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日，针对豫南连阴雨风险较大区域应进行适期晚获和抢时抢收。","当前（9月16日），我省夏玉米处于灌浆中后期，豫南（南阳区域）大面积乳线处于1\u002F2阶段，豫中（漯河、许昌）大面积乳线处于1\u002F3-1\u002F2阶段，豫北（新乡、鹤壁、焦作）大面积乳线处于1\u002F4阶段。豫南基本处于蜡熟期，但距离生理成熟晚熟期还有10-15天左右时间，豫北处于蜡熟初期，距离晚熟期还有15-20天时间。全省玉米距离完全成熟，粒重达到最大均需一定时间。\n\n同时，不同区域均存在零星收获现象，主要是零散小户，受降雨、施肥不足、密度过大等影响，存在部分区域青枯病和早衰现象（漯河部分区域淹水时间较长田块等），大户种植管理措施到位，目前大部分叶片持绿性较好，后期灌浆时间较长，籽粒充实潜力仍较大。\n\n2026年我省玉米生产过程整体良好，好于去年。2026年春季雨水较为充沛，玉米播种期墒情全省整体较好，保障了玉米一播全苗、苗期苗壮。6月18-7月15日，全省近一个月雨水较少，多数地区出现旱情，主要是南阳和驻马店点地区，7月15日后我省大部分区域呈多点短时强降雨情况，旱情得到较大缓解，8月10-12日，台风“白海豚”影响我省，全省较大范围带来强降雨，特别是漯河、许昌、平顶山、周口地区连续2天降雨量超过300mm，部分区域超过400mm，玉米被淹时间超过3天。9月份以来，我省大部分地区土壤偏旱，大多数田块需要浇灌灌浆水，其中，9月8-9日，受冷空气影响，全省降温10-15℃，短暂降温后温度恢复。\n\n根据省气象局预测，预计今年“三秋”期间我省降水呈北少南多分布，气温整体偏高，天气条件整体有利于玉米后期灌浆成熟和收获晾晒。预计9月中下旬，北部、中西部、南部降水量较常年同期偏多；19日起有我省大部地区连阴雨天气，预计持续至28日。此次持续降雨过程将造成光照不足、田间湿度加大，易产生灌浆受阻、病害加重、成熟籽粒霉变等风险。\n\n因此，2026年玉米生产过程遇到“穗期高温干旱+授粉灌浆期强降雨+后期连阴雨风险”灾害，导致部分区域秃尖、茎基腐，南方锈病部分发生，霉变有可能加重等风险。\n\n9月19日起的本轮降雨，会较大程度环节旱情，更有利于下一茬小麦播种，针对我省不同熟期玉米应分类施策，进行适期晚获和抢时抢收。\n\n一、针对豫南连阴雨风险较大区域，该区域玉米大部分进入蜡熟期，玉米籽粒乳线即将消失、基部黑层出现，即将达到收获标准的田块，连阴雨极易造成穗部发芽和霉变风险。这类田块，应抓住19日降水开始前的窗口期或降雨间歇突击抢收，土壤湿软地块优先调集履带式收割机。密切关注天气变化，抢抓晴好天气及时收获。在机械无法完全进入的区域，可组织人工辅助抢收，最大限度降低损失。确保能收尽收，颗粒归仓。\n\n二、针对豫中豫北未达到蜡熟期地块，大部分玉米还未到蜡熟期（乳线1\u002F2），粒重达到最大粒重的70-80%左右，灌浆还在继续。连续阴雨天气会降低植株光合能力，影响籽粒灌浆。建议雨后及时疏通田间沟渠，排涝降渍。低洼地块备好抽排设备，雨后第一时间排净明水，缩短根系泡水时间；严防根系渍害、烂根早衰，保障玉米正常灌浆。二是强化灾后恢复和营养加强，谨防病害蔓延。茎基腐、穗腐病和南方锈病具有进一步加重风险，利用降雨间歇期可最后一次喷施叶面肥，增强营养补偿，提高群体健康程度。直到9月28日，本轮降雨结束后，乳线消失、黑层出现后适期晚收。\n\n三、收获后果穗与籽粒储存。收获后的玉米果穗和籽粒及时进行烘干和晾晒。若采用机械烘干，根据烘干玉米规模和用途不同，选择分段式烘干和连续式烘干设备。若选择自然晾晒，则需抓住晴朗窗口期，将果穗或籽粒平摊晾晒，摊薄散热、定时翻堆通风，防止堆温升高、受潮霉变、发芽变质。待籽粒含水量降至14%以下才能安全储藏。","河南省农业科学院","2026-09-16T00:00:00Z",78,{"impact":235,"substance":17,"depth":18,"authority":179,"freshness":63,"relevant":21,"comment":236},20,"省级科研机构针对2026年河南夏玉米三重灾害发布的分类应急管理措施，含具体生育期数据与操作建议，专业性和实用性较强，但时效已过一周。",[238],{"name":231,"url":228},[240,241,30,242,243],"防灾减灾","河南省农科院","连阴雨","适期晚收",{"code":32,"slug":33,"name":34,"path":35,"parent_code":36},[246],{"code":39,"slug":40,"name":41,"path":42,"parent_code":43},{"status":45,"locked":14,"version":46,"method":47,"evidence":248},{"candidates":249,"agricultural_evidence":51},[250,254],{"code":32,"score":19,"supported":51,"title":251,"abstract":252,"tags":253},[34],[34],[30],{"code":39,"score":19,"supported":51,"title":255,"abstract":257,"tags":258},[256],"干旱",[256],[240],[260,261],"河南农科院 