Method for using cerium to improve chlorophyll fluorescence dynamic of ryegrass in arid environments

A technology of chlorophyll fluorescence and ryegrass, applied in the field of ryegrass chlorophyll fluorescence power, can solve the problems of slow growth, affecting the survival rate of turfgrass plants, and failure of turfgrass establishment.

Inactive Publication Date: 2012-07-25
TIANJIN NORMAL UNIVERSITY
View PDF3 Cites 6 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for using cerium to improve chlorophyll fluorescence dynamic of ryegrass in arid environments
  • Method for using cerium to improve chlorophyll fluorescence dynamic of ryegrass in arid environments
  • Method for using cerium to improve chlorophyll fluorescence dynamic of ryegrass in arid environments

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (1) Sow ryegrass seeds on the garden soil for lawn construction. 140g of garden soil contains 500 mg / Kg of cerium nitrate, and the sowing density is 35.0g / m 2 , In the initial stage of sowing, adequate watering is required to ensure the smooth germination of seeds and the initial growth of seedlings;

[0051] (2) Then start to measure the chlorophyll fluorescence kinetic parameters under normal water supply after 3 weeks; then control the water so that the water content reaches the moderate drought stress level, and measure the chlorophyll fluorescence kinetic parameters again after 7 days; then control the water to reach Under severe drought stress, chlorophyll fluorescence kinetic parameters were measured for the last time after 7 days under severe drought stress. The quantitative water supply of the degree of stress mentioned therein refers to: using the weighing method to control the maximum field water holding capacity of 70% (weight) of normal water supply, 55% (w...

Embodiment 2

[0055] (1) Sow ryegrass seeds on the garden soil for lawn construction, 180g contains 300 mg / Kg of cerium nitrate, and the sowing density is 45.0g / m3. At the initial stage of sowing, water fully to ensure smooth germination of seeds and early growth of seedlings ;

[0056] (2) Then start to measure the chlorophyll fluorescence kinetic parameters under normal water supply after 3 weeks; then control the water so that the water content reaches the moderate drought stress level, and measure the chlorophyll fluorescence kinetic parameters again after 7 days; then control the water to reach Under severe drought stress, chlorophyll fluorescence kinetic parameters were measured for the last time after 7 days under severe drought stress.

[0057] The quantitative water supply of the degree of stress mentioned therein refers to: using the weighing method to control the maximum field water holding capacity of 80% (weight) for normal water supply, 55% (weight) for moderate, and 35% (weig...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a method for using cerium to improve chlorophyll fluorescence dynamic of ryegrass in arid environments, which includes: sowing seeds of ryegrass on garden soil for establishing a lawn, 100-200g of the garden soil containing 200mg / Kg-800mg / kg cerous nitrate, and starting measuring chlorophyll fluorescence dynamical parameters under normal water supply after three weeks; controlling water to enable the water content to reach medium drought stress degree, and measuring the chlorophyll fluorescence dynamical parameters again after 7 days; and controlling the water to reach the severe drought stress degree, and measuring the chlorophyll fluorescence dynamical parameters for the last time 7 days after severe drought stress. Plant chlorophyll fluorescence dynamics is a novel technique, which is quick, simple, convenient and accurate for detecting plant photosynthetic physiological conditions without injury of whole plants.

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 for improving ryegrass chlorophyll fluorescence power in arid environment by using cerium. 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 to absorb CO in the air 2 , ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01G7/06A01N59/16A01P21/00
Inventor 多立安赵树兰滕萌
Owner TIANJIN NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap