摘要
以广西主推玉米品种正大619为研究材料,采用裂区设计,2种施肥方式为主处理,6种耕作方式为副处理,比较研究玉米叶绿素含量、叶面积指数和产量的变化规律,为广西玉米生产提供科学依据。结果表明:施肥和耕作方式对叶绿素含量和叶面积指数的影响较小,两者对产量的影响较大。常规3次施肥条件下,深松25 cm+免翻耕处理的产量最高,达到了8273.62 kg/hm2,比对照旋耕25 cm处理增产16.11%。从施肥角度来看,常规3次施肥处理的玉米产量高于1次性施肥处理的产量。从耕作角度来看,深松处理可以显著提高玉米产量。
The main popularized variety Zhengda 619 in Guangxi was used as the research material. Split block design was applied in this experiment. The chlorophyll content, leaf area index and yield of corn were researched under the two fertilization ways and six farming methods. The research provides a scientific basis for maize production in Guangxi. The results showed that the fertilizer and tillage methods had less impact on the chlorophyll content and leaf area index, but had great influ- ence on the production. Under three conventional fertilization conditions, deep tillage 25 cm＋ no-tillage treatment, the yield reached 8273.62 kg/hm^2, and increased by 16.11% than that of the control with rotary cultivation in 25 cm. Viewed from fertilization point, the yield of the three conventional fertilization treatment was higher than that of the single-dose application treatment. From tillage point, deep tillage treatment could significantly improve the corn production.
出处
《农业研究与应用》
2014年第6期17-22,共6页
Agricultural Research and Application
基金
粮食安全关键技术研究与应用示范项目(桂科攻1123001-1J)
广西农业科学院基本科研业务专项(桂农科2014YZ20)
关键词
玉米
叶绿素含量
叶面积指数
产量
Maize
chlorophyll content, leaf area index
yield
