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机构地区:[1]山东省滨州职业学院,山东滨州256603 [2]山东省农科院作物研究所,济南250100
出 处:《玉米科学》2008年第5期93-97,共5页Journal of Maize Sciences
基 金:"十一五"国家科技支撑计划"粮食丰产科技工程"项目(2006BAD02A09-JS01)
摘 要:研究了麦田不同时间套种对玉米生态环境及作物生长发育的影响。结果表明:光、热、水资源的竞争是造成玉米苗弱、迟发的主要原因,其中光照不足尤为主要。小麦、玉米共生期,套种时间越早,玉米苗冠层光照强度越强,土壤日平均温度越低,有效积温越高,土壤含水量越低;套种时间越晚,则反之。在套种时间相同条件下,光照强度、土壤日平均温度、有效积温、最高温度、日较差,麦田畦埂均大于套种行;最低温度,则反之。小麦玉米共生期只浇一次水的情况下,麦田在5月21~26日套种浇水,即麦收时玉米在3叶展开期左右为宜,既有利于小麦产量的提高,又有利于玉米生长发育和产量的提高。The wheat field different time interplanting conducts theresearch to the corn ecological environment and the crops growth re main reason of seedling lations. The result indicated that the light, heat, water resources unexpectedly struggle is the weak and late seedling, illumination insufficient especially ismain. The wheat, the corn paragenesis time, the interplanting timemore early, corn seedling canopy illumination strongly goes paststrongly, the interplanting corn good soil warm lowly goes past, effective temperature higher, the soil moisture content is lower, the interplanting time is later, then otherwise. Under the interplanting time same condition, the strength of illumination, the soil daily average temperature, effective temperature the maximum temperature, the date is worse, the wheat ridge fields is bigger than the interplanting line; most low temperature, then otherwise. The wheat field sows seeds the watering from May 21 to May 26, namely when wheat hareest the corn unfolds in 3 times is suitable, both is advantageous to the wheat outputenhancement, and is advantageous to the corn growth and the output enhancement.
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