高粱作为饲用玉米替代作物的潜力  

Potential of Sorghum as an Alternative to Corn Forage

作　　者：冯葆昌[1] 王显国[2] 张尚雄[1] 玉柱[2] 邱淑彬 李源[4] 刘贵波[4] 刘忠宽[5] 

机构地区：[1]全国畜牧总站 [2]中国农业大学 [3]天津农学院 [4]河北省农林科学院旱作农业研究所 [5]河北省农林科学院农业资源环境研究所

出　　处：《中国奶牛》2017年第8期1-6,共6页China Dairy Cattle

基　　金：农业部"948"项目(2015-Z29)资助

摘　　要：当前,农业生产力正受到大气CO2浓度增加、温度升高、降水模式变化等全球气候变化因素的影响。降水模式将影响整个农业领域的作物水分需求能力、水资源可利用性、作物生产力以及水资源获取成本。因此,寻找需水量较低的替代作物,提高单位耗水量的作物产量或有机物产出,对农业可持续发展至关重要。高粱是世界上最重要的作物之一,是一种能够适应多种农艺和环境条件的作物,它特别适应在降水量低、灌溉用水有限的地区种植。饲草高粱的产量与玉米相当,表明在水资源供应有限的区域,高粱具有替代玉米的潜力。Climate change, which is currently characterized by increased atmospheric CO2, rising temperature, and altered pattern of precipitation, is affecting agricultural productivity. Rising temperatures and shifting precipitation patterns will alter the ability to meet crop water requirements, water availability, crop productivity, and costs of water access across the agricultural landscape. Searching for alternative crops with lower water requirements increased yield or organic matter per unit of water are important for agricultural sustainability. Sorghum is one of the world＇s important crops; a crop that is adapted to a variety of agronomic and environmental conditions, particularly to areas with low rainfall or limited access of irrigation water. Forage Sorghum is able to produce comparable yield to corn suggesting that there is a potential for Sorghum to replace corn in areas where water supply is limited.

关 键 词：高粱 气候变化 耐旱性 盐浓度 

分 类 号：S823.4[农业科学—畜牧学]