CN102156064A - Sampling method of mineral element nutrition diagnosis of Sauropus androgynus plants - Google Patents
Sampling method of mineral element nutrition diagnosis of Sauropus androgynus plants Download PDFInfo
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- CN102156064A CN102156064A CN2011100630676A CN201110063067A CN102156064A CN 102156064 A CN102156064 A CN 102156064A CN 2011100630676 A CN2011100630676 A CN 2011100630676A CN 201110063067 A CN201110063067 A CN 201110063067A CN 102156064 A CN102156064 A CN 102156064A
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Abstract
The invention belongs to the technical field of plant nutrition diagnosis, and relates to a sampling method of mineral element nutrition diagnosis of Sauropus androgynus plants, comprising steps of: collecting tender shoot samples at 8-12cm of the Sauropus androgynus top in a Sauropus androgynus field according to the traditional diagonal line or S-shaped sampling manner, rinsing the tender shoot samples, airing naturally, cutting up the tender shoot samples and smashing into homogenate, storing in a sealing manner, and preparing into samples to be tested for future use. In the invention, the fresh tender shoots of Sauropus androgynus plants are used as the test object; the soil or environment pollution is relatively small; the analysis result is accurate and reliable; good representativeness is provided; the nutrition level of Sauropus androgynus plants can be diagnosed fast, thereby having realistic significances for production of Sauropus androgynus and improvement of product quality.
Description
Technical field
The invention belongs to the diagnosis of plant nutrition technical field, relate to a kind of sampling method of plant and mineral element nutrient diagnosis, specifically is a kind of sampling method of setting young dish plant and mineral element nutrient diagnosis.
Background technology
Set young dish (Sauropus androgynus) formal name used at school house lizard wood, have another name called Wuzhi Mountain edible wild herbs, perennial undershrub plant.Originate in the torrid areas, Southeast Asia, all have wild on China Hainan, Guangdong, Guangxi, Fujian, Yunnan and other places and cultivation, all plucking the tender tip when edible is vegetable edible.
Set young dish and have higher nutritive value, be rich in protein, multivitamin and several mineral materials, wherein protein and vitamin C are more than 20 times of common vegetable, and carrotene and vitamin B2 content are more than 10 times of common vegetable.In addition, set young dish through frying (or boiling) food, the mouthfeel delicacy is clear and melodious, the delicious flavour uniqueness.In Guangdong, all there is larger area production in Hainan, Guangxi, wherein there is the cultivated area of considerable scale cities and counties, middle part, Hainan, are that the backward area masses produce one of effective way of getting rich.
Because the production of the young dish of tree is still based on the extensive mode of production at present, fertilizing management blindness is bigger, and production cost increases, and product quality is not high.A large amount of studies show that, plant nutrient is diagnosed and instructed fertilising and production management with this is to improve the productivity effect effective way, in time understand the mineral matter nutritional level of plant by diagnosis of plant nutrition, fertilising is regulated targetedly, what accomplishes to lack what is mended, shoot the arrow at the target, saved production cost, improve productivity effect.
At present, agri-scientific research and produce to go up the analytical approach that plant is carried out the mineral element nutrient diagnosis and normally measure the rich scarce degree that the content of mineral element in the plant leaf blade dry is judged the plant constituent content, instruct fertilising, coordinate plant growth, it also is traditional diagnosis of plant nutrition method, but the problem that has several respects when the method is applied to the young dish diagnosis of plant nutrition of tree: 1, the determination object of traditional diagnosis method is plant leaf blade dry (being that the laggard row oven dry of the fresh blade of herborization pulverizing makes sample), each sample need be gathered more blade, and set young dish is the undershrub plant, blade is less and lack, and it is bigger to gather difficulty.2, traditional diagnosis of plant nutrition method is in order to ensure the representativeness of sample, generally needing the fixing blade of gathering privileged site on the plant is specimen, and it is less to set young dish plant individual plant, planting density is bigger again, and the mineral matter element skewness in the blade, metabolism takes place between leaflet tablet and old blade some element shifts, and therefore is difficult to collect representative sample by privileged site.3, the young dish of tree is perennial shrub, because blade pitch is overhead nearer, passes through processes such as long-term fertilizing, watering or rainwater spatter with water, and most blades have been influenced the accuracy of measurement result greatly by the mineral matter severe contamination in the soil.4, after fresh blade is gathered, need dry, pulverization process, sample making course is loaded down with trivial details, time-consuming.
Therefore, the sampling method of research and the young dish plant and mineral element nutrient diagnosis of definite tree has realistic meaning.
