[{"data":1,"prerenderedAt":25},["ShallowReactive",2],{"news-dd462b5c05ef43299f6daeb3e64381c1":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":16,"pushtype":14,"readnum":17,"sharenum":6,"showorder":18,"showwebsite":14,"source":19,"sourcelink":5,"status":13,"summary":20,"system":5,"thumbnail":21,"thumbnail1":5,"thumbnail2":5,"timer":22,"title":23,"types":24,"updateTime":9},"08b80d56a9174bda87efa07f278efe31","",0,"\u003Cp style=\"text-indent: 2em;\">棉花是一种耐涝性较强的作物。据观察，棉株受淹48-72小时，排水后植株完好；受淹十几天，叶子全部脱落，主根烂掉一半，仅生长点未死，把水排除后及时管理，20天后，棉株可恢复生长；随淹随排，棉花能20多天不死且有收成。可见，受涝棉花只要生长点不死，涝后及时加强田间管理，仍能获得较好收成。综合各地经验，管理遭受涝灾的棉花贵在“五及时”：\u003C/p>\u003Cp style=\"text-indent: 2em;\">\u003Cstrong>1.及时排除积水：\u003C/strong>虽然棉田积水后，植株仍能生长，但淹水时间过长，会严重影响根系活动，容易造成大量叶片和蕾铃脱落，必须在可能的情况下及时排水，尽量减少田间积水时间。\u003C/p>\u003Cp style=\"text-indent: 2em;\">\u003Cstrong>2.及时扶苗、洗苗：\u003C/strong>棉花经过水淹和风吹，根系受到损伤，往往造成棉株倒伏，排水后必须及时扶正、培直，并洗去叶片及枝条上的淤泥，以利进行光合作用，促进植株生长。\u003C/p>\u003Cp style=\"text-indent: 2em;\">\u003Cstrong>3.及时中耕、培土:\u003C/strong>受涝棉田排水后土壤板结，通气不良，水、气、热状况严重失调，必须及早中耕，破除板结，并结合中耕进行培土，以提高植株根际的土壤温度和防止倒伏。\u003C/p>\u003Cp style=\"text-indent: 2em;\">\u003Cstrong>4.及时增施肥料:\u003C/strong>棉田经过水淹，土壤养分大量流失，加上根系吸收能力衰弱，及时追肥对棉株恢复生长和增结秋桃十分有利。在棉株恢复生长前，以叶面喷肥为主；棉株恢复生长后，可在距棉株10-13厘米处，开沟(穴)追施碳铵10-15千克／亩或尿素5-7.5千克/亩。\u003C/p>\u003Cp style=\"text-indent: 2em;\">\u003Cstrong>\u003Cspan style=\"text-indent: 2em;\">5.及时防治病虫害:\u003C/span>\u003C/strong>\u003Cspan style=\"text-indent: 2em;\">受灾棉株恢复生长后，枝叶幼嫩，前期蚜虫多，后期易受棉铃虫、棉小造桥虫等为害。因此，要早治、狠治，做到每叶必保，每蕾（铃）必争，最大限度地提高单株产量。同时，由于受涝棉田田间湿度大，容易引起烂铃，要切实加强防治。另外，遭受涝灾的棉花要适当推迟打顶时间（一般要比正常棉花晚打顶5-10天），遇秋旱及时浇水，后期适时进行人工催熟。\u003C/span>\u003Cspan style=\"text-indent: 2em;\">  \u003C/span>\u003C/p>\u003Cp>\u003Cbr/>\u003C/p>","2016-06-15 10:37:01","2016-06-15 10:39:51","7e2681613fe24e929db7446d08b47287","dd462b5c05ef43299f6daeb3e64381c1","https://api-tx2.hedadata.com/files/news/20160615/1f6b6112aec045fa8c800e783424c6d8.jpg","2","1","0","2016-06-15 10:39:52",688,99,"农民日报","棉花是一种耐涝性较强的作物。据观察，棉株受淹48-72小时，排水后植株完好；受淹十几天，叶子全部脱落，主根烂掉一半，仅生长点未死，把水排除后及时管理，20天后，棉株可恢复生长；随淹随排，棉花能20多天不死且有收成。","\\files\\news\\20160615\\1f6b6112aec045fa8c800e783424c6d8.jpg","2000-01-01 00:00:00","棉花遭遇涝害怎么应对","news",1790158175975]