Sampling method of mineral element nutrition diagnosis of Sauropus androgynus plants

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 [0001] The invention belongs to the technical field of plant nutrition diagnosis, and relates to a sampling method for plant mineral element nutrition diagnosis, in particular to a sampling method for tree seedling plant mineral element nutrition diagnosis. Background technique [0002] Sauropus androgynus (Sauropus androgynus) scientific name is Shougongmu, also known as Wuzhishan edible, a small perennial shrub. It is native to tropical regions of Southeast Asia, and is wild and cultivated in Hainan, Guangdong, Guangxi, Fujian, Yunnan and other places in my country. When eating, the tender shoots are picked for vegetable food. [0003] Tree seedlings have high nutritional value, rich in protein, multiple vitamins and multiple minerals. Among them, protein and vitamin C are more than 20 times that of ordinary vegetables, and the content of carotene and vitamin B2 is more than 10 times that of ordinary vegetables. In addition, after sautéed (or boiled) eaten, the t...

AI Technical Summary

Problems solved by technology

[0005] At present, the analysis method for mineral element nutrition diagnosis of plants in agricultural scientific research and production is usually to measure the content of mineral elements in the dry matter of plant leaves to judge the abundance of plant elements, guide fertilization, and regulate plant growth. Plant nutrition diagnosis method, but there are several problems when this method is applied to the plant nutrition diagnosis of saplings: 1, the measurement object of traditional diagnosis method is the dry matter of plant leaves (that is, dry and pulverize the obtained sample after collecting the fresh leaves of plants) , more leaves need to be collected for each sample, while sargassum is a small shrub plant with small and few leaves, so it is more difficult to collect

2. In order to ensure the representativeness of the samples, the traditional plant nutrition diagnosis method generally needs to collect the leaves of specific parts of the plants as the test samples. However, the single plant of the arborina plant is small, the planting density is relatively high, and the mineral elements in the leaves Uneven distribution, some elements are metabolically transferred between young leaves and old leaves, making it difficult to collect representative samples by specific sites

3. Aberdeen is a perennial shrub. Because the leaves are close to the ground, after long-term fertilization and watering or rain splashing, most of the leaves are seriously polluted by minerals in the soil, which greatly affects the accuracy of the measurement results.

4. After the fresh leaves are collected, they need to be dried and crushed. The sample preparation process is cumbersome and time-consuming

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