Flue-cured tobacco fertilization method under drip irrigation

Abstract

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.

Description

technical field [0001] The invention belongs to the technical field of tobacco cultivation, and in particular relates to a method for fertilizing flue-cured tobacco under the condition of drip irrigation. Background technique [0002] Drip irrigation technology uses the pipeline system to pressurize the water, so that the water enters the branch pipe from the main pipe, enters the capillary pipe from the branch pipe, and transports the water regularly and quantitatively to the root development area of ​​the tobacco plant. It is a form of water-saving irrigation. However, there are still many problems in the existing tobacco drip irrigation conditions and the fertilization method under the drip irrigation conditions. The reduction provides a new way of thinking, but the current technical foundation of fertilization under drip irrigation in flue-cured tobacco production is relatively weak, lacking the support of relevant technical parameters. The appropriate amount and freque...

AI Technical Summary

Problems solved by technology

However, there are still many problems in the existing tobacco drip irrigation conditions and the fertilization method under the drip irrigation conditions. Reduction provides a new idea, but the current technical foundation of fertilization under drip irrigation in flue-cured tobacco production is relatively weak, lacking the support of relevant technical parameters

The appropriate amount and frequency of drip irrigation for flue-cured tobacco are yet to be studied

On the other hand, at present, there are few research reports on the suitable fertilization method and fertilization amount of flue-cured tobacco under the condition of drip irrigation, and the conclusion is not clear, and the production guidance is not strong.

Images