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〈中部〉無人機噴藥奏效 南彰葉稻熱病退燒 – 我是在地人

〈中部〉無人機噴藥奏效 南彰葉稻熱病退燒

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#彰化 #市 #自由時報


2019-04-29

〔記者顏宏駿/彰化報導〕今年一期稻作罹患嚴重的稻熱病,本月初,總統蔡英文和農委會到中南部稻米產區視察,近來罹病的稻子都已搶救回來,為何有如此神效?彰化農民直指關鍵在於「無人機」。

病況原近十年罕見 稻農憂去了了

南彰化地區多個鄉鎮一期稻作出現葉稻熱病,病況近十年罕見,農民無不憂慮萬分,但與往年相較,今年這波疫情「來得快,去得快」,關鍵因素竟是「無人機噴藥」普及。無人機噴藥今年開始大流行,這波葉稻熱病更大展身手。埤頭鄉農民李福松說,他的稻田幾乎全數罹患稻熱病而「火燒尾」,深覺這一期「去了了」,只好死馬當活馬醫,花了一千二百元請人來噴二分半的稻田,噴完後不到一個月已治癒,真是「奇蹟」。

負責噴藥的速創公司專員陳芊霓說,這兩年無人機噴藥進入市場,價格與平面人工噴藥差不多,但效果更顯著,逐漸作出口碑。她說,無人機噴藥的顆粒較細,噴的時候,機具下方因螺旋帶來下壓力,把稻葉整個「吹翻」,下壓力又造成藥劑更易附著葉面,效果更明顯。一部無人機市價五十萬元,一次裝載十公升的藥量,可噴四分半的農地。

噴藥下壓氣旋 藥劑附著葉片增藥效

台中農改場副研究員廖君達表示,無人機噴藥也算是農業創新科技,省工省時,因噴藥會產生氣旋,有「下壓」效果,讓藥劑牢牢附著於葉片,進而提昇藥效。

但他也提醒農民,無人機的噴藥藥效通常較強,因此噴藥時勿立於下風處。其次,在蔬果或稻子收成前,不建議使用強效的空中噴藥,因為藥效強,容易被檢出殘留。

無人機噴藥大流行,一期稻作葉稻熱病迅速治癒。(速創公司提供)

報導來源:自由時報【原文網址

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