Journal ArticleDOI
Critical Nitrogen Dilution Curve for Optimizing Nitrogen Management of Winter Wheat Production in the North China Plain
Shanchao Yue,Qingfeng Meng,Rongfang Zhao,Rongfang Zhao,Fei Li,Fei Li,Xinping Chen,Fusuo Zhang,Zhenling Cui +8 more
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This article is published in Agronomy Journal.The article was published on 2012-03-01. It has received 77 citations till now.read more
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Development of critical nitrogen dilution curve of Japonica rice in Yangtze River Reaches
TL;DR: Wang et al. as mentioned in this paper developed an appropriate N c curve for Japonica rice, to compare this curve with existing N c dilution curve for Indica rice and to assess its plausibility to estimate the level of N nutrition for rice crop in east China.
Journal ArticleDOI
Active canopy sensing of winter wheat nitrogen status
Qiang Cao,Yuxin Miao,Guohui Feng,Xiaowei Gao,Fei Li,Bin Liu,Shanchao Yue,Shanshan Cheng,Susan L. Ustin,Rajiv Khosla +9 more
TL;DR: It is concluded that the three band user configurable Crop Circle ACS-470 sensor can improve the estimation of winter wheat N status as compared with two fixed band GreenSeeker sensor.
Journal ArticleDOI
Determination of critical nitrogen dilution curve based on leaf area index in rice
TL;DR: In this article, the critical nitrogen dilution curve based on LAI was developed for estimating plant N status in Japonica rice (Oryza sativa L) in east China.
Journal ArticleDOI
Non-destructive Assessment of Plant Nitrogen Parameters Using Leaf Chlorophyll Measurements in Rice
Syed Tahir Ata-Ul-Karim,Qiang Cao,Yan Zhu,Liang Tang,Muhammad Ishaq Asif Rehmani,Weixing Cao +5 more
TL;DR: The validation of the relationships developed in the present study with an independent data exhibited a solid model performance and confirmed their robustness as a reliable and rapid diagnostic tool for in-season estimation of plant N parameters for sustainable N management in rice.
Journal ArticleDOI
Effects of nitrogen management on root morphology and zinc translocation from root to shoot of winter wheat in the field
TL;DR: In this paper, a two-year field experiment was conducted to investigate the temporal and spatial distributions of winter wheat roots and relationships between root morphological traits and root Zn uptake with different N supplies.
References
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a Critical Examination of a Rapid Method for Determining Organic Carbon in SOILS—EFFECT of Variations in Digestion Conditions and of Inorganic Soil Constituents
TL;DR: WALKLEY et al. as mentioned in this paper presented a critical analysis of a method for detecting organically enriched carbon in soils, in the context of variability in digestion conditions and inorganic soil constitutions.
Journal ArticleDOI
Reducing environmental risk by improving N management in intensive Chinese agricultural systems
Xiaotang Ju,Guang-Xi Xing,Xinping Chen,Shao-Lin Zhang,Lijuan Zhang,Xuejun Liu,Zhenling Cui,Bin Yin,Peter Christie,Zhao-Liang Zhu,Fusuo Zhang +10 more
TL;DR: Examination of grain yields and N loss pathways in 2 of the most intensive double-cropping systems in China found that current agricultural N practices with 550–600 kg of N per hectare fertilizer annually do not significantly increase crop yields but do lead to about 2 times larger N losses to the environment.