微肥对玉米生长发育、养分吸收及产量的影响  

Effects of applying trace fertilizer on growth,nutrient uptake and yield on maize

作　　者：李青军[1] 李宁[2] 胡国智[3] 胡伟[1] 孟凤轩[1] 张炎[1] 

机构地区：[1]新疆农业科学院土壤肥料与农业节水研究所,新疆乌鲁木齐830091 [2]新疆生产建设兵团灌溉中心试验站,新疆乌鲁木齐830000 [3]新疆农业科学院哈密瓜研究中心,新疆乌鲁木齐830091

出　　处：《中国土壤与肥料》2013年第4期83-87,共5页Soil and Fertilizer Sciences in China

基　　金：国家自然科学基金项目(40961017);国际植物营养研究所(IPNI)项目(BFDP-Xinjiang-2009)

摘　　要：通过田间小区试验,研究了覆膜滴灌条件下施用铁、锰、锌等微肥对玉米生长发育、养分吸收及产量的影响。结果表明:玉米干物质累积最快的时期是在播种后62～99 d,NPK+Fe、NPK+Mn和NPK+Zn处理的玉米单株干物质的积累量分别比NPK处理增加8.84、4.74、15.69 g。NPK+Zn处理的玉米吸N量比NPK处理提高了3.07%,达到了显著差异,而NPK+Fe和NPK+Mn处理的玉米吸N量与NPK处理没有显著差异。NPK+Fe、NPK+Mn和NPK+Zn处理的玉米吸P量和吸K量与NPK处理相比均没有显著差异。施用铁、锌肥可以显著提高玉米的产量,增加玉米的百粒重,增产率分别为6.61%和4.46%,但施用锰肥效果不显著。This study designed the field plot test to examine the effects of applying trace fertilizer on growth,nutrient uptake and yield on maize under plastic mulched drip irrigation.The results showed that the dry matter accumulation of maize concentrated in a period of 62 ～ 99 d after sowing,and the dry matter accumulation of per plant of the NPK ＋ Fe,NPK ＋ Mn and NPK ＋ Zn treatment were respectively increased 8.84,4.74 and 15.69 g as compared with the NPK treatments.As compared with the NPK treatments,the nitrogen uptake of the NPK ＋ Zn treatment increased 3.07% and was significant difference,but the nitrogen uptake of the NPK ＋ Fe,NPK ＋ Mn treatment were not significant difference,and the uptakes of P and K were not significant difference among the NPK ＋ Fe,NPK ＋ Mn,NPK ＋ Zn and NPK treatment.The yield and 100-seed weight of the NPK ＋ Fe and NPK ＋ Zn treatment were significantly increased;the increasing rate were 6.61% and 4.46%,respectively;but no significant difference was found in the NPK ＋ Mn treatment,compared with the NPK treatments.

关 键 词：微肥 玉米 养分吸收 产量 

分 类 号：S513[农业科学—作物学]