Summary of the invention
The objective of the invention is provides a kind of sampling method of setting young dish plant and mineral element nutrient diagnosis at the deficiencies in the prior art, to set the fresh tender tip of young dish plant is tested object, be subjected to the pollution of soil or environment less, analysis result accurately and reliably, has good representativeness, but quick diagnosis is set young dish plant nutrient level, instructs and produces, and improves the quality of products.
Because the tender tip of the young dish of tree is the growth organ of the young dish plant of tree, wherein contain abundant mineral matter element, can reflect the mineral matter nutritional level in the young dish plant of tree, and edible is to be material with the tender tip, by measuring the content of tender tip Mineral Elements in Jadeite Shellfish, understand and grasp the rich scarce degree of the young dish plant and mineral element of tree, fertilising is regulated targetedly, instruct and produce, improve productivity effect and product quality.
The technical solution adopted in the present invention:
A kind of sampling method of setting young dish plant and mineral element nutrient diagnosis, sample mode by the linear or S shape in traditional diagonal angle, in the young field of vegetables of tree ground, gather the tender tip sample of the young dish of tree top 8～12cm, successively, dry chopping naturally with tap water and rinsed with deionized water sample, in food processor, smash into homogenate to pieces, sealing is preserved, and makes testing sample, and is standby.
During detection, take by weighing sample in beaker, put on the electric hot plate 80 ℃ of dryings in advance, add 120 ℃ of low temperature of nitric acid again and clear up.After treating that decomposed sample fully, drip superoxol, heat to 150 ℃ and continue to clear up, till remaining a little yellow transparent sample solution.Sample is taken out cooling, shift and decide and to the 25ml volumetric flask, make solution to be measured, standby.
Adopt method such as flame atomic absorption method to measure the content of elements such as potassium, calcium, magnesium, copper, manganese, zinc, iron then.
Advantage of the present invention is mainly reflected in following several respects:
1, the present invention is a tested object to set the fresh tender tip of young dish plant, and than great, the sample size that needs is little, gathers easily.
2, the result of analytical test is stable, has good representativeness.
3, because the tender tip of the young dish of tree is grown in the top of plant, higher apart from ground, and growth time is short, therefore is subjected to the pollution of soil or environment less, and analysis result is accurately and reliably.
4, owing to fiber in the tender tip of the young dish of tree is less, sample preparation is even, fast, conveniently.
5, the present invention can quick diagnosis set young dish plant nutrient level, instructs and produces, and improves the quality of products, and has realistic meaning.
Embodiment
The invention will be further described to adopt indefiniteness embodiment below.
Embodiment one
By the linear sample mode in traditional diagonal angle, in the young field of vegetables of tree ground, gather the tender tip sample of the young dish of tree top 10cm, successively use tap water and rinsed with deionized water sample, naturally dry, homogenate is smashed in chopping to pieces in food processor, sealing is preserved, and makes testing sample, and is standby.
Detect: by the linear sample mode in traditional diagonal angle, in the young field of vegetables of same tree ground, gather the tree tender tip of young dish (10cm), leaflet tablet (the fluffy leaflet tablet of 2-3 under the tender tip), old blade (setting the old blade of young dish base portion) sample, each gathers 11 increments, measure the content of multiple element in each sample respectively, the results are shown in Table 1.
Multiple constituent content measurement result (mean value) in the tender tip of the table 1 young dish of tree, leaflet tablet and the old leaf sample
The result shows: the regularity of distribution of setting different elements in the young dish blade has nothing in common with each other, metabolism takes place between leaflet tablet and old blade some element shifts, wherein, the potassium content regularity of distribution shows as leaflet tablet＞old blade, the constituent content regularities of distribution such as calcium, magnesium, manganese, iron show as leaflet tablet＜old blade, and the measurement result test accuracy all not ideal enough (CV＞10.0%) of leaflet tablet sample and old leaf sample.By contrast, the measurement result test accuracy of tender tip sample higher (CV＜5.0%), random sampling can embody good sample representativeness.
Embodiment two
By the sample mode of traditional S shape, in the young field of vegetables of tree ground, gather the tender tip sample of the young dish of tree top 9cm, successively use tap water and rinsed with deionized water sample, naturally dry, homogenate is smashed in chopping to pieces in food processor, sealing is preserved, and makes testing sample, and is standby.
Detect: pluck 11 parts of tender tip samples of the young dish of tree on same planting site simultaneously, the content of multiple element in the working sample is tried to achieve mean value respectively
The standard deviation (SD) and the coefficient of variation (CV) the results are shown in Table 2.
