Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for planting kenaf on heavy metal contaminated soil

A technology that pollutes soil and heavy metals, applied in botany equipment and methods, soil preparation methods, horticulture, etc., can solve problems such as corrosion, increased absorption and accumulation of heavy metal elements, and threats to root development

Active Publication Date: 2013-11-27
INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Second, the applicant's research results and practice also show that even if some varieties have the ability to resist heavy metal pollution, the root system development in the early growth stage of the heavy metal polluted area, especially the seedling stage, is still seriously threatened, and even due to heavy metal "corrosion" leading to death and serious shortage of seedlings
[0009] Fourth, the pH value of the soil is directly related to the activity of heavy metals in the soil, which affects the quality of agricultural products
The results of years of research and practice by the applicant show that the long-term application of large amounts of physiologically acidic nitrogen fertilizers such as ammonium chloride, ammonium sulfate, and ammonium nitrate and chemically acidic phosphate fertilizers such as superphosphate will directly lead to a decrease in the pH value of the soil. Increase the activity of heavy metals in the soil, increase the absorption and accumulation of heavy metal elements by crops, and affect the quality of agricultural products

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for planting kenaf on heavy metal contaminated soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] The present invention will be described in further detail below in conjunction with the examples, but it is not intended to limit the present invention. Any equivalent replacement in the field according to the disclosure of the present invention belongs to the protection scope of the present invention.

[0057] A method for planting kenaf on heavy metal polluted soil, the steps are:

[0058] A. Prepare the land to build gardens, apply passivating agents, and reduce the activity of heavy metals in the soil.

[0059] Choose sunny days in mid-April or late April or early May to carry out field cultivation such as deep plowing, compartment separation, ridging, ditching, and soil preparation on heavy metal-contaminated soils.

[0060] The plowing depth of the hemp garden soil should be 35 or 37 or 38 or 40 cm, depending on the terrain of the hemp garden and the degree of heavy metal pollution: shallow plowing (35-37 cm) is suitable for hemp gardens on hillsides, while Deep...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for planting kenaf on heavy metal contaminated soil. The method includes the following steps: A, preparing the land and building an area, and applying an passivant to reduce the activity of soil heavy metal; B, selecting a specific kenaf variety with high heavy metal pollution resistant capacity, sowing sufficiently in due time, and guaranteeing a full stand through one sawing; C, determining suitable close planting, performing thinning and final singling in due time, and reserving basic seedlings; D, intertilling and weeding timely, topdressing and irrigating reasonably, and cultivating effective strong plants; and E, strengthening pest control and achieving high yield of the kenaf. The original kenaf outputs of mild, moderate and serious contaminated kenaf gardens are 276.2+ / -25.5, 247.6+ / -23.4 and 220.9+ / -21.2kg / mu respectively when the method is used for planting the kenaf, the high yield level in southern kenaf areas in our country is reached, content of heavy metal in the original kenaf can be controlled within a relative standard limit, agricultural safety and efficient utilization of the heavy metal contaminated soil are achieved, the technique is simple and convenient, the method is easy to implement, and an extremely wide application prospect is provided in vast heavy metal contaminated areas.

Description

technical field [0001] The invention belongs to the technical field of agricultural environment conservation and restoration, and more specifically relates to a method for planting kenaf on heavy metal-polluted soil, which is suitable for popularization by farmers and agricultural technology departments in heavy metal-polluted areas. Background technique [0002] With the continuous advancement of industrialization and urbanization, the problem of heavy metal pollution in my country's soil has been paid more and more attention by people. According to relevant reports, in the early 1980s, the area of ​​cultivated land polluted by heavy metals such as cadmium, lead, mercury, arsenic, chromium, and nickel in my country was only 2.67 million hectares, but it increased to 6.67 million hectares in 1988 and exceeded 1,000 by the end of the last century. million hectares, which has exceeded 20 million hectares, accounting for about 20% of the total arable land area. What's more seri...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01B79/02
Inventor 黄道友朱奇宏刘守龙罗尊长饶中秀任雪菲夏战鹰王帅曹晓玲王继宇席园
Owner INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products