黄河三角洲地区不同水稻机械化育秧技术研究

Study on Different Mechanical Seedling Technology of Rice in the Yellow River Delta

为了探究适于黄河三角洲地区机械插秧的露天育秧技术,以金粳818为试验材料,采用田间梯度灌水试验方式,研究了3种育秧方式对秧苗素质的影响。结果表明,在黄河三角洲滨海盐碱地典型沙壤土质条件下,不同育秧方式对秧苗素质影响有极显著差异,主要表现在秧苗的株高、根长、活根数、地上百株干鲜重及根系盘结能力上;秧盘上有水处理组,水浸泡秧苗根部处理组的秧苗盘结最佳,并且秧苗素质显著尤于其他2个处理组。因此,水稻机插露天育秧应选择水在秧盘上的压盐碱方式,且换水频率为7 d水压盐碱,36 h搁田。

In order to discuss the suitable rice open-air seedling techniques of mechanization in the Yellow River Delta,this paper researched 3 kinds of seeding raising methods effect on seedling quality though the material of Jin Jing 818 and the field gradient irrigation experiment.The result showed that there was significant difference in seedling quality under the condition of seedling raising in the typical sandy soil of the Yellow River Delta.Seedling height,root length,root number,ground dry weight and root knot ability were the significant difference.The group of water soaking seedling root was the best treatment,and especially better than others 2 treatments on seedling quality.Therefore,Open rice seedling method should choose the pressure saline of water in the tray,and the frequency of the water pressure of saline for 7 days 36 hours put test field.