CN108152228A - A kind of method that biennial Radix Notoginseng leaf-nitrogen of Rapid identification is had more than needed - Google Patents

A kind of method that biennial Radix Notoginseng leaf-nitrogen of Rapid identification is had more than needed Download PDF

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Publication number
CN108152228A
CN108152228A CN201711290188.8A CN201711290188A CN108152228A CN 108152228 A CN108152228 A CN 108152228A CN 201711290188 A CN201711290188 A CN 201711290188A CN 108152228 A CN108152228 A CN 108152228A
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nitrogen
radix notoginseng
content
biennial
soil
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Inventor
陈军文
张金燕
寸竹
范伟
杨生超
张广辉
龙光强
董益
张强皓
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Yunnan Agricultural University
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Yunnan Agricultural University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry

Abstract

The invention discloses notoginseng planting technical fields, specific field is the method that a kind of biennial Radix Notoginseng leaf-nitrogen of Rapid identification is had more than needed, 1) for the analysis of examination soil nutrient content, 2) selection and transplanting of biennial Radix Notoginseng seed item, 3) biennial Radix Notoginseng N fertilization, 4) measure of SPAD values, 5) management and 6) measure of nitrogen content and its leaf area, regression analysis is carried out according to the SPAD values under biennial Radix Notoginseng blade difference amount of nitrogen and corresponding unit leaf area nitrogen content (SLN) data and establishes equation of linear regression, so as to judge affiliated ranges of SPAD that Radix Notoginseng nitrogen is had more than needed, it is rapidly identified to have more than needed to biennial Radix Notoginseng leaf-nitrogen, so as to rationally scientifically apply fertilizer, final raising Radix Notoginseng plant deposits seedling rate, yield and quality.