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应急管理措施","河南农科院夏玉米连阴雨-3115","2026-09-22T00:05:36.506567Z",{"id":265,"title":266,"url":267,"summary":268,"summary_zh":8,"content":269,"source_name":270,"source_url":8,"published_at":11,"category":12,"cover_url":8,"hotness":13,"is_selected":14,"score":271,"score_detail":272,"sources":276,"tags":278,"primary_topic":280,"secondary_topics":281,"classification":282,"search_phrases":299,"slug":301,"view_count":56,"doi":8,"paper":8,"created_at":302},837,"[四川省农科院]第十四届亚洲玉米大会田间考察走进简阳——90个杂交品种、上百份地种与自交系接受\"田间大考\"","https:\u002F\u002Fwww.farmer.com.cn\u002F2026\u002F08\u002F20\u002F991026453.html","丘陵地区玉米何以丰产?亚洲专家走进四川的高温\"考场\"。从1996年四川省农科院与简阳市开启院地合作算起,三代科研人扎根坡地,攒出一套适配丘区的\"组合拳\"。本次大会设置四个田间观摩点:禾丰镇元吉社区品种展示区90个杂交品种、上百份地种与自交系;平武镇高坡村夏玉米示范田展示\"轻简高效\"\"两机一带\"技术(免耕灭茬播种机、移动式水肥药一体机、喷灌带);青龙镇联合村示范田玉米秆下紫苏、花生、大豆长势正旺。现场展示\"蜀花9号\"\"川豆155\"等主推品种对西南5种主要病害达到中抗以上。","平武镇尤安烘干中心给出了另一重答案。总投资2345万元、日烘干峰值600吨、年仓储1.2万吨，产后损耗降低8%，玉米干燥品质提高10%——解决了丘区“雨天晒粮难、粮食霉变损耗”的老大难。\n\n在加工品鉴台上，玉米早已不只是一根棒子。鲜食玉米、玉米薄片、玉米汁、玉米啤酒，还有玉米糊糊等产品一字排开。四川省农科院农产品加工研究所研究员曾晓丹介绍，四川玉米一大半流向饲料领域，但精深加工方向已经十分清晰：跟着消费需求往营养、健康方向走。育种端聚焦花青素、叶黄素、叶酸等营养强化及甜糯同体等特色口感；加工端通过工艺优化和创新，提升口感、营养保持率和吸收率，开发更具市场活力的食品和功能性食品。“健康属性不是只靠终端加工做出来的，源头品种就可以把营养做进籽粒里。”当品种和加工形成合力，玉米的价值链才能真正拉长。简阳本地已建成玉米收储与初加工基地，实现“全收全销”闭环。","中国农网\u002F农民日报 2026年8月20日",72,{"impact":100,"substance":235,"depth":273,"authority":19,"freshness":274,"relevant":21,"comment":275},15,7,"报道了玉米育种与加工结合提升价值链的进展，含具体数据，但属省级科研动态，影响有限。",[277],{"name":270,"url":267},[26,27,28,29,279],"丘区",{"code":32,"slug":33,"name":34,"path":35,"parent_code":36},[],{"status":45,"locked":14,"version":46,"method":47,"evidence":283},{"candidates":284,"agricultural_evidence":51},[285,289,293],{"code":32,"score":114,"supported":51,"title":286,"abstract":287,"tags":288},[34],[34],[],{"code":62,"score":63,"supported":51,"title":290,"abstract":291,"tags":292},[],[66,67],[],{"code":294,"score":71,"supported":51,"title":295,"abstract":296,"tags":298},"G1",[],[297],"院地合作",[],[300,84],"亚洲玉米大会 四川省农科院 玉米抗逆 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2026-08-16","2026-08-16T00:00:00Z",71,{"impact":235,"substance":100,"depth":273,"authority":19,"freshness":63,"relevant":21,"comment":313},"报道亚洲玉米大会田间考察，展示玉米新品系与智慧农业技术，具省级影响与实质内容，但时效性稍逊。",[315],{"name":309,"url":306},[26,28,29,30],{"code":32,"slug":33,"name":34,"path":35,"parent_code":36},[],{"status":45,"locked":14,"version":46,"method":47,"evidence":320},{"candidates":321,"agricultural_evidence":51},[322],{"code":32,"score":19,"supported":51,"title":323,"abstract":324,"tags":325},[34],[34],[30],[327,84],"亚洲玉米大会 四川省农科院 夏玉米 