机直播稻“播喷同步”机械化除草技术中的种子处理方法  

Seed Treatment Method of a New Weed Mechanical Control Measure of Synchronous Seeding and Spraying Herbicides by Rice Direct Seeding Machine

作　　者：张建萍 唐伟 于晓玥 杨永杰 陆永良 糜学江 ZHANG Jian-ping;TANG Wei;YU Xiao-yue;YANG Yong-jie;LU Yong-liang;MI Xue-jiang(State Key Laboratory of Rice Biology,China National Rice Research Institute,Hangzhou 310006,China;Tongxiang Shijing Grain and Oil Agricultural Machinery Professional Cooperative,Jiaxing 314503,China)

机构地区：[1]中国水稻研究所水稻生物学国家重点实验室,浙江杭州310006 [2]桐乡石泾粮油农机专业合作社,浙江嘉兴314503

出　　处：《黑龙江农业科学》2020年第1期74-77,共4页Heilongjiang Agricultural Sciences

基　　金：科技部重点研发专项(2016YFD0200801);国家重点研发计划(2017YFD0201305-4);国家水稻产业技术体系(CARS-01);中国农业科学院科技创新工程病虫草害防控技术创新团队

摘　　要：在机直播稻“播喷同步”机械化除草技术生产应用中,水稻种子在播种时与封闭除草剂直接接触,对水稻出苗安全有一定影响。为保证机直播稻田间出苗安全,本研究发现采用只浸种36 h不催芽的种子处理方式,种子发芽率为0,采用不发芽的盲谷播种,同步喷施除草剂后水稻出苗率92.6%以上,但浸种48 h,催芽36 h后水稻出芽率为71.4%,采用芽谷播种,同步喷施除草剂后出苗率将显著降低,仅42.3%。It could potentially have negative impact on rice seed germination and emergence ratio when herbicides were sprayed onto the surface of soil and direct contact on rice seeds with a new weed control measure of synchronous seeding and spraying herbicides by rice direct seeding machine.This study was carried out to ensure no adverse effect on seed germination and emergence after directly spraying herbicide on the rice seeds.The results showed that rice seeds which were soaked for 36 h but not forced of germination would not germinated.After these seeds without germination were sowed and synchronously sprayed herbicides,the seed emergence ratio would be higher and up to 92.6%.Conversely,if seeds were soaked for 48 h and then forced to germination for 36 h,71.4%seeds would be sprouted.After these rice-grain sprout were sowed and synchronously sprayed herbicides,their seed emergence rate would be significantly decreased,only 42.3%.

关 键 词：水稻机械化生产 种子处理 出苗率 杂草防治 

分 类 号：S451.21[农业科学—植物保护]