Description

A kind of method that biennial Radix Notoginseng leaf-nitrogen of Rapid identification is had more than needed
Technical field
The present invention relates to notoginseng planting technical field, specific field is rich for a kind of biennial Radix Notoginseng leaf-nitrogen of Rapid identification Remaining method.
Background technology
Radix Notoginseng is Araliaceae Panax herbaceos perennial also known as invaluable, blood ginseng and pseudo-ginseng etc., with root and root-like stock It is used as medicine, is China's tradition rare traditional Chinese medicine, in the course of cultivation, the cultivation to be standardized by the water and fertilizer management of science carries High Radix Notoginseng plant deposits seedling rate, the important link of yield and quality.
Nitrogen is the required one of the chief elements of Panax notoginseng Growth development institute, and Radix Notoginseng has more than needed to nitrogen very sensitive, and nitrogen, which is had more than needed, to be made Radix Notoginseng deposits the decline of seedling rate, and root tuber biomass is reduced, and the root rot incidence that rust crack mouth induces rises, and can reduce Rg1 saponin(es and contain Amount, reduces total saponin content, and chlorophyll is that plant carries out photosynthetic main photosynthetic pigments, and content height can conduct Plant physiology is studied and the important evidence of evaluation plant nitrogen nutrition situation, and chlorophyll content can be according to plant in different growths SPECTRAL DIVERSITY under state is measured with chlorophyll meter, reflects leaf chlorophyll phase by sensing the difference of leaves of plants color value To content, measurement result is known as SPAD values, has been widely used in the diagnosis and evaluation of crop nitrogen nutrition situation, the present invention It is carried out according to the SPAD values under biennial Radix Notoginseng blade difference amount of nitrogen and corresponding unit leaf area nitrogen content (SLN) data Regression analysis simultaneously establishes equation of linear regression, so as to judge affiliated ranges of SPAD that Radix Notoginseng nitrogen is had more than needed, so as to biennial three Seven leaf-nitrogens are had more than needed and are rapidly identified, so as to rationally scientifically apply fertilizer.
Invention content
The purpose of the present invention is to provide the method that a kind of biennial Radix Notoginseng leaf-nitrogen of Rapid identification is had more than needed, in solution State the problem of being proposed in background technology.
To achieve the above object, the present invention provides following technical solution:A kind of biennial Radix Notoginseng leaf-nitrogen of Rapid identification Method more than needed, method include the following steps:
1) for the analysis of examination soil nutrient content:To soil with organic matter content, total nitrogen content, ammonium nitrogen content, quick-acting Phosphorus content, content of tatal phosphorus, quick-acting potassium content, full potassium content and soil pH value are measured;
2) selection and transplanting of biennial Radix Notoginseng seed item:Selection is without rust, robust growth and uniform biennial three Seven seed items, it is 16~17cm to transplant in back cut diameter, and base diameter is 10~12cm, in the flowerpot of a height of 13~15cm, is placed in In the shade of 8%~12% light transmittance, the processing of low nitrogen, middle nitrogen and the fertilising of high nitrogen is carried out after the emergence of seed item;
3) biennial Radix Notoginseng N fertilization:The application of nitrogenous fertilizer is divided into 4 periods, respectively April, June, July With August part, low nitrogen processing is according to 0kg/hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio of O is applied fertilizer, at middle nitrogen Reason is according to 38.64kg/hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio fertilising of O, the processing of high nitrogen according to 77.28kg/hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio fertilising of O;
4) measure of SPAD values:The biennial sanchi leaf handled using SPAD-502 Chlorophyll meters nitrogen in step 3) The SPAD values of piece are measured;
5) it manages:Biennial Radix Notoginseng water regime is checked in fine day, and moisturizing is carried out using the spray irrigation system installed in greenhouse, Soil moisture is maintained at 25%~30%;Rainy day notices seeing whether that, there are sufferer Radix Notoginseng, discovery has sufferer Radix Notoginseng to remove in time;
6) measure of nitrogen content and its leaf area:Leaf total nitrogen content is measured using Kjeldahl's method, each processing takes 6 Then the average value of~8 replication values is surveyed the leaf area of respective vanes with the portable leaf area instrument of LI-3000C It is fixed.
Preferably, soil organic matter content described in step 1) is measured by organic matter photometry, and the total soil nitrogen contains Amount is measured by azotometer, and the soil ammonium content is measured by spectrophotometry, the soil quick-effective phosphor and the soil Earth content of tatal phosphorus is measured by molybdenum antimony resistance colorimetric method, and the Soil Available potassium content and the total potassium content of soil pass through flame light Degree method measures, and the P in soil H values are counted by PH and measured.
Preferably, biennial Radix Notoginseng seed transplanting time described in step 2) is in January.
Preferably, the minute of step 4) the SPAD values is in July.
The beneficial effects of the invention are as follows:A kind of method that biennial Radix Notoginseng leaf-nitrogen of Rapid identification is had more than needed, according to 2 years SPAD values and corresponding unit leaf area nitrogen content (SLN) data under raw sangqi ginseng blade difference amount of nitrogen carry out regression analysis And equation of linear regression is established, so as to judge affiliated ranges of SPAD that Radix Notoginseng nitrogen is had more than needed, so as to biennial Radix Notoginseng Leaf N Element is more than needed rapidly to be identified, so as to rationally scientifically apply fertilizer, final raising Radix Notoginseng plant deposits seedling rate, yield and quality.
Description of the drawings
Fig. 1 is the relationship of chlorophyll content of the present invention (SPAD) and unit leaf area nitrogen content (SLN);
Fig. 2 is the death rate that the present invention is high, neutralizes biennial Radix Notoginseng under low nitrogen processing.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme of the present invention is clearly and completely described, it is clear that institute The embodiment of description is only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, Those of ordinary skill in the art's all other embodiments obtained without making creative work, belong to this hair The range of bright protection.
Embodiment 1:
