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Special Compound Fertilizer for Flue-cured Tobacco Variety k326 and Its Application

A flue-cured tobacco variety and compound fertilizer technology, applied in the agricultural field, can solve problems such as unreasonable fertilizer type matching and nutrient distribution ratio, unfavorable tobacco leaf yield and quality, and reduced fertilizer utilization rate, so as to improve the appearance quality of tobacco leaves, good appearance quality, The effect of excellent agronomic traits

Inactive Publication Date: 2019-02-12
INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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, and the unreasonable nutrient ratio not only reduces the utilization rate of fertilizers, increases fertilizer costs, but also adversely affects the yield and quality of tobacco leaves. What is more serious is that excessive chemical fertilizers have adverse consequences on the environment
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 flue-cured tobacco variety K326

Method used

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  • Special Compound Fertilizer for Flue-cured Tobacco Variety k326 and Its Application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Preparation method of special compound fertilizer for flue-cured tobacco variety K326: It is made by drum steam granulation process, namely 14-16 parts ammonium nitrate, 16-18 parts diammonium phosphate, 47-49 parts potassium sulfate and 50 parts diatom The soil is pre-crushed, then mixed, and then crushed into powder. The mixed components are granulated by drum. The granulation process and conditions are as follows: steam is added to the drum, and the mixed elemental fertilizer powder is started. Agglomeration is appropriate. The roughly agglomerated powder is fed into the drying kiln through a belt for drying. The inlet temperature of the drying kiln is controlled at 140°C. The powder is further granulated and dried in the drying kiln, and then cooled by the cooling kiln. After the mesh screen, the finished product is bagged, and the particles that are too large or too small are returned and further re-granulated. The percentage content of nitrogen, phosphorus and pota...

Embodiment 2

[0024] The formulating method of special compound fertilizer for flue-cured tobacco variety K326: same as Example 1.

[0025] For medium fertility fields (the grading standard is the second soil survey), the fertilizer with a ratio of 8:8:24 of nitrogen, phosphorus and potassium is applied during transplanting, and the application rate is 65kg / 667m. 2 , 7 days after transplanting and 15 days after transplanting, 6kg and 13kg of potassium nitrate were applied as the first top dressing, and 40 days after transplanting, 19kg of potassium sulfate was applied as the second top dressing.

Embodiment 3

[0027] The formulating method of special compound fertilizer for flue-cured tobacco variety K326: same as Example 1.

[0028] For low fertility fields (the grading standard is the second soil survey), the fertilizer with a ratio of nitrogen, phosphorus and potassium of 8:10:32 is used for preparation when transplanting, and the application rate is 70kg / 667m 2 , 7 days after transplanting and 15 days after transplanting, 6kg and 13kg of potassium nitrate were applied as the first top dressing, and 40 days after transplanting, 19kg of potassium sulfate was applied as the second top dressing.

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Abstract

The invention belongs to the technical field of agriculture, and particularly relates to a special compound fertilizer for flue-cured tobacco variety K326 and application thereof. The special compound fertilizer for flue-cured tobacco variety K326 contains 7.5-8.5% of nitrogen, 7.5-8.5% of phosphorus and 23-25% of potassium. When the compound fertilizer is used for planting the flue-cured tobacco variety K326, the tobacco plant has favorable integral growth vigor and high disease tolerance, and the incidence rate of black shank is lowered by 3.3-6.66%. Various agronomic character values are excellent, and the waist leaf length and width are respectively increased by 13.85-20.97% and 12.5-21.74%. The total nitrogen, nicotine, total sugar, reducing sugar, tobacco potassium, sugar / base ratio and nitrogen / base ratio of the tobacco are respectively within a proper range. The compound fertilizer can effectively enhance the appearance quality of the tobacco, increase the tobacco aroma and potassium content, improve the taste of the tobacco and enhance the yield and quality of the tobacco, and is applicable to batch planting of the flue-cured tobacco variety K326.

Description

Technical field [0001] The invention belongs to the technical field of agriculture, and particularly relates to a special compound fertilizer for flue-cured tobacco variety K326 and its application. Background technique [0002] The flue-cured tobacco variety K326 was bred by Northup King Seed Company using McNair225 (McNair30×NC95). It was introduced from the United States to Yunnan Province in 1985 and was approved by the Yunnan Crop Variety Approval Committee in 1988. The popularized varieties participated in the national trial of improved varieties of flue-cured tobacco from 1986 to 1988. In 1989, the National Tobacco Variety Approval Committee approved them as national popularized varieties. The yield per mu of flue-cured tobacco variety K326 is 165.51~202.53kg. The original tobacco is orange-yellow, rich in oil, strong luster, loose leaf structure, moderate identity, main rib ratio 28.97%; total sugar about 26.38%, nicotine 2.01-3%, protein 10.77%, total nitrogen 2.07%, Sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00
CPCC05B7/00C05C1/00C05D1/02
Inventor 周敏周绍松王建新罗华元张忠武杨景华刘红光董石飞饶智杨应明陈初朱海滨李枝桦唐鹭邹炳礼
Owner INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI
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