CN103558342B - Method for measuring and calculating nitrogen, phosphorus and potassium nutrient absorbed amount of flue-cured tobacco - Google Patents
Method for measuring and calculating nitrogen, phosphorus and potassium nutrient absorbed amount of flue-cured tobacco Download PDFInfo
- Publication number
- CN103558342B CN103558342B CN201310511254.5A CN201310511254A CN103558342B CN 103558342 B CN103558342 B CN 103558342B CN 201310511254 A CN201310511254 A CN 201310511254A CN 103558342 B CN103558342 B CN 103558342B
- Authority
- CN
- China
- Prior art keywords
- tobacco
- leaf
- measuring
- calculating
- nitrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a method for measuring and calculating the nitrogen, phosphorus and potassium nutrient absorbed amount of flue-cured tobacco, especially the absorptive amount of a certain nutrient of a tobacco plant, and further, the soil fertilizer supply capability and fertilizer utilization ratio of plantation of tobacco leaves are obtained. When the tobacco leaves at the middle part of the tobacco plant are mature, the percentage of nitrogen, phosphorus and potassium in the tobacco leaves is measured, then the absorptive amount of a certain nutrient of the tobacco plant can be obtained through equation operation based on the measured content of nitrogen, phosphorus and potassium, and further, the soil fertilizer supply capability and the fertilizer utilization ratio of the plantation of the tobacco leaves are obtained. According to the invention, the multi-point test and analysis for multiple years show that the nutrient absorbed amount (g/plant) can be measured and calculated through relevant equations as long as the nitrogen, phosphorus and potassium content in the middle leaves (in the 9th-10th leaf positions) of the flue-cured tobacco is measured, and the practical production application proves that the method is convenient, rapid, accurate and practical.
Description
Technical field
The present invention relates to a kind of method calculating flue-cured tobacco npk nutrient uptake, particularly the uptake of a certain nutrient of cigarette strain, and then obtain soil supplying nutrient capability and the utilization rate of fertilizer of this tobacco leaf of plantation, belong to Tobacco, fertilizer test technical field.
Background technology
In Tobacco, fertilizer test and production practices, usually need to understand the fertility index such as soil supplying nutrient capability, utilization rate of fertilizer, so that applying fertilizer economically.For this reason, need to gather cigarette strain root, stem, leaf, flower, wooden fork etc. respectively and carry out dry weight and nutrient content mensuration, in the hope of the nutrients uptake amounts of smoke strain, and then try to achieve soil supplying nutrient capability and utilization rate of fertilizer.In the process, need a large amount of human and material resources of cost and testing expense, bring very large difficulty to the fertilization compositions based on earth measurement work of tobacco.
Summary of the invention
It is not enough that object of the present invention overcomes above-mentioned prior art, provides a kind of method calculating flue-cured tobacco npk nutrient uptake.The method is not only accurate, and comparatively convenient.
The technical scheme that the present invention calculates the method for flue-cured tobacco npk nutrient uptake is: when the tobacco leaf in the middle part of cigarette strain reaches maturation, to the mensuration of nitrogen, phosphorus, potassium content number percent in tobacco leaf, then according to the content determined, the uptake of a certain nutrient of cigarette strain can be obtained by equation computing, and then obtain soil supplying nutrient capability and the utilization rate of fertilizer of this tobacco leaf of plantation.
The method of measuring and calculating flue-cured tobacco npk nutrient uptake includes following steps:
1) determine to calculate object, namely determine to calculate the tobacco leaf position used;
2) determine to calculate the growth period using tobacco leaf;
3) measuring method is determined;
4) determine to calculate the dependent equation of nutrients uptake amounts, the unit of nutrients uptake amounts is gram/strain.
The tobacco leaf position that described step 1) measuring and calculating uses is be positioned at the middle leaf on strain cigarette, i.e. the 9-10 leaf position.
Described step 2) growth period of calculating tobacco leaf used is that tobacco leaf is reaching the maturation in leaf tobacco production meaning, measures when established technology is ripe.
Described step 3) measuring method is nitrogen, phosphorus, potassium content number percent by measuring respective vanes in the middle part of flue-cured tobacco, then applies dependent equation and calculate nutrients uptake amounts;
Described step 4) determines that the dependent equation calculating nutrients uptake amounts is as follows:
A. the measuring and calculating equation of cigarette strain absorbing nitrogen amount:
Y= 4.288X-2.175
In formula: Y is cigarette strain absorbing nitrogen amount, and X is the nitrogen content of middle leaf,
B. the measuring and calculating equation of cigarette strain P acquisition amount:
Y=3.956X+0.128
In formula: Y is cigarette strain P acquisition amount, and X is the phosphorus content of middle leaf,
C. the measuring and calculating equation of cigarette strain potassium absorption amount:
Y=1.266X+6.414
In formula: Y is cigarette strain potassium absorption amount, and X is the potassium content of middle leaf.
