Reflectance measurement of N, P and K content of wollypod vetch under different N, P and K fertilization

被引:0
|
作者
Basayigit, Levent [1 ]
Albayrak, Sebahatn [1 ]
机构
[1] Suleymann Demirel Univ, Fac Agr, Dept Soil Sci, Isparat, Turkey
关键词
visible near-infrared reflectance spectroradiometer; reflectance; fertilization;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The objective of this study was to determine the relationships between nitrogen, phosphorus and potassium content of wollypod vetch (Vicia villosa ssp dasycarpa (Ten.) Cav) and spectral reflectance. Visible near-infrared reflectance spectroradiometer (VNIR) was used to predict the N, P and K content of wollypod vetch under different N (0, 20, 40, 60 and 80 kg ha), P (0, 30, 60, 90 and 120 kg ha) and K (0, 20, 40, 60 and 80 kg ha) fertilization. An experiment was conducted in the 2006 growing season in the Mediterranean region conditions of Turkey. Increasing N fertilization decreased spectral reflectance from 1.18 to 0.78 %. The highest spectral reflectance was obtained from control plot (1.19 %), while the least spectral reflectance was obtained from 60 kg ha P dose (0.82 %) in P fertilization. In K fertilization, the highest spectral reflectance was obtained from control plot (1.19 %), while the least spectral reflectance was obtained from 40 kg ha K dose (0.90 %). Woolypod vetch N, P and K content had high correlation with spectral reflectance. In N fertilization, the r(2) of predicted and measured N, P and K were high (0.935, 0.797 and 0.884, respectively). In P fertilization, the r(2) of predicted and measured N, P and K were (0.800, 0.886 and 0.928). In K fertilization, the r(2) of predicted and measured N, P and K were (0.911, 0.851 and 0.859, respectively). Present results suggest that spectral reflectance in VNIR can be used for non-destructive prediction of forage N, P and K content in wollypod vetch under different fertilizations.
引用
收藏
页码:5609 / 5619
页数:11
相关论文
共 50 条
  • [41] INFLUENCE OF N-P-K FACTORIAL FERTILIZATION ON GROWTH-CHARACTERISTICS AND FOLIAR CONTENT OF 4 FOLIAGE PLANTS
    POOLE, RT
    CONOVER, CA
    HORTSCIENCE, 1981, 16 (06) : 771 - 772
  • [42] Study of K- → p Λπ+ π-, Λπ0 and γN → K+Σ*
    Wu, Jia-Jun
    Gao, Puze
    Dualt, S.
    Zou, B. S.
    8TH INTERNATIONAL WORKSHOP ON THE PHYSICS OF EXCITED NUCLEONS (NSTAR 2011), 2012, 1432 : 315 - 318
  • [43] Plotting p(k) factorial or p(n-k) fractional factorial data
    Beckman, RJ
    AMERICAN STATISTICIAN, 1996, 50 (02): : 170 - 174
  • [44] N, P and K use efficiency and maize yield responses to fertilization modes and densities
    LI Guang-hao
    CHENG Qian
    LI Long
    LU Da-lei
    LU Wei-ping
    JournalofIntegrativeAgriculture, 2021, 20 (01) : 78 - 86
  • [45] POTATO CHIP COLOR, SPECIFIC GRAVITY AND FERTILIZATION OF POTATOES WITH N-P-K
    KUNKEL, R
    HOLSTAD, N
    AMERICAN POTATO JOURNAL, 1972, 49 (02): : 43 - +
  • [46] Divergent responses of leaf N:P:K stoichiometry to nitrogen fertilization in rice and weeds
    Sun, Xiao
    Guo, Jiuxin
    Guo, Shiwei
    Guo, Hui
    Hu, Shuijin
    WEED SCIENCE, 2019, 67 (03) : 339 - 345
  • [47] N, P and K fertilization response on maize in Vertisols in Central Java']Java, Indonesia
    Samijan
    Minarsih, S.
    Hindarwati, Y.
    1ST INTERNATIONAL CONFERENCE ON SUSTAINABLE TROPICAL LAND MANAGEMENT, 2021, 648
  • [48] EFFECT OF ADDITION OF SULFUR TO N, P AND K FERTILIZATION ON YIELD AND QUALITY OF GREENHOUSE BARLEY
    MARTEL, YA
    ZIZKA, J
    CANADIAN JOURNAL OF PLANT SCIENCE, 1977, 57 (02) : 597 - 606
  • [49] N, P and K use efficiency and maize yield responses to fertilization modes and densities
    Li Guang-hao
    Cheng Qian
    Li Long
    Lu Da-lei
    Lu Wei-ping
    JOURNAL OF INTEGRATIVE AGRICULTURE, 2021, 20 (01) : 78 - 86
  • [50] EFFECTS OF N, P, AND K FERTILIZATION ON YIELD AND QUALITY OF TALL FESCUE FORAGE IN WINTER
    BALASKO, JA
    AGRONOMY JOURNAL, 1977, 69 (03) : 425 - 428