湿润灌溉下晚稻肥料运筹方式研究  

Research on the Fertilizer Management Approach of Late-rice under Moistening Irrigation

作　　者：王学华[1] 陈胤舟 杨泉[1] 戴力[1] 罗小仁 张玉乐[1] 马冉剑 

机构地区：[1]湖南农业大学农学院,长沙410128

出　　处：《作物研究》2016年第4期376-380,392,共6页Crop Research

基　　金：国家科技支撑计划项目(2013BAD07B11)

摘　　要：为探索晚稻节水节肥栽培技术,以‘盛泰优018’为材料,在湿润灌溉和施纯氮150 kg/hm2条件下,设置6种肥料运筹方式,研究施肥对水稻根、叶群体质量和产量形成的影响及相互关系,以筛选出相对最优的施肥技术。结果表明:在本研究条件下,按NPK=1∶0.5∶1、基蘖穗肥=5∶3∶2或NPK=1∶0.6∶1.2、基蘖穗肥=6∶3∶1的施肥技术方案能够较好地调控水稻,构建出较合理的根、叶群体结构,获得较高的经济产量,为本试验中相对较优的晚稻肥料运筹方式。Hybrid rice ‘Shengtaiyou 018 ' was used to investigate the water and fertilizer-saving cultivation technology. Under the condition of moistening irrigation and applied N 150 kg / hm2,through 6 fertilizer management pattern: NPK =1∶ 0. 5∶ 1 or 1∶ 0. 6∶ 1. 2 combined with base fertilizer( B) ∶ tillering fertilizer( T) ∶ earing fertilizer( E) = 4∶ 3∶ 3、5∶ 3∶ 2 or 6∶ 3∶ 1. The influence of different fertilization methods on rice root、leaf group quality and yield formation,and their relationship were researched,and the relatively optimal fertilization technology was screened out. Results showed that: under the condition of this research,the fertilization pattern of NPK = 1∶ 0. 5∶ 1 and B∶ T∶ E = 5∶ 3∶ 2 or NPK = 1∶ 0. 6∶ 1. 2 and B∶ T∶E = 6∶ 3∶ 1,may better regulate and control the rice to grow more reasonable roots and population leaf structure,and gain higher economic yield. It is the relative optimal fertilizing pattern in this experiment.

关 键 词：晚稻 湿润灌溉 肥料运筹 产量 

分 类 号：S511.062[农业科学—作物学]