Evaluation method for tobacco field consistency and application thereof

Abstract

The invention relates to an evaluation method for tobacco field consistency of a cigarette industry base and application of the evaluation method, the tobacco field consistency is evaluated after evaluation scores of tobacco consistency are divided, and the evaluation scores of the tobacco consistency are obtained through weighted calculation of evaluation scores of tobacco agronomic indexes. By determining the key agronomic indexes of the key period of the tobacco leaf production stage and formulating and setting the evaluation standard and the weight coefficient suitable for the actual situation, the consistency level of the tobacco leaf production fields of each tobacco leaf base of the cigarette industry enterprise can be compared intuitively, the actual production condition of the tobacco leaves of the industrial enterprise base is clarified, and the tobacco leaf production efficiency is improved. The production level of base tobacco leaves is continuously improved, a foundation is laid for making a practical base tobacco leaf raw material purchasing plan for cigarette industry enterprises and achieving high-quality development of raw material guarantee work, and the method has certain application and popularization value.

Description

Technical Field

[0001] This invention relates to the field of tobacco production evaluation, specifically to an evaluation method for field uniformity of tobacco leaves and its application. Background Technology

[0002] In the evaluation system for tobacco leaf quality, the consistency of tobacco leaf quality is an important evaluation indicator and has always been highly valued by tobacco industrial enterprises. Although fluctuations can be reduced through processes such as sorting and blending in later processing stages, obtaining tobacco leaves with better quality consistency remains a long-term requirement for tobacco industrial enterprises.

[0003] Agricultural conformity assessment refers to the process of testing and evaluating the specificity, conformity, and stability (DUS) of agricultural plant varieties. This process aims to ensure the impartiality, scientific rigor, and authority of plant varieties, ensuring that their authenticity and stability meet relevant standards and requirements. In particular, conformity assessment for field crops is significant in ensuring the consistency and stability of agricultural production, thereby improving the quality and market competitiveness of agricultural products. Through conformity assessment, it is ensured that crops exhibit consistent characteristics across different regions and environments, reducing quality fluctuations caused by environmental changes, thus enhancing the overall quality and market reputation of agricultural products. The core purpose of conformity assessment is to ensure that crops from different batches or sources maintain consistency in characteristics, quality, and effects, thereby guaranteeing the consistency and stability of agricultural production. This assessment process involves testing and evaluating multiple aspects of crop characteristics, stability, and conformity to ensure they meet predetermined standards and requirements. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a method for evaluating the field uniformity of tobacco leaves and its application.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] In a first aspect, the present invention provides a method for evaluating the field uniformity of tobacco leaves in a cigarette manufacturing base. The field uniformity of tobacco leaves is evaluated by dividing the tobacco leaf uniformity evaluation score, which is calculated using the following formula:

[0007] ;

[0008] Where S represents the tobacco leaf consistency evaluation score. The evaluation scores represent various tobacco agronomic indicators. The weighting coefficient representing this agronomic indicator;

[0009] The tobacco agronomical parameters include seedling time, transplanting time, transplanting density, plant height 32-40 days after transplanting (e.g., 32, 34, 36, 38, 40 days, etc.), leaf length of the longest leaf 32-40 days after transplanting (e.g., 32, 34, 36, 38, 40 days, etc.), leaf width of the longest leaf 32-40 days after transplanting (e.g., 32, 34, 36, 38, 40 days, etc.), plant height 60-70 days after transplanting (e.g., 60, 62, 65, 68, 70 days, etc.), and transplanting... The longest leaf length in the middle 60-70 days after planting (e.g., 60, 62, 65, 68, 70 days after transplanting), the longest leaf width in the middle 60-70 days after transplanting (e.g., 60, 62, 65, 68, 70 days after transplanting), the longest leaf length in the upper part 80-90 days after transplanting (e.g., 80, 82, 85, 88, 90 days after transplanting), and the longest leaf width in the upper part 80-90 days after transplanting (e.g., 80, 82, 85, 88, 90 days after transplanting), or any combination of at least two of these criteria.

[0010] This invention identifies key agronomic indicators (seedling time, transplanting time, transplanting density, plant height, leaf length, and leaf width) at critical stages of tobacco production (seedling raising, 32-40 days after transplanting, 60-70 days after transplanting, and 80-90 days after transplanting) to more objectively evaluate the consistency of tobacco production in cigarette manufacturing bases. This results in a method for evaluating the consistency of tobacco production in bases based on key production indicators at critical production stages. This method allows for a simple, scientific, and intuitive comparison of the production levels of tobacco raw material bases between industrial enterprises and across different years. It facilitates the identification of problems and deficiencies in the tobacco production process, enabling focused attention and solutions, and continuous improvement of the base's tobacco production level. This method is simple to implement, easy to operate, and provides readily available data, making it easy to promote and apply. It offers practical reference for industrial enterprises to conduct more comprehensive quality evaluations of tobacco-producing areas.

[0011] In this invention, the plant height refers to the straight-line distance between the base of the stem on the ridge and the top of the stem of the tobacco plant, and the top of the stem is the naturally growing top of the stem of the tobacco plant; the leaf length refers to the straight-line distance between the stem-leaf junction and the leaf tip; and the leaf width refers to the vertical distance between the widest part of the leaf surface and the midrib.

[0012] Preferably, the Selected from 85, 90 or 95, Selected from any value between 2% and 25% (e.g., 2%, 6%, 9%, 10%, 13%, 15%, 17%, 20%, 22%, 24%, or 25%, etc.), and the various tobacco agronomic indicators... The sum is 100.

[0013] Preferably, the evaluation scoring standard for the seedling time is as follows: 95 points are awarded if the difference between the earliest and latest seedling times of the base under evaluation is ≤5 days, 90 points are awarded if the difference between the earliest and latest seedling times is <10 days and the difference between the earliest and latest seedling times is <5 days, and 85 points are awarded if the difference between the earliest and latest seedling times is ≥10 days.

[0014] Preferably, the evaluation scoring standard for the transplanting time is as follows: 95 points are awarded if the difference between the earliest and latest transplanting times at the site to be evaluated is ≤7 days; 90 points are awarded if the difference between the earliest and latest transplanting times is 7 days < and <10 days; and 85 points are awarded if the difference between the earliest and latest transplanting times is ≥10 days.

