光能转化率均最高,糖酸比较高,但是,T4处理水分生产效率显著低于T3处理。综合分析,基质培水分传感器距滴头水平距离10 cm,距滴头垂直距离10 cm埋设较合理。更多还原

【Abstract】 In order to research the effects of composite matrix moisture sensor most effective embedding position of real-time control irrigation system on greenhouse tomato growth characteristics, the tomato"seminis 7846"was taken as the test material, single factor randomized block design of experiment, including the composite matrix moisture sensors embedded horizontal distances from the emitter(5 cm, 10 cm, 15 cm) and the vertical distances from the emitter(10 cm, 15 cm) combined after buried, was used to analyze the effect of different treatments on growth indicators, photosynthetic indexes, quality, yield, dry matter, and irrigation indicators of tomato.Results showed that T3 treatment(horizontal distance of 10 cm, horizontal distance of 10 cm) had better growth indicators, more developed root system, a higher root to shoot ratio, the 2nd highest net photosynthetic rate and transpiration rate smacker accumulation of dry matter, and the VC content of fruit was significantly higher compared to other treatments. T4 treatment(horizontal distance of 10 cm, horizontal distance of 15 cm) had the highest net photosynthetic rate and light energy conversion, the ratio of sugar to acid was higher, but water production efficiency in T4 treatment was significantly lower than that of T3 treatment. According to the comprehensive analysis, the matrix moisture sensor 10 cm away from dropping head horizontal distance combined with vertical distance 10 cm apart embedding was appropriate.更多还原