1) for the analysis of examination soil nutrient content:To soil with organic matter content, total nitrogen content, ammonium nitrogen content, quick-acting Phosphorus content, content of tatal phosphorus, quick-acting potassium content, full potassium content and soil pH value are measured;
2) selection and transplanting of biennial Radix Notoginseng seed item:Selection is without rust, robust growth and uniform biennial three Seven seed items, it is 16cm, base diameter 10cm to transplant in back cut diameter, in the flowerpot of a height of 13cm, is placed in the screening of 8% light transmittance In cloudy canopy, the processing of low nitrogen, middle nitrogen and the fertilising of high nitrogen is carried out after the emergence of seed item;
3) biennial Radix Notoginseng N fertilization:The application of nitrogenous fertilizer is divided into 4 periods, respectively April, June, July With August part, low nitrogen processing is according to 0kg/hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio of O is applied fertilizer, at middle nitrogen Reason is according to 38.64kg/hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio fertilising of O, the processing of high nitrogen according to 77.28kg/hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio fertilising of O;
4) measure of SPAD values:The biennial sanchi leaf handled using SPAD-502 Chlorophyll meters nitrogen in step 3) The SPAD values of piece are measured;
5) it manages:Biennial Radix Notoginseng water regime is checked in fine day, and moisturizing is carried out using the spray irrigation system installed in greenhouse, Soil moisture is maintained at 25%~30%;Rainy day notices seeing whether that, there are sufferer Radix Notoginseng, discovery has sufferer Radix Notoginseng to remove in time;
6) measure of nitrogen content and its leaf area:Leaf total nitrogen content is measured using Kjeldahl's method, each processing takes 6 Then the average value of a replication value is measured the leaf area of respective vanes with the portable leaf area instrument of LI-3000C.
Embodiment 2:
1) for the analysis of examination soil nutrient content:To soil with organic matter content, total nitrogen content, ammonium nitrogen content, quick-acting Phosphorus content, content of tatal phosphorus, quick-acting potassium content, full potassium content and soil pH value are measured;
2) selection and transplanting of biennial Radix Notoginseng seed item:Selection is without rust, robust growth and uniform biennial three Seven seed items, it is 16.5cm, base diameter 11cm to transplant in back cut diameter, in the flowerpot of a height of 14cm, is placed in 10% light transmittance Shade in, seed item emergence after carry out low nitrogen, middle nitrogen and high nitrogen fertilising processing;
3) biennial Radix Notoginseng N fertilization:The application of nitrogenous fertilizer is divided into 4 periods, respectively April, June, July With August part, low nitrogen processing is according to 0kg/hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio of O is applied fertilizer, at middle nitrogen Reason is according to 38.64kg/hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio fertilising of O, the processing of high nitrogen according to 77.28kg/hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio fertilising of O;
4) measure of SPAD values:The biennial sanchi leaf handled using SPAD-502 Chlorophyll meters nitrogen in step 3) The SPAD values of piece are measured;
5) it manages:Biennial Radix Notoginseng water regime is checked in fine day, and moisturizing is carried out using the spray irrigation system installed in greenhouse, Soil moisture is maintained at 25%~30%;Rainy day notices seeing whether that, there are sufferer Radix Notoginseng, discovery has sufferer Radix Notoginseng to remove in time;
6) measure of nitrogen content and its leaf area:Leaf total nitrogen content is measured using Kjeldahl's method, each processing takes 7 Then the average value of a replication value is measured the leaf area of respective vanes with the portable leaf area instrument of LI-3000C.
Embodiment 3:
1) for the analysis of examination soil nutrient content:To soil with organic matter content, total nitrogen content, ammonium nitrogen content, quick-acting Phosphorus content, content of tatal phosphorus, quick-acting potassium content, full potassium content and soil pH value are measured;
2) selection and transplanting of biennial Radix Notoginseng seed item:Selection is without rust, robust growth and uniform biennial three Seven seed items, it is 17cm, base diameter 12cm to transplant in back cut diameter, in the flowerpot of a height of 15cm, is placed in 12% light transmittance In shade, the processing of low nitrogen, middle nitrogen and the fertilising of high nitrogen is carried out after the emergence of seed item;
3) biennial Radix Notoginseng N fertilization:The application of nitrogenous fertilizer is divided into 4 periods, respectively April, June, July With August part, low nitrogen processing is according to 0kg/hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio of O is applied fertilizer, at middle nitrogen Reason is according to 38.64kg/hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio fertilising of O, the processing of high nitrogen according to 77.28kg/hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio fertilising of O;
4) measure of SPAD values:The biennial sanchi leaf handled using SPAD-502 Chlorophyll meters nitrogen in step 3) The SPAD values of piece are measured;
5) it manages:Biennial Radix Notoginseng water regime is checked in fine day, and moisturizing is carried out using the spray irrigation system installed in greenhouse, Soil moisture is maintained at 25%~30%;Rainy day notices seeing whether that, there are sufferer Radix Notoginseng, discovery has sufferer Radix Notoginseng to remove in time;
6) measure of nitrogen content and its leaf area:Leaf total nitrogen content is measured using Kjeldahl's method, each processing takes 8 Then the average value of a replication value is measured the leaf area of respective vanes with the portable leaf area instrument of LI-3000C.
SPAD values and corresponding unit leaf area nitrogen content (SLN) under the different amount of nitrogens that Examples 1 to 3 is measured Data carry out regression analysis and establish equation of linear regression, the affiliated ranges of SPAD that Radix Notoginseng nitrogen is had more than needed are judged, to biennial three Seven leaf-nitrogens are had more than needed and are rapidly identified, according to qualification result, (the SPAD values that nitrogen is had more than needed are more than 60;Normally apply the three of nitrogen Seven SPAD values are between 50~60) adjustment amount of application of nitrogen fertilizer, in final Examples 1 to 3 Radix Notoginseng plant deposit seedling rate, yield and Quality is superior to existing Radix Notoginseng yield and quality.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace And modification, the scope of the present invention is defined by the appended.