[0015] Preferably, the evaluation scoring standard for the transplanting density is as follows: randomly select 4-10 tobacco fields (e.g., 4, 5, 6, 7, 8, 9, or 10 fields) from the base to be evaluated. Under the premise that the planting density is 900-1200 plants / mu (e.g., 900, 1000, 1100, or 1200 plants / mu), the difference between the maximum and minimum transplanting density of the tobacco field is ≤200 plants, which is 95 points; 200 plants < the difference between the maximum and minimum transplanting density of the tobacco field is <250 plants, which is 90 points; and the difference between the maximum and minimum transplanting density of the tobacco field is ≥250 plants, which is 85 points.

[0016] Preferably, the evaluation scoring standard for plant height 32-40 days after transplanting is as follows: randomly select 4-10 tobacco fields (e.g., 4, 5, 6, 7, 8, 9, or 10 fields) in the evaluation base, and continuously measure the plant height of 8-12 tobacco plants (e.g., 8, 9, 10, 11, or 12 plants) at the middle position of each tobacco field. Under the premise that the average plant height is 85-110cm (e.g., 85cm, 95cm, 100cm, or 110cm), calculate the coefficient of variation of the plant height. Wherein, a coefficient of variation ≤ 5 is 95 points, 5 < coefficient of variation < 10 is 90 points, and a coefficient of variation ≥ 10 is 85 points.

[0017] Preferably, the evaluation scoring standard for the longest leaf length 32-40 days after transplanting is as follows: randomly select 4-10 tobacco fields (e.g., 4, 5, 6, 7, 8, 9, or 10 fields) in the evaluation base, and continuously measure the leaf length of the longest leaf of 8-12 tobacco plants (e.g., 8, 9, 10, 11, or 12 plants) at the middle position of each tobacco field, and calculate the coefficient of variation of the longest leaf length of the tobacco plant. The coefficient of variation is ≤5 for 95 points, 5 < coefficient of variation <10 for 90 points, and ≥10 for 85 points.

[0018] Preferably, the evaluation scoring standard for the leaf width of the longest leaf 32-40 days after transplanting is as follows: randomly select 4-10 tobacco fields (e.g., 4, 5, 6, 7, 8, 9, or 10 fields) in the base to be evaluated, and continuously measure the leaf width of the longest leaf of 8-12 tobacco plants (e.g., 8, 9, 10, 11, or 12 plants) at the middle position of each tobacco field, and calculate the coefficient of variation of the leaf width of the longest leaf of the tobacco plant. The coefficient of variation is ≤5 for 95 points, 5 < coefficient of variation <10 for 90 points, and ≥10 for 85 points.

[0019] Preferably, the evaluation scoring standard for plant height 60-70 days after transplanting is as follows: randomly select 4-10 tobacco fields (e.g., 4, 5, 6, 7, 8, 9, or 10 fields) in the base to be evaluated, and continuously measure the plant height of 8-12 tobacco plants (e.g., 8, 9, 10, 11, or 12 plants) at the middle position of each tobacco field, and calculate the coefficient of variation of the plant height. The coefficient of variation is ≤5 for 95 points, 5 < coefficient of variation < 10 for 90 points, and ≥10 for 85 points.

[0020] Preferably, the evaluation scoring standard for the longest leaf length in the middle 60-70 days after transplanting is as follows: randomly select 4-10 tobacco fields (e.g., 4, 5, 6, 7, 8, 9, or 10 fields) in the base to be evaluated, and continuously measure the leaf length of the longest leaf in the middle of 8-12 tobacco plants (e.g., 8, 9, 10, 11, or 12 plants) in the middle of each tobacco field. Calculate the coefficient of variation of the longest leaf length in the middle of the tobacco plant. A coefficient of variation ≤ 5 is 95 points, 5 < coefficient of variation < 10 is 90 points, and a coefficient of variation ≥ 10 is 85 points.

[0021] Preferably, the evaluation scoring standard for the width of the longest leaf in the middle of the plant 60-70 days after transplanting is as follows: randomly select 4-10 tobacco fields (e.g., 4, 5, 6, 7, 8, 9, or 10 fields) in the base to be evaluated, and continuously measure the width of the longest leaf at the top of 8-12 tobacco plants (e.g., 8, 9, 10, 11, or 12 plants) in the middle of each tobacco field. Calculate the coefficient of variation of the width of the longest leaf in the middle of the tobacco plant. A coefficient of variation ≤ 5 is 95 points, 5 < coefficient of variation < 10 is 90 points, and a coefficient of variation ≥ 10 is 85 points.

[0022] Preferably, the evaluation scoring standard for the longest upper leaf length 80-90 days after transplanting is as follows: randomly select 4-10 tobacco fields (e.g., 4, 5, 6, 7, 8, 9, or 10 fields) in the evaluation base, and continuously measure the leaf length of the longest upper leaf of 8-12 tobacco plants (e.g., 8, 9, 10, 11, or 12 plants) at the middle position of each tobacco field, and calculate the coefficient of variation of the longest upper leaf length of the tobacco plant. The coefficient of variation is ≤5 for 95 points, 5 < coefficient of variation <10 for 90 points, and ≥10 for 85 points.

[0023] Preferably, the evaluation scoring standard for the width of the longest upper leaf 80-90 days after transplanting is as follows: randomly select 4-10 tobacco fields (e.g., 4, 5, 6, 7, 8, 9, or 10 fields) in the base to be evaluated, and continuously measure the width of the longest upper leaf of 8-12 tobacco plants (e.g., 8, 9, 10, 11, or 12 plants) at the middle position of each tobacco field, and calculate the coefficient of variation of the width of the longest upper leaf of each tobacco plant. The coefficient of variation is ≤5 for 95 points, 5 < coefficient of variation < 10 for 90 points, and ≥10 for 85 points.

[0024] Preferably, the weighting coefficient for the seedling time is 15-25%, such as 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, or 25%.

[0025] Preferably, the weighting coefficient for the transplanting time is 10-20%, such as 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, or 20%.

