Method of planting Zimbabwe KRK26 tobacco in land

A technology of KRK26 and tobacco, applied in botany equipment and methods, fertilization methods, horticulture, etc., can solve the problems of tobacco leaf spot disease susceptibility, tobacco leaves easy to break, etc.

Active Publication Date: 2014-02-12
YUNNAN ACAD OF TOBACCO AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Zimbabwean KRK26 tobacco has its own characteristics, such as relatively developed root system and good drought resistance; however, when this tobacco is introduced to Yunnan in the new tobacco area, the lower toba...

Method used

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  • Method of planting Zimbabwe KRK26 tobacco in land
  • Method of planting Zimbabwe KRK26 tobacco in land
  • Method of planting Zimbabwe KRK26 tobacco in land

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0020] The healthy and strong seedlings described in step B are 60-65 days old, 6-8 leaves per plant, 10-15 cm in stem height, and 1.8-2.2 cm in circumference. , the stem is flexible.

[0021] The N:P:K ratio of fertilization described in step C is 1:1.4:3.

[0022] The base fertilizer described in the C step is applied when the soil is prepared, and the decomposed farmyard manure is used; the seedling raising fertilizer is applied at 7 to 10 days after transplanting, and the fertilizer is poured with water; the topdressing is 35 days after transplanting. It is applied when cultivating soil for ~45 days, and ring fertilization is adopted.

[0023] The seedling raising fertilizer and top dressing can be ternary compound fertilizer, potassium nitrate and potassium phosphate.

[0024] The top dressing is applied 2 to 4 times according to the growth of the tobacco plants.

[0025] The decomposed farmyard manure is obtained by fully mixing livestock and poultry manure and plant ...

Embodiment 1

[0030] Screening tests for field planting conditions.

[0031] Experimental design: Orthogonal experiment with 4 factors and 3 levels. The four factors are: A, tobacco planting density; B, fertilization amount; C, number of leaves left; D, number of lower leaves removed. See Table 1 for each level of the test factors. The row spacing of tobacco planting density is 120cm, and different plant spacing is set; the amount of fertilizer applied is expressed by the level of pure N applied; the number of remaining leaves is expressed by the number of effective leaves actually left when topping; the method of leaf retention is expressed by the number of lower leaves removed during topping. There are 3 levels for each factor, press L 9 (3 4 ) Orthogonal test to assign the levels of each factor (see Table 1 and Table 2). The method of fertilization is unified as base fertilizer (when ridging): seedling fertilizer (7 days after transplanting): top dressing (14 days after transplanting):...

Embodiment 2

[0061] In Shanhe Village, Xiaoxi Township, Tengchong County, an advantageous plot was selected, with an area of ​​10 mu and an altitude of 1640m. In 2010, the annual precipitation was 1750mm, and the annual average temperature was 14.9°C. The previous crop was milk vetch. Plowing was carried out 30 days before transplanting (April 5th), and the decomposed farmyard manure of pig pens with N, P, and K contents of 0.4%, 0.1%, and 0.3% was used as base fertilizer, and the application rate was 625kg / mu; according to the height of the ridge 38cm and 30cm wide at the top of the ridge, so that the ridge body is full and slate-shaped or trapezoidal, and the ridge spacing is 115cm; transplanting is concentrated on May 5th to May 10th, and the transplanting seedling age is 60 days at a plant spacing of 50cm. The number of leaves is 6~8, the height of the stem is 10~15cm, the circumference of the stem is 1.8~2.2cm, the tobacco seedlings are healthy and free of diseases and insect pests, th...

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Abstract

The invention discloses a method of planting Zimbabwe KRK26 tobacco in land. The method comprises the steps of soil preparation, transplantation, fertilizer application, filed management and harvest; to be specific, ploughing is carried out at the time of 30-60 days before transplantation; ridging is carried out according to ridge height 38-42cm and ridge top width 30-45cm; ridge bodies are full in plate tile shape or trapezoid; the ridge spacing is 115-125cm; healthy strong seedlings are transplanted according to row spacing 50-60cm; the seeding planting depth is 12-15cm; stalks are 3-5cm higher than the ground from the surface soil to the tobacco seedling growing point after transplantation; each tobacco seedling is watered by 1-2kg of water and is covered by fine soil; the fertilizer application comprises base fertilizer, seedling promotion fertilizer and topdressing, wherein the total application amount of nitrogen fertilizer is 5-9kg/mu of pure nitrogen; the field management comprises vacancy finding and seedling supplement, top sealing and branch removing and pest control; the harvest is carried out in different times from bottom to top according to parts, and the harvest is carried out at one step when 4-6 tobacco at the top are intensively matured. Experiments prove that according to the method of planting Zimbabwe KRK26 tobacco in land, the first-class tobacco proportion and the average price of Zimbabwe flue-cured tobacco variety KRK26 are obviously increased in Yunnan new tobacco regions, and the production value and the tobacco grade level quality of the KRK26 are obviously promoted.

Description

technical field [0001] The invention belongs to the technical field of tobacco planting, and in particular relates to a method for field-planting Zimbabwe flue-cured tobacco variety KRK26 suitable for a new Yunnan tobacco area. Background technique [0002] At present, Zimbabwe is one of the four key tobacco areas in the world, and it is also the main import area of ​​tobacco in my country. Flue-cured tobacco KRK26 was issued by the Zimbabwe Tobacco Research Institute (Kutasaga) in 2001. It is a male sterile hybrid selected by crossing MS k326 and RW (a strain resistant to angular leaf spot race 1 and root-knot nematode disease). The variety has strong resistance to powdery mildew, wildfire (races 0 and 1), angular spot (race 1), root-knot nematode, black stem and bacterial wilt, and red spot disease; Susceptible to wildfire disease, TMT, angular leaf spot (race 2) and wow eye disease with good immunity. KRK26 is a mid-to-late maturing variety with well-balanced ripening s...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01C21/00
Inventor 李军营杨宇虹杨晓明卢秀萍邓建华
Owner YUNNAN ACAD OF TOBACCO AGRI SCI
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