Different Nitrate and Ammonium Ratios Affect Growth and Physiological Characteristics of Camellia oleifera Abel. Seedlings

Wang, Rui; Chen, Longsheng; Chen, Jianjun; Chen, Yongzhong; Zhang, Zhen; Wang, Xiangnan; Peng, Yinghe; Peng, Shaofeng; Li, Anliang; Wei, Xiangying

doi:10.3390/f9120784

Cited by 11 publications

(13 citation statements)

References 32 publications

(35 reference statements)

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“…Both ammonium (NH 4 + ) and nitrate (NO 3 − ) are the major inorganic sources of N for plants [43][44][45][46][47][48]. Both of them have a significant effect on crop growth and must be managed appropriately to maximize plant growth and NUE.…”

Section: Effect On Nutrient Uptakementioning

confidence: 99%

Towards to understanding the preliminary loss and absorption of nitrogen and phosphorus under different treatments in cotton drip- irrigation in northwest Xinjiang

Pan

et al. 2021

PLoS ONE

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Drip irrigation under plastic mulch is widely used in Xinjiang, Northwest China. It can not only save water, but also reduce nutrient loss and improve fertilizer utilization. However, it is not clear whether the leaching occurs or not, what is the leaching amount? What is the relationship among fertilization, irrigation regimes, loss, cotton absorption, and cotton field under different fertilization and irrigation management under drip irrigation? Studying these issues not only provides reference for the formulation of fertilization and irrigation systems, but also is of great significance for reducing non-point source pollution. A long-term positioning experiment was conducted from 2009 to 2012 in Baotou Lake farm in Korla City, Xinjiang, with drip-irrigated cotton (Gossypium hirsutum L.) under different N fertilizer and irrigation amounts. The treatments were designed comprising Control (CK,0 N, 0 P, and 0 K with an irrigation of 480 mm) and the following three other treatments: (1) Conventional fertilize and irrigation (CON, 357 kg N hm–2, 90 kg P hm–2, 0 kg K hm–2, and irrigation of 480 mm); (2) Conventional fertilization and Optimizing irrigation (OPT, 357 kg N hm–2, 90 kg P hm–2, 62 kg K hm–2, and irrigation of 420 mm); and (3) Optimizing fertilization and irrigation (OPTN, 240 kg N hm–2, 65 kg P hm–2, 62 kg K hm–2, and irrigation of 420 mm). The results found that the leaching would occur in arid area under drip irrigation. The loss of total N, NH4+, P, N and P loss coefficient was higher under conventional fertilize and irrigation treatment while the loss of NO3- was higher under conventional fertilization and optimizing irrigation treatment. The correlations among N, P absorption by cotton, loss of NH4+ and total phosphorus were quadratic function. The total nitrogen loss and cumulative nitrogen application was lineally correlated. The loss of NO3- and cumulative nitrogen application was exponential. The nitrogen and phosphorus absorption by cotton under conventional fertilization and optimizing irrigation treatment was 24.53% and 35.86% higher than that in conventional fertilize and irrigation treatment, respectively. The cotton yield under conventional fertilization and optimizing irrigation treatment obtained higher than that in other three treatments. Therefore, the conventional fertilization and optimizing irrigation treatment was the optimal management of water and fertilizer in our study. These results demonstrate that reasonable water, nitrogen and phosphorus fertilize could not only effectively promote the absorption of nitrogen and phosphorus, but also reduce nitrogen and phosphorus losses under drip fertigation and plastic mulching.

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Section: Effect On Nutrient Uptakementioning

confidence: 99%

Towards to understanding the preliminary loss and absorption of nitrogen and phosphorus under different treatments in cotton drip- irrigation in northwest Xinjiang

Pan

et al. 2021

PLoS ONE

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“…Both ammonium (NH 4 + ) and nitrate (NO 3 − ) are the major inorganic sources of N for plants . It is well known that both rates and sources of N fertilizers have a significant effect on crop growth and development and must be managed appropriately to maximize plant growth and NUE .…”

Section: Introductionmentioning

confidence: 99%

“…It is well known that both rates and sources of N fertilizers have a significant effect on crop growth and development and must be managed appropriately to maximize plant growth and NUE . Generally, most of the crops prefer nitrate source of N, however, plants grown in acidic soils prefer ammonium source . The preference of either source depends on several factors like plant species, stage of the plant, time of application, climate, weather, and location .…”

