我国燕麦耗水量及其影响因子研究  

Water Consumption and Its Influence Factors of Oats in China

作　　者：孙洪仁[1] 王显国[1] 李茂娜 白春利 杜雪燕 李林霞 SUN Hong-ren;WANG Xian-guo;LI Mao-na;BAI Chun-li;DU Xue-yan;LI Lin-xia(College of Grassland Science and Technology,China Agricultural University,Beijing 100193;Institute of Grassland Research,Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031;Qinghai Province Forage Technology Extension Station,Xining 810016)

机构地区：[1]中国农业大学草业科学与技术学院,北京100193 [2]内蒙古自治区农牧业科学院草原研究所,呼和浩特010031 [3]青海省饲草料技术推广站,西宁810016

出　　处：《中国奶牛》2023年第5期60-66,共7页China Dairy Cattle

基　　金：国家现代牧草产业技术体系建设(CARS-34)。

摘　　要：本文系统总结了我国燕麦(Avena spp.)耗水量及其影响因子研究结果。燕麦耗水量的影响因子包括降水量、降雨季节分配、地形、播种期、灌溉、施肥、混播、耕作方式和茬口;在一定范围内,雨养燕麦耗水量与降水量直线正相关,灌溉燕麦耗水量与灌溉量直线正相关;我国燕麦耗水量范围为79~597mm。籽实燕麦棵间蒸发耗水占全部蒸腾蒸发耗水比例之动态曲线呈单谷型,谷值位于抽穗-灌浆阶段,为23%~30%;播种-拔节阶段燕麦棵间蒸发耗水比例最高,为44%~50%;燕麦全生产期平均棵间蒸发耗水比例为34%~38%。Water consumption and its influence factors of oats(Avena spp.)in China were systematically summarized in this paper.The influence factors of water consumption of oats included precipitation,season distribution of rainfall,terrain,seeding time,irrigation,fertilization,mixed planting,farming methods and fore crop.Within a certain range,water consumption of rain-fed oats were linear positive correlation with precipitation,water consumption of irrigation oats were linear positive correlation with irrigation amount.The extent of water consumption of oats in China were from 79 to 597 mm,respectively.The dynamic curve of proportion of evaporation to evapotranspiration for oats was a single valley type,and the valley value was in the heading-grain filling stage,from 23%to 30%.The highest proportion was in the sowing-elongating stage of oat,from 44%to 50%.The whole production period proportion of evaporation to evapotranspiration for oats were from 34%to 38%.

关 键 词：燕麦 饲草燕麦 籽实燕麦 耗水量 棵间蒸发 

分 类 号：S823.4[农业科学—畜牧学]