寒地高纬度区水稻水氮耦合效应试验研究  

Experimental study on the coupling effect of water and nitrogen in rice at the high latitudes in cold regions

作　　者：王柏 黄彦 孙艳玲 于艳梅 WANG Bai;HUANG Yan;SUN Yanling;YU Yanmei(Heilongjiang Province Hydraulic Research Institute, Harbin 150080, China)

机构地区：[1]黑龙江省水利科学研究院,黑龙江哈尔滨150080

出　　处：《水利科学与寒区工程》2020年第4期47-51,共5页Hydro Science And Cold Zone Engineering

基　　金：国家十三五重点研发项目(2016YFC0400101-4);黑龙江省博士后科研启动金(LBH-Q18139);黑龙江省财政厅项目(ky201703);国家科技重大专项和重点研发项目(课题)省级资助(GX17B010)。

摘　　要：黑龙江省寒地高纬度区水稻节水控制灌溉技术尚不完善、季节性干旱频发、田间水肥利用效率低的问题,本文通过野外田间小区试验,研究黑龙江省北部黑河地区节水控制灌溉施肥耦合效应,结果表明:基肥尿素施用低水平时,返青期和分蘖期施肥量增加可以提高水稻产量;基肥尿素施用中等水平时,返青期可以不施或少施氮肥、分蘖期施中等水平氮肥可以提高水稻产量;基肥尿素施用高水平时,返青期施中等水平氮肥、分蘖期可不施氮肥,返青期施低水平氮肥、分蘖期可施中等水平氮肥。The water-saving controlled irrigation technology of rice at the high latitudes of cold regions in Heilongjiang Province is not perfect,there are problems with frequent seasonal drought and low utilization efficiency for field water and fertilizer.This paper studies the coupling effect between water-saving controlled irrigation and fertilization in the Heihe region of northern Heilongjiang Province by field trials.The results show that:when the urea of basal fertilizer is manured at the low level,the rice yields can be improved by increasing the amount of fertilization during the stage of returning green and tillering;when the urea of basal fertilizer is manured at the medium level,the rice yields can be improved by manuring no or less nitrogenous fertilizer during the stage of returning green and medium-level nitrogenous fertilizer during the stage of tillering;when the urea of basal fertilizer is manured at the high level,the rice yields can be improved by manuring medium-level nitrogenous fertilizer during the stage of returning green and no nitrogenous fertilizer during the stage of tillering,or low-level nitrogenous fertilizer during the stage of returning green and medium-level nitrogenous fertilizer during the stage of tillering.

关 键 词：寒地 高纬度 节水控制灌溉 水氮耦合 

分 类 号：S511[农业科学—作物学]