[0026] Preferably, the weighting coefficient of the transplanting density is 10-20%, such as 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, or 20%.

[0027] Preferably, the weighting coefficient for plant height 32-40 days after transplanting is 10-20%, such as 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, or 20%.

[0028] Preferably, the weighting coefficient for the longest leaf length 32-40 days after transplanting is 5-10%, such as 5%, 6%, 7%, 8%, 9% or 10%.

[0029] Preferably, the weighting coefficient for the leaf width of the longest leaf 32-40 days after transplanting is 5-10%, such as 5%, 6%, 7%, 8%, 9% or 10%.

[0030] Preferably, the weighting coefficient for plant height 60-70 days after transplanting is 5-15%, such as 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, or 15%.

[0031] Preferably, the weighting coefficient for the longest leaf length in the middle part 60-70 days after transplanting is 5-10%, such as 5%, 6%, 7%, 8%, 9% or 10%.

[0032] Preferably, the weighting coefficient for the width of the longest leaf in the middle part 60-70 days after transplanting is 5-10%, such as 5%, 6%, 7%, 8%, 9% or 10%.

[0033] Preferably, the weighting coefficient for the longest upper leaf length 80-90 days after transplanting is 2-5%, such as 2%, 3%, 4% or 5%.

[0034] Preferably, the weighting coefficient for the width of the longest upper leaf 80-90 days after transplanting is 2-5%, such as 2%, 3%, 4% or 5%.

[0035] Preferably, the cigarette manufacturing bases are classified into grades according to the tobacco leaf consistency evaluation score, and the grading criteria are as follows:

[0036] A consistency evaluation score of ≥95 is classified as Grade I;

[0037] A score of 90 or less and a consistency evaluation score of <95 is classified as Grade II.

[0038] A consistency evaluation score of <90 indicates a grade III.

[0039] Secondly, the present invention provides an application of the evaluation method for field uniformity of tobacco leaves in a cigarette industrial base as described in the first aspect in the evaluation of field uniformity of tobacco leaves.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] This invention provides a method for evaluating the field uniformity of tobacco leaves. By identifying key agronomic indicators (seedling time, transplanting time, transplanting density, plant height, leaf length, and leaf width) at critical stages of tobacco production (seedling raising, 32-40 days after transplanting, 60-70 days after transplanting, and 80-90 days after transplanting), and comprehensively considering the field uniformity of tobacco production at the base, it establishes horizontal relationships between different key indicators of tobacco production at the base, making the evaluation results of tobacco quality more comprehensive. The field uniformity evaluation method for tobacco leaves provided by this invention has universality, readily available data, and simple operation, laying a practical foundation for objectively and scientifically evaluating the production status of tobacco leaves at the base, and has certain value for promotion and application. Attached Figure Description

[0042] Figure 1 This is a flowchart of the evaluation process for field uniformity of tobacco leaves in Example 1. Detailed Implementation

[0043] The technical solution of the present invention will be further illustrated below through specific embodiments. Those skilled in the art should understand that the embodiments described are merely illustrative of the present invention and should not be construed as limiting the invention in any way.

[0044] Unless otherwise specified, the reagents and consumables used in the following embodiments were purchased from conventional reagent manufacturers in the art; unless otherwise specified, the experimental methods and techniques used were conventional methods and techniques in the art.

[0045] Example 1

[0046] This embodiment provides a method for evaluating the field uniformity of tobacco leaves, the process of which is as follows: Figure 1 As shown:

[0047] (1) Evaluation object: B1 base.

[0048] (2) Selection of agronomic indicators and indicator weights (K) i Settings: Seedling time (K1=20%), Transplanting time (K2=15%), Transplanting density (K3=15%), Plant height 32-40 days after transplanting (K4=10%), Leaf length of the longest leaf 32-40 days after transplanting (K5=5%), Leaf width of the longest leaf 32-40 days after transplanting (K6=5%), Plant height 60-70 days after transplanting (K7=10%), Leaf length of the longest middle leaf 60-70 days after transplanting (K8=5%), Leaf width of the longest middle leaf 60-70 days after transplanting (K9=5%), Leaf length of the longest upper leaf 80-90 days after transplanting (K9=5%). 10 =5%), the longest leaf width at the top 80-90 days after transplanting (K) 11 =5%).

[0049] (3) Scoring criteria for agronomic indicators: as described in the instruction manual.

[0050] (4) Calculate the index score:

[0051] Seedling raising time:

[0052] The earliest and latest seedling time in all tobacco fields at Base B1 differed by 4 days, with S1=95 points;

[0053] Transplanting time:

[0054] The earliest and latest transplanting times for all tobacco fields in Base B1 differ by 5 days, S2=95 points;

[0055] Transplanting density:

[0056] Five tobacco fields were randomly selected from all tobacco fields in Base B1. The difference between the maximum and minimum transplanting density of the five tobacco fields was 159 plants, and S3 = 95 points.

[0057] Plant height, longest leaf length, and longest leaf width 32-40 days after transplanting:

[0058] Thirty-seven days after transplanting, five tobacco fields were randomly selected from all tobacco fields in Base B1. In each field, the height, leaf length, and leaf width of 10 tobacco plants were measured continuously at the middle position. The coefficients of variation (CV) of the height, leaf length, and leaf width of the 10 tobacco plants were calculated and found to be 5.09%, 8.70%, and 13.48%, respectively, with S4=90, S5=90, and S6=85.

[0059] Plant height, length of the longest leaf in the middle section, and width of the longest leaf in the middle section 60-70 days after transplanting:

[0060] Sixty-eight days after transplanting, five tobacco fields were randomly selected from all tobacco fields in Base B1. In each field, the height of 10 tobacco plants, the length of the longest leaf in the middle, and the width of the longest leaf in the middle were measured continuously at the middle position. The coefficients of variation (CV) of the height of the 10 tobacco plants, the length of the longest leaf, and the width of the longest leaf were calculated and were 7.29%, 9.13%, and 17.68%, respectively. S7=90 points, S8=90 points, and S9=85 points.

[0061] 80-90 days after transplanting: Length and width of the longest upper leaf.

