微纳米气泡增氧灌溉对双季稻需水特性及产量的影响

Effects of Micro-Nano Bubble Aerated Irrigation on Water Requirement Characters and Yield of Double Season Rice

为探究微纳米气泡增氧灌溉技术对水稻节水增产的综合影响,以陆两优996和天优华占为双季早、晚稻试验材料,研究了不同施氮水平下微纳米气泡增氧灌溉对双季稻需水特性、产量及产量构成因素的影响。结果表明,微纳米气泡增氧灌溉处理的灌水量、排水量和耗水量均低于常规水灌溉处理,早、晚稻水分利用效率(耗水量)分别提高7.78%和8.37%,降雨利用效率分别提高6.03%和24.58%,产量分别提高4.05%和3.35%。同时,微纳米气泡增氧灌溉具有良好的节肥效果。

In order to study the comprehensive effect of micro-nano bubble aerated irrigation on water-saving and yield-increase of rice, under the different nitrogen levels, a field experiment was conducted to study the effects of micro-nano bubble aerated in＇igation on water require- ment characteristics, yield and yield composition of the early rice Luliangyou 996 and the late rice Tianyouhuazhan. The results indicated that compared with conventional irrigation, micro-nano bubble aerated irrigation reduced the irrigation amount, water discharge and water con- sumption and increased the water use efficiency by 7.78% for early rice and 8.37% for late rice. The utilization rate of rainfall was enhanced by 6.03% and 24.58%, and the yield was increased by 4.05% and 3.35% for early rice and late rice, respectively. Moreover, the micro- nano bubble aerated irrigation had a well fertilizer-saving.