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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, 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 system activity, slow growth, etc.

Inactive Publication Date: 2012-08-01
TIANJIN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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  • 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) Sown ryegrass on the mixed medium for turf establishment, 2kg mixed medium soil contains 300 mg / Kg of rare earth cerium, and the seeding density is 35.0g / m 2 , In the early stage of sowing, each pot should be fully watered to ensure the smooth germination of seeds and the early growth of seedlings;

[0077] (2) After three weeks, water is quantified according to the degree of stress, and water is weighed every one to two days to maintain within the stress range; the quantified water supply according to the degree of stress refers to the use of weighing method to control normal water supply. 70% (weight) of the maximum field water holding capacity, moderately 65% ​​(weight), severely 35% (weight);

[0078] (3) The conditions of cultivation are as follows: humidity is 68%%, light is applied during the day, the temperature is 22℃, the temperature at night is 18℃, the culture is 40 days, the light intensity is 800 μmol m -2 s -1 ;

[0079] (4) Lawn plant ryegrass is establishe...

Embodiment 2

[0081] (1) Sow the turfgrass tall fescue seeds on the mixed culture medium for turf establishment, 2kg of mixed culture medium contains rare earth cerium 500 mg / Kg, 45.0g / m 2 ;In the early stage of sowing, each pot should be fully watered to ensure the smooth germination of seeds and the initial growth of seedlings;

[0082] (2) After three weeks, water is quantified according to the degree of stress, and water is weighed every one to two days to maintain within the stress range; the quantified water supply according to the degree of stress refers to the use of weighing method to control normal water supply. 80% (weight) of the maximum field water holding capacity, 55% (weight) for moderate and 40% (weight) for severe;

[0083] (3) The conditions of cultivation are: the humidity is 68%, the light is applied during the day, the temperature is 26℃, the temperature at night is 22℃, the culture is 60 days, the light intensity is 900 μmol m -2 s -1 ;

[0084] (4) The turf plant tall fescu...

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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 lawn planting, in particular to a method and application for using rare earth cerium to improve the photosynthetic capacity of arid mixed substrate lawn plants. Background technique [0002] As an ecosystem, the lawn is a huge carbon source storage. The grassland soil in the world can absorb and deposit 0.01~0.3Gt carbon every year. Therefore, CO in the air is reduced 2 , To reduce the greenhouse effect to a certain extent. Secondly, the dense ground cover and grass root layer formed by the lawn have a good effect of preventing soil erosion; the lawn can also reduce the daily temperature difference on the ground, so it can effectively reduce the soil avalanche caused by the "frost heave" of the soil. The lawn has a huge dust absorption capacity, which can effectively prevent secondary dust, and can also reduce wind speed and prevent dust. Lawn has the ability to ...

Claims

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Application Information

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