Chemical Weed Control in Transplanted Winter Rice in Saudi Arabia

Abstract

Four granular and two liquid herbicides were tested in transplanted winter rice in the Al-Hassa Oasis. Among granular herbicides, benthiocarb-M and butachior gave better control of weeds with no sustained injury to rice while nitrofen and MO-401 did not perform effectively under local conditions. Both liquid herbicides, propanil and benthiocarb, also provided adequate control of weeds but caused more crop damage than the granular herbicides. More economical control of weeds in transplanted winter rice in Saudi Arabia appears likely with the use of herbicides. 本文係報告四種粒劑及兩種乳劑除草劑在Al-Hassa綠洲冬季移植稻田之治草試驗結果。在粒劑除草劑中，掃丹－M與馬上除兩種之藥效較佳，又無明顯藥害，惟多谷與益歐粒劑之表現則欠理想。思登與掃丹乳劑之治草效果亦佳，惟其藥害亦較嚴重。初步結果顯示沙烏地阿拉伯冬季移植稻田之經濟使用除草劑似屬可能。