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在夏玉米生产过程中,要想获得玉米高产,除了科学运用水肥、适时间苗定苗、及时防治病虫害外,下面几项措施也不失为提高玉米产量的有效途径。1种子选择1.1选择耐密紧凑型的优良玉米杂交种目前,玉米产量进一步提高的关键在于解决穗数、粒数、千粒重的三大矛盾,而且,生产试验表明,公顷粒数和千粒重是影响玉米产量的重要因素。紧凑型玉米品种虽然果穗较小、穗
In the summer corn production process, in order to obtain high yield of corn, in addition to the scientific use of water and fertilizer, timely seedling Miao, timely prevention and control of pests and diseases, the following few measures can also be an effective way to increase corn yield. 1 Seed Selection 1.1 Choosing Fine Hybrids with Fine Compactness At present, the key to further increase the yield of corn is to solve the three contradictions of spikes, grain numbers and 1000-grain weight. Moreover, the production tests show that the number of hectares and grain weight are the major factors that affect corn An important factor in production. Although compact corn varieties smaller ear, spike