大豆銹病藥劑防治試驗
Other Title
Soybean Spraying Experiment for Rust Disease Control
Journal
農業研究
Journal Volume
10
Journal Issue
1
Start Page
35
End Page
40
Date Issued
1961-03-05
Date
1961-03-05
Author(s)
洪章訓
劉康鑑
C.H. Hung
K.C. Liu
Abstract
本省大豆栽培事業年來由於農藝學者之研院及有關當局之倡導故栽培面積日趨廣大，為配合此項工作著者等曾於四十八年從事大豆病害調查，經獲悉若干病害甚為普遍流行，其中影響產量最大者，首推銹病，復據調查終果，目前在本省各地推廣之品種均遭感染，故於四十八年開始分別在花蓮屏東等地進行藥劑防治試驗，本試驗目的在於檢討供試藥劑之防病效果，適當撒藥時期及防治處理與大豆產量之影響。本試驗承蒙農復會惠予資助，使此項工作得能順利完成。本文先就花蓮區試驗結果作分析討論，試驗期中荷蒙花蓮區農業改良場許兩順先生鼎力協助，於此謹詰 謝忱。
Soybean rust caused by Phakopsora Pachyrhizi SYDOW is one of the destructive disease found throughout the growing areas. A spraying experiment for the disease control was conducted at Hwa Lien Experiment Station from 1959 to 1960 including three crops of soybean i.e. fall, spring and summer.
The purpose of the experiment is to determine the possible control with fungicides and their effectiveness as well as the timing of spray.
The fungicides used for this experiment were Ditliane M-22, Dithane Z-78, Dithane
Z-78 plus Wettable sulfur, 0-3818-B and Bordeaux, mixture which were applied at 7 days interval. A total of 5 applications of each testing fungicides were taken during the growing period. The first application varied differently wih the number of days after plantihg; they werethe 28th, 35th, 42th, and 49th respectively . Evidences indi - cated that the disease was well checked by either one of the fungidide which has been tested. The profitable time of the first spraying to control rust disease depended upon different crop of soybean. For protection of the spring crop, the first spraying should be initiated at the 35th day, but it is advisable to initiate the spraying program at the 49th day for both summer and fall crops. Yields of the crop were prominently increased except the fall crop which was insigniflcant because the weather was the limitting factor upon yields.
Among the testing fungicides, Dithane M-22 showed best effect to control rust disease while Dithane Z-78, Dithane Z-78 plus Wettable sulfur, Bordeaux mixture came next in order. 0-3818-B a new fungicide produced by Rohm & Haas Co., at the rate of 200 grams per 100 liters has its advantage of rust control, but it produced chemical injuries to the leaves after application. The phytotoxicity tended more serious as the rate of the chemical increased. For the best control soybean rust, it is suggested to apply either Dithane M-22 or Dithane Z-78 at the rate of 300 grams per 100 liters of water.
Publisher
農業試驗所
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
journal_arc_10-1-5.pdf
Size
1.72 MB
Format
Adobe PDF
Checksum
(MD5):3429e6e4769993372e0c87e0b2678d2b