水花生也有其弱點。它喜光,不耐陰;植zhi株zhu匍pu匐fu生sheng長chang。而er串chuan葉ye鬆song香xiang草cao直zhi立li生sheng長chang,植zhi株zhu高gao大da,莖jing葉ye生sheng長chang繁fan茂mao。生sheng產chan上shang可ke以yi通tong過guo促cu進jin串chuan葉ye鬆song香xiang生sheng長chang來lai抑yi製zhi田tian間jian水shui花hua生sheng的de發fa生sheng。田tian間jian有you缺que株zhu的de地di方fang,應ying及ji時shi移yi苗miao補bu缺que(可以分蔸移苗),不給水花生生長的空間。
及時用藥防除田埂邊的水花生,防止蔓延到牧草地危害。可以在水花生旺盛生長期,用10%草甘膦乳油50倍液(10%草甘膦乳油1000毫升加水50公斤),或農達200beiyedingxiangpenwu,jiangzacaopenshipentou。zuihaozaichuanyesongxiangcaoshougedangtianpenyao,penyaohoulijijiangchuanyesongxiangcaogediao,burangcaoganlinchuandaodaochuanyesongxiangcaoxiabujike。duitianneiquexuechudeshuihuashengyekeyicaiyongzhezhongfangfapenyaofangzhi。duitianjianshaoliangdeshuihuasheng,haikeyicaiyongcaoganlinyaoyemojingyedefangfajiayifangchu。yongyaochulihoubuyaojiyujiangshuihuashenggechu,rangyaowuneixichuandaodaoshuihuashenggenjingbu,zheyangcainengjiangshuihuashengliangenshamie。caoganlinduirenchudepifu、眼睛和上呼吸道有刺激作用,但無經口中毒報道。噴過草甘膦的串葉鬆香草可以在清洗或者曬幹後用來喂牲畜。
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