摘要
2016~2018年在位于海河平原区的河北省深州市河北省农林科学院旱作农业节水试验站,采用机械播种和人工播种两种方式,探讨了沟播对紫花苜蓿出苗、表层土壤墒情和土壤温度的影响。结果表明,与苜蓿平播技术相比,苜蓿沟播可以显著提高表层土壤含水量和出苗率,对表层土壤温度影响不明显。机械沟播较平播0~10cm表层土壤含水量提高了11.5%,人工沟播较平播0~10cm表层土壤含水量提高了6.9%;沟播与平播相比,0~20cm表层土壤含水量增幅低于0~10cm。机械沟播较平播出苗率提高了16.3%,人工沟播较平播出苗率提高了8.8%。因此,苜蓿种植区域建议采用机械沟播,有助于提高苜蓿出苗率和成活率。
From 2016 to 2018,the effects of furrow sowing on alfalfa seedling emergence,surface soil moisture and soil temperature were studied by mechanical sowing and artificial sowing.The test site is located in the dryland agricultural water saving test station of Hebei Academy of Agricultural and Forestry Sciences,Shenzhou City,Hebei Province,Haihe Plain Area.The results showed that alfalfa furrow sowing technology could significantly improve the surface soil moisture content and seedling emergence rate,but had no significant effect on the surface soil temperature.The surface soil moisture content of mechanical furrow sowing was 11.5%higher than that of flat sowing 0~10 cm,and that of artificial furrow sowing was 6.9%higher than that of flat sowing 0~10 cm.The surface soil moisture content increases of 0~20 cm was lower than that of flat sowing 0~10 cm.The emergence rate of mechanical furrow sowing was 16.3%higher than that of flat sowing alfalfa,and that of artificial furrow sowing was 8.8%higher than that of flat sowing alfalfa.Mechanical trench sowing effect is better than artificial trench sowing.
作者
赵海明
游永亮
李源
武瑞鑫
柴岳平
刘贵波
ZHAO Hai-ming;YOU Yong-liang;LI Yuan;WU Rui-xin;CHAI Yue-ping;LIU Gui-bo(Dryland Farming Institute,Hebei Academy of Agricultural and Forestry Sciences,Hebei Key Laboratory of Crops Drought Resistance,Hengshui 053000,China;Hebei Academy of Agricultural and Forestry Sciences,Shijiazhuang050031,China)
出处
《中国草地学报》
CSCD
北大核心
2019年第6期80-85,共6页
Chinese Journal of Grassland
基金
现代农业产业技术体系建设专项资金(CARS-34)
河北省现代农业产业技术体系草业创新团队建设专项资金(HBCT 2018160201)
河北省现代农业科技创新工程(4-04-02)
农业农村部农牧交错带优质青粗饲料资源开发利用技术集成示范项目(16190051).
关键词
紫花苜蓿
沟播
出苗率
土壤含水量
土壤温度
Alfalfa
Furrow sowing
Seedling emergence rate
Soil moisture content
Soil temperature