[0062] Eighty-eight days after transplanting, five tobacco fields were randomly selected from all tobacco fields in Base B1. In each field, the length and width of the longest upper leaf of 10 tobacco plants were measured consecutively at the center. The CV values ​​(CVs) of the longest upper leaf of each of the 10 plants were calculated and found to be 7.94% and 5.66%, respectively. 10 =90 points, S 11 =90 points.

[0063] (5) Calculate the consistency evaluation score of tobacco leaves from Base B1:

[0064] .

[0065] (6) The consistency evaluation score of tobacco leaves in Base B1 is calculated to be Grade II.

[0066] Example 2

[0067] This embodiment provides a method for evaluating the field uniformity of tobacco leaves, the process of which is as follows: Figure 1 As shown:

[0068] (1) Evaluation object: B2 base.

[0069] (2) Selection of agronomic indicators and indicator weights (K) i Settings: Seedling time (K1=18%), Transplanting time (K2=17%), Transplanting density (K3=13%), Plant height 32-40 days after transplanting (K4=12%), Leaf length of the longest leaf 32-40 days after transplanting (K5=5%), Leaf width of the longest leaf 32-40 days after transplanting (K6=5%), Plant height 60-70 days after transplanting (K7=8%), Leaf length of the longest middle leaf 60-70 days after transplanting (K8=6%), Leaf width of the longest middle leaf 60-70 days after transplanting (K9=6%), Leaf length of the longest upper leaf 80-90 days after transplanting (K9=6%). 10 =5%), the longest leaf width at the top 80-90 days after transplanting (K) 11 =5%).

[0070] (3) Scoring criteria for agronomic indicators: as described in the instruction manual.

[0071] (4) Calculate the index score:

[0072] Seedling raising time:

[0073] The earliest and latest seedling time in all tobacco fields at Base B2 differed by 8 days, with S1=90 points;

[0074] Transplanting time:

[0075] The earliest and latest transplanting times for all tobacco fields in Base B2 differ by 7 days, with S2=95 points;

[0076] Transplanting density:

[0077] Six tobacco fields were randomly selected from all tobacco fields in Base B2. The difference between the maximum and minimum transplanting density of the six tobacco fields was 233 plants, and S3 = 90 points.

[0078] Plant height, longest leaf length, and longest leaf width 32-40 days after transplanting:

[0079] Thirty-three days after transplanting, six tobacco fields were randomly selected from all tobacco fields in Base B2. In each field, the height, leaf length, and leaf width of 12 tobacco plants were measured continuously at the middle position. The coefficients of variation (CV) of the height, leaf length, and leaf width of the 12 tobacco plants were calculated and found to be 12.9%, 17.68%, and 19.52%, respectively, with S4=85, S5=85, and S6=85.

[0080] Plant height, length of the longest leaf in the middle section, and width of the longest leaf in the middle section 60-70 days after transplanting:

[0081] Sixty-three days after transplanting, six tobacco fields were randomly selected from all tobacco fields in Base B2. In each field, the height of 12 tobacco plants, the length of the longest leaf in the middle, and the width of the longest leaf in the middle were measured continuously at the middle position. The coefficients of variation (CV) of the height of the 12 tobacco plants, the length of the longest leaf, and the width of the longest leaf were calculated to be 7.52%, 15.05%, and 12.87%, respectively, with S7=90 points, S8=85 points, and S9=85 points.

[0082] 80-90 days after transplanting: Length and width of the longest upper leaf.

[0083] Eighty-five days after transplanting, six tobacco fields were randomly selected from all tobacco fields in Base B2. In each field, the length and width of the longest upper leaf of 12 tobacco plants were measured consecutively at the center. The CV values ​​(CVs) of the longest upper leaf of each of the 12 plants were calculated and found to be 4.98% and 10.65%, respectively. 10 =95 points, S 11 =85 points.

[0084] (5) Calculate the consistency evaluation score of tobacco leaves from Base B2:

[0085] .

[0086] (6) The consistency evaluation score of tobacco leaves in Base B2 is calculated to be Grade III.

[0087] Example 3

[0088] This embodiment provides a method for evaluating the field uniformity of tobacco leaves, the process of which is as follows: Figure 1 As shown:

[0089] (1) Evaluation object: B3 base.

[0090] (2) Selection of agronomic indicators and indicator weights (K) i Settings: Seedling time (K1=22%), Transplanting time (K2=13%), Transplanting density (K3=15%), Plant height 32-40 days after transplanting (K4=14%), Leaf length of the longest leaf 32-40 days after transplanting (K5=5%), Leaf width of the longest leaf 32-40 days after transplanting (K6=5%), Plant height 60-70 days after transplanting (K7=10%), Leaf length of the longest middle leaf 60-70 days after transplanting (K8=6%), Leaf width of the longest middle leaf 60-70 days after transplanting (K9=6%), Leaf length of the longest upper leaf 80-90 days after transplanting (K9=10%). 10 =2%), the width of the longest upper leaf (K) 80-90 days after transplanting 11 =2%).

[0091] (3) Scoring criteria for agronomic indicators: as described in the instruction manual.

[0092] (4) Calculate the index score:

[0093] Seedling raising time:

[0094] The earliest and latest seedling time in all tobacco fields at Base B3 differed by 5 days, with S1=95 points;

[0095] Transplanting time:

[0096] The earliest and latest transplanting times for all tobacco fields in Base B3 differ by 5 days, with S2=95 points;

[0097] Transplanting density:

[0098] Five tobacco fields were randomly selected from all tobacco fields in Base B3. The difference between the maximum and minimum transplanting density of the five tobacco fields was 189 plants, and S3 = 95 points.

[0099] Plant height, longest leaf length, and longest leaf width 32-40 days after transplanting:

[0100] Forty days after transplanting, 10 tobacco fields were randomly selected from all tobacco fields in Base B3. In each field, the height, leaf length, and leaf width of 12 tobacco plants were measured continuously at the middle position. The coefficients of variation (CV) of the height, leaf length, and leaf width of the 12 tobacco plants were calculated and were 3.09%, 7.17%, and 11.88%, respectively. S4=95 points, S5=90 points, and S6=85 points.

