Applications of rare earth Cerium in improving root growth rate and chlorophyll content of lawn plants

A technology of chlorophyll content and plant root system is applied in the application field of rare earth cerium in improving the root growth and chlorophyll content of turfgrass plants, and can solve the problems of slow growth, failure of turfgrass establishment, affecting the survival rate of turfgrass plants, etc.

Inactive Publication Date: 2012-07-25
TIANJIN NORMAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

Lawn plants have weak root activity in the seedling stage, and the growth of the aboveground parts is slow, and the characteristics of weak early growth of lawn plants often make lawn plants in a disadvantaged position in the competition with weeds in the early stage of growth. Such results can lead to Lawn planting failure; in addition, under the environmental conditions of drought and water shortage, the phenomenon that lawn plants are at a disadvantage in the early stage of growth is particularly prominent in the competition with weeds; this directly affects the survival rate of lawn plants; The biggest difficulty in the application of planting in practice, that is, the problem of lawn planting experiencing technical "bottleneck" constraints

Method used

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  • Applications of rare earth Cerium in improving root growth rate and chlorophyll content of lawn plants
  • Applications of rare earth Cerium in improving root growth rate and chlorophyll content of lawn plants
  • Applications of rare earth Cerium in improving root growth rate and chlorophyll content of lawn plants

Examples

Experimental program
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Effect test

Embodiment 1

[0051] (1) The soil was dried, mixed and sieved, and then 200 mg·Kg-1 rare earth cerium was applied to 20 g of soil matrix;

[0052] (2) Select ryegrass seeds of two lawn plants with full grains and sow them in petri dishes containing substrates respectively, and cultivate them in an artificial climate box. The light time is from 7:00 to 18:30, and the daytime temperature is set at 23-25°C. , 18-20°C at night; relative humidity is 60%. Sufficient water supply should be provided during the cultivation period, and the substrate should be kept moist but not waterlogged until the end of the experiment.

Embodiment 2

[0054] (1) The soil was dried, mixed and sieved, and then 400 mg·Kg-1 rare earth cerium was applied to 20 g of soil matrix;

[0055] (2) Select tall fescue seeds of two lawn plants with full grains and sow them in petri dishes containing substrates, and cultivate them in an artificial climate box. The light time is from 7:00 to 18:30, and the daytime temperature is set at 23-25. ℃, 18-20℃ at night; relative humidity is 50%. Sufficient water supply should be provided during the cultivation period, and the substrate should be kept moist but not waterlogged until the end of the experiment.

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Abstract

The invention relates to applications of the rare earth Cerium in improving root growth rate and chlorophyll content of lawn plants, especially in the latter, wherein the amount of Cerium is preferably 400mg.Kg<-1>. The application comprises the following steps: drying, mixing and sieving soil, applying 50-800mg.Kg<-1> of Cerium to the soil substrate, individually sowing lawn plant seeds in petri dishes which contain the substrate, cultivating the plants in an artificial climate incubator, and maintaining adequate water supply till the end of the experiment. According to the invention, the addition of a certain amount of rare earth can obviously improve the root growth rate and the chlorophyll content of lawn plants, and application of the technique is expected to realize efficient and low-cost operation mode in large-area lawn culture in cities.

Description

technical field [0001] The invention relates to the application of rare earth cerium in improving the root growth and chlorophyll content of lawn plants. The application of this technology can improve the initial growth potential of lawns, enhance the competitiveness of lawn plants and weeds, and increase the root growth and chlorophyll content of lawn plants. Background technique [0002] As an ecosystem, lawn is a huge carbon source storehouse, and grassland soil in the world can absorb and deposit 0.01-0.3Gt of carbon every year. thus reducing CO in the air 2 to reduce the greenhouse effect to a certain extent. Secondly, the dense surface covering layer and grass root layer formed by the turf have a good effect on preventing soil erosion; the turf can also reduce the daily temperature difference on the surface, so it can effectively reduce the soil collapse caused by "frost heave". The lawn has a huge ability to absorb floating dust, which can effectively prevent secon...

Claims

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Application Information

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IPC IPC(8): A01G9/10A01N59/16A01P21/00
Inventor 多立安赵树兰滕萌
Owner TIANJIN NORMAL UNIVERSITY
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