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Purple soil tobacco root conditioning product and preparation method and application thereof

A purple soil and root system technology, applied in botany equipment and methods, applications, fertilization methods, etc., can solve the problems of no purple soil flue-cured tobacco root growth conditioning products, unstable effect, and low nutrient supply, so as to improve nutrient utilization Efficiency, beneficial absorption, and the effect of promoting lateral root growth

Active Publication Date: 2016-12-07
SOUTH CHINA AGRI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent (publication number: CN103820125A) discloses smoke-planting purple soil improver and its application method. In this patent, polyacrylamide and weathered coal are mixed and granulated, and the soil is improved by improving the ventilation of the soil. , The lack of nutrient supply leads to its deficiencies
Chinese patent (publication number: CN103102216A) has reported the coating fertilizer and preparation thereof of inducing root growth, has the adding of root-promoting substance sodium nitrophenolate, naphthalene acetic acid etc., and field test shows, this patent can't be used for flue-cured tobacco on Nanxiong purple soil. Significantly promotes root growth
Chinese patent (publication number: CN104892177A) discloses a special microbial fertilizer for apple trees, which directly sprays the microbial liquid on the surface of the fertilizer core. After the fertilizer core dissolves, the salt stress inactivation of the microbial bacteria may be caused. Therefore, in the field application, there is a problem of unstable effect
[0005] At present, in view of the above problems and the domestic situation, there is no report on the root growth conditioning products of purple soil flue-cured tobacco in Nanxiong City, Guangdong Province

Method used

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  • Purple soil tobacco root conditioning product and preparation method and application thereof
  • Purple soil tobacco root conditioning product and preparation method and application thereof
  • Purple soil tobacco root conditioning product and preparation method and application thereof

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preparation example Construction

[0058] The preparation of chitosan degradation liquid: with 5% chitosan liquid (this chitosan is agricultural grade chitosan, purchased from Zhaoqing Changlong Biotechnology Co., Ltd.), concentration is the hydrogen peroxide solution of mass percentage 30%, concentration The glacial acetic acid solution with a mass percentage of 99.5% was mixed in a volume ratio of 4:1:1, heated in a water bath at 40°C at a constant temperature, and fully stirred for 7 hours to obtain a chitosan degradation solution. The average molecular weight of the degraded chitosan measured by the potassium ferricyanide color method is 3500 Da, and the content of the obtained low molecular weight chitosan solution is 3.3%.

[0059] Preparation of seaweed extract: crush fresh kelp to make a homogenate, add PPC compound enzyme according to the mass ratio of homogenate:PPC compound enzyme = 10000:2, carry out shaking enzymolysis at 48-50°C, centrifuge for 4 hours to obtain the above The clear liquid is the s...

Embodiment 1

[0060] Embodiment 1: product preparation

[0061] The analysis results of typical soil samples of purple soil in Nanxiong City, Guangdong Province are as follows: pH value is 7.94, alkaline nitrogen content is 58.22mg / kg, available phosphorus is 34.98mg / kg, available potassium is 70.42mg / kg, available calcium is 1.65g / kg, Available magnesium 2.1g / kg, available iron 5.51mg / kg, available manganese 1.32mg / kg, available zinc 0.92mg / kg, available copper 0.63mg / kg, available boron 0.17mg / kg, organic matter content 1%.

[0062] According to the above-mentioned soil nutrient content index, combined with the preferred proportioning range in Table 1 national soil census standards and claims, prepare by 9 kg fertilizer core weight:

[0063] (1) Potassium nitrate 1964g, potassium dihydrogen phosphate 2633g, urea-formaldehyde urea 460g, potassium alginate 1145g, calcium nitrate 800g, magnesium sulfate heptahydrate 1430g, EDTA-zinc 224g, EDTA-copper 63g, EDTA-iron 67g, 68g of EDTA-manganes...

Embodiment 2

[0070] Embodiment 2: pot experiment

[0071] The test location: the network room of South China Agricultural University. In order to observe the complete root system condition after the application of Nanxiong purple soil flue-cured tobacco root system conditioning products, use the method of pot test to study the root system, set the control treatment and embodiment 1 to prepare and apply the root system conditioning products (being the experimental group) to process, the root system conditioning of the present invention The treatment method of agent: (1) Sow the seeds of Yueyan 97 in the seedling tray for floating seedling cultivation, and start transplanting when the tobacco seedlings grow to four leaves and one heart, and then apply the root conditioning product prepared in Example 1 to the tobacco seedlings For the roots, apply 20 grains per plant (about 0.15~0.20g per grain), and apply about 15kg per mu; (2) in the mass barley stage, apply the root conditioning product o...

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Abstract

The invention discloses a purple soil tobacco root conditioning product and a preparation method and application thereof. The product is composed of a fertilizer core, an organic nutrient layer and a composite microbe layer arranged sequentially from inside to outside; the effective ingredients in the fertilizer core include macro elements, nitrogen, phosphorus and potassium, medium elements, calcium, magnesium and sulfur, and trace elements; nutrients in the organic nutrient layer include seaweed extract and low molecular weight chitosan; the composite microbes include Bacillus subtilis, Bacillus amyloliquefaciens and Bacillus mucilaginosus. The effective ingredients in the fertilizer core are mixed with a binder and granulated; granules are then covered with the mixture of the nutrients and binder to form the organic nutrient layer; the binder is then sprayed, the composite microbes are sprayed, and the composite microbe layer is formed. By applying the product to tobacco planting, it is possible to shorten the time of seedling restitution stage, root density and specific root length are increased, tobacco yield is significantly increased, and tobacco quality is improved.

Description

technical field [0001] The invention relates to a compound regulator for plant root growth, in particular to a root conditioning product for purple soil flue-cured tobacco and its preparation method and application. Background technique [0002] Tobacco is an important economic crop. The purple soil in Nanxiong City, Guangdong Province is used as the tobacco-growing soil with southern characteristics, mainly producing Luzhou-flavored flue-cured tobacco. According to domestic scholars' reports: Nanxiong purple soil has the characteristics of thin soil layer, easy compaction, poor water and fertilizer retention capacity, and low organic matter content, which leads to poor growth of tobacco roots, which in turn affects the yield and quality of flue-cured tobacco. [0003] Accurate soil nutrient content determination is conducive to rational fertilization. At the same time, rational application of bacterial fertilizers can not only improve soil fertility, but also improve soil r...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/00A01G1/00A01C21/00C05G3/80
CPCA01C21/007A01G22/00C05B7/00C05G3/00C05G3/80C05G5/30C05C3/00C05C5/02C05C5/04C05C9/02C05D1/00C05D5/00C05D9/02C05F11/00C05F11/08
Inventor 沈宏祁帅
Owner SOUTH CHINA AGRI UNIV
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