[0101] Plant height, length of the longest leaf in the middle section, and width of the longest leaf in the middle section 60-70 days after transplanting:

[0102] Seventy days after transplanting, 10 tobacco fields were randomly selected from all tobacco fields in Base B3. In each field, the height of 12 tobacco plants, the length of the longest leaf in the middle, and the width of the longest leaf in the middle were measured continuously at the middle position. The coefficients of variation (CV) of the height of the 12 tobacco plants, the length of the longest leaf, and the width of the longest leaf were calculated, which were 5%, 13.88%, and 16.14%, respectively, with S7=95 points, S8=85 points, and S9=85 points.

[0103] 80-90 days after transplanting: Length and width of the longest upper leaf.

[0104] Ninety days after transplanting, ten tobacco fields were randomly selected from all tobacco fields in Base B3. In each field, the length and width of the longest upper leaf of 12 tobacco plants were measured consecutively at the center. The CV values ​​(CVs) of the longest upper leaf of each of the 12 plants were calculated and found to be 2.99% and 4.17%, respectively. 10 =95 points, S 11 =95 points.

[0105] (5) Calculate the consistency evaluation score of tobacco leaves from Base B3:

[0106] .

[0107] (6) The consistency evaluation score of tobacco leaves in base B3 is grade II.

[0108] Example 4

[0109] This embodiment provides a method for evaluating the field uniformity of tobacco leaves. The only difference between this method and Embodiment 1 is the weighting coefficient, while all other conditions remain the same.

[0110] The weighting coefficients and evaluation results are shown in Table 1.

[0111] Table 1

[0112]

[0113] Based on the above weighting, the consistency evaluation score of tobacco leaves from Base B1 is classified as Level III.

[0114] Example 5

[0115] This embodiment provides a method for evaluating the field uniformity of tobacco leaves, which differs from Embodiment 1 only in the scoring standards for agronomic indicators.

[0116] Agronomic indicator scoring criteria:

[0117] Seedling time: For all tobacco fields under evaluation, the earliest and latest seedling times differ by no more than 3 days, which is 95 points; the earliest and latest seedling times differ by 3 to 7 days, which is 90 points; and the earliest and latest seedling times differ by more than 7 days, which is 85 points.

[0118] Transplanting time: The earliest and latest transplanting times of all tobacco fields in the evaluation base are within 3 days, which is 95 points; the earliest and latest transplanting times are between 3 and 7 days, which is 90 points; and the earliest and latest transplanting times are more than 7 days, which is 85 points.

[0119] Transplanting density: Five representative tobacco fields were randomly selected from the base to be evaluated. The difference between the maximum and minimum transplanting density of the representative tobacco fields was within 150 plants, which was 95 points; the difference was between 150 and 200 plants, which was 90 points; and the difference was more than 200 plants, which was 85 points.

[0120] Plant height 32-40 days after transplanting: Five representative tobacco fields were randomly selected. The height of 10 tobacco plants was measured continuously at the middle position of each field. The coefficient of variation of the plant height was calculated. The coefficient of variation within 3% was 95 points, the coefficient of variation between 3% and 7% was 90 points, and the coefficient of variation above 7% was 85 points.

[0121] The longest leaf length 32-40 days after transplanting: Five random tobacco fields were selected in the base to be evaluated. The leaf length of the longest leaf of 10 tobacco plants was measured continuously at the middle position of each tobacco field. The coefficient of variation of the longest leaf length of the tobacco plant was calculated. The coefficient of variation within 3% was 95 points, the coefficient of variation between 3% and 7% was 90 points, and the coefficient of variation above 7% was 85 points.

[0122] Leaf width of the longest leaf 32-40 days after transplanting: Five tobacco fields were randomly selected from the base to be evaluated. The leaf width of the longest leaf of 10 tobacco plants was measured continuously at the middle position of each tobacco field. The coefficient of variation of the leaf width of the longest leaf of the tobacco plant was calculated. The coefficient of variation within 3% was 95 points, the coefficient of variation between 3% and 7% was 90 points, and the coefficient of variation above 7% was 85 points.

[0123] Plant height 60-70 days after transplanting: Five tobacco fields were randomly selected from the base to be evaluated. The height of 10 tobacco plants was measured continuously at the middle position of each tobacco field. The coefficient of variation of the plant height was calculated. The coefficient of variation within 3% was 95 points, the coefficient of variation between 3% and 7% was 90 points, and the coefficient of variation above 7% was 85 points.

[0124] 60-70 days after transplanting, the longest leaf length in the middle: Five tobacco fields were randomly selected from the base to be evaluated. In each tobacco field, the leaf length and width of the longest leaf at the top of 10 tobacco plants were measured continuously at the middle position. The coefficient of variation of the leaf length and width of the longest leaf at the top of the plant height was calculated. The coefficient of variation was 95 points if it was less than 3%, 90 points if it was between 3% and 7%, and 85 points if it was greater than 7%.

[0125] 60-70 days after transplanting, the width of the longest leaf in the middle: Five tobacco fields were randomly selected from the base to be evaluated. The leaf length and width of the longest leaf in the middle of 10 tobacco plants were measured continuously at the middle position of each tobacco field. The coefficient of variation of the leaf length and width of the longest leaf in the middle of the tobacco plant was calculated. The coefficient of variation was 95 points if it was less than 3%, 90 points if it was between 3% and 7%, and 85 points if it was greater than 7%.

[0126] 80-90 days after transplanting, the longest leaf length at the top: Five tobacco fields were randomly selected from the base to be evaluated. The leaf length and width of the longest leaf at the middle of 10 tobacco plants were measured continuously at the middle position of each tobacco field. The coefficient of variation of the leaf length and width of the longest leaf at the middle of the tobacco plant was calculated. The coefficient of variation was 95 points if it was less than 3%, 90 points if it was between 3% and 7%, and 85 points if it was greater than 7%.

[0127] 80-90 days after transplanting, the width of the longest leaf at the top: Five tobacco fields were randomly selected from the base to be evaluated. The length and width of the longest leaf at the middle of 10 tobacco plants in each field were measured continuously. The coefficient of variation of the length and width of the longest leaf at the middle of the tobacco plant was calculated. The coefficient of variation was 95 points if it was less than 3%, 90 points if it was between 3% and 7%, and 85 points if it was greater than 7%.

