加氧灌溉对超级稻“深优9516”生长及产量因素的影响研究

摘要

In the growing process of rice, roots need aerobic respiration. Oxygenation irrigation means oxygenation in accordance with the demand of crops for oxygen for their growth. This experiment designed three treatments: mechanical oxygenation, chemical oxygenation and conventional irrigation. The mechanical oxygenation group A was divided into 6 smal treatment groups and the chemical oxygenation group B was divided into 3 smal treatment groups. Each treatment group had 3 replications and the average was used for analysis. Some agronomic traits of the roots and the plants of super rice were examined. The result showed that the two oxygenation treatments significantly promoted the growth of the roots and the plants. In the me-chanical oxygenation group A4, the number of fil ed grain per panicle was 37.6%higher than that of the conventional treatment group, and the kilo-grain weight was 7.4% higher than that of the conventional treatment group. The study results provide a theoretical basis for the application of oxygenation irrigation to super rice.%试验以隆平种业的超级稻为材料，研究了不同方式的加氧灌溉条件下对超级稻产量的相关因素进行分析。采用 SPSS统计软件对不同加氧处理超稻稻的实粒数、有效穗数、每穗粒数、千粒重进行分析比较，得出加氧处理均能有效提高超级稻的实粒数、每穗粒数、千粒重，其中白天机械加氧处理对超级稻有效穗数显著高于不加氧处理组。加氧灌溉要比不加氧灌溉处理对超级稻每蔸稻穗数的平均水平高2.13%。各加氧处理组植株地上部分的干物质积累量均高于对照不加氧组，加氧处理促进了水稻根上部分根茎叶的生长，谷粒结实。