分蘖期不同土壤水分处理对旱稻生长发育及产量的影响  

Effects of Different Soil Moisture Treatments on Growth and Yield of Upland Rice During Tillering Period

作　　者：胡继芳[1] 刘传增[1] 马波[1] 谭可菲[1] 赵富阳[1] 柴丽丽[1] 王俊河[1] 徐莹莹[1] HU Ji-fang;LIU Chuan-zeng;MA Bo;TAN Ke-fei;ZHAO Fu-yang;CHAI Li-li;WANG Jun-he;XU Ying-ying(Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences,Qiqihar 161006,China)

机构地区：[1]黑龙江省农业科学院齐齐哈尔分院

出　　处：《黑龙江农业科学》2020年第1期44-48,共5页Heilongjiang Agricultural Sciences

基　　金：黑龙江省农业科学院院级科研项目(2018KYJL014);黑龙江省农业科学院齐齐哈尔分院资助项目(2017SJ035);国家重点研发计划资助项目(2018YFD0300104-4);黑龙江省水稻现代农业产业技术协同创新推广体系;齐齐哈尔市科学技术局农业攻关资助项目(NYGG-201620,NYGG-201625)

摘　　要：为探讨旱稻在分蘖期的最适土壤含水量,以旱稻74和旱稻80为试验材料,通过盆栽方式,人为控制土壤水分,研究了分蘖期不同土壤水分对旱稻生长发育及产量的影响。结果表明:土壤水分控制<T6(土壤相对含水量90%~100%)时,会对旱稻的株高和干物质积累造成影响;土壤水分控制<T5(土壤相对含水量80%~90%)时,会对旱稻的生育期和茎蘖数产生影响;土壤水分控制<T6(土壤相对含水量90%~100%)时,旱稻的产量明显降低,且与其他处理达到显著差异。由此可以看出,土壤水分控制不小于T6(土壤相对含水量90%~100%)才能保证植株正常生长,否则将明显影响旱稻最终产量。In order to investigate optimal soil moisture content during tillering period of upland rice,using Handao74 and Handao80 as experimental materials,to study the effects of different soil moisture treatments on growth and yield of upland rice during tillering period through potted experiment and artificially controlled water.The results showed that:When the soil moisture control Less than treatment 6(soil relative water content 90%-100%).It could affect plant height and dry matter accumulation of upland rice;When the soil moisture control Less than treatment 5(soil relative water content 80%-90%).It could affect the growth period and tiller number of upland rice.The soil moisture control Less than treatment 6(soil relative water content 90%-100%),the yield of Upland Rice decreased obviously,and the difference compared to other treatments was significant.In order to ensure normal plant growth,soil moisture control must be more than treatment 6(soil relative water content 90%-100%),otherwise it will obviously affect the final yield of upland rice.

关 键 词：分蘖期 旱稻 土壤水分 产量 

分 类 号：S511.31[农业科学—作物学]