豇豆的青枯病内容摘要:
2、是时晴时雨的天气易诱发本病。 病菌有生理分化。 品种间抗病性差异尚缺调查。 一些一般表现较强抗病性的豇豆品种是否也抗青枯病,有待于各地进一步调查鉴定。 防治方法(1)在常发病地区注意寻找抗病良种。 (2)重病田勿连作,最好水旱轮作,至少也要引水浸田一段时间(20 天以上)再整地种植。 (3)适当增施石灰,调整土壤酸碱度。 (4)常发病地区提倡药土营养杯育苗并带杯移植(20%喹菌酮可湿粉:肥土1:500 配成药土),或穴播时用药土护种(苗)。 (5)出苗后至初花期,淋喷药液预防控病。 可试用青枯颉颃菌 京农大培育)淋苗,或用农用链霉素或新植霉素(以上均按说明书使用),或 77%可杀得500800 倍液,或 50%代森胺 1000 倍液,或 25%络氨铜水剂 500 倍液,连淋23 次或更多,隔 710 天 1 次,淋足喷透(02505 千克株)。 (6)管好水,切勿深灌或大水漫灌。 专利查询。豇豆的青枯病
相关推荐
. ____________(not ,water) the flowers now. ! the girls ________________(dance )in the classroom . is our granddaughter doing? She _________(listen ) to music. 9. It39。 s 5 o39。 clock now. We
5__ it is difficult for students to find where the classrooms are, ”he said. “During the break, students can be seen here and there, running and shouting to find their __26__.”2 1 c n j y “I39。 m
m is our school going to play against? A: (29)________ B: Really? I think our team is very strong. Perhaps we will win the match. A: But I hear that their team is strong, too. B: I39。 m sure it must
2、005000 公斤、过磷酸钙 2030 公斤、草木灰 50 公斤,肥土充分混合后整平土地。 高畦栽培,畦宽 ,每畦播 2行,穴距 2530 厘米,每穴播种 34 粒,每亩用种量 2 公斤左右。 田间管理出苗后每穴留苗 23 株,并浇齐苗水。 移栽的在结住小荚前控制浇水量,中耕蹲苗。 茎蔓长 30 厘米时选晴天午后引蔓上架。 春季注意防治潜叶蝇,用 福丁乳油 3000 倍液喷雾,每隔 7 天喷
biology very (21)________. My report cards always said things like“Must study harder”or“John shouldn39。 t choose science(22)________”. It was really terrible for(23)________ who had always dreamed of