Water-saving cultivation method for flue-cured tobacco

Abstract

The invention provides a water-saving cultivation method for flue-cured tobacco, which relates to the technical field of cultivation of the flue-cured tobacco. The method includes the following steps:sowing seeds of the flue-cured tobacco on seedling raising trays, raising the seedlings for 55-60 days, growing to an individual with 5-6 true leaves and a natural plant with the height of 5-7 cm; inwinter performing deep tillage on soil, preparing land, applying fertilizer, ridging with ridge body row spacing of 1.2 2m and 1.1m arranged crosswise in order and with the ridge height of 30-35cm, digging transplanting holes on top of a ridge, watering water of 1.0-1.5 kg per hole, transplanting tobacco seedlings after water infiltration, planting the seedlings by employing a transplanting manner, applying poison baits after the plantation, and covering mulching film with a width of 2.2 m; after 7-10 days of the transplantation, pricking 1-3 ventilation holes with the diameter of 1-2 cm on the mulching film right above the tobacco seedlings; after 13-15 days of the transplantation, keeping 1 cm distance of largest leaves of the tobacco seedlings from the mulching film, expanding the diameter of the ventilation holes to 6-10 cm, and after 18-20 d of the transplantation, expanding the diameter of the ventilation holes to 20 cm; applying fertilizer belts, watering, sealing nests when the tobacco seedlings grow to 8-10 cm above the mulching film; in 25 d of transplantation, in case of rainfall, pricking water seepage holes in a ridge body with row spacing of 1.1 m and at a distance of 25 cm from tobacco plants; and after transplanting for 25 days, covering straw. The method has the beneficial effects of water conservation, high temperature of the ridge body, early plantation andearly harvesting of the flue-cured tobacco, and alleviation of harm of summer drought.

Description

technical field [0001] The invention relates to the technical field of flue-cured tobacco cultivation, in particular to a water-saving cultivation method for flue-cured tobacco. Background technique [0002] Flue-cured tobacco is a kind of herbaceous broad-leaved plant. It grows vigorously in summer, and the field water evapotranspiration is relatively large, so it needs more water. With global warming, summer droughts have occurred frequently in recent years, which has exacerbated the relative shortage of water, resulting in reduced yield and poor quality of flue-cured tobacco. [0003] Flue-cured tobacco is mainly planted in high-altitude mountainous areas. It is difficult to divert water for the project, and the agricultural irrigation water resources stored in pools and cellars are limited. Therefore, exploring reasonable and effective water-saving cultivation methods is the key technology to solve the summer dry flue-cured tobacco cultivation. Contents of the inventi...

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Problems solved by technology

[0004] The invention provides a water-saving cultivation method for flue-cured tobacco, which solves the technical problems in the prior art that the cultivati...

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