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A compound growth-promoting agent for promoting tobacco growth

A growth-promoting agent, tobacco technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of tobacco planting soil and environmental damage, reduction of the number of active microorganisms, expansion of compacted soil area, etc., to improve agronomic properties and increase growth. quality effect

Active Publication Date: 2018-08-21
BEIJING SHENGDA LONGTENG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the cultivation of tobacco crops in my country mainly relies on the large-scale application of chemical fertilizers and pesticides to maintain high yields of tobacco leaves, which has caused serious damage to the soil and environment of tobacco cultivation.
[0003] The area of ​​flue-cured tobacco soil that is easy to stick and harden in my country is large, and there are many compacted soils. Especially in recent years, a large amount of chemical nitrogen fertilizer has been applied. Although the crop yield has increased significantly, the soil structure has been damaged, the area of ​​compacted soil has expanded, and the supply of soil nutrients has become unbalanced. , the original farmland ecosystem has undergone great changes, the number of active microorganisms has decreased, and the utilization rate of nutrients such as nitrogen, phosphorus, and potassium is not high, which has seriously affected the yield and quality of tobacco

Method used

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  • A compound growth-promoting agent for promoting tobacco growth
  • A compound growth-promoting agent for promoting tobacco growth
  • A compound growth-promoting agent for promoting tobacco growth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The preparation of embodiment 1 composite growth promoter:

[0012] According to the conventional culture method in this field, each microorganism is cultivated, and the slant medium is used to treat Bacillus subtilis, Bacillus amyloliquefaciens, Bordetella, Sinorhizobium, Pseudomonas alcaligenes, Nitrobacter, actinomycetes and Sporosporium thermophila is used for the culture of strains. After the cultivation is completed, liquid medium is used for expanded culture. After the expanded culture, the bacteria are collected and dried to prepare bacterial powders; each bacterial powder is compounded to obtain a composite microbial agent. The strain content is as follows: Bacillus subtilis 15%, Bacillus amyloliquefaciens 15%, Bordetella 15%, Sinorhizobium 15%, Pseudomonas alcaligenes 15%, Nitrobacter 5%, Actinomycetes 6 %, Dispospora thermophila 5%, additionally containing 8% aspartic acid potassium salt, gibberellin 1%; the total bacterial content in the bacterial preparatio...

Embodiment 2

[0013] Embodiment 2 field test

[0014] 2.1 Experimental design

[0015] This test is a field test, located in Zhuquan Village, Wangwu Town, Jiyuan City, Henan Province. The test variety is China Tobacco 100, and the test variety in Sanmenxia Pilot is China Tobacco 102. A total of 2 treatments (T1 and T2) were set up, the experiment was repeated 3 times, arranged randomly, and the area of ​​the plot was 0.2 mu. The specific treatment is as follows:

[0016] T1: conventional fertilization (control);

[0017] T2: conventional fertilization+embodiment 1 compound growth-promoting agent (10kg bacterial agent per mu);

[0018] Select 5 representative tobacco plants to be listed and determine plant height, stem girth, maximum leaf length and width, and effective leaf number in the tobacco field growth group stage, vigorous stage, and mature stage.

[0019] In the tobacco field growth period, vigorous period and maturity period, select representative tobacco plants (3 plants) for ...

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Abstract

The invention relates to a composite growth promoter. The microbial agent contains Bacillus subtilis, Bacillus amyloliquefaciens, Bordetella sp., Sinorhizobium sp., Pseudomonas alcaligenes, Nitrobacteriaceae, actinomycete, Sporotrichum thermophile, potassium aspartate and gibberellin. The growth promoter provided by the invention can be used for improving agronomic characters of tobacco such as plant height, stem girth, maximum leaf length, maximum leaf width and effective number of leaves; the growth promoter can also be used for improving the accumulation of amount of dry matters of the tobacco in parts such as roots, stems, leaves and the like; and the composite growth promoter provided by the invention can be used for improving the quality of growth of the tobacco.

Description

Technical field: [0001] The invention relates to a composite growth promoter for promoting tobacco growth. Background technique: [0002] Tobacco is one of the important economic crops in my country. Its planting area and total output rank first in the world, and the total output and sales of tobacco leaves account for about 30% of the world; however, with the change of cultivation conditions, the growth of tobacco is gradually affected. impact, resulting in huge economic losses. Soil is the basic condition that determines the yield and quality of tobacco. Soil structure, soil texture, nutrient status, irrigation and drainage, and ventilation are directly related to the quality and yield of tobacco leaves. Soil pH and depth of plow layer also affect the growth and development of tobacco roots. At present, the cultivation of tobacco crops in my country mainly relies on the large-scale application of chemical fertilizers and pesticides to maintain high yields of tobacco leaves...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/04C05G3/00C05G3/80
Inventor 黄海
Owner BEIJING SHENGDA LONGTENG TECH DEV
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