吉林省半干旱区玉米一次性机械化施肥研究

摘要

Under the soil and climate conditions in semi-arid area of Jilin Province, the growth and development, yield and its components of maize under one-off fertilization and traditional fertilization were compared and analyzed in this study. The results showed that, under the same field management, the two fertilization methods had no effect on the time when maize plants grew into each growth stage;the one-off fertilization was slightly better than the traditional fertilization in dry weight of each part of the plant, ear traits and yield; and the values of the two methods of fertilization varied from each other and were unstable. In production, the one-off fertilization saves the top dressing process, simplifies the operation process and reduces the production input, which is of great significance to the development of modern agriculture.%在吉林省半干旱区的土壤和气候条件下,对比分析了一次性施肥和传统施肥方式下玉米的生长发育和产量及其构成因素.结果表明,相同田间管理水平下两种施肥方式对玉米植株到达各生育期的时间没有影响;一次性施肥在植株各部位干重、果穗性状以及产量上比传统施肥略好,两种施肥方式各重复间的数值互有高低,且表现不稳定.在生产上一次性施肥省掉了追肥环节,简化了作业流程,降低了生产投入,对现代化大农业的发展具有重要意义.