摘要
在冀西山区,以浚单20、邢抗2号、承玉5号、郑单958、泰玉2号和鲁单981玉米品种为试验材料,采用相同的栽培措施,研究了不同品种的产量及其土壤、植株和籽粒中的氮磷钾含量。结果表明:参试玉米品种的产量顺序为邢抗2号>郑单958>承玉5号>浚单20>鲁单981>泰玉2号,其中邢抗2号、郑单958和承玉5号三者产量差异不显著,泰玉2号与其他5个品种产量差异均达到显著水平。不同生育期的土壤碱解氮含量顺序为大喇叭口期>苗期>收获期,土壤有机质、有效磷和有效钾以及植株全氮、全磷和全钾含量顺序均为苗期>大喇叭口期>收获期;籽粒中的全氮含量明显高于全磷和全钾含量。各品种处理的土壤氮磷钾含量与植株和籽粒中的氮磷钾含量无明显相关关系,但同一生育期不同品种的土壤有效磷、有效钾和植株全钾含量之间有差异,这可能与品种的遗传特性有关。
Taking Jundan 20, the test materials, the yields oJ Xingkang No. 2, Chengyu No. 5, Zhengdan 958, Taiyu No. 2 and Ludan 981 as ,f maize and the nitrogen, phosphorus and potassium contents of soil, plant and maize grain of different hybrids were studied using the same cultivation in west mountainous regions of Hebei Province. The results showed that the yields of different maize hybrids from high to low was Xingkang No. 2, Zhengdan 958, Chengyu No. 5, Jundan 20, yield among Xingkang No. 2, Zhengdan 958 Ludan 981 and Taiyu No. 2, there was no significant differences in and Chengyu No. 5, and there was significant differences between Taiyu No. 2 and other varieties. The order of soil available nitrogen content in different growth period was large bell stage 〉 seedling stage 〉 harvest stage, and the sequence of organic matter, available phosphorus, available potassium contents of soil and total nitrogen, total phosphorus and total potassium contents of plants all were seedling stage 〉 large bell stage 〉 harvest stage. The total nitrogen phosphorus and total potassium contents in maize grain. Though there phosphorus and potassium contents between soil and plant or grain , content was significantly higher than total were not significant correlation in nitrogen, there were significant differences among soilavailable phosphorous, soil available potassium and plant total potassium in identical growth stages of different maize hybrids, which may be related to genetic characteristics of maize hybrids.
出处
《河北农业科学》
2012年第9期11-15,共5页
Journal of Hebei Agricultural Sciences
关键词
旱地
玉米
产量
养分含量
冀西山区
content
WestProvinceDryland
Maize
Yield
Nutrientmountainous regions of Hebei
