A fertilization method that can effectively improve the low magnesium stress in flue-cured tobacco in the middle and late stages
A fertilization method and flue-cured tobacco technology are applied in the field of flue-cured tobacco cultivation, which can solve problems such as reducing the quality of tobacco leaves, and achieve the effects of facilitating nutritional balance, improving symptoms of low magnesium stress, and changing wetness.
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Embodiment 1
[0030] A fertilization method capable of effectively improving low-magnesium stress in the middle and late stages of flue-cured tobacco comprises the following steps:
[0031] 1) Tobacco seedling transplanting: select magnesium-deficient fields with magnesium ions ≤ 50 mg / kg, apply base fertilizer before moisture management, and then perform moisture management, and then select disease-free tobacco seedlings that have been cultivated for 35 days, with beautiful growth and well-developed roots. Transplanting, and topdressing is completed at the group tree stage; the flue-cured tobacco variety is K326; the base fertilizer is 500kg / mu of organic fertilizer, and the base dressing ratio of nitrogen fertilizer is 4:6; the organic fertilizer is cake fertilizer, manure Made by pulverizing, mixing, stacking, and sterilizing, the ratio of cake fertilizer to chicken fertilizer is 1:6;
[0032] 2) Foliage spraying: Select magnesium sulfate heptahydrate fertilizer for tobacco (purity ≥ 99%...
Embodiment 2
[0035] A fertilization method capable of effectively improving low-magnesium stress in the middle and late stages of flue-cured tobacco comprises the following steps:
[0036] 1) Tobacco seedling transplanting: select magnesium-deficient fields with magnesium ions ≤ 50mg / kg, apply base fertilizer before moisture management, and then perform moisture management, and then select disease-free tobacco seedlings that have been cultivated for 33 days, have delicate growth, and well-developed roots. Transplanting, and topdressing is completed at the group tree stage; the flue-cured tobacco variety is K326; the base fertilizer is 500kg / mu of organic fertilizer, and the base dressing ratio of nitrogen fertilizer is 4:6; the organic fertilizer is cake fertilizer, manure Made by pulverizing, mixing, stacking, and sterilizing, the ratio of cake fertilizer to chicken fertilizer is 1:6;
[0037] 2) Foliage spraying: Select magnesium sulfate heptahydrate fertilizer for tobacco (purity ≥ 99%)...
Embodiment 3
[0040] A fertilization method capable of effectively improving low-magnesium stress in the middle and late stages of flue-cured tobacco comprises the following steps:
[0041] 1) Tobacco seedling transplanting: select magnesium-deficient fields with magnesium ions ≤ 50mg / kg, apply base fertilizer before moisture management, and then perform moisture management, and then select disease-free tobacco seedlings that have been cultivated for 37 days, have delicate growth, and well-developed roots. Transplanting, and topdressing is completed at the group tree stage; the flue-cured tobacco variety is K326; the base fertilizer is 500kg / mu of organic fertilizer, and the base dressing ratio of nitrogen fertilizer is 4:6; the organic fertilizer is cake fertilizer, manure Made by pulverizing, mixing, stacking, and sterilizing, the ratio of cake fertilizer to chicken fertilizer is 1:6;
[0042] 2) Foliage spraying: Select magnesium sulfate heptahydrate fertilizer for tobacco (purity ≥ 99%)...
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