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A biostimulant compound suitable for cotton, its preparation method and application

A technology of biostimulants and compounding agents, applied in the field of agriculture, can solve problems such as single, failure to clearly propose the method of preparation and application of biostimulant compounding agents, and salt tolerance not exceeding 0.3%.

Active Publication Date: 2021-12-03
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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  • A biostimulant compound suitable for cotton, its preparation method and application
  • A biostimulant compound suitable for cotton, its preparation method and application
  • A biostimulant compound suitable for cotton, its preparation method and application

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 complex agent suitable for cotton, a preparation method and application thereof. The biostimulant compound is composed of amino acid, polyglutamic acid, potassium humate and water, and its preparation steps are: 1) ferment and prepare polyglutamic acid fermentation liquid, and then carry out ultraviolet inactivation; 2) prepare soluble in Potassium humate in water; 3) Add amino acid powder to the polyglutamic acid solution; 4) Add the prepared potassium humate to the solution in 3, and emulsify with an ultrasonic oscillator to form a suspended biostimulant compound . The biostimulant compound is sprayed 1-2 times on the foliage at the seedling stage to keep the seedlings strong; spraying 1-2 times on the foliage at the bud stage can promote bud emergence; spraying 1-2 times on the foliage at the flowering stage, It can reduce the shedding of flower buds; spray 2-3 times on the leaves of the boll stage, which can promote the development of cotton bolls and increase the weight of a single boll; spray 3-4 times on the leaves of the whole growth, can promote the growth of cotton plants, improve stress resistance, and adjust nutrition Balance growth and reproductive growth, increase the number of bolls per plant, and increase yield.

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 Patents(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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