摘要
探究旱平垄作耕作模式对水稻抗折力的影响,为旱平垄作方式在水稻抗倒伏方面提供理论依据与技术支持。采用单因素随机区组试验,齐穗期后20 d在每小区长势均匀区域挑选9穴植株的主茎测量抗折力。试验结果表明:茎厚表现为垄作速缓结合>垄作缓释肥>垄作减肥>平作;垄作缓释肥处理的重心高较平作处理明显降低;旱平垄作处理的抗折力平均较常规平作处理提升18.53%。垄作可降低植株的重心高,从而降低植株倒伏的风险。垄作缓释肥对植株抗折力的提升最优。
The effects of the drought-flat ridge tillage pattern on the resistance of rice to lodging were investigated to provide theoretical basis and technical support for the drought-flat ridge tillage pattern in the resistance to lodging of rice.The single-factor randomization group experiment was used to select the main stem of 9 point plants in the uniform growth area of each community to measure the bending force 20 days after full panicle stage.The results showed that the stem thickness was characterized by the slow combination of ridge planting with>ridge planting with>ridge planting with slow-release fertilizer.The barycenter of gravity was lower in ridge tillage than that in flat tillage.On average,the folding resistance of dry flat ridge cropping was 18.53%higher than that of conventional flat cropping.Ridge planting reduces the height of the plant's center of gravity,thereby reducing the risk of plant collapse.The improvement of folding resistance of plants was optimized by ridge planting with slow-release fertilizer.
作者
康楷
刘丽华
郑桂萍
杨志新
邹运
KANG Kai;LIU Li-hua;ZHENG Gui-ping;YANG Zhi-xin;ZOU Yun(Agricultural College,Heilongjiang Bayi Agricultural University,Daqing Heilongjiang 163319,China)
出处
《北方水稻》
CAS
2020年第3期7-11,共5页
North Rice
基金
国家重点研发计划项目(2018YFD0300104)
黑龙江省自然科学基金委员会(C2018048)
黑龙江八一农垦大学科研团队平台支持计划(TDJH201802)。
关键词
水稻
抗折力
垄作
Rice
Folding resistance
Ridge tillage
