不同施肥时期对玉米产量和质量的影响  

Effects of fertilizer application timings on maize yield and quality

作　　者：尹梅[1] 苏帆[1] 洪丽芳[1] 付利波[1] 陈华[1] 陈检锋[1] Yin Mei;Su Fan;Hong Lifang;Fu Libo;Chen Hua;Chen Jianfeng(Agricultural Environment and Resources Institute,Yunnan Academy of Agricultural Sciences Yunnan Kunming 650205)

机构地区：[1]云南省农业科学院农业环境资源研究所,云南昆明650205

出　　处：《西南地区作物系统养分管理研究》2013年第1期55-61,共7页

基　　金：鸣谢:作者感谢国家科技支撑计划项目(2008BADA4B10)和IPNI项目的资助。

摘　　要：作者采用田间小区试验研究了氮磷钾肥在作为基肥、苗肥和穗肥时不同的配比对玉米农学性状、产量和品质的影响。经过分区计产、考种和常规的玉米籽粒品质分析方法测定的结果表明,N肥分期施用对玉米生长的影响大于PK肥分期施用;当有机肥和PK肥作为基肥一次施入,N肥分50%苗肥和50%穗肥施入玉米的经济性状好于其他施肥时间,产量最高(919.5kg/ha),且籽粒蛋白质、粗脂肪和赖氨酸含量也高,分别为14.96%、5.00%和0.34%。而有机肥和K肥作基肥一次施入,N肥分20%基肥、30%苗肥和50%穗肥施入,P肥分50%基肥和50%苗肥施入的玉米淀粉、可溶性糖和赖氨酸含量是所有处理中最高的,分别为67.23%、2.45%和0.34%。A field experiment was conducted to investigate effects of NPK fertilizer application timing at planting,seedling and tasseling stages on agronomic traits,yield and quality of maize.The results indicated that maize yield was affected more by N splitting at different times than by PK fertilizers.When organicmanure plus PK fertilizers were used as base application and N fertilizer was split into 50%as basal application and 50%at tasseling stage,it achieved the highest maize yield(7919.5 kg/ha),and higher contents of protein(14.96%),crude fat(5.00%)and lysine(0.34%)than any other treatments.When organicmanure plus K fertilizer was used as basal application,N fertilizer was split into 20%as basal,30%at seedling stage and 50%at tasseling stage,and P fertilizer was split into 50%as basal and 50%at seedling stage,the highest contents of starch(67.23%),soluble sugar(2.45%)and lysine(0.34%)resulted.

关 键 词：玉米 施肥时期 产量 品质 

分 类 号：S513[农业科学—作物学]