低丘陵红壤土直播油菜硼肥施用技术研究  

Study on Boron Fertilizer Application Technology of Direct Seeding Rape inLow-hill Red Soil

作　　者：孙华 李翠 倪杨帆 尹志强 白玲 SUN Hua;LI Cui;NI Yangfan;YIN Zhiqiang;BAI Ling(Wuhan Agricultural Testing Center,Wuhan Hubei 430012;Daye Planting Industry Service Center,Daye Hubei 435100;School of Biological Engineering,Sichuan University of Science and Engineering,Zigong Sichuan 643000)

机构地区：[1]武汉农业检测中心,湖北武汉430012 [2]大冶市种植业服务中心,湖北大冶435100 [3]四川轻化工大学生物工程学院,四川自贡643000

出　　处：《现代农业科技》2022年第3期1-3,6,共4页Modern Agricultural Science and Technology

基　　金：2015年大冶市测土配方施肥项目;2016年大冶市测土配方施肥项目。

摘　　要：为了解低丘陵红壤土油菜直播模式硼肥合理施用量,设置了0、4.5、7.5、10.5 kg/hm^(2)等4个施硼量处理,开展了连续2季大田试验,研究不同施硼量对油菜农艺性状和产量构成因子的影响。结果表明,施用硼肥后油菜农艺性状和产量构成因子均较不施硼有所提高,第1季油菜产量随硼肥施用量的增加先升高后趋于平缓,第2季油菜产量随硼肥施用量的增加先增加后降低,硼肥施用量为7.5 kg/hm^(2)时产量和净收入增加最高。根据本试验结果,低丘陵红壤土直播油菜推荐施肥量为硼肥7.5 kg/hm^(2)、纯N 150 kg/hm^(2)、P_(2)O_(5)75 kg/hm^(2)、K_(2)O 120 kg/hm^(2)。In order to understand the reasonable boron fertilization rates of direct seeding rape in low-hill red soil,field tests for two consecutive seasons were carried out by setting four boron fertilization rate treatments of 0,4.5,7.5,10.5 kg/hm^(2),and the effects of different boron fertilization rates on agronomic characteristics and yield composition factors of rape were studied.The results showed that compared with the non-boron fertilization treatment,agronomic characteristics and yield composition factors of rape were improved after applying boron fertilizer.With the increase of boron fertilization rate,the rape production increased first and then flattened in the first season.With the increase of boron fertilization rate,the rape production increased first and then decreased in the second season.The yield and profit increase was the highest when the boron fertilization rate was 7.5 kg/hm^(2).According to this test results,the recommended fertilization rate for direct seeding rape in low-hill red soil is boron of 7.5 kg/hm^(2),N of 150 kg/hm^(2),P_(2)O_(5) of 75 kg/hm^(2),K_(2)O of 120 kg/hm^(2).

关 键 词：油菜 硼肥 农艺性状 产量构成因子 

分 类 号：S565.4[农业科学—作物学] S147.5