Exploring optimal nitrogen management practices within site-specific ecological and socioeconomic conditions

Li, Tingyu; Zhang, Xin; Gao, Hewei; Li, Bei; Wang, Huan; Yan, Qiongyu; Ollenburger, Mary; Zhang, Weifeng

doi:10.1016/j.jclepro.2019.118295

Cited by 35 publications

(22 citation statements)

References 51 publications

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“…Yang et al, 2016). However, in the practice, enhanced efficiency N fertilizers may not improve NUE and crop yield because their impacts may be constrained to particular environmental conditions (T. Li et al, , 2019. For example, in this study, the use of enhanced efficiency N fertilizers had no significant enhancement on grain yield, N uptake, fraction of aboveground N derived from fertilizer, and NUE 15N (Figure 2).…”

Section: Different Technologies and Management Practicesmentioning

confidence: 66%

Fates and Use Efficiency of Nitrogen Fertilizer in Maize Cropping Systems and Their Responses to Technologies and Management Practices: A Global Analysis on Field ¹⁵N Tracer Studies

et al. 2021

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Section: Different Technologies and Management Practicesmentioning

confidence: 66%

Fates and Use Efficiency of Nitrogen Fertilizer in Maize Cropping Systems and Their Responses to Technologies and Management Practices: A Global Analysis on Field ¹⁵N Tracer Studies

et al. 2021

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“…The goals of reducing the fertilizer application rate without changing production have been provided as possibilities in many studies in China by enhancing the fertilizer application techniques [10,34,37,71]. Compared to the implementation of the AOPST, stimulation of advanced fertilizer application techniques is suggested for local policy makers.…”

Section: Significance For Relevant Stakeholdersmentioning

confidence: 99%

“…China is the world's largest chemical fertilizer consumer, with nitrogen consumption accounting for 40% of global consumption [8]. The high N consumption intensive agriculture areas of China result in more than 10 million tons of reactive nitrogen loss (RNL) and a huge amount of GHG emissions annually, leading to environmental degradation and accelerating climate change [9,10]. Moreover, China's fast economic growth rate reduced the overall available amount of arable land, which negatively impacted domestic food supply.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Sustainability of Irrigated Crops in Arid Regions, China

Fan

Zhang

et al. 2021

Sustainability

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Ensuring national food security amidst ongoing economic development whilst both protecting the environment and reducing the dependence on fossil fuels are significant challenges for Chinese sustainable development. The main objectives of this study were to reveal irrigated crop (wheat, maize, and sunflower) performance in terms of energy, economic, and environmental aspects in China’s largest designed irrigation area, Hetao irrigation district (HID), and to evaluate agricultural suitability based on plant structure. An integrated indicator and comprehensively assessment method were used to evaluate the above objectives based on the results from in-person surveys. The results show that maize exhibits the best overall performance compared to two other major crops (wheat and sunflower), which supports the government policy of adjust and optimize the planting structure program (AOPST), an effective way to achieve the multiple-objectives for sustainable agricultural development. However, reducing fertilizer remains a more critical factor than AOPST. These study results provide useful guidance for policy-makers and relevant stake-holders both in a regional context for the HID and at the global agricultural governance and management level.

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“…This operation ensured that the relative soil moisture in each pot was controlled within the set range. Other management measures were kept constant as much as possible (Abid et al, 2016;Wang et al, 2019;Li et al, 2019 The ear-bearing rate of a tiller at a certain tiller position = the number of tillers at a certain tiller position with ears/ the total number of tillers at a certain tiller position × 100%.…”

Section: Experimental Designmentioning

confidence: 99%

“…However, global climate change has resulted in frequent droughts in this area, especially in winter and spring when the frequency and damage of droughts gradually increase. This adversely affects the tillering and seed setting of wheat and has become an important limiting factor for wheat production (Li et al, 2019;Yuan et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Spike formation and seed setting of the main stem and tillers under post‐jointing drought in winter wheat

