Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 28 checked references that resolve
resolves10.1016/j.fcr.2016.10.009Estimation of nitrogen fertilizer requirement for rice crop using critical nitrogen dilution curve
resolves10.4141/P00-108Influence of nitrogen fertilization on yield, hollow stem incidence and sap nitrate concentration in broccoli
resolves10.1007/BF02198111Quantitative relationships for the dependence of growth rate of arable crops on their nitrogen content, dry weight and aerial environment
resolves10.3389/fpls.2017.00638Development of a Critical Nitrogen Dilution Curve of Double Cropping Rice in South China
resolves10.1080/09064719950135588Determination of Nitrogen Status in Winter Wheat by Measuring Basal Stem Tissue Sap Nitrate Concentration
resolves10.1016/j.fcr.2004.02.014Low-altitude aerial photography for optimum N fertilization of winter wheat on the North China Plain
resolves10.1016/j.fcr.2006.05.009Is crop N demand more closely related to dry matter accumulation or leaf area expansion during vegetative growth?
resolves10.1023/A:1004783431055Relationships between dynamics of nitrogen uptake and dry matter accumulation in maize crops. Determination of critical N concentration
resolves10.1051/agro:2007032Replacing the nitrogen nutrition index by the chlorophyll meter to assess wheat N status
resolves10.1016/j.eja.2017.06.002Early nitrogen deficiencies favor high yield, grain protein content and N use efficiency in wheat
resolves10.3389/fpls.2016.00738Split Nitrogen Application Improves Wheat Baking Quality by Influencing Protein Composition Rather Than Concentration
resolves10.3724/SP.J.1006.2016.00909Simulating Critical Nitrogen Dilution Curve and Modeling Nitrogen Nutrition Index in Winter Wheat in Central Henan Area
resolves10.2134/agronj2011.0258Critical Nitrogen Dilution Curve for Optimizing Nitrogen Management of Winter Wheat Production in the North China Plain
The 10 references without a DOI — listed, not checked
no DOI — not checkedJamaati-e-somarin, S., Zabihi-e-mahmoodabad, R., Yari, A., Khayatnezhad, M., & Gholamin, R. (2010). Study of agronomical nitrogen use efficency of durum wheat, affected by nitrogen fertilizer and plant density. World Applied Sciences Journal,11, 674–681.
no DOI — not checkedLazarević, B., Rubinić, V., & Bensa, A. (2011). Leaf relative chlorophyll content and plant sap nitrate-nitrogen concentration as indicators for predicting nitrogen status in maize (Zea mays L.). Növénytermelés,60, 101–104.
no DOI — not checkedLemaire, G., & Salette, J. (1984). Relation entre dynamique de croissance et dynamique de prelevement d’azote pour un peuplement de graminees fourrageres. I. Etude de l’effet du milieu. Agronomie,4, 423–430.
no DOI — not checkedLi, Z. P., Feng, H., & Song, M. D. (2015). Critical nitrogen dilution curve and nitrogen nutrition index of winter wheat in guanzhong plain. Transactions of the Chinese Society of Agricultural Engineering,31, 135–141. (In Chinese with English Abstract).
no DOI — not checkedMohammd, A., Hassan, G., & Hamidreaza, M. (2011). Effect of plant density and nitrogen rate on yied and yield components of wheat in wild oat-infested condition. Advances in Environmental Biology,5, 3084–3090.
no DOI — not checkedSong, M. D., Li, Z. P., & Feng, H. (2016). Effects of irrigation and nitrogen regimes on dry matter dynamic accumulation and yield of winter wheat. Transactions of the Chinese Society of Agricultural Engineering,32, 119–126. (In Chinese with English Abstract).
no DOI — not checkedWollring, J., Reusch, S., (2001). Variable nitrogen application based on crop sensing. Proceedings—Fertiliser Society, United Kingdom.
no DOI — not checkedZhang, F. S. (2011). Soil testing and fertilization recommendation. Beijing: China Agricultural University Press. (In Chinese).
no DOI — not checkedZhang, J. J., Du, P., Guo, J. B., Cao, R., Zhang, J., & Ma, X. M. (2017). Study of critical nitrogen concentration model and nitrogen nutrition diagnosis in winter wheat with different N efficiency. Journal of Triticeae Crops,37, 1480–1488. (In Chinese with English Abstract).
no DOI — not checkedZhao, B., Yao, X., Tian, Y. C., Liu, X. J., Cao, W. X., & Zhu, Y. (2012). Accumulative nitrogen deficit models of wheat aboveground part based on critical nitrogen concentration. Chinese Journal of Applied Ecology,23, 3141–3148. (In Chinese with English Abstract).
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