Analysis of Diffusion of Nematicides in Subsoil and Development of Double Injection Type Soil Fumigator.

杀线虫剂在底土中的扩散分析及双喷射式土壤熏蒸机的研制。

• 批准号: 06660317
• 负责人: MITARAI Masafumi
• 金额: $ 1.34万
• 依托单位: MIYAZAKI UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06660317/
• 关键词: Soil Fumigator; Nematodes; DD; Chloropicrin; クロールピクリン

The purpose of this study is to develop the double injection type soil fumigator (injection depth are 15 cm and 35 cm) and to determine the concentration pattern of nematicides in the subsoil and the efficacy of developed fumigator. The main results and conclusions obtained concretely in this study are as follows.(1) The nematodes in the soil of green house and upland field lived until the depth of 50cm and it was thought that the subsoil fumigation was necessary.(2) The decrease percentage of nematodes using the developed fumigator was 98-100% at 7 days after fumigating and the double injection method of different fumigants (DD and Chloropicrin) was effective.(3) From after 30 days, the density of nematodes increased 33-77% (the depth of 0-25cm) and 30-90% ((the depth of 25-50cm) and it was necessary to investigate the fumigation method for controlling the eggs of nematodes.

本研究的目的是研制双注式土壤熏蒸器(注射深度分别为15 cm和35 cm)，并测定杀线虫剂在底土中的浓度规律和所研制的熏蒸器的药效。具体研究结果和结论如下：(1)温室和旱地土壤中的线虫存活到50 cm以下，认为有必要进行深层熏蒸。(2)所研制的熏蒸器熏蒸后7天，线虫减少率达98-100%，采用不同熏蒸剂(DD和氯苦)二次注射的方法是有效的。(3)从30天以后，线虫密度增加33-77%(深度0-25 cm)和30-90%(深度25-50 cm)，有必要研究控制线虫卵的熏蒸方法。

项目成果

御手洗,正文: "二段注入式深層用土壌消毒機による線虫防除効果について" 農業機械学会講演要旨. 53. 111-112 (1944)

御手井正明：《论两级注射深层土壤消毒机的线虫防治效果》农业机械学会讲座摘要53. 111-112（1944）。

Masafumi, Mitarai: "Development of the Double Injection Type Soil Fumigator." Proceeding of J.J.S.A.M.Volume 53. 11-112 (1994)

Masafumi, Mitarai：“双喷射式土壤熏蒸器的开发”。

御手洗 正文: "二段注入式深層用土壌消毒機による線虫防除効果について" 農業機械学会講演要旨. 53. 111-112 (1944)

Masafumi Mitarai：“论两级喷射式深层土壤消毒机的线虫防治效果”农业机械学会讲座摘要53. 111-112（1944）。