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Intercropping planting method with functions of aphid control and soil heavy metal control

A planting method and heavy metal technology are applied in the fields of soil pollution remediation, aphid prevention, and crop planting, which can solve problems such as soil heavy metal pollution and inability to combine aphid control, and achieve high economic and ecological benefits.

Active Publication Date: 2020-07-10
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

[0004] The purpose of the present invention is to provide an intercropping planting method with the functions of both aphid control and soil heavy metal control, so as to solve the problem that the prior art cannot combine soil heavy metal pollution restoration and aphid control.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The intercropping of winter wheat and overwintering pasture, such as ryegrass, should be implemented in autumn and October of the first year. In the first year, the sowing row spacing is 20cm. Winter wheat and overwintering pasture are planted in three rows respectively. One row is sown on the ground with a row spacing of 60 cm; the subsequent crop of summer corn or summer soybean is sown on the ground in one row after winter wheat is harvested, with a row spacing of 60 cm. In actual implementation, the row spacing and number of rows of winter wheat and ryegrass can also be adjusted according to variety characteristics, output overdue, mechanical operations, etc. In winter and spring, ladybugs and aphids with a preference for ryegrass were cultivated indoors, and then they were released on ryegrass in the second spring when the temperature rose enough to ensure survival in the field. Cultivating aphids with a preference for ryegrass mainly provides enough food for ladyb...

Embodiment 2

[0026] As in Example 1, at first in the first year, the intercropping of overwintering pastures such as winter wheat and ryegrass is implemented.

[0027] Then, ladybugs and aphids with a preference for ryegrass were cultivated indoors, and they were released on the ryegrass in spring when the temperature rose enough to ensure survival in the field.

[0028] When the number of winter wheat aphids reaches the control target, the ryegrass is mowed to force the ladybugs to move to the winter wheat to feed on the wheat aphids.

[0029] The lead-copper-zinc-enriched plant--chrysanthemum chrysanthemum is sown on the land after the ryegrass is cut. Similarly, chrysanthemum chrysanthemum is suitable for spring sowing in the Huanghuaihai area.

[0030] After the winter wheat turns yellow, some ladybugs migrate to the chrysanthemum, and the velvet acts as an ecological island.

[0031] After winter wheat is harvested, summer corn is sown to form summer corn intercropping.

[0032] Chr...

Embodiment 3

[0036] In the first year, intercropping of winter wheat and alfalfa is implemented, in which alfalfa is sown in autumn in August (it can be interplanted in the previous summer corn), and winter wheat is sown in early October. The planting density ratio can be determined according to control expectations and mechanical operation requirements.

[0037] Cultivate ladybugs and aphids with a preference for alfalfa indoors, and release them on alfalfa in spring when the temperature rises enough to ensure survival in the field. Likewise, the alfalfa-preferring aphids are also early in order to provide enough food for the ladybugs.

[0038] When the number of winter wheat aphids (wheat aphids) reaches the control target (usually in mid-to-late April), the alfalfa is cut to force the ladybugs to move to the winter wheat to feed on the wheat aphids to achieve biological control of the wheat aphids.

[0039] Ladybugs migrate to alfalfa after winter wheat yellows.

[0040] After winter w...

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PUM

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Abstract

An intercropping planting method with both aphid control and soil heavy-metal control functions, including the following steps: in a first year, winter wheat and wintering herbage are intercropped, wherein the wintering herbage is a heavy-metal enriched plant or a heavy metal super-enriched plant; in early spring of a second year, larvae of ladybugs loving to eat aphids and aphids loving to eat the herbage are cultivated indoors; when the temperature rises to a degree capable of ensuring the survival of the ladybugs and the aphids, the ladybugs and the aphids are released to the herbage; then,wheat aphids loving eat wheat in a field are increased through natural breeding and the ladybugs eat the wheat aphids, when the number of the wheat aphids reaches a control index, the herbage is cutoff, thus the ladybugs are driven to completely transported to the winter wheat for eating the wheat aphids, and the heavy metal enriched plants are interplanted in the field where the herbage is cutoff; after the winter wheat is mature and aged, the ladybugs migrate to the heavy metal enriched plant; and after the winter wheat is harvested, summer corn or summer soybean is planted. The method can realize aphid biological control, heavy metal control, production of winter wheat, summer corn and the like, and intercropping production of economic crops.

Description

technical field [0001] The invention relates to the technical fields of crop planting, aphid prevention, soil pollution restoration and the like, in particular to an intercropping planting method which has the functions of aphid prevention and soil heavy metal pollution restoration. Background technique [0002] At present, there is a large area of ​​heavy metal polluted land in the world. In addition, in order to increase the fertility of farmland, there are many farmlands that bring more heavy metals such as copper, zinc, arsenic, and cadmium into the field during the return of livestock and poultry manure, which will cause heavy metal pollution in farmland. How to economically and efficiently remediate heavy metal-contaminated land has been studied in the industry. The intercropping of heavy metal (super) enrichment plants (which can be referred to as enrichment plants) among crops can realize restoration while producing, which is an ideal restoration mode. [0003] Sec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/20A01G22/00A01G22/40
CPCA01G22/00A01G22/20A01G22/40
Inventor 赵风华廖晓勇
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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