Selenium-enriched corn planting method capable of improving quality and efficiency and reducing heavy metal pollution

A technology for improving quality and efficiency, selenium-enriched corn, applied in the agricultural field, can solve problems such as cadmium pollution, heavy metal pollution in selenium-enriched soil, etc., and achieve the effects of simple device structure, improved quality and yield, and increased stress resistance

Active Publication Date: 2021-06-25
黑龙江省农业科学院
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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of heavy metal pollution, especially cadmium pollution in selenium-rich soil in Hailun area, and provide a kind of selenium-rich corn planting method that improves quality and efficiency and reduces heavy metal pollution

Method used

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  • Selenium-enriched corn planting method capable of improving quality and efficiency and reducing heavy metal pollution
  • Selenium-enriched corn planting method capable of improving quality and efficiency and reducing heavy metal pollution
  • Selenium-enriched corn planting method capable of improving quality and efficiency and reducing heavy metal pollution

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Embodiment 1

[0035] A kind of selenium-enriched corn planting method that improves quality and efficiency and reduces heavy metal pollution of the present invention, it is carried out according to the following steps:

[0036] Step 1. Select the selenium content greater than 0.4 mg·kg in Hongguang Farm, Hailun, Heilongjiang Province -1 Two soil samples, the first soil sample 1kg was added to 15L of AB-DTPA extraction solution for 90min extraction, and the extraction solution A was collected; the second soil sample was added to 10L of 0.5mol / L NaHCO 3 Extraction solution leaching 90min, collect extraction solution B; Extraction solution A and extraction solution B are mixed according to equal volume, obtain selenium-containing extraction solution, wherein the selenium content in the selenium-containing extraction solution is 3mg / L;

[0037] Step 2: Take Pengyu 14 corn seedlings at the 2-3 leaf stage and place them in the selenium-containing extract solution for 12 hours, then spray 1.0 mmol...

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Abstract

The invention discloses a selenium-enriched corn planting method capable of improving quality and efficiency and reducing heavy metal pollution, and relates to the field of agriculture. The selenium-enriched corn planting method aims at solving the problem of heavy metal pollution, especially cadmium pollution, of selenium-enriched soil in Hailun area. According to the selenium-enriched corn planting method, after seedlings are treated by adopting an extracting solution containing cadmium, the influence of heavy metal, especially cadmium, on the growth of corn is reduced by utilizing low-concentration selenium. In addition, the fertility is increased by adopting earthworm fertilizer, so that the stress resistance of the corn is improved, and the quality and the yield of the corn are improved. According to the scheme, after the selenium-enriched corn planting method is used for specific selenium-enriched soil in Hailun area in Heilongjiang province, the stress resistance, especially the stress resistance to heavy metal pollution, of corn crops can be remarkably improved, and the stress resistance of cadmium is the most important. Moreover, the quality and the yield of the crops can be improved. The selenium-enriched corn planting method is applied to the field of corn planting.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a selenium-enriched corn planting method that improves quality and efficiency and reduces heavy metal pollution. Background technique [0002] Selenium is a rare dispersed element, which is unevenly distributed in the natural environment, thus forming different selenium-rich regions and selenium-deficient zones around the world. The content of heavy metals in soil directly affects the quality and safety of agricultural products. Heavy metal pollution in farmland soil mainly comes from atmospheric deposition, sewage irrigation, application of agricultural materials (fertilizers, pesticides, mulch, etc.) and solid waste stacking. With the development of industrialization and urbanization, the problem of heavy metals in farmland has become increasingly prominent. Song Wei et al. analyzed the heavy metal pollution of cultivated land soil in 138 typical regions of my country according to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/20A01G7/06A01K67/033A01C21/00A01G25/14B65H75/44B08B3/02
CPCA01G22/20A01G7/06A01K67/0332A01C21/00A01G25/14B65H75/4492B08B3/02
Inventor 赵杨
Owner 黑龙江省农业科学院
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