Lin

Shang

et al. 2020

J Agronomy Crop Science

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To clarify the influence of post-jointing drought on the ear-bearing and seed-setting characteristics of the main stem and tillers of winter wheat (Triticum aestivum L.), a pot experiment was conducted with cultivars "Shannong 29" (SN29) and "Heng 0628" (H0628), and five water regimes: mild drought (WR1) and severe drought (WR2) for 0-5 days after jointing, mild drought (WR3) and severe drought (WR4) for 0-10 days after jointing and adequate water supply as a control (CK). The present study focused on primary tillers (appear in the axils of main stem leaves: T1, T2, T3, T4, etc.), as well as on secondary tillers (appear from the bud in the axil of the prophyll: T10 and T20; appear in the axil of the first leaf of the primary tiller T1: T11). The yield components of tillers showed a downward trend with increasing tiller position and drought degree and duration, and the kernels per spike, single kernels weight and grain yield per spike of tillers T2, T3, T10 and T4 decreased more than those of the other tillers. These outcomes may be related to the spike developmental stages at the time of the drought period. Severe drought during the period from when the stamen primordium is first present (Waddington's stage 4) to when the carpel extends around the three sides of the ovule (Waddington's stage 5) significantly decreased the seed set of tillers, but short-term (5 days) mild drought during this period and even a short-term severe drought before Waddington's stage 4 had little effect on the seed set of tillers. The ear-bearing capacity of tillers was determined not only by the spike developmental stage, but also by the gap from the main stem and the competition of nutrition and space between tillers. Although the ear-bearing rate of tillers T3 and T10 decreased rapidly after the short-term mild drought, the increase in the ear-bearing rate of tillers T20 and T11 effectively compensated for the loss of the number of spikes per plant. Therefore, the short-term mild drought at the jointing stage had no significant effect on the grain yield of the two cultivars. The tillers T2, T3, T10 and T4 were sensitive to soil moisture in the jointing stage and had high plasticity. During this period, if timely irrigation improves soil moisture, it is expected to increase the earbearing rate and seed set of these tillers, thereby increasing grain yield.

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Exploring optimal nitrogen management practices within site-specific ecological and socioeconomic conditions

Cited by 35 publications

References 51 publications

Fates and Use Efficiency of Nitrogen Fertilizer in Maize Cropping Systems and Their Responses to Technologies and Management Practices: A Global Analysis on Field ¹⁵N Tracer Studies

Fates and Use Efficiency of Nitrogen Fertilizer in Maize Cropping Systems and Their Responses to Technologies and Management Practices: A Global Analysis on Field ¹⁵N Tracer Studies

Evaluation of Sustainability of Irrigated Crops in Arid Regions, China

Spike formation and seed setting of the main stem and tillers under post‐jointing drought in winter wheat

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Exploring optimal nitrogen management practices within site-specific ecological and socioeconomic conditions

Cited by 35 publications

References 51 publications

Fates and Use Efficiency of Nitrogen Fertilizer in Maize Cropping Systems and Their Responses to Technologies and Management Practices: A Global Analysis on Field 15N Tracer Studies

Fates and Use Efficiency of Nitrogen Fertilizer in Maize Cropping Systems and Their Responses to Technologies and Management Practices: A Global Analysis on Field 15N Tracer Studies

Evaluation of Sustainability of Irrigated Crops in Arid Regions, China

Spike formation and seed setting of the main stem and tillers under post‐jointing drought in winter wheat

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Product

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Fates and Use Efficiency of Nitrogen Fertilizer in Maize Cropping Systems and Their Responses to Technologies and Management Practices: A Global Analysis on Field ¹⁵N Tracer Studies

Fates and Use Efficiency of Nitrogen Fertilizer in Maize Cropping Systems and Their Responses to Technologies and Management Practices: A Global Analysis on Field ¹⁵N Tracer Studies