玉米双杂交种是利用杂交优势来提高玉米产量的一个办法。一般可增产20%以上。几年来,省农业科学院与全国各地通过协作试验,引入不少玉米双杂交种,并在全省各地进行试验示范,生长表现非常突出,群众评价有十大特点:杆儿低、棒子大、省地劲、长的旺、宜密植、没空杆、熟的早、不 Corn two-hybrid is the use of hybrid advantages to increase corn yield a way. Generally increase production of more than 20%. Over the past few years, the Provincial Academy of Agricultural Sciences and throughout the country through collaborative experiments, the introduction of many corn two hybrids, and in all parts of the province to carry out experiments and demonstrations, the growth performance is very prominent, there are ten characteristics of the masses evaluation: To Jin, long Wang, should be close planting, no time bar, cooked early, no