Results 21 to 30 of about 1,380,454 (148)
, 2019 氮气是储量丰富且廉价易得的氮源,但无法被人类或动植物直接吸收利用,只有通过化学或生物方法将空气中游离的氮气转化为含氮化合物才能被人类应用于食品或其他工业生产中,因此氮气的固定及转化已经逐渐成为新的研究热点。而氨是一种非常重要的无机化工产品,其在农业、医药、储能等行业中有着重要的作用,且需求量随着社会日益发展和人口的不断增加而不断增加。首先简单介绍了现有的氮气固定合成氨方法及其作用机理,随后重点综述了氮气电化学合成氨催化剂的研究现状 ...
袁浩然, 邓丽芳, 钱鑫, 王鲁丰
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Functional Ecology, Volume 40, Issue 7, Page 2128-2142, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Soil organic nitrogen (SON) transformation is critical for global nutrient cycling and ecosystem productivity, yet how its responsiveness to climate change differs across diverse land use types remains poorly resolved.
Xinyi Yang +10 more
wiley +1 more source
Functional Ecology, Volume 40, Issue 7, Page 2221-2236, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Anthropogenic nitrogen (N) deposition is a major driver of global change. However, its effects on the developmental plasticity of plant nutrient strategies remain poorly understood.
Quan Li +11 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Engineering of the catalyst interface and modulation of transition–metal d–band play critical roles in the electrocatalytic hydrogen evolution reaction (HER). Herein, a synthetic strategy is developed to fabricate nitrogen‐doped carbon nanotubes (N–CNTs)–supported Ni3Se4–CeO2 heterojunction catalysts through a facile chemical vapor deposition (
Zhiqiang Sun +10 more
wiley +1 more source
Shuitu Baochi Xuebao, 2004 防雨池栽条件下，设置渍水、干旱和对照3个土壤水分处理，每个水分处理下再设置两个施氮水平，研究了花后渍水和干旱逆境下氮素水平对两个蛋白质含量不同的小麦品种碳氮运转的影响。结果表明，与对照相比，花后渍水和干旱处理均降低小麦叶、茎鞘、颖壳等各营养器官花前贮藏物质再运转量和再运转率以及营养器官花前贮藏物质总运转量，降低了籽粒重。水分逆境下增施氮肥可以提高小麦叶和颖壳花前贮藏物质再运转量和运转率，茎鞘花前贮藏物质再运转量和运转率 ...
范雪梅 戴廷波 姜东 荆奇 曹卫星
doaj +2 more sources
Shuitu Baochi Xuebao, 2022 探讨减氮模式下氮肥不同基追比例对滴灌春小麦氮代谢关键酶活性、氮素积累转运、产量及氮肥利用率的影响, 为新疆麦区滴灌春小麦高效生产提供科学依据。以中筋型"新春6号"(XC 6)和强筋型"新春37号"(XC 37)小麦品种为材料, 设置0∶0, 2∶8, 3∶7, 4∶6, 5∶5共5种氮肥基追比处理, 研究氮肥基追比例对滴灌春小麦氮代谢及氮肥利用率的影响。结果表明: 同一品种下, 随氮肥基追比例的增加, 氮代谢酶活性、氮素积累、氮肥利用率(NUE)、籽粒产量及蛋白质产量均呈现先升高后降低的趋势 ...
王海琪 +4 more
doaj
Functional Ecology, Volume 40, Issue 4, Page 983-1000, April 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Organic phosphorus mineralization is a critical process in the phosphorus cycle, governing phosphorus bioavailability for plants. The PhoD gene, which encodes the key enzyme alkaline phosphatase, serves as a valuable biomarker for this process.
Sandhya Mishra +3 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Cost‐effective and efficient non‐noble‐metal catalysts for selective lignin hydrogenolysis remain elusive, representing a significant challenge in biorefinery. Here, we prepared a nitrogen‐doped carbon supported CoNi bimetallic catalyst, which was successfully derived from zeolitic imidazolate framework (ZIF) via high‐temperature pyrolysis ...
Xingwei Luo +3 more
wiley +1 more source
Shuitu Baochi Xuebao, 2006 采用小粉土和青紫泥原状土柱种植青菜，研究了尿素添加DMPP（3．4-二甲基吡啶磷酸盐）硝化抑制剂对土壤氮素淋失的影响。结果表明．在60天内，与常规尿素相比，小粉土和青紫泥DMPP处理硝态氮的累积淋失量分别降低66．8％和69．4％，氨氮淋失量提高9．7％和6．7％，无机氮降低59．1％和63．0％；蔬菜收获后，土壤0～15cm层无机氮增高34．1％和28．2％，土壤中氮素纵向迁移降低。可见，DMPP抑制剂施入土壤具有显著的氨氧化抑制作用，延缓蔬菜地土壤氨氮向硝态氮的转化，减轻氮素向水体迁移的风险 ...
俞巧钢 +5 more
doaj +2 more sources
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Developing efficient catalytic thermal desorption systems is of great significance in the field of sustainable soil remediation. Herein, novel Mn–Ce solid solution modified Co3O4 nanocrystals were successfully prepared for the removal of perfluorooctanoic acid (PFOA) in soil.
Yu‐Hao Liu +8 more
wiley +1 more source