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Method for improving lead resistance of endive by applying photosynthetic bacteria

A technology of photosynthetic bacteria and lettuce, applied in horticultural methods, botanical equipment and methods, applications, etc., can solve the problems of small root mass, small biomass, and slow growth of lettuce, and achieve the relief of less root mass, photosynthetic Enhanced function and easy operation

Active Publication Date: 2014-07-02
新胜利工业集团有限公司
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AI Technical Summary

Problems solved by technology

Chickweed is a lead-enriching plant, which can remove lead from the soil by plant extraction. However, the poisoning effect of lead makes Chickpea have less roots, slow growth, and low biomass.

Method used

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Examples

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Effect test

Embodiment

[0018] The method is suitable for improving the lead tolerance and yield of the lettuce in the soil where the lead pollution concentration is lower than 1200mgPb / kg soil.

[0019] Before sowing the lettuce, dilute the original solution of photosynthetic bacteria agent 20 times to soak the seeds. Since the one-leaf-one-heart period, the chlorophyll content of lettuce was monitored weekly. The method is: select 3-5 typical plants in the group, select the fully expanded leaves at the uppermost node, according to Chen Jianxun (Edited by Chen Jianxun, "Plant Physiology Experiment Guide (Second Edition)", South China University of Technology Press, page 87 ) method for the determination of chlorophyll content. If the chlorophyll content is around 0.6mg / L, it means that the plant growth is relatively normal at this time, and it is not necessary to spray photosynthetic bacteria agent, or spray 0.1mol / L calcium chloride solution on the leaves once during the vigorous growth period, 24...

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Abstract

The invention relates to a method for improving lead resistance of endive by applying photosynthetic bacteria, in particular to a method for improving adversity of soil. Photosynthetic bacteria bactericide stock solution is taken and diluted for 20 times for presoaking before the endive is sowed, and the chlorophyll content is monitored weekly from a single-leaf period. The method comprises the following steps: selecting 3-5 typical plants in a group, selecting laminas the uppermost part positions of which are completely expanded, measuring the chlorophyll content, if the chlorophyll content is about 0.6mg / L, no spraying photosynthetic bacteria bactericide, or taking 0.1mol / L of calcium chloride solution for spaying the lamina surface for one time in a strong growth period, and taking and diluting the photosynthetic bacteria bactericide stock solution for 20 times for spraying for one time after 24 hours. The method is simple and convenient in operation, indication character indexes in a use period are precise and clear, the phenomena of less number of roots, slow growth, weak and small aboveground part, and the like due to lead poisoning are effectively alleviated, and the yield-increasing effect is obvious.

Description

technical field [0001] The invention relates to a method for improving soil adversity, in particular to a method for applying photosynthetic bacteria to improve the lead tolerance of lettuce. Background technique [0002] Lead has low solubility in soil and long residence time, and is a non-degradable environmental pollutant. Soil lead pollution in my country is large and widespread. With the rapid development of highway construction, the extensive use of leaded gasoline, improper disposal of urban sewage and garbage, unreasonable discharge of "three wastes" produced by industrial production, pesticides, herbicides and The use of chemical fertilizers and the abandoned land caused by mining have made soil lead pollution more and more serious. [0003] Lead is not an essential element for the growth and development of animals and plants. Lead passively enters plant roots, bark or leaves and accumulates, causing plant damage. The effect of Pb on the growth of plant roots is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01G7/06
Inventor 邵双邵贤郭晓雷
Owner 新胜利工业集团有限公司
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