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农业部发布2017年鲜食玉米生产技术指导意见

2017-04-21 11:21:39 来源:农业部 阅读量:16687 评论

导读:鲜食玉米是指在玉米乳熟末期采摘果穗,用于加工或直接食用的玉米,根据品质类型可分为甜玉米、糯玉米、甜糯玉米等。鲜食玉米是高蛋白低脂肪食品,营养丰富、风味独特,是一种为居民提供营养健康的膳食纤维的果蔬。《全国种植业结构调整规划(2016-2020年)》提出,促进玉米结构调整,适当发展鲜食玉米,到2020年种植面积达1500万亩。为进一步挖掘鲜食玉米生产优势和产量潜力,提升鲜食品质,促进农民增收,助力结

  鲜食玉米是指在玉米乳熟末期采摘果穗,用于加工或直接食用的玉米,根据品质类型可分为甜玉米、糯玉米、甜糯玉米等。鲜食玉米是高蛋白低脂肪食品,营养丰富、风味独特,是一种为居民提供营养健康的膳食纤维的果蔬。《全国种植业结构调整规划(2016-2020年)》提出,促进玉米结构调整,适当发展鲜食玉米,到2020年种植面积达1500万亩。为进一步挖掘鲜食玉米生产优势和产量潜力,提升鲜食品质,促进农民增收,助力结构调整,制定2017年鲜食玉米生产技术指导意见如下。
 
  一是因地制宜,适度规模。鲜食玉米直接收获新鲜果穗,适宜采收期相对较短。为降低大面积种植风险,提高种植效益,要市场定位,选定优势区域,确定生产规模。坚持市场导向、以销定产,根据市场预期和加工需求确定种植面积,防止盲目跟风大面积种植。
 
  二是优选品种,隔离种植。根据当地生态条件,选择生育期适宜、丰产稳产性好、抗病抗逆性强、食用品质优良、适宜当地种植的高产鲜食玉米品种。生产上要进行空间或时间隔离,与其他类型玉米相距300米以上,或错期播种,播期相隔25天左右,避免串粉,影响鲜食玉米的口感和品质。
 
  三是分期播种,合理密植。因地因时制宜,考虑市场需求,实行分期播种,降低种植风险。可采用露地栽培、地膜覆盖栽培及温室大棚设施栽培等方式分期分批播种,实现市场周年供应,提高种植效益。根据生产条件、土壤肥力、品种特性、管理水平等合理确定种植密度,宜稀不宜密,不可盲目增密。一般亩3000-3500株,确保果穗授粉充分、结实良好、籽粒饱满,提高果穗等级和商品性,
 
  四是科学肥水,绿色防控。施肥以有机肥为主、化肥为辅,施肥应适当前移。关键生育期如遇旱应及时灌溉,防止因缺肥水而出现果穗秃尖等问题。采取赤眼蜂、白僵菌防治等生物防治技术及时防治玉米螟,禁止使用化学农药,提高果穗商品性,确保食品安全。
 
  五是适时采收,综合利用。一般授粉后20天左右进入采收期。开花授粉后,要注意观察籽粒灌浆进度,做到适时采收,及时上市销售或加工处理,切忌在较高温度下放置时间过长,以免影响产量、品质和商品性。鲜食玉米秸秆含糖量高、营养丰富、适口性好,果穗采收后,秸秆可直接用于青贮饲料,进一步提高全株利用率和生产附加值。
 
  农业部玉米专家指导组
 
  全国农业技术推广服务中心
 
  (2017年4月19日)
 

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