The present invention is shown with analysis by multiple years test, as long as measure nitrogen, phosphorus, the potassium content (%) of flue-cured tobacco middle leaf (the 9-10 leaf position), just calculates nutrients uptake amounts (gram/strain) by dependent equation.
Inventor confirms through production practical application for many years, as long as N, P, K content of middle leaf is substituted into the equation listed by this method, and cigarette strain N, P, K nutrient content just can calculating out.
Its dependent equation is as follows:
1, cigarette strain absorbing nitrogen amount (Y) and middle leaf nitrogen content (X): Y=4.288X-2.175 (r=0.878
*);
2, cigarette strain P acquisition amount (Y) and middle leaf phosphorus content (X): Y=3.956X+0.128 (r=0.726
*);
3, cigarette strain potassium absorption amount (Y) and middle leaf potassium content (X): Y=1.266X+6.414 (r=0.851
*), (note: * * is that related coefficient reaches the pole level of signifiance).
The inventive method is through production practices application attestation: not only accurate, and comparatively convenient, has produced good Social benefit and economic benefit in actual use.
Accompanying drawing explanation
By reference to the accompanying drawings embodiments of the invention are described in detail below, to becoming detailed in the description of embodiment and easy understand the present invention is above-mentioned or additional aspect and advantage.
Fig. 1 is present invention process process flow diagram.
Embodiment
Described embodiment, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
When tobacco leaf in the middle part of cigarette strain reaches technical maturity, it is carried out to the mensuration of nitrogen, phosphorus, potassium content number percent, then according to the content determined, and related coefficient, the uptake of a certain nutrient of cigarette strain can be obtained by equation computing, and then just can try to achieve soil supplying nutrient capability and utilization rate of fertilizer.Containing following steps:
1) determine to calculate object, namely determine to calculate the tobacco leaf position used;
2) determine to calculate the growth period using tobacco leaf;
3) measuring method is determined;
4) determine to calculate the dependent equation of nutrients uptake amounts, the unit of nutrients uptake amounts is gram/strain.
The tobacco leaf position that described step 1) measuring and calculating uses is middle leaf i.e. the 9-10 leaf position be positioned on strain cigarette;
Described step 2) growth period of calculating tobacco leaf used is that tobacco leaf measures when reaching the ripe established technology in leaf tobacco production meaning and being ripe;
Described step 3) measuring method is nitrogen, phosphorus, potassium content number percent by measuring respective vanes in the middle part of flue-cured tobacco, then applies dependent equation and calculate nutrients uptake amounts;
Described step 4) determines that the dependent equation calculating nutrients uptake amounts is as follows:
A. the measuring and calculating equation of cigarette strain absorbing nitrogen amount:
Y= 4.288X-2.175(r=0.878
* *)
In formula: Y is cigarette strain absorbing nitrogen amount, and X is the nitrogen content of middle leaf, and r is related coefficient, * * is that related coefficient reaches the pole level of signifiance,
B. the measuring and calculating equation of cigarette strain P acquisition amount:
Y=3.956X+0.128(r=0.726
* *)
In formula: Y is cigarette strain P acquisition amount, and X is the phosphorus content of middle leaf, and r is related coefficient, * * is that related coefficient reaches the pole level of signifiance,
C. the measuring and calculating equation of cigarette strain potassium absorption amount:
Y=1.266X+6.414(r=0.851
* *)
In formula: Y is cigarette strain potassium absorption amount, and X is the potassium content of middle leaf, and r is related coefficient, * * is that related coefficient reaches the pole level of signifiance.
Correlation coefficient r in above-mentioned three equations only represents correlativity, and digital r only represents a kind of degree, has nothing to do with measuring technique of the present invention.
The measuring and calculating equation of the measuring and calculating equation of above-mentioned a. cigarette strain absorbing nitrogen amount, the measuring and calculating equation of b. cigarette strain P acquisition amount, c. cigarette strain potassium absorption amount also comprises following 9 constants:
1) a item is for calculating three constants in cigarette strain absorbing nitrogen amount equation: 4.288,2.175,0.878;
2) b item is for calculating three constants in cigarette strain P acquisition amount equation: 3.956,0.128,0.726;
3) c item is for calculating three constants in cigarette strain potassium absorption amount equation: 1.266,6.414,0.851.
Three constants in above-mentioned three equations be inventor pass through production test figure for many years sum up receive.Above-mentioned three formula are adopted to calculate N, P, K respectively, not only accurately, and comparatively convenient.
