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随着杂交玉米紧凑耐密良种的普及,打破了常规种植密度,亩穗数大幅度增加,有效地改善了群体结构。但密度的增加,生产上高产与倒伏这一对矛盾日益突出。近几年来开发应用实践表明,玉米化控栽培能有效解决这一问题,是保持玉米高产稳产的有效措施。三年平均增产16.4％。其技术要点是:(一)适当增加种植密度。使用化控栽培技术,能降低玉米株高30厘米,
With the popularization of compact and dense hybrid corn, the conventional planting density was broken, the number of ears per mu increased greatly, and the population structure was effectively improved. However, with the increase of density, the contradiction between high yield and lodging in production has become increasingly prominent. In recent years, development and application of practice shows that corn chemical cultivation can effectively solve this problem is to maintain high and stable yield corn effective measures. Three years an average increase of 16.4%. The technical points are: (a) appropriate to increase the planting density. The use of chemical control cultivation techniques, corn plants can reduce the height of 30 cm,