摘要
为探寻缓控释肥在玉米生产上的合理施肥模式,进行了玉米缓控释肥不同施用模式比较试验,为指导当地农民施用缓控释肥提供科学依据。研究结果表明:缓控释肥作基肥1次性施肥(A1)和缓控释肥作基肥+苗肥(A2)的两个处理玉米株高、茎粗与常规施肥处理相近,穗位高较高,其穗长、穗粗、秃尖长、穗粒数优于常规施肥(ck)、缓控释肥作基肥+攻秆肥(A3)和缓控释肥作基肥+攻苞肥(A4),空杆率受施肥模式影响不明显;4种模式均比ck玉米产量减产,A1玉米产量减产1.83%,玉米经济效益增加1791.3元/ha,而A2、A3、A4玉米减产幅度为8.05%-39.01%,减益为1180.2-3790.5元/ha。因此,在本试验研究条件下缓控释肥作基肥一次性施入为较合理的施肥模式。
To explore the slow-release fertilizer on maize production rational fertilization mode,slow-release fertilizer has been maize comparison test different mode of administration, as a guide to local farmers to pro- vide the scientific basis for application of slow-release two processing plant height, stem diameter similar to fertilizer. The results show that： （A1） and （A2） of the conventional fertilization, ear height is higher, its ear length, ear diameter, bald length, grain number superior to conventional fertilization （CK）, （A3） and （A4）, empty bar that fertilization rate mode is not obvious; 4 modes than CK maize production, A1 corn crop cut 1.83%, increase economic efficiency corn 1791.3 yuan/ha, and A2, A3, A4 corn production rate was 8.05% -39.01% reduction benefits of 1180.2-3790.5 yuan/ha. Therefore, under the present experimental study conditions slow-release fertilizer was applied as basal-time to a more rational fertilization systems.
出处
《广西农学报》
2016年第2期21-23,共3页
Journal of Guangxi Agriculture
关键词
玉米
缓控释肥
施肥模式
产量
效益
Corn
slow-release fertilizer
fertilization mode
yield
Benefit
