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A biological control method for simultaneously reducing pests and arsenic pollution in pomegranate orchards

A technology for arsenic pollution and pomegranate gardens, applied in the field of biological pest control and agricultural planting, can solve the problems of high cost and difficulty in controlling the stability of the method effect, and achieve the effect of reducing arsenic content

Active Publication Date: 2021-11-16
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current research only focuses on extracting active ingredients from Centipede Grass to inhibit bacteria or poison insects. The cost of the method used in field agricultural planting is relatively high, and the stability of the effect of the method is difficult to control
Have not yet seen the report about utilizing centipede grass live insect repellent

Method used

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  • A biological control method for simultaneously reducing pests and arsenic pollution in pomegranate orchards
  • A biological control method for simultaneously reducing pests and arsenic pollution in pomegranate orchards
  • A biological control method for simultaneously reducing pests and arsenic pollution in pomegranate orchards

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: Pomegranate Interplanting Centipede Grass in Areas with High Geological Arsenic Background to Repair Arsenic Contaminated Soil and Biocontrol Effect on Pomegranate Pests (Primary Fruit Stage)

[0027] The experiment was carried out in a pomegranate garden in a certain place in southwest my country, and the soil arsenic concentration was selected to be between 31.93 and 56.47mg.kg -1 , with an average of 40.81±7.60mg.kg -1 The pomegranate orchard at the initial fruit stage, the soil of the pomegranate orchard is paddy soil, and pomegranates were replanted 20 years ago. Due to the degeneration of pomegranate varieties 3 years ago, a new pomegranate variety, Hongguangyan, was planted. The pomegranate planting distance is 4 meters and the row spacing is 5 meters.

[0028] The plot experiment adopts random block design, with 3 repetitions as 3 blocks, and the planting patterns and planting densities in the blocks are randomly arranged and combined. Each treatment...

Embodiment 2

[0033] Example 2: Pomegranate Interplanting Centipede Grass Restoration of Arsenic Contaminated Soil and Effect of Biological Control on Pomegranate Pests and Diseases (Full Fruit Period)

[0034] The experiment was carried out in a pomegranate garden in a certain place in southwest my country, and the soil arsenic concentration was selected to be 30.26-80.84 mg.kg -1 , with an average of 48.91±13.64mg.kg -1 The pomegranate garden in the full fruit period, the soil of the pomegranate garden is red soil, and it has been planted for 11 years. The pomegranate variety is red and bright.

[0035] The plot experiment adopts random block design, with 3 repetitions as 34 blocks, and the planting patterns and planting densities in the blocks are randomly arranged and combined. Each treatment was repeated 3 times, and there were two planting modes in total. Centipede grass was planted at 3 density levels, with a total of 6 treatments and 18 plots. The two planting modes are interplant...

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Abstract

The invention relates to a biological control method for simultaneously reducing pests and arsenic pollution in a pomegranate orchard, which comprises the following steps: interplanting arsenic-containing centipede grass seedlings at rows of pomegranate trees. The present invention interplants the arsenic super-accumulating plant Centipede Grass in the pomegranate, and suppresses the occurrence of pests in the pomegranate garden through the secondary metabolites of the Centipede grass living body and the element defense effect of arsenic, so that Bactrocera citrus, stinkbug, The number of major pests such as western flower thrips has been significantly reduced, and the arsenic content in the soil has been reduced through the synergistic effect of arsenic-containing centipede grass and pomegranate trees.

Description

technical field [0001] The invention relates to the technical fields of agricultural planting, biological control of diseases and insect pests and the like, in particular to a biological control method for simultaneously reducing pests and arsenic pollution in pomegranate orchards. Background technique [0002] The pursuit of large-scale planting of single crops in modern agriculture and the large-scale application of pesticides and chemical fertilizers have caused the farmland ecosystem to become increasingly simple and fragile, resulting in frequent occurrence of crop diseases and shorter and shorter disease epidemic cycles, resulting in reduced crop production and serious problems such as environmental pollution. . Biological control of plant diseases and insect pests refers to using the relationship between biological species to suppress another or another type of organisms with one or one type of organisms. Its biggest advantage is that it does not pollute the environm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G13/00A01G17/00A01G22/00
CPCA01G13/00A01G17/005A01G22/00
Inventor 雷梅张德刚郭广慧
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS