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Biostimulant compounded agent suitable for cotton, and preparation method and application of biostimulant compounded agent

A technology of biostimulants and compounding agents, applied in the field of agriculture, can solve problems such as singleness, salt tolerance not exceeding 0.3%, failure to clearly propose the preparation and application methods of biostimulant compounding agents, etc., to increase cotton production , Promote the growth of cotton plants and facilitate the transfer

Active Publication Date: 2019-10-25
INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Cotton is a relatively salt-tolerant crop, but its salt tolerance does not exceed 0.3%. Under saline-alkali stress conditions, cotton growth is severely inhibited (Mass and Hoffman, 1977), and high-salt stress and drought stress limit cotton yield. Still the primary problem to be solved is that the functions of the prior art (bio-stimulant) are all growth-promoting, and its preparation technology is also carried out around a single bio-stimulant, and no bio-stimulant compound suitable for cotton application and The method of preparation and application cannot answer the technical questions of how to apply the biostimulant compound in production to improve the growth of cotton plants, improve stress resistance, and coordinate vegetative growth and reproductive growth

Method used

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  • Biostimulant compounded agent suitable for cotton, and preparation method and application of biostimulant compounded agent
  • Biostimulant compounded agent suitable for cotton, and preparation method and application of biostimulant compounded agent
  • Biostimulant compounded agent suitable for cotton, and preparation method and application of biostimulant compounded agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A biostimulant complex agent suitable for cotton, which is made of the mass fraction of the following raw materials:

[0040]

[0041] The polyglutamic acid fermentation broth contains 10-15 wt% of polyglutamic acid.

[0042] A kind of preparation method of the biostimulant compound agent suitable for cotton, its steps are:

[0043] A. Utilize microbial fermentation to prepare a polyglutamic acid fermentation broth with a mass percentage of 10% to 15% (polyglutamic acid concentration is 10% to 15%), and after the fermentation, carry out ultraviolet inactivation to obtain a polyglutamic acid solution ;

[0044] B. Mineral source humic acid is reacted with potassium hydroxide or potassium oxide or potassium carbonate to prepare potassium humate that can be dissolved in water, and 22 kg of prepared potassium humate is dissolved in 15 kg of boiling water to obtain potassium humate solution;

[0045] C. Add 18kg of amino acid powder (containing one or more of glycine, p...

Embodiment 2 to Embodiment 7

[0050] A kind of biostimulant complex agent suitable for cotton, it is made of following raw material mass fraction (%):

[0051] Table 1

[0052]

[0053] Its preparation steps are identical with embodiment 1. The polyglutamic acid fermentation broth contains 10-15 wt% of polyglutamic acid.

[0054] Examples 2 to 7 are respectively a series of formulations prepared for different cotton production areas and different planting modes (direct seeding or transplanting) and cotton growth characteristics at different growth and development stages of cotton.

[0055] The biostimulant compound prepared by the above method can be used to spray the leaves of cotton plants after diluting a certain number of times. The application amount of each component per mu is shown in Table 2.

[0056]

[0057]

[0058] As in the embodiment 1 in the above table 2, amino acid, polyglutamic acid, potassium humate per mu actual use amount (g / mu) is calculated according to the following mann...

Embodiment 8

[0066] Application of a biostimulant compound suitable for cotton in the cotton seedling stage in the cotton area of ​​the Yellow River Basin:

[0067] In 2016, in a cotton field in the Yellow River Basin, a field plot experiment was adopted, with 5 treatments, each treatment repeated 4 times, and each test plot was 20m 2 . The test carried out foliar spraying in the 3 blade stages, and 5 test plots adopted respectively the biostimulant compound (800 times of dilution application) of embodiment 2, potassium fulvic acid (test concentration 0.50g / L), amino acid (application The concentration is 0.33g / L), polyglutamic acid (application concentration is 0.10g / L), clear water, spray 2 times, each interval is 7 days, the amount of water used for spraying per mu is 15kg, and other field management methods are the same. Sampling was carried out 15 days after spraying once, and the cotton plant height, stem diameter and leaf area were measured, and the dry matter was measured. The res...

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Abstract

The invention discloses a biostimulant compounded agent suitable for cotton, and a preparation method and application of the biostimulant compounded agent. The biostimulant compounded agent consists of amino acids, polyglutamic acid, potassium humate and water. The preparation method comprises the following steps: 1) carrying out fermenting to prepare a polyglutamic acid fermentation liquor, and then carrying out ultraviolet inactivation; 2) preparing potassium humate capable of being dissolved in water; 3) adding amino acid powder into a polyglutamic acid solution; and 4) adding the preparedpotassium humate into the solution obtained in the step 3), and carrying out emulsifying by an ultrasonic oscillator to form a suspended biostimulant compound. Foliage spray is carried out for 1-2 times by using the biostimulant compounded agent at a seedling stage, and then seedlings can be protected and strengthened; foliage spray is carried out for 1-2 times at a bud stage, and then budding canbe promoted; foliage spray is carried out for 1-2 times on at a flowering stage, and then falling of flower buds can be reduced; foliage spray is carried out for 2-3 times at a boll maturation stage,and then growth of cotton bolls can be promoted, and the single boll weight is increased; and foliage spray is carried out for 3-4 times at a full growing stage, so that growth of cotton plants can be promoted, stress resistance is improved, balance between nutrition growth and reproduction growth is adjusted, the boll-forming amount in a single plat is increased, and the yield is improved.

Description

technical field [0001] The invention belongs to the field of agricultural technology, and more specifically relates to a biostimulant compound suitable for cotton, and also relates to a preparation method of the biostimulant compound suitable for cotton, and its application on cotton. Background technique [0002] Biostimulant is a general term for various substances and microorganisms that can promote plant growth, mainly including: microbial inoculants, humic acid, fulvic acid, chitin and chitosan derivatives, protein hydrolyzate and amino acids, seaweed extract etc.; it is widely used in fruits and vegetables. In recent years, the market value of global biostimulant products will grow at an average annual rate of 300-600 million US dollars. See: Pamela Calvo, Louise Nelson, Joseph W.Kloepper.Agricultural uses of plant biostimulants[J]. Plant and Soil, 2014, 33:3-41; , Feng Xiaoliang, Lv Dongbo. Application status and development prospects of biostimulants in agriculture ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N61/00A01N37/46A01N37/44A01P21/00C05G3/00A01G22/50A01G7/06
CPCA01N61/00A01N37/46A01N37/44C05C11/00C05G3/00A01G22/50A01G7/06C05G5/27Y02A40/10
Inventor 郑苍松董合林李鹏程孙淼贵会平
Owner INST OF COTTON RES CHINESE ACAD OF AGRI SCI
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