不同类型的缓控释肥对玉米氮素吸收及土壤速效氮的影响李前1孔丽丽.doc

基金项目：农业部公益性行业项目“主要粮食作物一次性施肥技术研究与示范”（201303103）、吉林省作物营养调控与新型肥料科技创新中心（20160623030TC）、国家玉米产业体系（CATS-02）、国家缓控释肥工程技术研究 作者简介：李前（1988-），女，硕士，从事植物营养研究。 HYPERLINK Tel:043187063181 Tel:043187063181 通讯作者：谢佳贵，男，博士，研究员，E-mail：xiejiagui@163.com 尹彩侠，女，硕士，副研究员，E-mail：yincaixia11@163.com 不同类型的缓/控释肥对玉米氮素吸收及土壤速效氮的影响 李前1 孔丽丽1 李天慧2 侯云鹏1 秦裕波1 谢佳贵1 * 尹彩侠1 * （1.农业部东北植物营养与农业环境重点实验室 吉林省农业科学院农业资源与环境研究所 吉林 长春 130033，2. 白城洮北区青山农业站 吉林 137000） 摘要：本文通过盆栽试验，研究几种缓/控释肥一次性施用对玉米氮素吸收和土壤速效氮的影响。结果表明：与不施氮处理相比，施用氮肥具有显著的增产效果，相同施氮量的条件下，一次性施用不同类型的缓/控释肥的产量之间存在显著差异。乐喜施、鲁西化工处理的产量显著高于金正大和益多保处理，增产达到7.3%-11.8%。在成熟期，乐喜施、鲁西化工和益多保处理的植株氮素积累量显著高于金正大和施可丰处理。这几种缓/控释肥在土壤中的氮素释放天数在60天左右，释放高峰在播种后32天前后，之后土壤速效氮含量呈下降趋势。 关键词：缓/控释肥；玉米；氮素吸收；土壤速效氮 The Effects on Maize Nitrogen Uptake and Soil Available Nitrogen of different kinds of Slow/controlled Release Fertilizers LI Qian1, Kong Li-li1, LI Tian-hui2, Hou Yun-peng1, Qin Yu-bo1, Xie Jia-gui1*, Yin Cai-xia1* (1.Key laboratory of Plant Nutrition and Agro-Environment in Northeast Region, Ministry of Agricultural P.R. China, Agricultural Resources and Environment Institute ,Jilin Academy of Agricultural Sciences ,Changchun ,130033，2.Qingshan Agricultural station in Taobei region of Baicheng city, Jilin, 137000) Abstract：The pot experiment was carried out to study the effect of maize nitrogen uptake and soil available N on several styles slow/ controlled release fertilizers one time application. The result showed that, compared with N0 treatment, the nitrogen fertilizer application increases the yields significantly. Under the same N fertilizer application amount, the yield of one-time application different styles slow/controlled release fertilizer has significant difference. Lexishi, Luxihuagong treatments’ yield was significant higher than Jinzhengda and Yiduobao by 18.7%-21.14%. In mature, the plant N accumulation of Lexishi, Luxihuagong and Yiduobao was higher than Jinzhengda and Shikefeng significantly. These slow/controlled release fertilizer release available N in soil abo