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農業部發布2017年鮮食玉米生產技術指導意見
2017-04-21
11:21:39
來源：農業部 閱讀量：16838
評論
鮮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，根據品質類型可分為甜玉米、糯玉米、甜糯玉米等。鮮食玉米是高蛋白低脂肪食品，營養豐富、風味獨特，是一種為居民提供營養健康的膳食纖維的果蔬。《全國種植業結構調整規劃(2016-2020年)》提出，促進玉米結構調整，適當發展鮮食玉米，到2020年種植面積達1500萬畝。為進一步挖掘鮮食玉米生產優勢和產量潛力，提升鮮食品質，促進農民增收，助力結構調整，制定2017年鮮食玉米生產技術指導意見如下。
一是因地制宜，適度規模。鮮食玉米直接收獲新鮮果穗，適宜采收期相對較短。為降低大面積種植風險，提高種植效益，要市場定位，選定優勢區域，確定生產規模。堅持市場導向、以銷定產，根據市場預期和加工需求確定種植面積，防止盲目跟風大面積種植。
二是優選品種，隔離種植。根據當地生態條件，選擇生育期適宜、豐產穩產性好、抗病抗逆性強、食用品質優良、適宜當地種植的高產鮮食玉米品種。生產上要進行空間或時間隔離，與其他類型玉米相距300米以上，或錯期播種，播期相隔25天左右，避免串粉，影響鮮食玉米的口感和品質。
三是分期播種，合理密植。因地因時制宜，考慮市場需求，實行分期播種，降低種植風險。可采用露地栽培、地膜覆蓋栽培及溫室大棚設施栽培等方式分期分批播種，實現市場周年供應，提高種植效益。根據生產條件、土壤肥力、品種特性、管理水平等合理確定種植密度，宜稀不宜密，不可盲目增密。一般畝3000-3500株，確保果穗授粉充分、結實良好、籽粒飽滿，提高果穗等級和商品性，
四是科學肥水，綠色防控。施肥以有機肥為主、化肥為輔，施肥應適當前移。關鍵生育期如遇旱應及時灌溉，防止因缺肥水而出現果穗禿尖等問題。采取赤眼蜂、白僵菌防治等生物防治技術及時防治玉米螟，禁止使用化學農藥，提高果穗商品性，確保食品安全。
五是適時采收，綜合利用。一般授粉后20天左右進入采收期。開花授粉后，要注意觀察籽粒灌漿進度，做到適時采收，及時上市銷售或加工處理，切忌在較高溫度下放置時間過長，以免影響產量、品質和商品性。鮮食玉米秸稈含糖量高、營養豐富、適口性好，果穗采收后，秸稈可直接用于青貯飼料，進一步提高全株利用率和生產附加值。
農業部玉米專家指導組
全國農業技術推廣服務中心
(2017年4月19日)
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