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在双膜或软盘育秧机插栽培中,“超秧龄”的现象常有发生。“超龄秧”秧苗栽入大田后,秧苗成活率低下,返青慢,分蘖迟缓,严重影响机插稻的大田产量。连云港市农机监理所根据前两年的生产调查和部分试验结果进行技术初探研究,旨在研究秧床氮肥运筹与秧苗素质变化的关系及其机理,探求最佳肥料运筹和延长秧苗适栽期(增加秧龄弹性)秧床施肥技术。
In double-membrane or floppy disk transplanting cultivation, “super seedling age” phenomenon often occurs. “Over-age seedlings” seedlings planted in the field, the seedling survival rate is low, turn green slowly, tillering slowly, seriously affecting the machine inserted rice field output. Lianyungang Agricultural Machinery Supervision Institute based on the first two years of production surveys and part of the pilot results of the technology research aimed at research seedling nitrogen fertilizer and seedling quality changes in the relationship between the mechanism and explore the best fertilizer operation and to extend the planting of suitable seedlings ( Increase seedling elasticity) Seedling bed fertilization technology.