Special compound fertilizer for Zimbabwe flue-cured tobacco KRK26 and fertilization method thereof

Abstract

The invention discloses special compound fertilizer for Zimbabwe flue-cured tobacco KRK26 and a fertilization method thereof. The weight ratio of nitrogen, phosphorus and potassium in the compound fertilizer is (7.5-8.5): (9.5-10.5): (31-33). The compound fertilizer disclosed by the invention has the advantages that the proportion of high-quality Zimbabwe flue-cured tobacco KRK26 can be increased, the length and width of lumbar leaves are improved, and the blackleg resistance is improved.

Description

technical field [0001] The invention belongs to the field of agricultural technology, in particular, the invention relates to a special compound fertilizer for Zimbabwe flue-cured tobacco KRK26 and a fertilization method thereof. Background technique [0002] Flue-cured tobacco KRK26 was issued by the Zimbabwe Tobacco Research Institute (Kutasaga) in 2001. A male sterile hybrid bred by crossing MS k326 and RW (race 1 resistant to angular leaf spot and root-knot nematode). Variety Characteristics: KRK26 is a mid-to-late maturing variety with well-balanced ripening speed and medium to high yield potential. The quality of the leaves produced is good, the mature particles are good, and the lemon-colored tobacco leaves are more than KM10 (released by Kutasaga in 1984) and KE1 (released by Kutasaga in 1968). The variety has a well-developed root system and good drought resistance. KRK26 has good overall performance from the seedling stage to the field stage, with strong growth, ...

AI Technical Summary

Problems solved by technology

At present, in the traditional planting mode, due to the lack of scientific guidance, the tobacco farmers have unreasonable fertilizer types and nutrient distribution ratios in production. Some farmers still use urea on flue-cured tobacco, excessive nitrogen application, and insufficient potassium application. Wait

Tobacco farmers use chemical fertilizers blindly. The unreasonable nutrient distribution not only reduces the fertilizer utilization rate, increases the fertilizer cost, but also adversely affects the yield and quality of tobacco leaves. What is more serious is that too much chemical fertilizer has already damaged our living environment. Produce adverse consequences (water pollution, agricultural product pollution and greenhouse effect, etc.)

[0004] It is understood that tobacco companies around the world have special nitrogen, phosphorus and potassium compound fertilizers for flue-cured tobacco, but there is no specific nitrogen, phosphorus and potassium compound fertilizer for KRK26

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