CN111175173B - Yield measuring method suitable for saline-alkali dry land alfalfa cell test - Google Patents
Yield measuring method suitable for saline-alkali dry land alfalfa cell test Download PDFInfo
- Publication number
- CN111175173B CN111175173B CN202010046634.6A CN202010046634A CN111175173B CN 111175173 B CN111175173 B CN 111175173B CN 202010046634 A CN202010046634 A CN 202010046634A CN 111175173 B CN111175173 B CN 111175173B
- Authority
- CN
- China
- Prior art keywords
- yield
- cell
- calculating
- alfalfa
- sample
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
Abstract
The invention relates to a yield measuring method suitable for a saline-alkali dry land alfalfa test cell, which comprises the following steps: 1 cell area setting, each cell area should be more than or equal to 30m2(ii) a 2 single row seeding in measuring and calculating districtMeasuring to ensure that the seeding quantity is relatively uniform; 3, selecting a sampling point; 4, sampling method and data determination; 6, measuring and calculating the fresh grass acre yield corresponding to the various points; 7 sampling all the sampling points, and then calculating the dry matter content according to a formula; and 8, calculating the hay yield according to the dry matter content and the fresh grass yield of each sample point, wherein the theoretical yield multiplied by the alfalfa coverage is the actual yield. The invention improves the yield measuring method on the basis of the original method and scientific theory, so that the yield measuring method has more pertinence and practicability on the basis of science, thereby providing a scientific and accurate yield measuring method for planting alfalfa in barren and saline-alkaline soil and filling the blank in the field in China.
Description
Technical Field
The invention relates to a yield measuring method suitable for saline-alkali dry land alfalfa plot tests.
Background
The alfalfa is an important plant protein source in the development of livestock husbandry in China, and the alfalfa industry enters a rapid development stage along with the rapid development of the livestock husbandry in China and the vigorous promotion of China on the alfalfa superiority industry. Therefore, the related research of alfalfa is also developed successively. In the related research of alfalfa, the measures of alfalfa biological yield or alfalfa seed yield and other indexes are often needed. The alfalfa production measuring method mainly adopts a sample production measuring method and an actual measuring method (the side line and the two ends are removed by 50 cm) at present. The two methods are accurately feasible to be used in the alfalfa test of a high-quality fertile field. However, the agricultural development policy in China is mainly about the grain safety problem, but alfalfa is mostly planted in barren and saline-alkali soil, and the soil in such areas is generally in spot saline-alkali distribution and is extremely uneven, so that the emergence of seedlings of alfalfa is uneven and in spot distribution. So when utilizing above-mentioned traditional survey to produce the method and survey to produce, the deceitful data often appears, and test data is very inaccurate, even can not be used. This problem indicates that: in such areas
The alfalfa production measurement by using the traditional production measurement method is not feasible, so that a new practical production measurement method is urgently needed in the region so as to ensure the accuracy and the scientificity of alfalfa research data.
Disclosure of Invention
The invention aims to provide a yield measurement method suitable for a saline-alkali dry land alfalfa cell test, which aims at the problem that the existing method is difficult to measure the yield of the saline-alkali dry land alfalfa test cell plants due to spot distribution.
The technical scheme of the invention is as follows:
the invention relates to a yield measuring method suitable for saline-alkali dry land alfalfa plot tests, which comprises the following steps:
the first step is as follows: setting the area of each cell to be greater than or equal to 30m 2So as to ensure that the method has enough sampling points to meet the requirements when in operation.
The second step is that: measuring and calculating the single-row seeding rate of the community to ensure that the seeding rate is relatively uniform: and when the plot is sowed, measuring and calculating the plot seeding amount according to the seed emergence rate, the mu seeding amount and the plot area, and then measuring and calculating the single-row seeding amount of the plot according to the total row number of the plot so as to ensure the representativeness of the seedling number of each sample point.
The third step: and selecting sampling points, namely removing side rows and rows with the length of more than 0.5m at two ends of the cell, selecting row sections with the length of more than 1.4m continuously, without seedling and ridge defects and uniform plant growth as sampling points in the cell, wherein the adjacent rows of the selected row sections have no ridge defects of more than 0.3m continuously, and the number of the selected sampling points in each cell is more than 6.
