
Study on Ebb-and-flow Mode Parameters of Smart Tobacco Seedling Cultivation
GAOSiman, LIUGuangliang, DUANWuli, YANGNa, DONGXingmei, CHENAiguo
Chin Agric Sci Bull ›› 2025, Vol. 41 ›› Issue (23) : 38-44.
Abbreviation (ISO4): Chin Agric Sci Bull
Editor in chief: Yulong YIN
Study on Ebb-and-flow Mode Parameters of Smart Tobacco Seedling Cultivation
Seedling cultivation based on ebb-and-flow irrigation mode is a new type technology with water-saving, fertilizer-reducing and efficient-improving characteristics, in which ebb-and-flow parameters play a key role. To clarify the appropriate ebb-and-flow parameters in tobacco seedling cultivation, this study conducted a uniform design experiment on irrigation interval frequency, nutrient concentration, and liquid supply height. Both main effect analysis and comprehensive contribution rate analysis showed that irrigation interval frequency had the greatest impact, followed by nutrient concentration and liquid supply height. The interaction effects were significantly greater than the single factor main effect. The ridge regression model was optimized with irrigation interval frequency of 30.50 h/time, nutrient concentration of 153.94 mg/L, and liquid supply height of 3.84 cm, which could stably obtain the best seedling. Furthermore, the ebb-and-flow parameter for optimization management plan were irrigation interval frequency of 28.8-30.5 h/time, nutrient concentration of 153-154 mg/L, and liquid supply height of 3.8-3.9 cm, respectively.
tobacco / seedling cultivation based on ebb-and-flow irrigation mode / ebb-and-flow parameters / strong seedling evaluation / single factor effect analysis / contribution rate / model optimization
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