滴灌水肥一体化施肥频率对日光温室番茄生长指标及产量的影响

Effects of Integrated Fertilization Frequency of Water and Fertilizer under Drip Irrigation on the Growth Indices and Yield of Tomato in Solar Greenhouse

以温室番茄为研究对象,采用水肥一体化滴灌方式研究唐山地区滴灌水肥一体化施肥频率对日光温室番茄生长指标及产量的影响,以期为该地区设施番茄滴灌水肥一体化技术提供科技支撑。滴灌施肥频率设5个处理,分别每3、5、7、9、11 d滴灌施肥1次,在结果期测定不同施肥频率的株高、茎粗、叶面积、干物质重和产量。结果表明,在灌溉量和施肥量一定的条件下,当滴灌施肥频率为每7 d 1次时番茄植株长势最好,总产量最高(135.06 t/hm^(2))。因此,温室番茄结果期滴灌施肥频率以每7 d 1次为宜。

Greenhouse tomato was taken as the research object to study the effects of integrated fertilization frequency of water and fertilizer under drip irrigation on the growth indices and yield of tomato in solar greenhouse in Tangshan area by using water-fertilizer integrated irrigation model, in order to provide scientific and technological supports for the integrated technology of drip irrigation with water and fertilizer in the local facilities. The frequency of fertilization and drip irrigation was set in 5 treatments, fertilization and drip irrigation once per 3, 5, 7, 9 and 11 days, respectively. The plant height, stem diameter, leaf area, dry matter weight and yield in the treatments with different fertilization frequencies were measured in the fruiting period. The results showed that under the conditions of a certain amount of irrigation and fertilizer application, the tomato plants grew the best and the yield was the highest(135.06 t/hm^(2)), when the drip irrigation and fertilizer application frequency was once per 7 days. Therefore, the suitable drip irrigation and fertilization frequency of greenhouse tomato in the fruiting period was once per 7 days.