The fourth step: removing two ends of each sampling point by a sampling method and measuring data, and taking a plant with the middle part of 1m as a sample; meanwhile, the fresh grass weight of each sample point is respectively weighed.
The fifth step: and (3) area conversion of sampling points, calculating the total theoretical line length of the alfalfa in the cell, and converting the alfalfa sample points with the length of 1m into the area according to the area of the cell: spot area = cell area 1/total theoretical row length.
And a sixth step: and respectively measuring and calculating the fresh grass acre yield corresponding to each sample point, and respectively measuring and calculating the fresh grass acre yield of the test cell, namely the average number of each sample point according to the area of each sample point and the weight of the alfalfa of each sample point.
The seventh step: a sample of 200-300g was taken from each spot and the bag was weighed (g) using a scale with one percent accuracy0 ），
The bags were then weighed (g) after loading the samples 1) Recording, drying at 40-60 deg.C in a forced air drying oven,
drying for 48 hr, weighing, and oven drying until the weight is constant (g)2 ) The dry matter content is then calculated according to the formula.
Dry matter calculation formula:
DM % = 100*( g 1 - g2 )/( g 1- g0 )%
eighth step: and calculating the hay yield according to the dry matter content and the fresh grass yield of each sample point, respectively measuring the dry matter content of a sample of each sample point, calculating the hay yield according to the dry matter content, wherein the average yield of each sample point in the same cell is the hay yield of the cell, namely the theoretical yield, and the theoretical yield multiplied by the alfalfa coverage is the actual yield.
The invention has the beneficial effects that:
the method is specially suitable for the test cell of the saline-alkali dry land, aims at the problem that the spot distribution of the plants in the test cell of the alfalfa in the saline-alkali dry land is difficult to test the yield by using the traditional method, and improves the test method on the basis of the original method and the scientific theory, so that the test method has higher practicability and practicability on the basis of the science. So as to provide a scientific and practical new production measuring method suitable for saline-alkali dry land for alfalfa research in China, promote the smooth implementation of alfalfa research and fill the blank in the field in China.
The technical improvement of the invention has three points: firstly, a request is made for the area of a cell; secondly, requirements are put forward on the cell seeding technology; third, the method replaces 1m with multiple 1m line lengths2And (3) sampling a sample (or actually measuring), and converting the alfalfa with the 1m line length into an area by utilizing the total line length and the cell area of the cell sowing and sowing, thereby calculating the yield. The advantages are that: the alfalfa test yield result is established under the ideal condition of unifying the whole seedlings, and the influence of external factors on the test caused by different area and distribution of salt spots in the cell is avoided, so that the effect that the test data are set factors under the same condition is compared.
Detailed Description
The invention relates to a yield measuring method suitable for a saline-alkali dry land alfalfa test cell, which comprises the following steps:
the first step is as follows: setting the area of each cell to be greater than or equal to 30m2(ensuring that there are enough sampling points to meet the requirements when the process is operating).
The second step is that: and when the plot is sowed, measuring and calculating the plot seeding quantity according to the seed emergence rate, the mu seeding quantity and the plot area, and then measuring and calculating the single-row seeding quantity of the plot according to the total row number of the plot so as to ensure the representativeness of the seedling number of each sample point.
The third step: removing the side rows and two ends (about 0.5 m) of the cell, selecting row sections which are more than 1.4m continuous and have no seedling and ridge shortage and uniform plant growth as sampling points in the cell, wherein the adjacent rows of the selected row sections have no ridge shortage and ridge breakage which is more than 0.3m continuous, and the number of the selected sampling points in each cell is more than 6.
The fourth step: removing two ends of each sampling point, and taking a plant with the middle 1m as a sample; meanwhile, the fresh grass weight of each sample point is respectively weighed.
The fifth step: and calculating the total theoretical line length of the alfalfa in the cell, and converting the alfalfa sample points with the length of 1m into the area according to the cell area (the sample point area = cell area 1/total theoretical line length).
And a sixth step: and respectively measuring and calculating the fresh grass acre yield (average number of 6 sampling points) of the test cell according to the area of the sampling points and the weight of the alfalfa of the sampling points.
