Method for increasing water use efficiency of drought mixed matrix lawn plants by adopting rare-earth cerium

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

Inactive Publication Date: 2012-08-01
TIANJIN NORMAL UNIVERSITY
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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

Method used

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  • Method for increasing water use efficiency of drought mixed matrix lawn plants by adopting rare-earth cerium
  • Method for increasing water use efficiency of drought mixed matrix lawn plants by adopting rare-earth cerium
  • Method for increasing water use efficiency 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 medium for lawn planting. 2kg of mixed culture medium soil contains 300 mg / Kg of rare earth cerium, and the sowing density is 40.0g / 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) of the maximum field water holding capacity, 60% (weight) for moderate stress, and 40% (weight) for severe stress;

[0078] (3) The culture conditions are as follows: at a humidity of 68%, light during the day, a temperature of 22°C, and a temperature of 18°C ​​at night, culture for 40 days, and a light intensity of 850 μmol m -2 the s -1 ;

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

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: at a humidity of 68%, light during the day, a temperature of 25°C, and a temperature of 20°C at night, culture for 60 days, and a light intensity of 900 μmol m -2 the s -1 ;

[0084] (4) During the establishment of the lawn plant tall fescue, it is carried out according to the management requirements of ordinary lawn plants; after the tall...

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Abstract

The invention relates to a method for increasing the water use efficiency 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 soil 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 water use efficiency 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 lawn construction, in particular to a method and application of using rare earth cerium to improve the water use efficiency of arid mixed waste composting matrix 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 secondary dust, and can also reduce wind speed and prevent dust. Turf has th...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G7/00
Inventor 多立安赵树兰滕萌
Owner TIANJIN NORMAL UNIVERSITY
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