Claims (4)

1. a kind of method that biennial Radix Notoginseng leaf-nitrogen of Rapid identification is had more than needed, it is characterised in that:Its method includes the following steps:
1) for the analysis of examination soil nutrient content:Soil with organic matter content, total nitrogen content, ammonium nitrogen content, rapid available phosphorus are contained Amount, content of tatal phosphorus, quick-acting potassium content, full potassium content and soil pH value are measured;
2) selection and transplanting of biennial Radix Notoginseng seed item:Selection is without rust, robust growth and uniform biennial Radix Notoginseng seed Item, it is 16~17cm to transplant in back cut diameter, and base diameter is 10~12cm, in the flowerpot of a height of 13~15cm, it is placed in 8%~ In the shade of 12% light transmittance, the processing of low nitrogen, middle nitrogen and the fertilising of high nitrogen is carried out after the emergence of seed item;
3) biennial Radix Notoginseng N fertilization:The application of nitrogenous fertilizer is divided into 4 periods, respectively April, June, July and August Part, low nitrogen processing is according to 0kg/hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio fertilising of O, middle nitrogen processing are pressed According to 38.64kg/hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio fertilising of O, high nitrogen processing is according to 77.28kg/ hm2Purity nitrogen, 64.87kg/hm2P2O5, 47.65kg/hm2k2The ratio fertilising of O;
4) measure of SPAD values:Using SPAD-502 Chlorophyll meters to the biennial Radix Notoginseng blade of nitrogen processing in step 3) SPAD values are measured;
5) it manages:Biennial Radix Notoginseng water regime is checked in fine day, and moisturizing, soil are carried out using the spray irrigation system installed in greenhouse Humidity is maintained at 25%~30%;Rainy day notices seeing whether that, there are sufferer Radix Notoginseng, discovery has sufferer Radix Notoginseng to remove in time;
6) measure of nitrogen content and its leaf area:Leaf total nitrogen content is measured using Kjeldahl's method, each processing takes 6~8 Then the average value of a replication value is measured the leaf area of respective vanes with the portable leaf area instrument of LI-3000C.
2. the method that the biennial Radix Notoginseng leaf-nitrogen of a kind of Rapid identification according to claim 1 is had more than needed, it is characterised in that: Soil organic matter content described in step 1) is measured by organic matter photometry, and the total nitrogen content of soil is surveyed by azotometer Fixed, the soil ammonium content is measured by spectrophotometry, and the soil quick-effective phosphor and the Soil total nitrogen pass through Molybdenum antimony resistance colorimetric method measures, and the Soil Available potassium content and the total potassium content of soil are described by flame spectrophotometric determination P in soil H values are counted by PH and measured.
3. the method that the biennial Radix Notoginseng leaf-nitrogen of a kind of Rapid identification according to claim 1 is had more than needed, it is characterised in that: Biennial Radix Notoginseng seed transplanting time described in step 2) is in January.
4. the method that the biennial Radix Notoginseng leaf-nitrogen of a kind of Rapid identification according to claim 1 is had more than needed, it is characterised in that: The minute of step 4) the SPAD values is in July.
CN201711290188.8A 2017-12-08 2017-12-08 A kind of method that biennial Radix Notoginseng leaf-nitrogen of Rapid identification is had more than needed Pending CN108152228A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113109272A (en) * 2021-04-20 2021-07-13 石河子大学 Drip irrigation cotton nitrogen nutrition deficiency diagnosis method and system
CN114711010A (en) * 2022-06-09 2022-07-08 苏州农业职业技术学院 Water-soil fertilizer management method, system and medium in Chinese rose cultivation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101666741A (en) * 2009-09-17 2010-03-10 南京农业大学 High density nondestructive collection method of airborne crop nitrogen information
CN104429272A (en) * 2014-12-17 2015-03-25 广西壮族自治区林业科学研究院 Fertilizing method for promoting germination of Cenxi soft-branch camellia oleifera scion wood
CN104584751A (en) * 2014-12-20 2015-05-06 华中农业大学 Fertilizing method based on nitrogen nutrition nondestructive detection of winter rapes
CN106358635A (en) * 2016-08-22 2017-02-01 文山苗乡三七科技有限公司 Method for nursing Vietnam notoginseng
CN106416566A (en) * 2016-10-11 2017-02-22 西北农林科技大学 Water and fertilizer control method for greenhouse tomatoes through drip irrigation under mulches