[0128] The evaluation results are shown in Table 2.

[0129] Table 2

[0130]

[0131] According to the above evaluation criteria, the consistency evaluation score of tobacco leaves from Base B1 is grade III.

[0132] Test Example 1

[0133] Precision testing

[0134] (a) Divide the B1 base into three equal parts: B11, B12, and B13.

[0135] (1) Evaluation objects: B11, B12, B13.

[0136] (2) Selection of agronomic indicators and indicator weights (K) i The settings and agronomic index scoring standards are the same as in Example 1.

[0137] (3) Calculate the index score:

[0138] Seedling raising time:

[0139] The earliest and latest seedling times in all tobacco fields in B11 differed by 0 days, and S1 = 95 points;

[0140] The earliest and latest seedling times in all tobacco fields of B12 differ by 4 days, with S1=95 points;

[0141] The earliest and latest seedling times in all tobacco fields of B13 differ by 2 days, with S1=95 points;

[0142] Transplanting time:

[0143] The earliest and latest transplanting times for all tobacco fields in B11 differ by 1 day, with S2=95 minutes;

[0144] The earliest and latest transplanting times for all tobacco fields in B12 differed by 4 days, with S2=95 points;

[0145] The earliest and latest transplanting times for all tobacco fields in B13 differ by 3 days, with S2=95 points;

[0146] Transplanting density:

[0147] Five tobacco fields were randomly selected from all tobacco fields in B11. The difference between the maximum and minimum transplanting density of the five tobacco fields was 167 plants, and S3 = 95 points.

[0148] Five tobacco fields were randomly selected from all tobacco fields in B12. The difference between the maximum and minimum transplanting density of the five tobacco fields was 133 plants, and S3 = 95 points.

[0149] Five tobacco fields were randomly selected from all tobacco fields in B13. The difference between the maximum and minimum transplanting density of the five tobacco fields was 156 plants, and S3 = 95 points.

[0150] Plant height, longest leaf length, and longest leaf width 32-40 days after transplanting:

[0151] Thirty-seven days after transplanting, five tobacco fields were randomly selected from all the tobacco fields in B11. In each field, the height, leaf length, and leaf width of 10 tobacco plants were measured continuously at the middle position. The coefficients of variation (CV) of the height, leaf length, and leaf width of the 10 tobacco plants were calculated and were 7.19%, 9.82%, and 17.14%, respectively. S4=90 points, S5=90 points, and S6=85 points.

[0152] Thirty-seven days after transplanting, five tobacco fields were randomly selected from all B12 tobacco fields. In each field, the height, length, and width of the longest leaf of 10 tobacco plants were measured continuously at the middle position. The coefficients of variation (CV) of the height, length, and width of the longest leaf of the 10 tobacco plants were calculated and were 4.09%, 7.79%, and 11.18%, respectively. S4=95 points, S5=90 points, and S6=85 points.

[0153] Thirty-seven days after transplanting, five tobacco fields were randomly selected from all tobacco fields in B13. In each field, the height, leaf length, and leaf width of 10 tobacco plants were measured continuously at the middle position. The coefficients of variation (CV) of the height, leaf length, and leaf width of the 10 tobacco plants were calculated and were 7.09%, 18.09%, and 19.1%, respectively. S4=90 points, S5=85 points, and S6=85 points.

[0154] Plant height, length of the longest leaf in the middle section, and width of the longest leaf in the middle section 60-70 days after transplanting:

[0155] Sixty-eight days after transplanting, five tobacco fields were randomly selected from all the tobacco fields in B11. In each field, the height of 10 tobacco plants, the length of the longest leaf in the middle, and the width of the longest leaf in the middle were measured continuously at the middle position. The coefficients of variation (CV) of the height of the 10 tobacco plants, the length of the longest leaf, and the width of the longest leaf were calculated and were 9.09%, 11.23%, and 23.3%, respectively. S7=90 points, S8=85 points, and S9=85 points.

[0156] Sixty-eight days after transplanting, five tobacco fields were randomly selected from all B12 tobacco fields. In each field, the height of 10 tobacco plants, the length of the longest leaf in the middle, and the width of the longest leaf in the middle were measured continuously at the middle position. The coefficients of variation (CV) of the height of the 10 tobacco plants, the length of the longest leaf, and the width of the longest leaf were calculated to be 15.1%, 10.3%, and 17.53%, respectively, with S7=85 points, S8=85 points, and S9=85 points.

[0157] Sixty-eight days after transplanting, five tobacco fields were randomly selected from all tobacco fields in B13. In each field, the height of 10 tobacco plants, the length of the longest leaf in the middle, and the width of the longest leaf in the middle were measured continuously at the middle position. The coefficients of variation (CV) of the height of the 10 tobacco plants, the length of the longest leaf, and the width of the longest leaf were calculated to be 6.76%, 8.19%, and 13.1%, respectively, with S7=90 points, S8=90 points, and S9=85 points.

[0158] 80-90 days after transplanting: Length and width of the longest upper leaf.

[0159] Eighty-eight days after transplanting, five tobacco fields were randomly selected from all B11 tobacco fields. In each field, the length and width of the longest upper leaf of 10 tobacco plants were measured consecutively at the center. The CV values ​​(CVs) of the longest upper leaf of each of the 10 plants were calculated and found to be 6.13% and 8.17%, respectively. 10 =90 points, S 11 =90 points.

[0160] Eighty-eight days after transplanting, five tobacco fields were randomly selected from all B12 tobacco fields. In each field, the length and width of the longest upper leaf of 10 consecutive tobacco plants were measured at the center. The CV values ​​(CVs) of the longest upper leaf of each of the 10 plants were calculated, and were 4.38% and 7.19%, respectively. 10 =95 points, S 11 =90 points.

[0161] Eighty-eight days after transplanting, five tobacco fields were randomly selected from all B13 tobacco fields. In each field, the length and width of the longest upper leaf of 10 tobacco plants were measured consecutively at the center. The CV values ​​(CVs) of the longest upper leaf of each of the 10 plants were calculated and found to be 7.88% and 10.1%, respectively. 10 =90 points, S 11 =85 points.

