玉米新品种郧单20需肥规律研究  

Fertilizer Requirement Pattern of New Maize Varieties Yundan 20

作　　者：周刚[1,2] 吴承国[1,2] 李永学[1] 唐余成 李萌[1] 陈光勇[1] 王致云 王巍[1] ZHOU Gang WU Cheng-guo LI Yong-xue et al(Shiyan Academy of Agricultural Sciences, Shiyan, Hubei 442000 Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou, Hubei 434025)

机构地区：[1]十堰市农业科学院,湖北十堰442000 [2]主要粮食作物产业化湖北省协同创新中心(长江大学),湖北荆州434025

出　　处：《安徽农业科学》2017年第15期154-156,共3页Journal of Anhui Agricultural Sciences

基　　金：湖北省教育厅科技项目(2014.5.13);主要粮食作物产业化湖北省协同创新中心(长江大学)

摘　　要：[目的]探讨玉米新品种郧单20的需肥规律,制定郧单20的高产栽培体系。[方法]以高产玉米新品种郧单20为材料,采用底肥和追肥双因素完全随机区组设计,研究了底肥和追肥不同处理对郧单20农艺性状和产量的影响。[结果]该品种不追肥的产量较追肥低;追肥量在450~600 kg/hm^2时,虽然产量较高,但倒伏也较严重,且与追肥量300 kg/hm^2的产量差异不显著;该品种在底肥750 kg/hm^2、追肥300 kg/hm^2的施肥水平下,产量为11 425.50 kg/hm^2,其抗病性、抗逆性、植株农艺性状较优。[结论]郧单20较为适宜的施肥量为底肥750 kg/hm^2、追肥300 kg/hm^2。[ Objective] The aim was to explore the fertilizer requirement pattern of new maize varieties Yundan 20 and formulate high yield culture system of Yundan 20. [Method] We used the high-yielding maize varieties Yundan 20 as experiment object, designed a double factors completely randomized block test, studied the effect of different base fertilizer and different top application treatment on the agronomic traits and yield of Yundan 20. [ Result ] The yield of no fertilizer treatment was the lowest ;the yield of the treatment with 450 - 600 kg/hm2 top application was higher, while, the lodging-resistance capability was weak;there was no significant difference between the treatment with 450 - 600 kg/hm2 top application and 300 kg/hm2 top application;the treatment with 750 kg/hm2 base fertilizer and 300 kg/hm2 top application was the most appropriate fertilizer rate, and its yield was 11 425.50 kg/hm2 , furthermore, its disease resistance, lodging resistance and plant agronomic traits were better than others. [ Conclusion] The suitable fertilizer rate is 750 kg/hm2 base fertilizer and 300 kg/hm2 top application.

关 键 词：玉米 底肥 追肥 农艺性状 产量 

分 类 号：S513[农业科学—作物学]