文中讨论了双季稻区稻水象甲生活史对策的适应意义。

The ecological implication of this life history strategy of rice water weevil was discussed.

以江南双季稻生长评估模型为工具，模拟了常德地区1961 - 2000年早稻的生长状况。

Based on simulated model of JiangNan Double Crop rice, growth and development status of early rice effected only by climate condition in ChangDe Area from1961to2000were simulated respectively.

协优9308在孕穗期和抽穗期比常规品种更易遭受低温冷害，不适宜作为双季稻的晚稻种植。

The variety Xieyou 9308 was easy to be injured by low temperature than conventional varieties and not suitable to be sowed as late rice.

研究双季稻田不同施肥量处理的氮磷降雨径流损失规律，对于指导双季稻合理施肥、保护水环境具有重要的现实意义。

It was significant to study the nitrogen and phosphorus losses from surface runoff in double cropping rice filed for guiding the rational fertilizer and protecting water environment.

用吸虫器采样法，对双季稻区中处于多样化生境及单一生境中的两类稻田中的节肢动物群落结构特征进行了比较研究。

The community structure of arthropods both in heterogenous and in monotogenous habitat in two-crop paddy field area was studied with the suction sampler.