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Method for interplanting duckweed in rice field to reduce damages to paddy rice caused by ampullaria gigas

A technology of apple snails and paddy fields, applied in rice cultivation, botany equipment and methods, fish farming, etc., to overcome environmental pollution and agricultural product safety production problems, and ensure food safety and environmental safety

Active Publication Date: 2016-01-13
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For apple snails, since duckweed has better palatability than rice seedlings and has a faster reproduction and growth rate, duckweed can be used to lure apple snails to eat in rice fields, thereby reducing the damage of apple snails to rice. Therefore, through This kind of ecological agricultural technical measures can prevent and control the harm of apple snails in situ, thereby reducing or replacing the use of chemical molluscicides, which is conducive to ensuring food safety production, agricultural ecological environment and agricultural biodiversity. It has not been used in the prior art Effective measures to reduce damage to rice by duckweed

Method used

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  • Method for interplanting duckweed in rice field to reduce damages to paddy rice caused by ampullaria gigas
  • Method for interplanting duckweed in rice field to reduce damages to paddy rice caused by ampullaria gigas
  • Method for interplanting duckweed in rice field to reduce damages to paddy rice caused by ampullaria gigas

Examples

Experimental program
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Effect test

Embodiment 1

[0023] The rice variety selected in this example is Huanghuazhan (Yueshendao 2005010), and the duckweed is green duckweed collected from wild rice fields. The test site is located on the outdoor balcony of the Agricultural College of South China Agricultural University, in a plastic box with a size of 77cm×50cm×36cm. The bottom of the plastic box is paddy soil, the soil layer is about 10cm, and the water depth is about 5cm. 4 rice seedlings are used as 1 hole, and 9 hole seedlings are evenly inserted into each box according to the specification of 20cm×15cm. There were 6 boxes in the test, 3 of which were added with 15g of fresh duckweed on the day of transplanting, as the treatment group, and the other 3 as the control group. Put 8 apple snails in each box, 2 shell heights of 15-20mm, 20-25mm, 25-30mm, and 30-35mm respectively. After the above-mentioned number of apple snails were put in, the damage of rice seedlings was counted at the same time every day, and the whole rice...

Embodiment 2

[0027]The rice variety selected in this example is Huanghuazhan (Yueshendao 2005010), and the duckweed is collected from a field paddy field. The test site is located on the outdoor balcony of the Agricultural College of South China Agricultural University. It is carried out in a plastic box with a size of 77cm×50cm×36cm. The bottom of the box is paddy soil, the soil layer is about 10cm, and the water depth is about 5cm. Rice seedlings are 1 hole with 4 plants, and each box is evenly inserted into 9 holes of 30-day-old rice seedlings according to the specification of 20cm×15cm. A total of 12 boxes were used in the test, and 8 apple snails were put into each box after transplanting rice, with shell heights of 15-20mm, 20-25mm, 25-30mm, and 30-35mm, respectively. Taking apple snails as the time node, 15g of fresh duckweed was added to 3 plastic boxes at the same time as apple snails, as treatment group 1; treatment group 2 and treatment group 3 each had 3 boxes, which were added...

Embodiment 3

[0030] The rice variety selected in this example is Meixiangzhan (Yueshendao 2006009). The test site is located on the outdoor balcony of the Agricultural College of South China Agricultural University. It is carried out in a plastic box with a size of 38cm×27cm×13cm. Three gradients are set for soil and water depth, which are set to 0cm, 2cm, and 5cm respectively. 15-day-old and 30-day-old seedlings were selected for the experiment, and 120 15-day-old or 30-day-old seedlings were inserted into plastic boxes in different water layers. After the rice is planted, put 2 active apple snails of the same snail grade in each box. Three snail grades are selected for the apple snails, namely the young snail (shell height 10-15mm), medium snail (shell height 15-20mm), Become a snail (shell height>20mm). The three factors of different water depths, different day-old rice and different snail grades crossed each other, and each treatment was repeated 4 times. After 24 hours, the effects o...

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Abstract

The invention relates to the technical field of ecological control, and particularly discloses a method for interplanting duckweed in a rice field to reduce damages to paddy rice caused by ampullaria gigas. The method comprises putting the duckweed in a rice filed 2 to 5 days before transplantation of paddy rice seedlings. The duckweed is interplanted in the rice field, the duckweed can be used for trapping the ampullaria gigas to forage at original positions, so that damages to the paddy rice seedlings caused by ampullaria gigas can be reduced. Compared with the prior art, no chemical agent for killing the ampullaria gigas is needed when the ampullaria gigas damages the paddy rice by adopting the method, the production of agricultural products and the safety of farmland ecotope can be ensured, and the method can be conveniently operated in the field, actually popularize and apply, distinct ecological benefits and economic benefits can be achieved by adopting the method.

Description

technical field [0001] The invention relates to the technical field of ecological prevention and control, and more specifically relates to a method for interplanting duckweed in paddy fields to reduce the harm of apple snails to rice. Background technique [0002] Apple snail ( Pomaceacanaliculata ) is native to the Amazon River Basin in South America. It is an amphibious freshwater shellfish mollusk in tropical and subtropical regions. It was introduced to Zhongshan City, Guangdong Province as a food economic animal in 1981, and it was quickly promoted to more than 10 provinces across the country in the 1980s. . Under the influence of factors such as market failure and poor taste, the apple snails were abandoned by farmers. Because of their miscellaneous food habits, strong adaptability, and high fecundity, the apple snails have invaded 13 provinces (cities) in my country, and the affected farmland exceeds 30 million mu, Guangdong Province alone has reached 8 million mu. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00A01K61/00A01G16/00A01G13/00A01G22/22
CPCA01G13/00A01G22/22A01G31/00Y02A40/81Y02P60/60
Inventor 章家恩郭靖宋春秀邓智心梁开明张春霞罗明珠
Owner SOUTH CHINA AGRI UNIV
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