怎样种植青饲玉米?

2025-04-06 14:32:20
推荐回答(1个)
回答1:

青饲玉米栽培的基本要求是最大限度地生产多量的绿色植物体,这些绿色植株应具备柔嫩多汁,粗纤维含量少,营养丰富,适于青贮或青饲料的条件。
(1)选用良种,调节播期选用生物产量高,植株成熟后茎叶青绿,营养丰富的杂交种,如是牧场,亦可选用多蘖多穗型的饲用品种,一般每公顷青秸秆产量可达75吨以上。根据青贮饲料营养要求,可以进行早、中、晚熟品种的分期播种,春播、夏播或秋播,以在霜冻前青贮玉米能长到蜡熟期较适宜。(2)加大密度、增加肥水饲用玉米的种植密度,一般比食用玉米增加50%左右,如果食用和饲用兼顾,则密度与食用玉米大体一致。(3)利用间作、混作和套作可与豆类、瓜类、甜菜和马铃薯等间作、混作或套作。在肥水条件及其他栽培措施较好时,茎叶和子粒的产量均不低于单作。(4)适时收获青贮玉米的适宜收获期通常在乳熟末期。如果果穗食用只青贮玉米茎叶时,以蜡熟末期收获最好,饲用价值降低。

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