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玉米是我省的主要粮食作物之一,在人民生活和粮食增产中占有重要地位。目前农村产业结构面临着重大变革,要发展畜牧业和加工业,发展商品生产,玉米更有其特殊的意义。它可以为畜牧业提供大量的优质饲料,为农副产品加工业提供价廉而质优的原料。因此,发展玉米生产,继续提高单位面积产量为时代所需,势在必行。种植优良玉米杂交种是大幅度提高单产、改良品质的一项经济而有效的战略措施。玉米杂交种,无论是单交种还是双交种,都有强大的杂种优势,产量一般比普通品种高出20～30％。在玉米增产诸因素中,玉米
Corn is one of the main grain crops in our province and occupies an important position in the people’s livelihood and grain yield increase. At present, the industrial structure of rural areas is undergoing major changes. To develop animal husbandry and processing industry and develop commodity production, corn has its own special significance. It can provide a large number of high quality feedstuffs for livestock husbandry and provide cheap and high quality raw materials for the processing of agricultural and sideline products. Therefore, it is imperative to develop corn production and continue to increase the output per unit area required by the times. Planting good maize hybrids is an economical and effective strategic measure to significantly improve yields and improve quality. Corn hybrids, whether single or double cross hybrids, have strong heterosis, yield is generally higher than the average 20 to 30%. In the corn yield factors, corn