【摘要】 为研究生物有机肥在冷浸田中的应用效果,以杂交稻金优268为材料进行田间肥效试验,考察其对冷浸田土壤养分和水稻生长的影响。结果表明:与纯施化肥相比,冷浸田中配施20%生物有机肥(以N计),能够提升土壤养分,使土壤活性有机质增加11.9%;同时,可改善土壤菌群结构,使好气性细菌和放线菌的数量分别增加35%和8.6%;对水稻的生长发育也有一定的促进作用,表现为增加了水稻的有效分蘖数和叶绿素含量,提高了有效穗数和实粒数,使产量增加6.6%;总体应用效果较好。更多还原

【Abstract】 In order to study the application effect of biological organic fertilizer in cold-waterlogged paddy, a field trail with the hybrid rice Jinyou 268 as the material was conducted to investigate its impact on soil nutrients of cold waterlogged paddy and rice growth. The results showed that compared with chemical fertilizers only, chemical fertilizers applied with 20% of biological organic fertilizer could enrich soil nutrients and raise active organic matter in soil by 11.9%. Meanwhile, microbial population structure was ameliorated, and the number of aerobic bacteria and actinomyces increased by 35% and 8.6%, respectively. It could also promote rice growth, which was indicated by the facts that the effective tiller number, chlorophyll content, effective panicle number as well as filled grain number increased, and the rice yield increased by 6.6%. The application was of good effects in general.更多还原