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1974年宝山公社推广玉米去雄面积达4,000亩,虽然遇到严重的干旱,仍然获得良好效果,估计推广这项技术可增产粮食14万斤。每个玉米雄穗一般可产生1,500～2,000万个花粉粒,这些花粉粒,从形成到成熟需要消耗大量营养物质。如果在抽雄始期花粉粒尚未成熟时,隔株或隔行将田间雄穗去掉一半,既不影响授粉,又能减少营养消耗,使营养集中供给雌穗,
In 1974, Baoshan Commune promoted maize to an area of 4,000 hectares, and despite the severe drought, it still achieved good results. It is estimated that the promotion of this technology will increase grain yield by 140,000 kg. Each maize tassel typically produces between 15 and 20 million pollen grains, which require large amounts of nutrients from formation to maturity. If the pollen grains in the early stage of tasselling are immature, the isolates or interlacing will remove half of the tassels in the field, which will not affect the pollination but also reduce the nutrient consumption so that the nutrition will be concentratedly supplied to the ear,