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作 者:侯云鹏[1] 孔丽丽[1] 尹彩侠[1] 秦裕波[1] 李前[1] 谢佳贵[1]
机构地区:[1]吉林省农业科学院农业资源与环境研究所,农业部东北植物营养与农业环境重点实验室,长春130124
出 处:《吉林农业大学学报》2013年第5期563-567,共5页Journal of Jilin Agricultural University
基 金:国家粮食丰产工程项目(2011BAD16B10);"863"计划项目(2011AA100504);中国-国际植物营养研究所(IPNI)合作项目(BFDP-Jilin-2012)
摘 要:摘要:针对吉林省玉米施肥存在过量、不平衡和肥料利用率较低的现象,采用田间试验研究了养分专家系统Nutrientexpertsystem(NE)推荐施肥对玉米产量、经济效益、养分吸收和利用的影响。结果表明:NE推荐施肥对吉林省玉米有一定的增产效应和显著的增收效应。与农民习惯施肥处理(FP)相比,在减施氮肥52.1.79.2kg/hm2(25.8%~33.4%)、磷肥50.1~61.4kg/hm2(46.9%~52.7%)、钾肥22.7~28.7kg/hrn2(24.9%。30.2%)的情况下,NE推荐施肥处理(OPT)增产167~551kg/hm2、增收963—2022元/hm2,氮吸收量提高3.2~12.8kg/hm2,磷吸收量提高0.7—2.1kg/hm2,钾吸收量提高5.3~7.2kg/hm2,肥料利用效率提高13.7.19.6百分点。由此得出,养分专家系统(NE)适宜在吉林省玉米区推行。Considering the current problems of over and imbalanced fertilization and lower fertilizer use efficiency for maize in Jilin province, a field experiment was conducted to study the effects of fertilizer recommendation based on nutrient expert system (NE) on maize yield, economic benefits and fertilizer use efficiency. The results indicated that NE fertilizer recommendation had some yield increasing effect and obvious income increasing effect for maize in Jilin province. Compared with farmer's practice (FP), under the treatment of reducing N, P and K fertilizer application by 52.1--79.2 kg/hm2 (25.8 %-- 33.4%), 50.1--61.4 kg/hm2(46.9%--52.7%) and 22.7--28.7 kg/hm2(24.9%--30.2%), NE fertilizer recommendation (OIYF) increased grain yield, economic income, amount of N, P and K uptake and fertilizer use efficiency by 167--551 kg/hm2, 963--2 022 yuan/hm2, 3.2--12.8 kg/hm2, 0.7--2.1 kg/hm2, 5.3--7.2 kg/hm2 and 13.7%--19.6% respectively. Fertilizer recommendation (NE) is feasible for the maize area of Jilin province.
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