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连续探索亩产500公斤籽棉的超高产攻关栽培，历经九年初获成效。由郑县科委郊县棉办、郊县农业局联合验收测定的岱山农技站l．8亩“徐抗86”超高产示范田，创亩产籽棉4F）7．4公斤新记录，初圆500公斤籽棉梦。现就其攻关示范田的基本构素及其攻关技术作如下简述：l亩产500公斤籽
Continuous exploration of 500 kg of seed cotton per mu ultra-high yield key cultivation, after nine years early effect. County Bureau of Cotton County by the County Council, Suburban County Bureau of Agriculture jointly measured Daishan Agricultural Technology Station l. 8 mu “Xu anti-86 ” super-high yield demonstration field, a mu seed cotton 4F) 7.4 kg new record, the first round of 500 kg seed cotton dream. Now on the basic elements of its research demonstration field and its key technologies are as follows: l 500 kg of seed per mu