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化肥 2

磷肥 2

聚合氮 2

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农业微生物;产业发展;微生物肥料;饲用微生物;微生物农药;酶制剂微生物;微生物种业 1

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SUSTAINABLE NITROGEN MANAGEMENT FOR VEGETABLE PRODUCTION IN CHINA

《农业科学与工程前沿(英文)》 2022年 第9卷 第3期   页码 373-385 doi: 10.15302/J-FASE-2022455

摘要:

● Sustainable nitrogen management strategies for Chinese vegetable production are summarized.

关键词: enhanced-efficiency nitrogen fertilizer     integrated knowledge and products strategy     nitrogen rate     reactive nitrogen loss     vegetable     yield    

NITROGEN USE AND MANAGEMENT IN ORCHARDS AND VEGETABLE FIELDS IN CHINA: CHALLENGES AND SOLUTIONS

《农业科学与工程前沿(英文)》 2022年 第9卷 第3期   页码 386-395 doi: 10.15302/J-FASE-2022443

摘要:

● Excessive application of N fertilizers in orchards and vegetable fields (OVFs) in China is particularly common.

关键词: nitrogen fate     nitrogen fertilizer     orchards     vegetable fields    

PROPOSED INNOVATION REFORM MODEL FOR THE MINERAL NITROGEN FERTILIZER INDUSTRY IN CHINA TO REDUCE GREENHOUSE

《农业科学与工程前沿(英文)》 2023年 第10卷 第2期   页码 234-247 doi: 10.15302/J-FASE-2022468

摘要:

● The carbon footprint of the nitrogen fertilizer chain has decreased significantly over the last decade.

关键词: carbon accounting     life cycle assessment     policy     product structure    

GASEOUS REACTIVE NITROGEN LOSSES FROM ORCHARDS, VEGETABLES AND TEA PLANTATIONS

《农业科学与工程前沿(英文)》 2023年 第10卷 第2期   页码 155-166 doi: 10.15302/J-FASE-2022477

摘要:

● Gaseous N emissions from orchards, vegetables and tea plantations (OVT) are reviewed.

关键词: fruit     greenhouse gas     green development     fertilizer management     climate change    

CLIMATE-CHANGE-INDUCED TEMPORAL VARIATION IN PRECIPITATION INCREASES NITROGEN LOSSES FROM INTENSIVE CROPPING

《农业科学与工程前沿(英文)》 2022年 第9卷 第3期   页码 457-464 doi: 10.15302/J-FASE-2022452

摘要:

● A simple model was used to evaluate how increasing temporal variability in precipitation influences crop yields and nitrogen losses.

关键词: crop yield     fertilizer timing     nitrogen loss     precipitation variability     toy model    

Nitrogen-retaining property of compost in an aerobic thermophilic composting reactor for the sanitary

Fan BAI, Xiaochang WANG,

《环境科学与工程前沿(英文)》 2010年 第4卷 第2期   页码 228-234 doi: 10.1007/s11783-010-0022-7

摘要: Aerobic composting is a method for the sanitary disposal of human feces as is used in bio-toilet systems. As the products of composting can be utilized as a fertilizer, it would be beneficial if the composting conditions could be more precisely controlled for the retention of fecal nitrogen as long as possible in the compost. In this study, batch experiments were conducted using a closed aerobic thermophilic composting reactor with sawdust as the bulk matrix to simulate the condition of a bio-toilet for the sanitary disposal of human feces. Attention was paid to the characteristics of nitrogen transformation. Under the controlled conditions of temperature at 60°C, moisture content at 60%, and a continuous air supply, more than 70% fecal organic removal was obtained, while merely 17% fecal nitrogen loss was observed over a two-week composting period. The nitrogen loss was found to occur mainly in the first 24 h with the rapid depletion of inorganic nitrogen but with an almost unchanged organic nitrogen content. The fecal NH–N which was the main component of the inorganic nitrogen (>90%) decreased rapidly in the first day, decreased at a slower rate over the following days, and finally disappeared entirely. The depletion of NH–N was accompanied by the accumulation of NH gas in the ammonia absorber connected to the reactor. A mass balance between the exhausted NH gas and the fecal NH–N content in the first 24 hours indicated that the conversion of ammonium into gaseous ammonia was the main reason for nitrogen loss. Thermophilic composting could be considered as a way to keep a high organic nitrogen content in the compost for better utilization as a fertilizer.