Multiple constituent content measurement result in the tender tip of the table 2 young dish of tree
The result shows: the analysis result of 7 kinds of mineral matter elements being measured is stable, analytical precision higher (CV＜5.0%), simultaneously, result's variation very little (CV＜1.0%) of the moisture of surveying, the tender tip sample of the young dish of specification tree is highly stable, random sampling can embody good sample representativeness, therefore with its object as the young dish diagnosis of plant nutrition sampling and measuring of tree.In addition, it is even to set the less sample preparation of the tender tip sample fiber of young dish, and fast, convenient, direct analytical test after making beating is handled has reduced the sample preparation link that the sample oven dry is pulverized, and raising analysis efficiency and test accuracy are guaranteed the plant nutrient scientific evaluation.
Embodiment three
By the sample mode of traditional S shape, in the young field of vegetables of tree ground, gather the tender tip sample of the young dish of tree top 11cm, successively use tap water and rinsed with deionized water sample, naturally dry, homogenate is smashed in chopping to pieces in food processor, sealing is preserved, and makes testing sample, and is standby.
Detect: the tender tip of the young dish of tree of on the vegetable plot of the same young dish of tree, plucking 15 centimetres (handling 2), 20 centimetres (handling 3) respectively, and above-mentioned 11 centimetres testing sample (handling 1), each collects 6 duplicate samples, and the content of multiple element in the difference working sample of back is handled in making beating, the results are shown in Table 3.
Table 3 different length is set multiple constituent content measurement result (mean value) in the tender tip of young dish
The result shows: and handle 2 and handle 3 and compare because it is few to handle the fiber content of 1 sample, the sample making beating evenly, the degree of accuracy of measurement result higher (CV＜5.0%), therefore determining 8～12 centimetres is unified sampling length specification.
Claims (1)
1. sampling method of setting young dish plant and mineral element nutrient diagnosis, it is characterized in that: by the sample mode of the linear or S shape in traditional diagonal angle, in the young field of vegetables of tree ground, gather the tender tip sample of the young dish of tree top 8～12cm, successively, dry chopping naturally with tap water and rinsed with deionized water sample, in food processor, smash into homogenate to pieces, sealing is preserved, and makes testing sample, and is standby.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1679319A1 (en) * | 1989-07-12 | 1991-09-23 | Всесоюзный Научно-Исследовательский Институт "Геоцветмет" | Method for preparing samples process for vegetable materials for x-ray fluorescence analysis |
| CN100464187C (en) * | 2006-11-03 | 2009-02-25 | 南通市农产品质量检验测试中心 | Method for detecting residue of Metalaxyl, badistan, thiophanate-methyl in vegetable |
| CN101779565A (en) * | 2010-01-25 | 2010-07-21 | 中国热带农业科学院分析测试中心 | Production method for lowering cadmium content in Sauropus androgynus product |
| CN101915688A (en) * | 2010-08-09 | 2010-12-15 | 吉林大学 | Processing method for detecting rogor residues in vegetables |
-
2011
- 2011-03-07 CN CN2011100630676A patent/CN102156064A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1679319A1 (en) * | 1989-07-12 | 1991-09-23 | Всесоюзный Научно-Исследовательский Институт "Геоцветмет" | Method for preparing samples process for vegetable materials for x-ray fluorescence analysis |
| CN100464187C (en) * | 2006-11-03 | 2009-02-25 | 南通市农产品质量检验测试中心 | Method for detecting residue of Metalaxyl, badistan, thiophanate-methyl in vegetable |
| CN101779565A (en) * | 2010-01-25 | 2010-07-21 | 中国热带农业科学院分析测试中心 | Production method for lowering cadmium content in Sauropus androgynus product |
| CN101915688A (en) * | 2010-08-09 | 2010-12-15 | 吉林大学 | Processing method for detecting rogor residues in vegetables |
Non-Patent Citations (5)
| Title |
|---|
| <中华人民共和国农业行业标准> 20060401 中华人民共和国农业部 NY/T5344.3－2006 无公害食品 产品抽样规范 第3部分：蔬菜 第1页 1 , * |
| <海南树仔菜中镉含量测定及质量风险评估> 20090930 周聪等 热带作物学报 第1378－1382页 1 第30卷, 第9期 * |
| 20020930 黄澜等 海南树仔菜保健价值的研究 第121－123页 1 第23卷, 第9期 * |
| 中华人民共和国农业部: "NY/T5344.3－2006 无公害食品 产品抽样规范 第3部分：蔬菜", <中华人民共和国农业行业标准> * |
| 黄澜等: "海南树仔菜保健价值的研究", <食品科学> * |
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Application publication date: 20110817 |