摘要： 采用3414试验设计在内蒙古阴山北麓冷凉地区对胡萝卜施用化肥进行研究,结果表明在该地区种植胡萝卜大量施用有机肥的基础上,施用化肥均有显著的增产增收效果（增产20%以上,增收3300 元/hm2以上）。每kg N平均增产胡萝卜38.5kg,每 kg P2O5增产胡萝卜173.8kg,每 kg K2O增产胡萝卜117.2kg。磷肥效果>钾肥效果>氮肥效果。该地区获最高产量为72.2t/hm2。获最大施肥效益的施 N 量为251.7kg/hm2,施 P2O5量为64.3kg/hm2,施 K2O 量为172.3kg/hm2。在该地区最佳经济施肥量下的产量为71.8t/hm2。N 的养分利用率为25.7%,P2O5的利用率为22.2%,K2O 的利用率为30.1%。每生产1t 胡萝卜吸收 N2.26kg,吸收 P2O5 0.63kg,吸收 K2O3.58kg。
关键词:
胡萝卜,
化肥肥效,
吸肥特点
Abstract: A fertilizer study on carrot was conduced in cool region in north foot of Yin mountain in Inner Mongolia.The result showed that chemical fertilizer can increase carrot yield significantly based on the organic fertilizer applied.38.5kg,173.8kg and 117.2kg carrot was increased by per kg.N,PZ05 and K=0 respectively andthe effect of P was greatest and the N was lowest.The highest yield can reach 72.2t/hm= and the average incomewas increased more than 3300 yuan/hmZ.The economic optimum yield 71.8t/hm' can he received byapplication251.7kmfiI,64.3km2PZ05 and 172.3km= K O.NUE of N P K was 25.7%,22.2% and 30.1% respectively.Each of carrot removed N 2.26kg and P=OS 0.63ko and K 3.58kg.
Key words:
Carrot,
Fertilizer effct,
Uptake law
中图分类号:
李珍, 段玉, 赵润喜, 李文华. 内蒙古阴山北麓施肥对胡萝卜产量和吸肥特点的影响[J]. 华北农学报, 2007, 22(S3): 71-74. doi: 10.7668/hbnxb.2007.S3.017.
LI Zhen, DUAN Yu, ZHAO Run-xi, LI Wen-hua. Effect of Fertilizer on Carrot Yield and Uptake Law in North Foot of Yin Mountain Inner Mongolia[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2007, 22(S3): 71-74. doi: 10.7668/hbnxb.2007.S3.017.