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应用优良品种和增加种植密度是获得玉米高产的两个重要措施。进一步发挥品种和栽培技术的增产优势,才能增强玉米生产的可持续发展力。在玉米高产创建示范点开展玉米新品种和密度试验,为进一步大面积推广筛选优良品种和适宜密度提供科学依据。参试品种中表现最好的为陕单609和陕单618,适宜在陕西省渭南市白水县增加密度到5000株/667m~2进一步推广种植。先玉335产量表现较好,但密度增加后产量有所下降。
Applying fine varieties and increasing planting density are two important measures to obtain high yield of corn. In order to further exert the advantage of increasing yield of cultivars and cultivation techniques, can the sustainable development of corn production be enhanced. In the corn high yield to create demonstration sites to carry out new varieties of corn and density test, to provide scientific basis for further large-scale screening and selection of good varieties and appropriate density. The best performing cultivars were Shaandan 609 and Shandan 618, which were suitable for further planting in Baishui County, Weinan City, Shaanxi Province, with the density increasing to 5000 plants / 667m 2. First jade 335 production performed better, but the density increased after the decline in production.