Method for increasing photosynthetic capacity of drought mixed matrix lawn plants by adopting rare-earth cerium

A technology of mixed substrate and rare earth cerium is applied in the field of rare earth cerium in urban lawn planting, which can solve the problems of slow growth, affecting the survival rate of lawn plants, and failure of lawn planting.

Inactive Publication Date: 2013-05-08
TIANJIN NORMAL UNIVERSITY
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  • Claims
  • Application Information

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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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  • Method for increasing photosynthetic capacity of drought mixed matrix lawn plants by adopting rare-earth cerium
  • Method for increasing photosynthetic capacity of drought mixed matrix lawn plants by adopting rare-earth cerium
  • Method for increasing photosynthetic capacity of drought mixed matrix lawn plants by adopting rare-earth cerium

Examples

Experimental program
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Effect test

Embodiment 1

[0076] (1) Sow ryegrass on the mixed culture substrate for lawn establishment. 2kg of mixed culture substrate soil contains 300 mg / Kg of rare earth cerium, and the sowing density is 35.0g / m 2 At the initial stage of sowing, water each pot fully to ensure the smooth germination of the seeds and the initial growth of the seedlings;

[0077] (2) After three weeks, water should be given quantitatively according to the degree of stress, and then weighed and watered every two days to maintain within the range of stress. 70% (weight) field maximum water holding capacity, medium is 65% (weight), heavy is 35% (weight);

[0078] (3) The culture conditions are as follows: the humidity is 68%, the daytime is illuminated, the temperature is 22°C, and the nighttime temperature is 18°C, cultured for 40 days, and the light intensity is 800 μmol m -2 the s -1 ;

[0079] (4) The lawn plant ryegrass is established according to the management requirements of ordinary lawn plants; after the rye...

Embodiment 2

[0081] (1) Sow the lawn plant tall fescue seeds on the mixed culture medium for lawn planting. 2kg of mixed culture medium soil contains rare earth cerium 500 mg / Kg, 45.0g / m 2 ;In the initial stage of sowing, water each pot fully to ensure the smooth germination of seeds and the initial growth of seedlings;

[0082] (2) After three weeks, water should be given quantitatively according to the degree of stress, and then weighed and watered every two days to maintain within the range of stress. 80% (weight) field maximum water holding capacity, medium is 55% (weight), heavy is 40% (weight);

[0083] (3) The culture conditions are as follows: the humidity is 68%, the daytime is illuminated, the temperature is 26°C, and the nighttime temperature is 22°C, cultured for 60 days, and the light intensity is 900 μmol m -2 the s -1 ;

[0084] (4) The lawn plant tall fescue is established according to the management requirements of ordinary lawn plants; after the tall fescue grows to 50...

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Abstract

The invention relates to a method for increasing the photosynthetic capacity of drought mixed matrix lawn plants by adopting rare-earth cerium. The method comprises the step of sowing seeds of the lawn plants on a mixed culture matrix for lawn planting, wherein 200mg / Kg-800mg / Kg of rare-earth cerium is contained in 1.5-2kg of mixed culture matrix soil and the mixed culture matrix is the compost of soil and municipal solid waste in a weight part ratio of 4:(1-2). According to the method provided by the invention, a certain amount of rare-earth cerium is applied, so that the photosynthetic rate of the lawn plants can be obviously increased. The application of the technology is expected to realize a high-efficiency and low-cost operating mode in large-area urban lawn planting.

Description

technical field [0001] The invention relates to the application of rare earth cerium in the technical field of urban turf planting, in particular to a method and application of using rare earth cerium to improve the photosynthetic capacity of lawn plants in arid mixed substrates. 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 secondary dust, and can also reduce wind speed and prevent dust. Turf has the ability t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00
Inventor 多立安赵树兰滕萌
Owner TIANJIN NORMAL UNIVERSITY
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