@article{Luyan:267795,
      recid = {267795},
      author = {NIU Luyan and WANG Fengyun and SUN Jiabo and ZHENG Jiye  and ZHANG Xiaoyan},
      title = {Spectral Characteristics Comparison of Two Summer Corn  Cultivars under Different Fertilization Treatments },
      journal = {Asian Agricultural Research},
      address = {2017-11-20},
      number = {1812-2018-828},
      month = {Nov},
      year = {2017},
      abstract = {This study is aimed to explore the spectrum reflection  characteristics of summer corn leaves in different  fertilization conditions. Using hyperspectral remote  sensing technology, the experiments were conducted in  fields to collect the hyperspectral images of Denghai 605  (DH605) and Ludan 981 (LD981) in different growth period  under five fertilization treatments, and then the  reflectance of corn ear leaves was extracted by ENVI  software. The five fertilization treatments included the  control (CK) with no fertilization, 40 kg and 30 kg of  controlled-release fertilizer per 666.67 m2 as base (K40  and K30), 50 kg and 40 kg of compound fertilizer per 666.67  m2 as base with 15 kg urea as seed fertilizer (F50 + N and  F40 + N). The reflectance spectrums of the two corn  cultivars under different fertilization treatments showed  the approximately same changing trend with a reflection  peak at green band (550 nm) and a higher reflection  platform at near infrared band (760 nm -1050 nm). At the  heading to filling stage, the reflectance of DH605 and  LD981 was the highest under the CK, followed by the K30 and  F40 + N respectively. At the filling to dough stage, the  reflectance of DH605 and LD981 was the highest under the  treatment K30 and F40 + N respectively, which was obviously  higher than that of the other treatments. In the conditions  of compound fertilizer, except the late filling stage,  LD981 had little higher reflectance than DH605 at the other  stages. In the conditions of controlled-release fertilizer  and at dough to mature stage, LD981 had obviously higher  reflectance compared to the other stages, and also higher  than that of DH605; there was not obvious difference in  reflectance LD981 and DH605 at the other stages. },
      url = {http://ageconsearch.umn.edu/record/267795},
      doi = {https://doi.org/10.22004/ag.econ.267795},
}