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《Heilongjiang Agricultural Sciences》 2017-10
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Effects of Conservation Ridging Combined with Precision Seeding on Yield and Water Use Efficiency of Maize in Semi Arid Area

XU Ying-ying;LIU Yu-tao;WANG Yu-xian;YANG Hui-ying;GAO Pan;WU Lin-lin;CHI Li;Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences;  
In order to increase maize yield,save water and reduce cost,Xianyu335 was taken as material,through the contrast test of conservation sowing,precision seeding,conservation with precision sowing and conventional sowing,the indexes of soil temperature,moisture content,maize growth,yield and water use efficiency were measured.The results showed that conservation sowing combined with precision seeding treatement could increase soil moisture content,soil temperature increased by 0.2~1.2 ℃,and germination rate increased by 6.2% compared with conventional sowing.Maize yield and water use efficiency showed conservation with precision seedingprecision sowingconservation sowing conventional sowing,compared with the conventional sowing,the yield increased by 14.1%,11.7% and 5.0%,and the water use efficiency increased by 16.6%,12.2% and 6.2% respectively.The effect of increasing temperature and water holding capacity of conservation sowing was obvious.Combined with precision sowing technology(conservation with precision sowing),the yield and water use efficiency of maize were improved.
【Fund】: 齐齐哈尔市科技局农业攻关资助项目(NYGG-201625、NYGG-201509、NYGG-201409);; 黑龙江省农业科学院院级科研资助项目(2017SJ034);; 国家现代农业技术体系建设资助项目(CARS-02)
【CateGory Index】: S513
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