关键词: nitrogen retention     composting reactor     human feces     aerobic     thermophilic     fertilizer    

Correction to: Highly degradable chitosan-montmorillonite (MMT) nanocomposite hydrogel for controlled fertilizer

《环境科学与工程前沿(英文)》 2023年 第17卷 第8期 doi: 10.1007/s11783-023-1704-2

氮肥行业氨氮工程减排技术评估方法研究与应用

骆其金,谌建宇,王振兴,庞志华,叶万生

《中国工程科学》 2014年 第16卷 第8期   页码 88-92

摘要:

根据国家“十二五”氨氮总量控制和典型行业氨氮减排的技术需求,本文选择氮肥工业作为典型,研究共性的工程减排技术决策方法。针对目前国内环境技术评估以定性判断为主,缺乏可操作性强的综合评估方法的状况,提出了以费用效益分析为核心,层次分析+灰色关联度为次重因素的综合评估新方法,确定了该评估方法的数学模型和过程算法,并结合实例进行分析计算和验证。

关键词: 氨氮     总量控制     综合评估    

nanocomposite biochar via a novel developed functionalization method to recover phosphate as a potential fertilizer

Nima Kamali, Abdollah Rashidi Mehrabadi, Maryam Mirabi, Mohammad Ali Zahed

《环境科学与工程前沿(英文)》 2020年 第14卷 第4期 doi: 10.1007/s11783-020-1249-6

摘要: Abstract • Nanocomposites were prepared by adding dolomite to vinasse at different ratio. • Textural and morphological features of adsorbents were studied in detail. • CCD based RSM was used for investigation of P ion removal by nanocomposite. • The qm based on Langmuir model for modified vinasse biochar was 178.57 mg/g. • P loaded nanocomposite improved plant growth and could be utilized as P-fertilizer. The effectiveness of phosphate (P) removal from aqueous solutions was investigated by novel low-cost biochars synthesized from vinasse and functionalized with calcined dolomite. The vinasse-derived biochar, synthesized via pyrolysis at different temperatures, showed easy preparation and a large surface area. The novel vinasse biochar nanocomposites were prepared by adding dolomite to the vinasse biochars with different weight percentages (10, 20 and 30%). The characteristics of the prepared materials were identified for further understanding of the inherent adsorption mechanism between P ions and vinasse biochars. Vinasse-dolomite nanocomposite was very effective in the adsorption of P species from aqueous media. The effect of the operational factors on Vinasse-dolomite nanocomposite was explored by applying response surface methodology (RSM). According to RSM results, the optimum condition was achieved to be contact time 90 (min), 250 (mg/L) of P concentration and pH 7. Thermodynamic isotherm and kinetic studies were applied on experimental data to understand the adsorption behavior. The Vinasse-dolomite nanocomposite revealed preferential P species adsorption in the presence of co-existing anions. The P species could be recovered by 1.0 M HCl where the efficiency was not affected up to the fifth cycle. The P-loaded Vinasse-dolomite nanocomposite was successfully tested on a plant; it significantly improved its growth and proved its potency as a P-based fertilizer substitute.

关键词: Biochar     Vinasse     Dolomite     Phosphate     Fertilizer    

nanocomposite biochar via a novel developed functionalization method to recover phosphate as a potential fertilizer

《环境科学与工程前沿(英文)》 2021年 第15卷 第5期 doi: 10.1007/s11783-021-1387-5

Strategies for improving fertilizer phosphorus use efficiency in Chinese cropping systems

Gu FENG, Jingping GAI, Xionghan FENG, Haigang LI, Lin ZHANG, Keke YI, Jialong LV, Yiyong ZHU, Li TANG, Yilin LI

《农业科学与工程前沿(英文)》 2019年 第6卷 第4期   页码 341-347 doi: 10.15302/J-FASE-2019280

摘要:

A four-year project, entitled “The mechanisms of fraction transformation and high use efficiency of P fertilizer in Chinese cropping systems” commenced in 2017. The project was established to answer three key questions and looked at 17 cropping systems on ten soils. First, we asked what are the dynamics of transformation, fixation and mobilization of P fertilizers in soil-cropping systems? Second, what are the mechanisms of soil-crop-microbe interactions by which P fertilizer can be efficiently used? Third, how to manipulate the processes of P use in cropping systems? The targets of this project are (1) to explore the mechanisms of P fixation, the pathways of loss of P availability and the threshold of migration of fertilizer P in the field; (2) to uncover mechanisms by which soil legacy P is mobilized through root physiological and morphological processes and through arbuscular mycorrhizal fungi and P-solubilizing bacteria in rhizosphere and hyphosphere; (3) to estimate the biological potential of crops for high efficiency P absorption and use; (4) to innovate new approaches for improving the efficiency of P fertilizers. The outcomes will provide theoretical support for setting standards for limitation of P fertilizer application rate in the main cropping zones of China.

