Flue-cured tobacco fertilization method under drip irrigation

Fecha de publicación: 06/04/2018
Fuente: WIPO "tobacco agriculture"
The invention discloses a flue-cured tobacco fertilization method under drip irrigation. The flue-cured tobacco fertilization method comprises the following steps of (1) drip irrigation, wherein a drip irrigation mode is adopted to irrigate flue-cured tobacco, at the root extending stage, 10-30 days after transplanting, irrigation is conducted twice, the drip irrigation quantity of each plant is controlled as 0.8-1.6 L, at the vigorous growing stage, 30-60 days after transplanting, irrigation is conducted three times, the drip irrigation quantity of each plant is controlled as 1.2-2.4 L, at the mature stage, 60 days after transplanting to mature days, irrigation is conducted once or twice, and the drip irrigation quantity of each plant is controlled as 0.4-0.8 L; (2) fertilization, whereina base fertilizer is applied, then topdressing is conducted, and the ratio of base nitrogen to dress nitrogen is 3:7-5:5. By means of the method, according to the water requirement characteristic ofthe flue-cured tobacco, an appropriate water environment is built for the flue-cured tobacco, meanwhile, under the condition, fertilizers and the application modes and application amounts of the fertilizers are adjusted, yield and quality improvement of the flue-cured tobacco is achieved, the fertilizer rate is lowered at the same time, the method is simple, and extended popularization is convenient.