摘要
2002年5月～10月在河南省惠北试验站进行大田试验,以土水势为灌水下限控制指标,研究了不同水分胁迫条件下的中稻生物效应和水分生产率。结果表明:水分胁迫通过对不同生长阶段根、茎、叶等器官生长发育的影响和降低有效分蘖数而最终影响水稻产量。与传统灌溉相比,以土水势-30kPa为灌水下限控制指标,对产量无显著影响,且可以大大节约灌水量,提高水分生产率,是该地区中稻较为适宜的灌水制度。
In order to investigate the effects of different water regimes on the growth and development, yield, as well as water productivity of rice, the experiment was carried out in the plots at Huibei irrigation experiment station, Kaifeng, Henan province, during June to October in 2002. The results follow that: water stress reduced rice yield by affecting the growth and development of root, stem, and leaf et al in different growth periods and by decreasing the effective tillers. Contrast to the traditional irrigation regime, irrigating when the soil water potential is below -30 kPa had no significant effect on yield, however would greatly save irrigation water and improve water productivity. It would be the optimal rice irrigation regime rice in this area.
出处
《灌溉排水学报》
CSCD
北大核心
2004年第5期14-16,49,共4页
Journal of Irrigation and Drainage
基金
"863"计划项目部分研究内容(2002AA2Z4331)