The seventh step: and (3) taking 200-300g of sample from each sampling point, weighing the paper bag by using a balance with one percent accuracy (g 0), then weighing the paper bag after the sample is filled (g 1), recording, drying at 40-60 ℃ in a blast drying oven, weighing after drying for 48 hours, drying again until the mass is constant (g 2), and then calculating the dry matter content according to a formula.
Dry matter calculation formula:
DM % = 100*(g1 –g2 )/(g1 -g0 )%
eighth step: and calculating the hay yield according to the dry matter content and the fresh grass yield of each sample point, respectively measuring the dry matter content of the sample of each sample point, calculating the hay yield according to the dry matter content, and obtaining the average yield of each sample point in the same cell as the hay yield of the cell.
The following are control tests using the method of the invention:
the experiment was set up with 2 controls, 3 treatments, 3 replicates for a total of 15 cells, each cell having an area of 40m 2 (5 m x 8m =40m 2). Controls were: CK1 = true measurement (0.5 m each of the edge row, the adjacent edge row and the cell end is excluded); CK2 = sample method (3 random 1m per cell)2The proof). 3 treatments were respectively: t1 = take 4 linesPin, T2 = sample taken in 6 rows, T3 = sample taken in 8 rows.
TABLE 1 Effect of sampling method on hay yield
The test results are summarized:
as can be seen from Table 1, the deviation of the results of CK1 and CK2 measurements was 0.82 and 0.48, respectively, indicating that there is a large difference between the results of the measurements performed by CK1 or CK2 in the same treatment. The results show that: due to the fact that the saline-alkali soil conditions are inconsistent, yield deviation between test repetition is large, and test results are unscientific.
The results measured by the method have lower deviation of 0.10, 0.11 and 0.11 respectively, and when the sampling point is more than or equal to 6 lines, the yield is unchanged, and the variance analysis difference is not obvious (P > 0.05). The line segment sampling method can avoid the influence of soil conditions on the test, so that the field production test research of the saline-alkali soil is scientific and reasonable.
Claims (1)
1. A production measuring method suitable for a saline-alkali dry land alfalfa test cell is characterized by comprising the following steps: the method comprises the following steps:
the first step is as follows: setting the area of each cell, wherein the area of each cell is more than or equal to 30m & lt 2 & gt so as to ensure that sampling points which can sufficiently meet the requirements exist during the operation of the method;
the second step is that: measuring and calculating the single-row seeding rate of the community to ensure that the seeding rate is relatively uniform: when the plot is sowed, the plot seeding amount is measured and calculated according to the seed emergence rate, the mu seeding amount and the plot area, and then the single-row seeding amount of the plot is measured and calculated according to the total row number of the plot, so that the representativeness of the seedling number of each sample point is ensured;
the third step: selecting sampling points, namely removing side rows and rows with the length of more than 0.5m at two ends of a cell, selecting row sections with the length of more than 1.4m continuously, without seedling and ridge defects and uniform plant growth as sampling points in the cell, wherein no broken ridge larger than 0.3m continuously exists in adjacent rows of the selected row sections, and the number of the selected sampling points in each cell is more than 6;
the fourth step: removing two ends of each sampling point by a sampling method and measuring data, and taking a plant with the middle part of 1m as a sample; simultaneously weighing the fresh grass weight of each sample point sample;
the fifth step: and (3) area conversion of sampling points, calculating the total theoretical line length of the alfalfa in the cell, and converting the alfalfa sample points with the length of 1m into the area according to the area of the cell: sample spot area = cell area 1/total theoretical row length;
and a sixth step: measuring and calculating the fresh grass acre yield corresponding to each sample point, and respectively measuring and calculating the fresh grass acre yield of the test cell, namely the average number of each sample point according to the area of each sample point and the weight of the alfalfa of each sample point;
the seventh step: 200-300g of sample is taken from each sampling point, and the weight g of the paper bag is weighed by a balance with one percent accuracy0Then, the bag after the sample was filled was weighed to weight g1Recording, drying at 40-60 deg.C in a forced air drying oven for 48 hr, weighing, and oven drying until the mass is constant g 2Then calculating the dry matter content according to a formula;
