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
  • [21] A(n,k)和P(n,k)的精确公式
    吴树宏
    数学研究与评论, 2007, (02) : 437 - 444
  • [22] N,P & K absorption and utilization in sugarcane under different substrates of fertilizer resources
    莫云川
    李杨瑞
    张敏
    王一丁
    王威豪
    叶燕萍
    中国生态农业学报(中英文), 2008, (02) : 359 - 362
  • [23] ABSORPTIVE EFFECTS IN REACTIONS K-P-] K-PI+N AND K+N-] K+PI-P
    KIMEL, JD
    REYA, E
    NUCLEAR PHYSICS B, 1972, B 48 (02) : 573 - &
  • [24] EFFECTS OF N P K FERTILIZATION ON THE CHEMISTRY OF A YELLOW PODZOLIC SOIL UNDER PINUS-RADIATA
    KHANNA, PK
    RAISON, RJ
    FALKINER, RA
    WILLETT, IR
    CONNELL, MJ
    FOREST ECOLOGY AND MANAGEMENT, 1992, 52 (1-4) : 65 - 85
  • [25] Nicandra physalodes growth at different concentrations of N, P and K
    de Matos, Christiano da Conceicao
    da Silva, Cicero Teixeira
    Cunha, Priscila Torres
    Martins Gandini, Elizzandra Marta
    Silva, Daniel Valadao
    Barbosa, Edimilson Alves
    dos Santos, Jose Barbosa
    Ferreira, Evander Alves
    SEMINA-CIENCIAS AGRARIAS, 2015, 36 (03): : 1307 - 1316
  • [26] AN EXPERIMENT MEASURING EFFECTS OF N P AND K FERTILIZERS ON YIELD AND N P AND K CONTENTS OF GRASS
    WIDDOWSON, FV
    PENNY, A
    WILLIAMS, RJ
    JOURNAL OF AGRICULTURAL SCIENCE, 1965, 64 : 93 - +
  • [27] N, P, K - OR N, P2O5, K2O
    不详
    JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1957, 5 (02) : 152 - 152
  • [28] RELATION OF NUTRIENT CONTENT OF BROCCOLI AND BRUSSELS-SPROUTS LEAVES TO MATURITY AND FERTILIZATION WITH N, P, K, AND MANURE
    MUNRO, DC
    MACKAY, DC
    CUTCLIFFE, JA
    CANADIAN JOURNAL OF PLANT SCIENCE, 1978, 58 (02) : 385 - 394
  • [29] GROWTH OF PAPAYA AND PETIOLE NUTRIENT COMPOSITION IN RELATION TO N,P, AND K FERTILIZATION
    REDDY, YTN
    KOHLI, RR
    BHARGAVA, BS
    GARTENBAUWISSENSCHAFT, 1988, 53 (02): : 92 - 95
  • [30] Eggplant yield response to increasing rates of N-P-K fertilization
    Víllora, G
    Pulgar, G
    Moreno, DA
    Romero, L
    PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY, 1998, 63 (1-2) : 87 - 91