不同栽培条件下紧凑型玉米增产机理的研究  

STUDIES ON INCREASING PRODUCTION OF COMPACT TYPE MAIZE IN DIFFERENT CULTIVATIONS

作　　者：丁希武[1] 吕正文[1] 高玉凤 韩万双[1] 

机构地区：[1]黑龙江八一农垦大学植物科技学院作物系,伊春市带岭区农业办公室,黑龙江省食品工业学校,红兴隆管局友谊农场

出　　处：《黑龙江八一农垦大学学报》1997年第4期13-18,共6页journal of heilongjiang bayi agricultural university

摘　　要：１９９４～１９９５年在沈阳农业大学校内试验地研究了紧凑型和平展型两个类型玉米品种的生长发育规律。不同密度、肥力条件下，叶面积指数和光能利用率呈显著正相关，干物质积累前期不同密度差异较大，后期干物质积累有相互接近的趋势。紧凑型玉米增产原因是光合势大、光能利用率高、穗数每公顷增加９３３５穗、穗粒数增加１７４８％、但百粒重减少１１４０％。The principle of growth and development of compact and spreading type maize were studied in Shenyang Agricultural University from 1994 to 1995 Under different planting densities and fertilizer levels,there was significant positive correlation between the LAI and the efficiency of light energy utilization In different planting densities , the dry matter accumulation in the maize canopy were large at the early stages and gradually decreased in the later growth stagesThe reason of compact type maize increasing yield were that:1 large LAD and high efficiency of light energy utilization2 the increasing of 9335 ears per hectare and 1748% of the kernel number per ear but decreasing 1140% of 100-kernel weight

关 键 词：玉米 产量 光能利用率 干物质积累 紧凑型 栽培 

分 类 号：S513.04[农业科学—作物学]