dry matter calculation formula:
DM % = 100*(g 1 -g 2 )/(g 1 -g 0 )%；
eighth step: and calculating the hay yield according to the dry matter content and the fresh grass yield of each sample point, respectively measuring the dry matter content of a sample of each sample point, calculating the hay yield according to the dry matter content, wherein the average yield of each sample point in the same cell is the hay yield of the cell, namely the theoretical yield, and the theoretical yield multiplied by the alfalfa coverage is the actual yield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010046634.6A CN111175173B (en) | 2020-01-16 | 2020-01-16 | Yield measuring method suitable for saline-alkali dry land alfalfa cell test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010046634.6A CN111175173B (en) | 2020-01-16 | 2020-01-16 | Yield measuring method suitable for saline-alkali dry land alfalfa cell test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111175173A CN111175173A (en) | 2020-05-19 |
| CN111175173B true CN111175173B (en) | 2022-03-01 |
Family
ID=70656346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010046634.6A Active CN111175173B (en) | 2020-01-16 | 2020-01-16 | Yield measuring method suitable for saline-alkali dry land alfalfa cell test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111175173B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205580498U (en) * | 2016-04-25 | 2016-09-14 | 石河子大学 | Foldable alfalfa determination of yield sample prescription frame |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5073503A (en) * | 1985-10-29 | 1991-12-17 | Mee John M | Biothermographic analysis of plants |
| AR085702A1 (en) * | 2011-03-07 | 2013-10-23 | Syngenta Participations Ag | METHODS TO PREACH THE PERFORMANCE IN PLANTS AND APPLICATIONS OF USE OF THE SAME |
| US10126282B2 (en) * | 2014-09-23 | 2018-11-13 | Deere & Company | Yield estimation |
-
2020
- 2020-01-16 CN CN202010046634.6A patent/CN111175173B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205580498U (en) * | 2016-04-25 | 2016-09-14 | 石河子大学 | Foldable alfalfa determination of yield sample prescription frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111175173A (en) | 2020-05-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110115142A (en) | A kind of farmland variable fertilization method based on remotely-sensed data | |
| Haskins et al. | Influence of Seed Size, Planting Depth, and Companion Crop on Emergence and Vigor of Seedlings in Sweetclover 1 | |
| CN112396227A (en) | Method for measuring and evaluating lodging resistance of rice variety | |
| Spinks et al. | Study of fertilizer uptake using radioactive phosphorus | |
| CN111165341A (en) | Water-saving index breeding method of water-saving wheat | |
| CN111175173B (en) | Yield measuring method suitable for saline-alkali dry land alfalfa cell test | |
| CN110313290A (en) | A kind of optimization method of Highland Barley In Xizang Technique of Accurate Application of Fertilization | |
| CN107155665B (en) | Method for making crop irrigation strategy based on leaf area growth model | |
| CN216253831U (en) | Tobacco seed vitality measuring device | |
| Tsuchihashi et al. | Internode characteristics of sweet sorghum (Sorghum bicolor (L.) Moench) during dry and rainy seasons in Indonesia | |
| CN112314379A (en) | Sugarcane barrel-cultivation drought stress test method | |
| CN113641941B (en) | Accurate calculation method for basic seedlings in ultrahigh-yield wheat cultivation | |
| CN111279999B (en) | Drought-resistant wheat variety breeding method | |
| Soon | Nutrient uptake by barley roots under field conditions | |
| CN115144546A (en) | Identification and evaluation method for low-temperature resistance of sesame in germination stage | |
| CN109696450A (en) | A kind of method of enabling non-destructive determination simple grain vegetable seeds oil content | |
| CN112683723A (en) | Quantitative analysis method for anaerobic decomposition intensity in straw returning soil | |
| CN111950774A (en) | Method for predicting lodging resistance of rape and application | |
| CN111709510A (en) | Tool and method for rapidly determining field population of high-yield wheat | |
| CN111771637A (en) | Method for screening nitrogen-efficient germplasm of rape and breeding nitrogen-efficient variety of rape | |
| CN219474755U (en) | Plant does not destroy formula growth weighing device | |
| CN111024562A (en) | Novel method for quickly testing varieties of multi-variety rice | |
| CN112990692B (en) | Winter wheat yield estimation method based on multiparameter coupling in sub-fertility stage | |
| CN115250704B (en) | Rape recessive potassium deficiency diagnosis and fertilization method based on seedling stage new leaf potassium content | |
| CN112913607B (en) | Quantitative rice seedling transplanting method by using machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |