水稻噴用2,4-D除草試驗
Other Title
Experiments of Weeding Applied 2,4-D in Rice Paddy Field
Journal
農業研究
Journal Volume
11
Journal Issue
4
Start Page
1
End Page
10
Date Issued
1962-12-01
Date
1962-12-01
Author(s)
楊方平
F.P. Young
Abstract
1. 本試驗為探討水稻田噴用2,4-D除草之可能性，及其對水稻生育與產量之影響。全試驗設四種2,4-D噴用時期(第一期作為水稻移植30、44、52、62日，第二期為移植19、26、32、38日)，各噴用時期分設每10公畝噴用2,4-D20、35、50公分(濃度均為千分之一)及手取除草四平準，採用4×4複因子試驗，田間設計用逢機區集法排列，重複四次，小區面積10平方公尺。
1. To know whether 2.4-D is effective when used as the weed killer is the purpose of this experiment. In addition, its effects to rice growth and yield caused by the spraying of 2,4-D were also investigated. The chemicals, in same concentra-tion 1/1,000, were applied individually with the amount of 20, 35 and 50g per 10 ares at four growing stages, ie. 30, 44, 52 and 62 days after transplantation in the first crop and 19, 26, 32 and 38 days in the second crop. The ordinary hand-weeding method was used as the control. 4x4 factorial block design, 4 repeats were employed.
Publisher
農業試驗所
Type
journal article
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