A flue-cured tobacco fertilization method capable of effectively preventing and controlling tobacco planting soil diseases and insect pests

A fertilization method and technology of pests and diseases, applied in the direction of fertilization methods, botanical equipment and methods, fertilization devices, etc., can solve the problems affecting the soil physical and chemical properties of flue-cured tobacco yield and quality, the deterioration of cultivation environment conditions, and enhance the resistance of diseases and insect pests, etc., to achieve soil physical and chemical The effects of improving properties, controlling production costs, and promoting full maturity

CN105638226BActive Publication Date: 2019-04-05YUNNAN TOBACCO CO LTD KUNMING BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-04-05

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Abstract

The invention discloses a flue-cured tobacco fertilization method capable of effectively preventing and controlling tobacco planting soil diseases and insect pests. Firstly, the tobacco field is prepared, and undecomposed organic fertilizer is evenly spread on the ridge line of the tobacco field, and the spreading amount is 2000-5000kg / 667m 2 , spread with a thickness of 10-20cm, then cover the undecomposed organic fertilizer with soil to a ridge shape, cover with plastic film and seal it tightly with fine soil, ferment and decompose for 20-40 days, and then remove the film and ventilate for 1-3 days. The invention can kill black shank disease bacteria, root black rot disease bacteria and their spores, root-knot nematodes and their eggs in the plow layer soil by using high temperature during the decomposition process of organic fertilizer, effectively preventing black shank disease, root The occurrence of black rot and root-knot nematode; while killing the pests and diseases, the process of applying basal fertilizer to flue-cured tobacco is completed without additional agricultural operations; the raw materials of undecomposed organic fertilizers have the advantages of good air permeability, and their Fertilizers can improve soil physical and chemical properties.
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Description

technical field

[0001] The invention belongs to the technical field of flue-cured tobacco planting, and in particular relates to a flue-cured tobacco fertilization method capable of effectively preventing and controlling soil diseases and insect pests in tobacco planting. Background technique

[0002] Currently in the cultivation of flue-cured tobacco, black shank, root black rot, and root-knot nematode are common diseases and insect pests that endanger the normal growth of flue-cured tobacco. Among them, black shank disease is caused by Phytophthora nicotiana, a facultative parasite that likes high temperature and high humidity. There are water-soaked black spots at the base of the plant stem, which can expand to more than ten centimeters above the ground, causing the leaves of the whole plant to suddenly wither and then die, and the blackleg disease has a strong ability to spread, and the disease is severe during the transplanting period of tobacco seedlings and the long-t...

Examples

Embodiment 1

[0037] To prepare the tobacco field first, spread the undecomposed organic fertilizer evenly on the ridge line of the tobacco field, and the amount of application is 4000kg / 667m 2 , spread with a thickness of 10cm, then cover the undecomposed organic fertilizer with soil 15cm to a ridge shape, cover with plastic film and seal it tightly with fine soil, ferment and decompose for 40 days, then remove the film and ventilate for 1 day, then transplant tobacco seedlings and cultivate until reward.

Embodiment 2

[0039] First prepare the tobacco field, and then open a ditch on the ridge line of the tobacco field. The ditch is 60cm wide and 10cm deep. Spreading amount is 3000kg / 667m 2 , spread with a thickness of 15cm, then cover with soil 20cm to a ridge shape, cover with plastic film and seal it tightly with fine soil, ferment and decompose for 30 days, then uncover the film and ventilate for 2 days, then transplant tobacco seedlings and cultivate until harvest.

Embodiment 3

[0041] First prepare the tobacco field, and then open a ditch on the ridge line of the tobacco field. The ditch width is 50cm, the ditch depth is 5cm, and the interval between two ditches is 110cm. Undecomposed organic fertilizer is evenly spread in the ditch, and the Spreading amount is 2000kg / 667m 2 , spread with a thickness of 10cm, then cover the undecomposed organic fertilizer with soil 10cm to a ridge shape, cover with plastic film and seal it tightly with fine soil, ferment and decompose for 20 days, then remove the film and ventilate for 1 day, then transplant tobacco seedlings and cultivate until reward.