[{"data":1,"prerenderedAt":24},["ShallowReactive",2],{"news-f935ac4fc5c64cfa80bc6d4269f5de7a":3},{"author":4,"classification":5,"collectionnum":6,"content":7,"createTime":8,"effectivetime":9,"extra":5,"grantor":10,"granttime":9,"homepageimages":5,"id":11,"images":12,"images1":5,"images2":5,"isimmediate":13,"ispush":14,"isread":15,"link":5,"note":5,"orgId":5,"pushtime":9,"pushtype":14,"readnum":16,"sharenum":6,"showorder":17,"showwebsite":14,"source":18,"sourcelink":5,"status":13,"summary":19,"system":5,"thumbnail":20,"thumbnail1":5,"thumbnail2":5,"timer":21,"title":22,"types":23,"updateTime":9},"08b80d56a9174bda87efa07f278efe31","",0,"\u003Cp style=\"text-indent: 2em;\">所谓败育，就是棉花失去了正常生育的功能，即只开花不结桃，或者开花多，结桃少。原因首先是气候因子所致，其次是盲目乱引棉花品种，再者是栽培手段与气候变化不相适应。\u003C/p>\u003Cp style=\"text-indent: 2em;\">从栽培技术来讲，部分迟熟的棉花品种和迟茬的棉花，正当开花高峰期遇上了高温干旱；部分棉田密度过大，荫蔽严重，通透环境不良；部分棉田偏施了氮肥，造成营养生长过旺，也不利于座桃。\u003C/p>\u003Cp style=\"text-indent: 2em;\">\u003Cspan style=\"color: rgb(255, 0, 0);\">\u003Cstrong>挽救棉花败育可采取以下措施：\u003C/strong>\u003C/span>\u003C/p>\u003Cp style=\"text-indent: 2em;\">首先，把握好棉花二次座桃高峰的机遇。正常年份7月下旬至8月上旬是第一次座桃高峰期，当气温降至25～30℃时，则会出现二次座桃高峰。因此，伏桃的损失秋桃可以补偿，秋桃的成桃率要比伏桃高15个百分点左右。\u003C/p>\u003Cp style=\"text-indent: 2em;\">其次，区别苗情加强管理。对脱肥的棉田追施尿素，每亩5～10公斤；对一般棉田根外喷施1%的尿素和0.2%～0.3%的磷酸二氢钾溶液；对密度大、荫蔽重的棉田彻底整枝、打除老叶；对长势偏旺的棉田根外喷施缩节胺或助壮素，每亩3～5克或12～20毫升，对水50公斤；防治好后期病虫害。\u003C/p>\u003Cp style=\"text-indent: 2em;\">第三，选准适宜本地区种植的棉花品种；适时育苗，抢早移栽；合理密植；改善棉田水系设施；科学运筹肥水。\u003C/p>\u003Cp>\u003Cbr/>\u003C/p>","2016-06-15 10:21:08","2016-06-15 10:40:04","7e2681613fe24e929db7446d08b47287","f935ac4fc5c64cfa80bc6d4269f5de7a","https://api-tx2.hedadata.com/files/news/20160615/d4e8d6937c8f4a4b8589a91490855e28.jpg","2","1","0",784,99,"农民日报","所谓败育，就是棉花失去了正常生育的功能，即只开花不结桃，或者开花多，结桃少。原因首先是气候因子所致，其次是盲目乱引棉花品种，再者是栽培手段与气候变化不相适应。","\\files\\news\\20160615\\d4e8d6937c8f4a4b8589a91490855e28.jpg","2000-01-01 00:00:00","棉花败育挽救措施","news",1790158174920]