摘要
近年来北京地区持续干旱,自2006年起玉米生产开始由灌溉栽培转向雨养旱作生产,随之带来利用自然降水播种导致播种时期的不确定性,品种选择不当将导致严重减产,品质大幅下降。一旦错过安全播种时期,玉米不能正常成熟,将给农民造成巨大的经济损失。为改变农民对雨养玉米品种和播期选择的盲目状态,确保稳产、高产,切实促进农民增收,顺义区种植业服务中心技术人员于2008年对此进行了专项试验和研究。选择了5个北京地区主栽品种进行了播种期与产量互作的列区试验,最终找出了以上品种的临界安全播种日期、最适播种期,明确了京郊平原地区雨养旱作玉米的主推品种,此试验对现实生产具有较强的指导意义。
The worst drought in Beijing continues in these years, since 2006, the corn production method shifted from irrigable cultivation to rained dry field cultivation, which brought the changefully items during the breeding period by items will cause the taking advantage of natural precipitation, plus the unsuitable way of corn selection, these reduction production of corn. Once miss the safety breeding period, the corn can＇t mature, it must course the farmers＇ enormous economic loss. To change the farmers＇ blindness when they make various choices and to confirm the sowing＇s day, insure the high and stable yield, and to increase the farmers＇ income, the agro-technician of plantation service center of Shunyi district m a d e experiments in 2008. Through the treatment plot of five main various, they took the critical safety sowing period, the suitable sowing period and the best corn＇s various. This dissertation is the guide for the corn production in Beijing plain.
出处
《中国农学通报》
CSCD
北大核心
2009年第18期198-201,共4页
Chinese Agricultural Science Bulletin
关键词
玉米
分期播种
品种选择
适宜播种时期
产量
corn, sowing in installment, various choices, suitable sowing period, yield