简阳","亚洲玉米大会四川省农科院夏玉米简阳-737","2026-08-19T23:57:29.920389Z",{"id":331,"title":332,"url":333,"summary":334,"summary_zh":335,"content":8,"source_name":336,"source_url":333,"published_at":337,"category":160,"cover_url":8,"hotness":13,"is_selected":14,"score":338,"score_detail":339,"sources":341,"tags":343,"primary_topic":347,"secondary_topics":348,"classification":350,"search_phrases":375,"slug":378,"view_count":21,"doi":379,"paper":380,"created_at":393},4346,"Response of OPV Corn (Zea mays) to Antitranspirants (Chitosan) Under Drought Stress","https:\u002F\u002Fdoi.org\u002F10.64388\u002Firev10i4-1723642","Chitosan is gaining recognition in crop science as a natural antitranspirant that improves plant water-use efficiency and enhances resilience under drought stress. This study investigated the effects of chitosan derived from golden apple snail shells on the growth, physiological response, and yield performance of glutinous open-pollinated variety (OPV) corn (Zea mays) under drought conditions. Conducted from February 23 to April 29, 2025, in Macatoc, Victoria, Oriental Mindoro, the experiment followed a 3×4 factorial design using a Randomized Complete Block Design, with Factor A being water stress intervals (regular, 15 days, and 25 days) and Factor B being chitosan levels (0, 50, 100, and 150 ml\u002FL). Results showed that the first factor (water stress interval) had a significant effect (p\u003C0.05) on key growth traits such as plant height, number of leaves, leaf area, and fresh and dry biomass, with regular watering (A1) producing superior values compared to 15-day (A2) and 25-day (A3) intervals. However, yield components like corn ear diameter, length, and weight showed comparable results between A1 and A2, suggesting moderate water stress did not drastically affect reproductive traits. The second factor (chitosan level) significantly influenced all parameters, with 100 ml\u002FL (B3) producing the best performance in plant height, leaf area, number of leaves, biomass, corn ear traits, Relative Water Content (RWC), and Excised Leaf Water Retention (ELWR). The 150 ml\u002FL treatment (B4) also improved traits but with diminishing gains or slight physiological suppression. The interaction between water stress intervals and chitosan levels was significant for plant height, number of leaves, leaf area, and RWC, especially at 6 and 8 weeks after planting. Notably, the combination of 100 ml\u002FL chitosan and 15-day water stress interval (A2B3) showed performance comparable to the regularly watered treatment, indicating chitosan’s mitigating role under moderate drought. These findings support the application of chitosan at optimal concentrations as an eco-friendly, biodegradable strategy to enhance maize performance under water-limited conditions, reinforcing its value in climate-smart agriculture.","壳聚糖作为一种天然抗蒸腾剂，能够提高植物水分利用效率并增强干旱胁迫下的恢复力，在作物科学领域日益受到关注。