[0162] (4) Calculate the consistency evaluation scores of tobacco leaves from bases B11, B12, and B13, as shown in Table 3:

[0163] Table 3

[0164]

[0165] The above-mentioned B1, B11, B12, and B13 tobacco leaf consistency evaluation scores are all in the II category.

[0166] (ii) Divide the B2 base into three equal parts: B21, B22, and B23.

[0167] Using B21, B22, and B23 as evaluation objects, the tobacco leaf consistency evaluation scores of B21, B22, and B23 were calculated according to the evaluation method provided in Example 2. The results are shown in Table 4.

[0168] Table 4

[0169]

[0170] The above-mentioned B2, B21, B22, and B23 tobacco leaf consistency evaluation scores are all in the III category.

[0171] (iii) Divide the B3 base into three equal parts: B31, B32, and B33.

[0172] Using B31, B32, and B33 as evaluation objects, the tobacco leaf consistency evaluation scores of B31, B32, and B33 were calculated according to the evaluation method provided in Example 2. The results are shown in Table 5.

[0173] Table 5

[0174]

[0175] The above-mentioned B3, B31, B32, and B33 tobacco leaf consistency evaluation scores are all in the II category.

[0176] (iv) Taking B11, B12 and B13 as evaluation objects respectively, the tobacco leaf consistency evaluation scores of B11, B12 and B13 were calculated according to the evaluation method provided in Example 4. The results are shown in Table 6.

[0177] Table 6

[0178]

[0179] Based on the above weighting calculations, the scores for the consistency evaluation of tobacco leaves in categories B1, B11, B12, and B13 are all in category III.

[0180] (v) Taking B11, B12 and B13 as evaluation objects respectively, the tobacco leaf consistency evaluation scores of B11, B12 and B13 were calculated according to the evaluation method provided in Example 5. The results are shown in Table 7.

[0181] Table 7

[0182]

[0183] According to the above scoring criteria, the scores for the consistency evaluation of tobacco leaves in categories B1, B11, B12, and B13 are all in category III.

[0184] By repeatedly testing the tobacco leaf field consistency evaluation methods involved in Examples 1-5 and calculating the RSD values ​​of the obtained tobacco leaf consistency evaluation scores, it was found that the RSD values ​​of the methods provided in Examples 1-3 were between 0.24% and 0.31%, indicating that the tobacco leaf consistency evaluation scores obtained by the evaluation method provided by the present invention have high stability, reflecting that the evaluation method has high precision and can provide a reliable data basis for subsequent analysis and decision-making.

[0185] However, the field uniformity evaluation method for tobacco leaves provided in Examples 4-5 had RSD values ​​of 0.68% and 1.84% for repeated tests, respectively, indicating that the weighting coefficients of agronomic indicators and the evaluation scoring standards of agronomic indicators will affect the precision of the tobacco uniformity evaluation score.

[0186] Meanwhile, the results of the consistency evaluation scores in Examples 1-5 show that the consistency scores of bases B1-B3 in Examples 1-3 are classified into grades II, III, and II, respectively. In Examples 4-5, after changing the weights and scoring criteria in Example 1, the field consistency evaluation scores of the tobacco leaves in the bases are all classified into grade III. This indicates that the weighting coefficients of agronomic indicators and the evaluation scoring criteria have a significant impact on the classification results of the tobacco leaf consistency evaluation scores.

[0187] The results of the consistency evaluation scores of repeated tests in Examples 1-5 show that the same weight and scoring criteria at the same base have little impact on the consistency evaluation scores of tobacco leaves and remain basically stable.

[0188] Application Example 1

[0189] This application example uses the field consistency evaluation method for tobacco leaves from Example 1 to calculate the consistency evaluation scores for tobacco leaves B1, B2, and B3. The results are shown in Table 8.

[0190] Table 8

[0191]

[0192] The consistency of tobacco leaves from cigarette manufacturing bases B1, B2, and B3 was evaluated, with bases B1 and B3 classified as Class II and base B2 as Class III.

[0193] The aforementioned consistency evaluation of tobacco production in cigarette industrial bases refers to evaluating the performance of tobacco production in each base based on the consistency evaluation score of tobacco field production in cigarette industrial bases, thereby continuously improving the production level of tobacco in the bases.

[0194] The evaluation scores clearly revealed deficiencies in tobacco production at a certain tobacco-producing base of a cigarette manufacturing enterprise. Overall, bases B1 and B3 both achieved Category II consistency scores, indicating good field consistency. Base B2 primarily suffered from inconsistent seedling raising times, transplanting densities, and inconsistent plant growth during the transplanting stage. Based on these evaluation results, to further improve tobacco production at the base, Base B2 will focus on standardizing seedling raising times, transplanting times, and transplanting densities to promote uniform plant growth in the field.

[0195] The applicant declares that the technical solution of this invention is illustrated by the above embodiments, but this invention is not limited to the above embodiments, that is, it does not mean that this invention must rely on the above embodiments to be implemented. Those skilled in the art should understand that any improvements to this invention, equivalent substitutions of raw materials for the products of this invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of this invention.

[0196] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0197] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

Claims

1. A method for evaluating the field uniformity of tobacco leaves in a cigarette manufacturing base, characterized in that, The field uniformity of tobacco leaves is evaluated by dividing the tobacco leaf uniformity evaluation score, which is calculated using the following formula: ； Where S represents the tobacco leaf consistency evaluation score. The evaluation scores represent various tobacco agronomic indicators. The weighting coefficient representing this agronomic indicator; The tobacco agronomy refers to any one or at least a combination of two of the following: seedling raising time, transplanting time, transplanting density, plant height 32-40 days after transplanting, leaf length of the longest leaf 32-40 days after transplanting, leaf width of the longest leaf 32-40 days after transplanting, plant height 60-70 days after transplanting, leaf length of the longest middle leaf 60-70 days after transplanting, leaf width of the longest middle leaf 60-70 days after transplanting, leaf length of the longest upper leaf 80-90 days after transplanting, and leaf width of the longest upper leaf 80-90 days after transplanting.

2. The evaluation method for field uniformity of tobacco leaves in a cigarette manufacturing base according to claim 1, characterized in that, The Selected from 85, 90 or 95, Selected from any value between 2% and 25%, and all tobacco agronomic indicators The sum is 100.