关键词: fixation     mobilization     phosphorus fertilizer     rhizosphere     transformations     utilization    

绿色化的磷复肥生产集成工艺

冯怡生

《中国工程科学》 1999年 第1卷 第1期   页码 58-62

摘要:

磷复肥生产排放的磷石膏废渣堆存占地,污染环境,已成为亟待解决的难题。利用磷石膏制硫酸与水泥,可消除污染,实现硫资源的良性循环,使经济效益、社会效益和环境效益有机统一,促进了磷复肥工业的可持续发展。

关键词: 磷复肥     磷石膏     硫酸     水泥    

SUSTAINABLE NITROGEN MANAGEMENT IN AUSTRALIAN AGROECOSYSTEMS: CHALLENGES AND OPPORTUNITIES

《农业科学与工程前沿(英文)》 2022年 第9卷 第3期   页码 366-372 doi: 10.15302/J-FASE-2022447

摘要:

● There is huge potential for improvement of nitrogen management in Australia.

关键词: Australian agroecosystems     reactive nitrogen     sustainable development    

北方旱区农田水肥效应分析

高亚军,李生秀

《中国工程科学》 2002年 第4卷 第7期   页码 74-79

摘要:

结合多年的田间试验研究,对前人诸多研究结果进行了总结和深入分析。结果表明:农田水肥效应大小与试验方法有关,田间试验与模拟试验得到的结论相反。主要原因在于研究中"水"的概念各不相同,从旱棚试验或盆栽试验的结果推断水肥效应与实际情况相距较大。多数情况下,养分亏缺仍是北方旱区作物增产的主要限制因子。灌水的效果取决于土壤底墒、生育期降水、土壤肥力及灌水时期等各种因素。在现有的水资源条件下,提高养分供应水平是北方旱区大部分农田作物增产的主要途径。加强夏闲期降水的蓄积、提高土壤底墒是冬麦区作物高产的重要条件。

关键词: 水肥效应     北方旱区     田间试验     模拟试验    

料浆法磷铵生产工艺发展与五大磷肥工程改造

钟本和

《中国工程科学》 2004年 第6卷 第6期   页码 22-25

摘要:

针对引进磷酸浓缩工艺生产磷铵的技术不适应我国矿产资源具体情况的难题,开发了料浆法磷铵生产工艺技术,已在21个省区布点推广建设了87套装置,形成生产能力279×104 t/a的规模,占全国磷铵生产能力的60%。最近在贵州瓮福实施料浆法磷铵与引进的传统磷酸浓缩工艺联产的成功,为五大磷肥工程的改造提供了一条新的途径。

关键词: 磷肥     磷铵     料浆法磷铵    

标题 作者 时间 类型 操作

SUSTAINABLE NITROGEN MANAGEMENT FOR VEGETABLE PRODUCTION IN CHINA

期刊论文

NITROGEN USE AND MANAGEMENT IN ORCHARDS AND VEGETABLE FIELDS IN CHINA: CHALLENGES AND SOLUTIONS

期刊论文

PROPOSED INNOVATION REFORM MODEL FOR THE MINERAL NITROGEN FERTILIZER INDUSTRY IN CHINA TO REDUCE GREENHOUSE

期刊论文

GASEOUS REACTIVE NITROGEN LOSSES FROM ORCHARDS, VEGETABLES AND TEA PLANTATIONS

期刊论文

CLIMATE-CHANGE-INDUCED TEMPORAL VARIATION IN PRECIPITATION INCREASES NITROGEN LOSSES FROM INTENSIVE CROPPING

期刊论文

Nitrogen-retaining property of compost in an aerobic thermophilic composting reactor for the sanitary

Fan BAI, Xiaochang WANG,

期刊论文

Correction to: Highly degradable chitosan-montmorillonite (MMT) nanocomposite hydrogel for controlled fertilizer

期刊论文

氮肥行业氨氮工程减排技术评估方法研究与应用

骆其金,谌建宇,王振兴,庞志华,叶万生

期刊论文

nanocomposite biochar via a novel developed functionalization method to recover phosphate as a potential fertilizer

Nima Kamali, Abdollah Rashidi Mehrabadi, Maryam Mirabi, Mohammad Ali Zahed

期刊论文

nanocomposite biochar via a novel developed functionalization method to recover phosphate as a potential fertilizer

期刊论文

Strategies for improving fertilizer phosphorus use efficiency in Chinese cropping systems

Gu FENG, Jingping GAI, Xionghan FENG, Haigang LI, Lin ZHANG, Keke YI, Jialong LV, Yiyong ZHU, Li TANG, Yilin LI

期刊论文

绿色化的磷复肥生产集成工艺

冯怡生

期刊论文

SUSTAINABLE NITROGEN MANAGEMENT IN AUSTRALIAN AGROECOSYSTEMS: CHALLENGES AND OPPORTUNITIES

期刊论文

北方旱区农田水肥效应分析

高亚军,李生秀

期刊论文

料浆法磷铵生产工艺发展与五大磷肥工程改造

钟本和

期刊论文