, materials and methods (by weight percentage)
The large gold dollar of safflower (be called for short red large), G28 and K326 kind are main process, rate of fertilizer application (0,5,8,11gN/ strain, N:P
2o
5: KO
2=1:2:3) be vice processing, totally 9 process combinations.Each process combining random gets 5 strain cigarettes, gathers root (whole strain tobacco leaf all gather after) respectively, carries out completing in stem (whole strain tobacco leaf all gather after), leaf (when corresponding position tobacco leaf is ripe), top (normally binding), wooden fork (summation of all normally pruning), dries, weigh (charging in table 1) by growth course and tobacco leaf maturation.Wherein, blade is divided into leaf position, three, upper, middle and lower to measure, and uses the average weight at three positions during calculating.Measure different cigarette strain position and various position leaves N, P, K content (%), then calculate N, P, K uptake of the every strain cigarette of each process combination according to its content and dry weight.
, interpretation of result
By correlation analysis (table 1-6), N, P, K content (%) and uptake (g/ strain) correlativity of flue-cured tobacco middle leaf position all reach remarkable positive correlation, and inferior leads K content and uptake correlativity poor, upper leaf N content and uptake only reach remarkable positive correlation.So, calculate cigarette strain nutrient content with N, P, K content of middle leaf more accurate and convenient.
Table 1 cigarette strain biomass component (gram/strain)
table 2 cigarette strain different parts and various position leaves N cellulose content (%)
table 3 cigarette strain different parts and various position leaves P cellulose content (%)
table 4 cigarette strain different parts and various position leaves K cellulose content (%)
element absorption amount computing formula:
Element absorption amount=(the biological weight × root constituent content % of root)+(the biological weight × cane constituent content % of stem)+(the biological weight × flower wooden fork constituent content % of flower wooden fork)+(the biological weight × blade Average Element content % of blade).
Data in table 1 ~ table 4 are pressed corresponding element, substitutes into above-listed computing formula, N, the P of the cigarette strain of table 5, K element uptake can be drawn.
the strain of table 5 cigarette N, P, K uptake (gram/strain)
The data recorded in showing by the data and 1 ~ 4 that table 5 draws again carry out correlation analysis, can obtain each group of related coefficient listed in table 6 and correlate equation.Confirm through practical application, as long as N, P, K content of middle leaf is substituted into the equation listed by this method, cigarette strain N, P, K nutrient content just can calculating out.
the relation of table 6 various position leaves nutrient content (X) and uptake (Y)
note: correlation coefficient r
※
for remarkable positive correlation, r
※ ※
for extremely significantly positive correlation.
Correlation coefficient r in above-mentioned table 6 only represents correlativity, and digital r only represents a kind of degree, and we are for evaluating the index of degree, to have nothing to do direct cause-effect relationship with measuring technique scheme of the present invention.
The present invention records rate of fertilizer application in illustrating: gN/ strain refers to that the N element being administered to field should be used by every strain g.Such as rate of fertilizer application is 11gN/ strain, wherein N does not refer to that the N element that the strain of every strain cigarette absorbs is 11g, and refers to that the N element being administered to field should be used by every strain 11g.
Claims (1)
1. calculate the method for flue-cured tobacco npk nutrient uptake for one kind, it is characterized in that: when the tobacco leaf in the middle part of cigarette strain reaches maturation, to the mensuration of nitrogen, phosphorus, potassium content number percent in tobacco leaf, then according to the content determined, the uptake of a certain nutrient of cigarette strain can be obtained by equation computing, and then obtain soil supplying nutrient capability and the utilization rate of fertilizer of this tobacco leaf of plantation;
Its measuring and calculating flue-cured tobacco npk nutrient uptake includes following steps:
1) determine to calculate object, namely determine to calculate the tobacco leaf position used;
2) determine to calculate the growth period using tobacco leaf;
3) measuring method is determined;
4) determine to calculate the dependent equation of nutrients uptake amounts, the unit of nutrients uptake amounts is gram/strain;
The tobacco leaf position that described step 1) measuring and calculating uses is be positioned at the middle leaf on strain cigarette, i.e. the 9-10 leaf position;
Described step 2) growth period of calculating tobacco leaf used is that tobacco leaf is reaching the maturation in leaf tobacco production meaning, measures when established technology is ripe;
Described step 3) measuring method is nitrogen, phosphorus, potassium content number percent by measuring respective vanes in the middle part of flue-cured tobacco, then applies dependent equation and calculate nutrients uptake amounts;
Described step 4) determines that the dependent equation calculating nutrients uptake amounts is as follows:
A. the measuring and calculating equation of cigarette strain absorbing nitrogen amount:
