Nitrogen application practices to reduce cadmium concentration in rice (Oryza sativa L.) grains

Zhou, Qingyun; Wang, Hui; Xu, Chao; Zheng, Shao-Hui; Wu, Mingyan; Zhang, Quan; Liao, Yulin; Zhu, Huiling; Zhu, Qing; Huang, Daoyou

doi:10.1007/s11356-022-19381-x

Cited by 6 publications

(4 citation statements)

References 31 publications

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“…The nitrogen HI (NHI) was calculated as the percentage of accumulated nitrogen in grains to total plant nitrogen accumulation 22 . The nitrogen transport coefficient from straw to panicle (nitrogen uptake of spikelets/nitrogen uptake of straw) and the contribution of nitrogen accumulation after heading (NAHD) to grain nitrogen was calculated as the difference in total nitrogen uptake at maturity stage (TN) and that at the heading stage divided by grain nitrogen uptake 28,29 …”

Section: Methodsmentioning

confidence: 99%

“…22 The nitrogen transport coefficient from straw to panicle (nitrogen uptake of spikelets/nitrogen uptake of straw) and the contribution of nitrogen accumulation after heading (NAHD) to grain nitrogen was calculated as the difference in total nitrogen uptake at maturity stage (TN) and that at the heading stage divided by grain nitrogen uptake. 28,29 Statistical analysis Analysis of variance and Pearson's correlation analysis were performed using Statistix 8 (Analytical Software, Tallahassee, FL, USA). Data from each sampling date were analyzed separately.…”

Section: Experimental Design and Treatmentmentioning

confidence: 99%

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Improving grain yield and nitrogen use efficiency of direct‐seeded rice with simplified and nitrogen‐reduced practices under a double‐cropping system in South China

Nongrong

Zhong

et al. 2023

J Sci Food Agric

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Background Enhancing grain yield and nitrogen use efficiency (NUE) of rice is of great importance for sustainable agricultural development. Little effort has been made to increase grain yield and NUE of direct‐seeded rice under the double‐cropping system in South China. Field trials were conducted during 2018–2020 with four treatments, including nitrogen‐free, farmers' fertilization practice (FP), ‘three controls’ nutrient management (TC), and simplified and nitrogen‐reduced practice (SNRP). Results Grain yield under SNRP averaged 6.46 t ha−1 during the three years and was 23.0% higher than that of FP but comparable to that of TC. Recovery efficiency (REN), agronomic efficiency (AEN), and partial factor productivity (PFPN) of nitrogen under SNRP increased by 12.0–22.7%, 159.3–295.0% and 94.6–112.5% respectively compared with FP. Harvest index and sink capacity increased by 7.3–10.8% and 14.9–21.3% respectively. Percentage of productive tillers (PPT) and biomass after heading increased by 24.0% and 104.5% respectively. Leaf nitrogen concentration at heading and nitrogen accumulation after heading increased by 16.3% and 842.0% respectively. Grain yield was positively correlated with PPT, sink capacity, harvest index, biomass and nitrogen accumulation after heading, REN, AEN, and PFPN. Conclusion Grain yield and NUE under SNRP were superior to those under FP and comparable to those under TC. Increase in sink capacity, higher PPT, more biomass and nitrogen accumulation after heading, and greater harvest index were responsible for high grain yield and NUE in SNRP with reduced nitrogen fertilizer and labor input. SNRP is a feasible approach for direct‐seeded rice under a double‐cropping system in South China. © 2023 Society of Chemical Industry.

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Section: Methodsmentioning

confidence: 99%

Section: Experimental Design and Treatmentmentioning

confidence: 99%

Improving grain yield and nitrogen use efficiency of direct‐seeded rice with simplified and nitrogen‐reduced practices under a double‐cropping system in South China

Nongrong

Zhong

et al. 2023

J Sci Food Agric

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“…This means that the solubilizing capacity is better, less surfactant is used, and the expense of cleaning up is less. 49,50 Like CMC, reduced interfacial and surface tensions mean that a surface-active substance works better. The hydrophilelipophile balance is a method of calculating how much a surfactant with a value between 3 and 6 completely dissolves in the NAPL phase and forms water-in-oil emulsions.…”

Section: Performance Evaluation Methods For Surfactantsmentioning

confidence: 99%

“…67 The enhanced adsorption of organic pollutants in the land caused by the adsorbed surfactants will decrease the effectiveness of remediation. 49 As a result, the type of surfactant inuences its ideal concentration.…”

Section: Factors Affecting the Performance Of Surfactantsmentioning

confidence: 99%

A comprehensive review on removal of environmental pollutants using a surfactant based remediation process

Saxena,

Islam,

Baliyan

et al. 2023

RSC Sustain.

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Enhancing soil health to minimize cadmium accumulation in agro-products: the role of microorganisms, organic matter, and nutrients

Xin

2024

Environmental Pollution

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Nitrogen application practices to reduce cadmium concentration in rice (Oryza sativa L.) grains

Cited by 6 publications

References 31 publications

Improving grain yield and nitrogen use efficiency of direct‐seeded rice with simplified and nitrogen‐reduced practices under a double‐cropping system in South China

Improving grain yield and nitrogen use efficiency of direct‐seeded rice with simplified and nitrogen‐reduced practices under a double‐cropping system in South China

A comprehensive review on removal of environmental pollutants using a surfactant based remediation process

Enhancing soil health to minimize cadmium accumulation in agro-products: the role of microorganisms, organic matter, and nutrients

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