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101666741A (en) * 2009-09-17 2010-03-10 南京农业大学 High density nondestructive collection method of airborne crop nitrogen information
CN104429272A (en) * 2014-12-17 2015-03-25 广西壮族自治区林业科学研究院 Fertilizing method for promoting germination of Cenxi soft-branch camellia oleifera scion wood
CN104584751A (en) * 2014-12-20 2015-05-06 华中农业大学 Fertilizing method based on nitrogen nutrition nondestructive detection of winter rapes
CN106358635A (en) * 2016-08-22 2017-02-01 文山苗乡三七科技有限公司 Method for nursing Vietnam notoginseng
CN106416566A (en) * 2016-10-11 2017-02-22 西北农林科技大学 Water and fertilizer control method for greenhouse tomatoes through drip irrigation under mulches

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
YOU-KUN ZHENG等: "Endophytic fungi harbored in Panax notoginseng: diversity and potential as biological control agents against host plant pathogens of root-rot disease", 《JOURNAL OF GINSENG RESEARCH》 *
宋希梅等: "连续两年不同施氮对三七产量和皂苷产出量的影响", 《中药材》 *
李小红等: "不同氮素浓度下大豆叶片SPAD 值的动态变化研究", 《湖南农业科学》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113109272A (en) * 2021-04-20 2021-07-13 石河子大学 Drip irrigation cotton nitrogen nutrition deficiency diagnosis method and system
CN113109272B (en) * 2021-04-20 2023-01-24 石河子大学 Drip irrigation cotton nitrogen nutrition deficiency diagnosis method and system
CN114711010A (en) * 2022-06-09 2022-07-08 苏州农业职业技术学院 Water-soil fertilizer management method, system and medium in Chinese rose cultivation
CN114711010B (en) * 2022-06-09 2022-09-02 苏州农业职业技术学院 Water-soil fertilizer management method, system and medium in Chinese rose cultivation

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