本研究探讨了源自金苹果螺壳的壳聚糖对干旱条件下糯性开放授粉品种（OPV）玉米（Zea mays）生长、生理响应及产量表现的影响。试验于2025年2月23日至4月29日在东民都洛省维多利亚市马卡托克进行，采用3×4析因设计，以随机完全区组设计（RCBD）为基础，因素A为水分胁迫间隔（常规浇水、15天、25天），因素B为壳聚糖浓度（0、50、100和150 ml\u002FL）。结果表明，第一因素（水分胁迫间隔）对株高、叶片数、叶面积及鲜重和干重生物量等关键生长性状具有显著影响（p\u003C0.05），常规浇水（A1）的各项指标优于15天（A2）和25天（A3）间隔处理。然而，玉米穗直径、长度和重量等产量构成因素在A1和A2之间表现相当，表明适度水分胁迫未对生殖性状产生剧烈影响。第二因素（壳聚糖浓度）对所有参数均有显著影响，其中100 ml\u002FL（B3）在株高、叶面积、叶片数、生物量、玉米穗性状、相对含水量（RWC）和离体叶片保水能力（ELWR）方面表现最佳。150 ml\u002FL处理（B4）虽也改善了各性状，但增益递减或出现轻微生理抑制。水分胁迫间隔与壳聚糖浓度之间的交互作用对株高、叶片数、叶面积和RWC具有显著影响，尤其在种植后第6周和第8周。值得注意的是，100 ml\u002FL壳聚糖与15天水分胁迫间隔的组合（A2B3）表现与常规浇水处理相当，表明壳聚糖在适度干旱条件下具有缓解作用。这些发现支持将壳聚糖以最优浓度施用作为一种生态友好、可生物降解的策略，以提升玉米在水分受限条件下的表现，进一步印证了其在气候智慧型农业中的价值。","Iconic Research and Engineering Journals","2026-10-06T00:00:00Z",54,{"impact":56,"substance":100,"depth":101,"authority":63,"freshness":56,"relevant":21,"comment":340},"小规模田间试验，结论有一定参考价值但影响范围有限，属细分领域研究进展。",[342],{"name":336,"url":333},[168,34,344,345,346],"抗旱栽培","壳聚糖","水分利用效率",{"code":32,"slug":33,"name":34,"path":35,"parent_code":36},[349],{"code":39,"slug":40,"name":41,"path":42,"parent_code":43},{"status":45,"locked":14,"version":46,"method":47,"evidence":351},{"candidates":352,"agricultural_evidence":51},[353,358,362,369],{"code":32,"score":100,"supported":51,"title":354,"abstract":356,"tags":357},[355],"corn",[34,33,355],[34],{"code":39,"score":101,"supported":51,"title":359,"abstract":360,"tags":361},[181],[256,181],[],{"code":363,"score":63,"supported":51,"title":364,"abstract":365,"tags":368},"B2",[],[366,367],"苹果","apple",[],{"code":189,"score":370,"supported":51,"title":371,"abstract":372,"tags":374},4,[],[373],"smart agriculture",[168],[376,377],"壳聚糖 玉米 干旱胁迫","OPV玉米 抗旱 壳聚糖","壳聚糖玉米干旱胁迫-4346","10.64388\u002Firev10i4-1723642",{"doi":379,"openalex_id":381,"authors":382,"venue":336,"cited_by_count":221,"oa_url":385,"card":386,"direction":392,"ingested_from":223},"W7220744122",[383],{"name":384,"orcid":8},"Sharlene D. Andaya","https:\u002F\u002Fwww.irejournals.com\u002Fformatedpaper\u002F1723642.pdf",{"tldr":387,"method":388,"finding":389,"direction":390,"opportunity":391},"研究壳聚糖抗蒸腾剂对干旱胁迫下糯玉米生长、生理和产量的影响。","3×4析因试验，水分间隔与壳聚糖浓度，测定生长、生理及产量指标。","100 ml\u002FL壳聚糖配合15天水分间隔可媲美常规灌溉，缓解中度干旱。","农业绿色发展与碳","可探究壳聚糖与其它生物刺激素复配及在不同作物和田间规模下的节水增产机制。","智慧农业 \u002F 农业物联网","2026-10-07T23:30:10.272335Z"]