3. The evaluation method for field uniformity of tobacco leaves in a cigarette manufacturing base according to claim 1 or 2, characterized in that, The evaluation scoring criteria for seedling time are as follows: 95 points are awarded if the difference between the earliest and latest seedling time of the base under evaluation is ≤5 days; 90 points are awarded if the difference between the earliest and latest seedling time is <10 days and 5 days <5 days; and 85 points are awarded if the difference between the earliest and latest seedling time is ≥10 days.

4. The evaluation method for field uniformity of tobacco leaves in a cigarette manufacturing base according to any one of claims 1-3, characterized in that, The evaluation scoring criteria for transplanting time are as follows: 95 points are awarded if the difference between the earliest and latest transplanting times at the base under evaluation is ≤7 days; 90 points are awarded if the difference between the earliest and latest transplanting times is <7 days and <10 days; and 85 points are awarded if the difference between the earliest and latest transplanting times is ≥10 days. Preferably, the evaluation scoring criteria for the transplanting density are as follows: a difference of ≤200 plants between the maximum and minimum transplanting density in the tobacco field is 95 points; a difference of 200 plants < the difference between the maximum and minimum transplanting density in the tobacco field is <250 plants is 90 points; and a difference of ≥250 plants between the maximum and minimum transplanting density in the tobacco field is 85 points.

5. The evaluation method for field uniformity of tobacco leaves in a cigarette manufacturing base according to any one of claims 1-4, characterized in that, The evaluation scoring standard for plant height 32-40 days after transplanting is to calculate the coefficient of variation of tobacco plant height, where a coefficient of variation ≤ 5 is 95 points, 5 < coefficient of variation < 10 is 90 points, and a coefficient of variation ≥ 10 is 85 points. Preferably, the evaluation scoring standard for the longest leaf length 32-40 days after transplanting is to calculate the coefficient of variation of the longest leaf length of the tobacco plant, wherein a coefficient of variation ≤ 5 is 95 points, 5 < coefficient of variation < 10 is 90 points, and a coefficient of variation ≥ 10 is 85 points. Preferably, the evaluation score standard for the leaf width of the longest leaf 32-40 days after transplanting is the coefficient of variation of the leaf width of the longest leaf of the tobacco plant, wherein a coefficient of variation ≤ 5 is 95 points, 5 < coefficient of variation < 10 is 90 points, and a coefficient of variation ≥ 10 is 85 points.

6. The evaluation method for field uniformity of tobacco leaves in a cigarette manufacturing base according to any one of claims 1-5, characterized in that, The evaluation scoring standard for plant height 60-70 days after transplanting is to calculate the coefficient of variation of tobacco plant height, where a coefficient of variation ≤ 5 is 95 points, 5 < coefficient of variation < 10 is 90 points, and a coefficient of variation ≥ 10 is 85 points. Preferably, the evaluation scoring standard for the longest leaf length in the middle of the tobacco plant 60-70 days after transplanting is to calculate the coefficient of variation of the longest leaf length in the middle of the tobacco plant, wherein a coefficient of variation of ≤5 is 95 points, 5 < coefficient of variation <10 is 90 points, and a coefficient of variation ≥10 is 85 points. Preferably, the evaluation scoring standard for the width of the longest leaf in the middle of the tobacco plant 60-70 days after transplanting is to calculate the coefficient of variation of the width of the longest leaf in the middle of the tobacco plant, wherein a coefficient of variation ≤ 5 is 95 points, 5 < coefficient of variation < 10 is 90 points, and a coefficient of variation ≥ 10 is 85 points. Preferably, the evaluation scoring standard for the longest upper leaf length 80-90 days after transplanting is to calculate the coefficient of variation of the longest upper leaf length of the tobacco plant, wherein a coefficient of variation ≤ 5 is 95 points, 5 < coefficient of variation < 10 is 90 points, and a coefficient of variation ≥ 10 is 85 points. Preferably, the evaluation scoring standard for the width of the longest upper leaf 80-90 days after transplanting is to calculate the coefficient of variation of the width of the longest upper leaf of the tobacco plant, wherein a coefficient of variation ≤ 5 is 95 points, 5 < coefficient of variation < 10 is 90 points, and a coefficient of variation ≥ 10 is 85 points.

7. The evaluation method for field uniformity of tobacco leaves in a cigarette manufacturing base according to any one of claims 1-6, characterized in that, The weighting coefficient for the seedling raising time is 15-25%; Preferably, the weighting factor for the transplanting time is 10-20%; Preferably, the weighting coefficient for the transplanting density is 10-20%.

8. The evaluation method for field uniformity of tobacco leaves in a cigarette manufacturing base according to any one of claims 1-7, characterized in that, The weighting factor for plant height 32-40 days after transplanting is 10-20%; Preferably, the weighting coefficient for the longest leaf length 32-40 days after transplanting is 5-10%; Preferably, the weighting coefficient for the leaf width of the longest leaf 32-40 days after transplanting is 5-10%.

9. The evaluation method for field uniformity of tobacco leaves in a cigarette manufacturing base according to any one of claims 1-8, characterized in that, The weighting factor for plant height 60-70 days after transplanting is 5-15%; Preferably, the weighting coefficient for the longest leaf length in the middle part of the plant 60-70 days after transplanting is 5-10%; Preferably, the weighting coefficient for the width of the longest leaf in the middle section 60-70 days after transplanting is 5-10%; Preferably, the weighting coefficient for the longest upper leaf length 80-90 days after transplanting is 2-5%; Preferably, the weighting coefficient for the width of the longest upper leaf 80-90 days after transplanting is 2-5%; Preferably, the cigarette manufacturing bases are classified into grades according to the tobacco leaf consistency evaluation score, and the grading criteria are as follows: A consistency evaluation score of ≥95 is classified as Grade I; A score of 90 or less and a consistency evaluation score of <95 is classified as Grade II. A consistency evaluation score of <90 indicates a grade III.

10. The application of the evaluation method for field uniformity of tobacco leaves in a cigarette industrial base according to any one of claims 1-9 in the evaluation of field uniformity of tobacco leaves.

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