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Production method for lowering cadmium content in Sauropus androgynus product

A production method and the technology of saplings, which are applied in the production field of reducing cadmium content in saplings, can solve the problems of reducing cadmium content in saplings, and achieve the effects of ensuring output, quality, safety and stability, and strong operability

Inactive Publication Date: 2012-05-09
ANALYSIS & TESTING CENT CHINESE ACADEMY OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the planting methods of saplings are all using traditional vegetable planting methods, and there are no related cultivation methods and related reports that use planting methods to reduce the cadmium content in saplings

Method used

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  • Production method for lowering cadmium content in Sauropus androgynus product

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] After selecting the planting land, level it up and plow about 30 cm deep. At the same time, use the colorimetric method to measure the soil pH, and adjust the pH value to 6.90. Raise a 100 cm wide furrow, and the width of the ditch between the furrows is 30 cm, and then mix 2300 kg of fermented peanut cake fertilizer, 70 kg of superphosphate, and 120 kg of plant ash per mu as a base fertilizer, and plant after covering the topsoil (Plant row spacing 15 cm × 25 cm), regular irrigation and watering after planting; about 60 days after planting, the plant grows to about 60 cm, and can be harvested when it grows tender shoots. Pick 12 cm tender tips and bundle them into small Put it, and it will be a product for sale. Spray organic or inorganic liquid fertilizers with cadmium content in line with national product standards after harvesting once or twice.

Embodiment 2

[0035] After selecting the planting land, level it and plow about 30 cm deep. At the same time, use the pH meter method to measure the soil pH, and adjust the pH value to 7.10. Raise a 100 cm wide furrow, and the ditch between the furrows is 30 cm wide, and then mix 2,700 kg of fermented bean cake fertilizer, 90 kg of superphosphate, and 30 kg of potassium sulfate per mu as a base fertilizer. Planting (plant row spacing 15 cm × 25 cm), regular irrigation and watering after planting; about 60 days after planting, the plant grows to about 60 cm, and can be harvested when young shoots grow. Pick 12 cm tender tips and bundle them into A small handle is a ready-to-sale product. Spray organic or inorganic liquid fertilizers with cadmium content in line with national product standards after harvesting once or twice.

[0036] For production bases with a large planting scale, samples are taken before picking and tested by graphite furnace atomic absorption spectrometry, and the cadmiu...

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Abstract

The invention relates to a production method for lowering cadmium content in a Sauropus androgynus product. After soil is leveled and is in deep ploughing, the PH value of the soil is determined and then adjusted; after a ridge is ploughed, base fertilizer is applied; Sauropus androgynus is planted after covering surface soil and is irrigated and watered at regular time; when tender tips grow on the plant, a tender tip of which the length is 12 cm is picked to obtain the Sauropus androgynus product with low cadmium content; the base fertilizer is formed by mixing fermented high-protein organic fertilizer, superphosphate and ant ash or by mixing fermented high-protein organic fertilizer, superphosphate and lemery salt. The invention has simple operation method, effectively fixes cadmium ions in soil by regulating the PH value of soil and applying high-protein organic fertilizer, reduces the possibility that the root of the Sauropus androgynus adsorbs cadmium ions from oil so as to effectively control cadmium content in the Sauropus androgynus while ensuring yield. The produced Sauropus androgynus product has stable and safe quality, can be applied on small-area or large-scale production cultivation and has strong operability.

Description

technical field [0001] The invention belongs to the field of plant cultivation, in particular to a production method for reducing the cadmium content in saber vegetable products. Background technique [0002] Sauropus androgynus (Sauropus androgynus) scientific name is Shougongmu, also known as Wuzhishan Wild Vegetable, Tianluxiang, etc. It belongs to Euphorbiaceae and is a small perennial shrub. It is native to the tropical regions of Southeast Asia. It is wild and cultivated in Hainan, Guangdong, Guangxi, Fujian, Yunnan and other places in my country. The young shoots are picked by the people as vegetables. [0003] Shuzai has high nutritional value and is rich in protein, vitamins and minerals. Among them, the 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 being fried (or boiled), the saber vegetable has a delicate and crisp taste, d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01C21/00C05G1/00
CPCY02P60/21
Inventor 周聪罗金辉赵敏叶海辉何秀芬
Owner ANALYSIS & TESTING CENT CHINESE ACADEMY OF TROPICAL AGRI SCI
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