PMID- 29434347
OWN - NLM
STAT- MEDLINE
DCOM- 20190930
LR  - 20190930
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 8
IP  - 1
DP  - 2018 Feb 12
TI  - Unary Non-Structural Fertilizer Response Model for Rice Crops and Its Field 
      Experimental Verification.
PG  - 2792
LID - 10.1038/s41598-018-21163-w [doi]
LID - 2792
AB  - The quadratic polynomial fertilizer response model (QPFM) is the primary method 
      for implementing quantitative fertilization in crop production, but the success 
      rate of this model's recommended fertilization rates in China is low because the 
      model contains a high setting bias. This paper discusses a new modelling method 
      for expanding the applicability of QPFM. The results of field experiments with 8 
      levels of N, P, or K fertilization showed that the dynamic trend between rice 
      yield increases and fertilizer application rate exhibited a typical exponential 
      relationship. Therefore, we propose a unary non-structural fertilizer response 
      model (NSFM). The responses of 18 rice field experiments to N, P, or K 
      fertilization indicated that the new models could significantly predict rice 
      yields, while two experimental fitting results using the unary QPFM did not pass 
      statistical significance tests. The residual standard deviations of 13 new models 
      were significantly lower than that of the unary QPFM. The linear correlation 
      coefficient of the recommended application rates between the new model and the 
      unary QPFM reached a significant level. Theoretical analysis showed that the 
      unary QPFM was a simplified version of the new model, and it had a higher fitting 
      precision and better applicability.
FAU - Zhang, Mingqing
AU  - Zhang M
AD  - Soil and Fertilizer Institute, Fujian Academy of Agricultural Science, Fuzhou, 
      350013, China.
FAU - Li, Juan
AU  - Li J
AD  - Soil and Fertilizer Institute, Fujian Academy of Agricultural Science, Fuzhou, 
      350013, China.
FAU - Chen, Fang
AU  - Chen F
AD  - Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, 
      Chinese Academy of Sciences, Wuhan, 430074, China. fchen@ipni.ac.cn.
AD  - Wuhan Office of International Plant Nutrition Institute, Wuhan, 430074, China. 
      fchen@ipni.ac.cn.
FAU - Kong, Qingbo
AU  - Kong Q
AD  - Soil and Fertilizer Institute, Fujian Academy of Agricultural Science, Fuzhou, 
      350013, China.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20180212
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
RN  - 0 (Fertilizers)
RN  - 0 (Soil)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Agriculture/*methods
MH  - Crop Production/methods
MH  - Crops, Agricultural/metabolism
MH  - Fertilizers/*analysis
MH  - Models, Theoretical
MH  - Nitrogen/analysis
MH  - Oryza/*metabolism
MH  - Soil/chemistry
PMC - PMC5809603
COIS- The authors declare no competing interests.
EDAT- 2018/02/13 06:00
MHDA- 2019/10/01 06:00
PMCR- 2018/02/12
CRDT- 2018/02/14 06:00
PHST- 2017/09/06 00:00 [received]
PHST- 2018/01/29 00:00 [accepted]
PHST- 2018/02/14 06:00 [entrez]
PHST- 2018/02/13 06:00 [pubmed]
PHST- 2019/10/01 06:00 [medline]
PHST- 2018/02/12 00:00 [pmc-release]
AID - 10.1038/s41598-018-21163-w [pii]
AID - 21163 [pii]
AID - 10.1038/s41598-018-21163-w [doi]
PST - epublish
SO  - Sci Rep. 2018 Feb 12;8(1):2792. doi: 10.1038/s41598-018-21163-w.