玉米一穴双株高密度和单株常规种植施肥效应的比较研究  

Research on fertilizer effects under high-density planting(Double Plants in One Point) and conventional planting(Single Plant in One Point) of maize

作　　者：樊秀荣 党久占[2] 王殿清[3] 翟永胜 张玉金[2] 闫素珍 孙祥春 FAN Xiurong;DANG Jiuzhan;WANG Dianqing;ZHAI Yongsheng;ZHANG Yujin;YAN Suzhen;SUN Xiangchun(Agricultural Technology Extension Center of Linhe District,Linhe 015000,China;Maize Research Institute,Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences,Hohhot 010031,China;Agricultural Technology Extension Center of Hohhot City,Hohhot 010051,China)

机构地区：[1]临河区农业技术推广中心,内蒙古临河015000 [2]内蒙古农牧业科学院玉米研究所,内蒙古呼和浩特010031 [3]呼和浩特市农业技术推广中心,内蒙古呼和浩特010051

出　　处：《北方农业学报》2017年第4期43-46,共4页Journal of Northern Agriculture

基　　金：内蒙古农牧业科技创新基金项目(2016CXJJN02)

摘　　要：通过氮磷钾肥不同组合处理对玉米一穴双株高密度和单株常规种植施肥效应进行比较,试验结果表明,玉米一穴双株高密度种植各肥料处理比单株常规种植的相同处理增产,氮磷钾足量配合处理4(N_2P_2K_2)增产幅度最大。玉米一穴双株氮磷钾肥的综合效应比单株常规种植高42.6个百分点,氮肥效应高29.2个百分点,磷肥效应高22.5个百分点,钾肥效应高14.5个百分点。玉米一穴双株高密度种植比单株常规种植氮、磷、钾肥农学效率分别高10.5 kg/kg、12.7 kg/kg和25.8 kg/kg;氮、磷、钾肥利用率分别提高8.14,5.27,1.99个百分点。This study conducted compared experiments about the fertilizer effects of different combinations of nitrogen(N),phosphate(P)and potassium(K)fertilizers under high-density maize planting condition(double plants in one point)and conventional planting condition(single plant in one point).The results showed that the yields under high-density maize planting condition(double plants in one point)were higher than the yields under conventional planting(single plant in one point)of similar combinations of N,P and K fertilizers.And the yield under 4th combination of enough N,P and K fertilizers(N2P2K2)increased most.The comprehensive effect of N,P and K fertilizers under high-density maize planting condition(double plants in one point)was 42.6%higher than that under conventional planting condition(single plant in one point),and N fertilizer effect was 29.2%higher;P fertilizer effect was 22.5%higher;K fertilizer effect was 14.5%higher.And agronomic efficiency of the N,P,K fertilizers under high-density maize planting condition(double plants in one point)were 10.5 kg/kg,12.7 kg/kg and 25.8 kg/kg higher than that under conventional planting condition(single plant in one point).These results proved the fertilizer effects under high-density maize planting condition(double plants in one point)was very significant higher than those under conventional planting condition(single plant in one point).Under the experimental conditions,the utilization rate of N,P,K fertilizers under high-density maize planting condition(double plants in one point)were 8.14%,5.27%and 1.99%than that under conventional planting condition(single plant in one point),respectively.

关 键 词：玉米 双株种植 肥料效应 

分 类 号：S513[农业科学—作物学]