Section: Introductionmentioning

confidence: 99%

“…Both ammonium (NH 4 + ) and nitrate (NO 3 − ) are the major inorganic sources of N for plants. 10,11 It is well known that both rates and sources of N fertilizers have a significant effect on crop growth and development 12 and must be managed appropriately to maximize plant growth and NUE. 13,14 Generally, most of the crops prefer nitrate source of N, 15 however, plants grown in acidic soils prefer ammonium source.…”

Section: Introductionmentioning

confidence: 99%

“…13,14 Generally, most of the crops prefer nitrate source of N, 15 however, plants grown in acidic soils prefer ammonium source. 11 The preference of either source depends on several factors like plant species, 16 stage of the plant, time of application, climate, weather, and location. 17 After uptake, the ammonium ion is mostly assimilated in the root avoiding accumulation of high amounts of free ammonium that would dissipate the transmembrane proton gradients required for respiratory electron transport and for sequestering metabolites in the vacuole.…”

Section: Introductionmentioning

confidence: 99%

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Nitrogen preference and genetic variation of cotton genotypes for nitrogen use efficiency

et al. 2020

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BACKGROUND Although nitrogen (N) availability is a major determinant of cotton production, little is known about the importance of plants' preference for ammonium versus nitrate for better growth and nitrogen use efficiency (NUE). We aimed to assess the growth, physiology, and NUE of contrasting N‐efficient cotton genotypes (Z‐1017, N‐efficient and GD‐89, N‐inefficient) supplied with low and high concentrations of ammonium‐ and nitrate‐N. RESULTS The results revealed that ammonium fed plants showed poor root growth, lower dry biomass, N content, leaf chlorophyll and gas exchange than those under nitrate irrespective of the concentration. However, the highest N uptake and utilization efficiency were obtained with nitrate fed plants, which also resulted in the highest dry biomass, N content, leaf chlorophyll and gas exchange as well as root growth. The results further confirmed that N‐efficient (Z‐1017) genotype performed better under both N sources, showing more flexibility to contrasting N condition by increasing growth and NUE in either source of N. Moreover, multivariate analysis showed a strong relationship of root morphological traits with N utilization efficiency, suggesting the physiological importance of roots over shoots in response to low nitrate concentration. CONCLUSION Thus, it was confirmed that nitrate‐N is superior to ammonium‐N and the use of nitrate and N‐efficient genotype is the best option for optimum cotton growth and NUE. Further, field evaluation is required to confirm the hypothesis that nitrate is a preferred N source for better cotton production and NUE. © 2020 Society of Chemical Industry

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Effects of Camellia oleifera clone selection on soil nutrient and microbial community structure

Liu¹,

Deng²,

He³

et al. 2021

Agronomy Journal

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Camellia oleifera Abel. is an important woody oil plant that could solve the disparity between the supply and demand of edible oil in China. Although numerous excellent clones have been developed and introduced to enhance production, the interactions between high yield clones and soil ecosystem sustainability remains poorly understood. The high‐yielding period of a C. oleifera plant is approximately 100 yr; therefore, appropriate clone selection is crucial. We evaluated the differences between four major clones based on soil nutrient and microbial community structure, following cultivation for 10 yr to infer the influence of clone selection on soil sustainable utilization. The results showed significant differences in soil nutrient status and rhizosphere microorganism populations among clones. The bacterial communities in the XL1 plots had the highest species richness. According to the results, clone XL1 was found to be suitable for sustainable cultivation considering the high organic matter concentration and microbial diversity in the soil where it was cultivated. Although clone XL210 exhibited high yields and good economic benefits, it had a risk of inadequate production capacity in later periods, meaning that fertilization rates would have to be increased, and some annual plants with rich rhizosphere flora would need to be integrated in the farms to enhance microbial diversity in the soil to decelerate soil fertility decline.

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Different Nitrate and Ammonium Ratios Affect Growth and Physiological Characteristics of Camellia oleifera Abel. Seedlings

Cited by 11 publications

References 32 publications

Towards to understanding the preliminary loss and absorption of nitrogen and phosphorus under different treatments in cotton drip- irrigation in northwest Xinjiang

Towards to understanding the preliminary loss and absorption of nitrogen and phosphorus under different treatments in cotton drip- irrigation in northwest Xinjiang

Nitrogen preference and genetic variation of cotton genotypes for nitrogen use efficiency

Effects of Camellia oleifera clone selection on soil nutrient and microbial community structure

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