铺膜垫底旱作对水稻株高及分蘖的影响

研究铺膜垫底后水稻株高与分蘖动态的变化规律,可为该项技术的完善以及相关研究的开展提供理论依据。2007年在华南农业大学农学院教学实验农场,以杂交稻(培杂泰丰)和常规稻(桂香占)为试验材料,研究了常规水作(CK)、常规旱作、铺膜垫底旱作3个处理条件下水稻株高和分蘖的变化。结果表明:铺膜垫底旱作能缓解常规旱作引起的水稻株高的降低程度,并能提高2个水稻品种的有效分蘖比例。与常规水作处理相比,铺膜垫底旱作对水稻株高及分蘖的影响差异均不显著。

Effects of Aerobic Cultivation under Plastic Film Under-laid on the Plant Height and Tillering of Rice

The change rule of rice height and tillering was researched under plastic film under-laid in order to provide theoretical basis for the improvement of the technology and related studies. Using hybrid rice (Peizataifeng) and conventional rice (Guixiangzhan) as the experiment materials,the change rule of rice height and tillering was researched under 3 treatment conditions, water cultivation (CK), dry cultivation, dry cultivation under plastic film under-laid in the teaching experimental farm of South China Agricultural University in 2007. The results showed that the dry cultivation under plastic film under-laid treatment could relieve the reduction degree of rice height caused by dry cultivation,it could also improve the effective tiller percentage of two cultivars. The effects of plastic film under-laid on rice height and tiller were not significant compared with the conventional water treatment.