Y= 4.288X-2.175
In formula: Y is cigarette strain absorbing nitrogen amount, and X is the nitrogen content of middle leaf,
B. the measuring and calculating equation of cigarette strain P acquisition amount:
Y=3.956X+0.128
In formula: Y is cigarette strain P acquisition amount, and X is the phosphorus content of middle leaf,
C. the measuring and calculating equation of cigarette strain potassium absorption amount:
Y=1.266X+6.414
In formula: Y is cigarette strain potassium absorption amount, and X is the potassium content of middle leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511254.5A CN103558342B (en) | 2013-10-27 | 2013-10-27 | Method for measuring and calculating nitrogen, phosphorus and potassium nutrient absorbed amount of flue-cured tobacco |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511254.5A CN103558342B (en) | 2013-10-27 | 2013-10-27 | Method for measuring and calculating nitrogen, phosphorus and potassium nutrient absorbed amount of flue-cured tobacco |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103558342A CN103558342A (en) | 2014-02-05 |
| CN103558342B true CN103558342B (en) | 2015-07-22 |
Family
ID=50012649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310511254.5A Active CN103558342B (en) | 2013-10-27 | 2013-10-27 | Method for measuring and calculating nitrogen, phosphorus and potassium nutrient absorbed amount of flue-cured tobacco |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103558342B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106171453B (en) * | 2016-07-25 | 2019-04-05 | 郑婵颖 | Absorption method for determination of amount of the crops to chitosan oligosaccharide |
| CN110367020A (en) * | 2019-08-07 | 2019-10-25 | 广东省林业科学研究院 | A kind of nutrient application methods in red cone seedling stage |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9107341B2 (en) * | 2012-02-27 | 2015-08-18 | Agq Technological Corporate S.A. | Monitoring and control of soil conditions |
-
2013
- 2013-10-27 CN CN201310511254.5A patent/CN103558342B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103558342A (en) | 2014-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Seasonal patterns of litterfall in forest ecosystem worldwide | |
| ZHENG et al. | Establishing dynamic thresholds for potato nitrogen status diagnosis with the SPAD chlorophyll meter | |
| Verlinden et al. | Net ecosystem production and carbon balance of an SRC poplar plantation during its first rotation | |
| Grote et al. | Modelling forest carbon balances considering tree mortality and removal | |
| CN110245420A (en) | The method of coast protection forest biomass and organic C storage monitoring and metering | |
| CN103245619A (en) | Nondestructive testing method for maturity level of organic flue-cured tobacco leaves at late growth stage | |
| Wang et al. | Root inclusion net method: novel approach to determine fine root production and turnover in Larix principis-rupprechtii Mayr plantation in North China | |
| Zhang et al. | Diurnal pattern in canopy light interception for tree fruit orchard trained to an upright fruiting offshoots (UFO) architecture | |
| Yang et al. | Growth-climate sensitivity of two pine species shows species-specific changes along temperature and moisture gradients in southwest China | |
| CN103558342B (en) | Method for measuring and calculating nitrogen, phosphorus and potassium nutrient absorbed amount of flue-cured tobacco | |
| CN102428858A (en) | Forest vegetation degrading level evaluation method | |
| Molina et al. | Sap flow of a wild cherry tree plantation growing under Mediterranean conditions: Assessing the role of environmental conditions on canopy conductance and the effect of branch pruning on water productivity | |
| Cemek et al. | Nondestructive leaf-area estimation and validation for green pepper (Capsicum annuum L.) grown under different stress conditions | |
| Iranmanesh et al. | Biomass and carbon stocks of brant's oak (Quercus brantii Lindl.) in two vegetation forms in Lordegan, Chaharmahal & Bakhtiari forests | |
| Molina et al. | Effect of irrigation on sap flux density variability and water use estimate in cherry (Prunus avium) for timber production: Azimuthal profile, radial profile and sapwood estimation | |
| Grote et al. | Dynamic coupling of allometric ratios to a process-based forest growth model for estimating the impacts of stand density changes | |
| CN102150595A (en) | Method for determining first intermediate cutting age of made forest | |
| Amezquita et al. | Fertilization effects on Eucalyptus pellita F. Muell productivity in the Colombian Orinoco Region | |
| Lebourgeois et al. | Height and radial growth trends of Corsican pine in western France | |
| Lu et al. | Instantaneous and long-term CO2 assimilation of Platycladus orientalis estimated from 13C discrimination | |
| Shupe et al. | Droughts decrease and floods increase carbon sequestration rates of Quercus robur in hardwood floodplain forests | |
| Wang et al. | Contribution of aboveground litter decomposition to soil respiration in a subtropical coniferous plantation in southern China | |
| Zhao et al. | Research on soil evaporation of summer maize by field measurement and model simulation | |
| Hytönen et al. | Biomass equations for rubber tree (Hevea brasiliensis) components in Southern Thailand | |
| CN109041875A (en) | The yield of rape based on economical character and the prediction technique of lodging resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |